./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 44c38e66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-1.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 81147b3e42a82bd92b2fd1c17836bc41bf8598e66ad2317620561a8ac507fa9a --- Real Ultimate output --- This is Ultimate 0.3.0-?-44c38e6-m [2025-04-24 19:12:32,298 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-24 19:12:32,353 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-04-24 19:12:32,356 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-24 19:12:32,359 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-24 19:12:32,378 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-24 19:12:32,378 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-24 19:12:32,379 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-24 19:12:32,380 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-24 19:12:32,380 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-24 19:12:32,380 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-24 19:12:32,381 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-24 19:12:32,381 INFO L153 SettingsManager]: * Use SBE=true [2025-04-24 19:12:32,381 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-24 19:12:32,381 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-24 19:12:32,381 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-24 19:12:32,382 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-24 19:12:32,382 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-24 19:12:32,382 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-24 19:12:32,382 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-24 19:12:32,382 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-24 19:12:32,382 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-24 19:12:32,382 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-24 19:12:32,382 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-24 19:12:32,382 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-24 19:12:32,382 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-24 19:12:32,382 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-24 19:12:32,382 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-24 19:12:32,382 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-24 19:12:32,383 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-24 19:12:32,383 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 19:12:32,383 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-24 19:12:32,383 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-24 19:12:32,383 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-24 19:12:32,383 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-24 19:12:32,383 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 19:12:32,384 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-24 19:12:32,384 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-24 19:12:32,384 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-24 19:12:32,384 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-04-24 19:12:32,384 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-24 19:12:32,384 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-24 19:12:32,384 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-04-24 19:12:32,384 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-24 19:12:32,384 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-04-24 19:12:32,384 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-04-24 19:12:32,384 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-04-24 19:12:32,384 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81147b3e42a82bd92b2fd1c17836bc41bf8598e66ad2317620561a8ac507fa9a [2025-04-24 19:12:32,612 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-24 19:12:32,621 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-24 19:12:32,623 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-24 19:12:32,624 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-24 19:12:32,624 INFO L274 PluginConnector]: CDTParser initialized [2025-04-24 19:12:32,626 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-1.i [2025-04-24 19:12:33,962 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/91ba4b922/11458981b9fe42b8a23c35e987df7ae6/FLAG1f7bae615 [2025-04-24 19:12:34,262 INFO L389 CDTParser]: Found 1 translation units. [2025-04-24 19:12:34,263 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-1.i [2025-04-24 19:12:34,275 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/91ba4b922/11458981b9fe42b8a23c35e987df7ae6/FLAG1f7bae615 [2025-04-24 19:12:35,012 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/91ba4b922/11458981b9fe42b8a23c35e987df7ae6 [2025-04-24 19:12:35,014 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-24 19:12:35,015 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-24 19:12:35,015 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-24 19:12:35,015 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-24 19:12:35,018 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-24 19:12:35,019 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.04 07:12:35" (1/1) ... [2025-04-24 19:12:35,019 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bece17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:12:35, skipping insertion in model container [2025-04-24 19:12:35,020 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.04 07:12:35" (1/1) ... [2025-04-24 19:12:35,051 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-24 19:12:35,184 WARN L116 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-1.i[820,833] [2025-04-24 19:12:35,351 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-24 19:12:35,362 INFO L200 MainTranslator]: Completed pre-run [2025-04-24 19:12:35,379 WARN L116 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-1.i[820,833] [2025-04-24 19:12:35,430 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-24 19:12:35,479 INFO L204 MainTranslator]: Completed translation [2025-04-24 19:12:35,479 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:12:35 WrapperNode [2025-04-24 19:12:35,480 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-24 19:12:35,480 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-24 19:12:35,480 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-24 19:12:35,480 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-24 19:12:35,485 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:12:35" (1/1) ... [2025-04-24 19:12:35,500 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:12:35" (1/1) ... [2025-04-24 19:12:35,515 INFO L138 Inliner]: procedures = 364, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 60 [2025-04-24 19:12:35,515 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-24 19:12:35,516 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-24 19:12:35,516 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-24 19:12:35,516 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-24 19:12:35,520 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:12:35" (1/1) ... [2025-04-24 19:12:35,520 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:12:35" (1/1) ... [2025-04-24 19:12:35,522 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:12:35" (1/1) ... [2025-04-24 19:12:35,522 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:12:35" (1/1) ... [2025-04-24 19:12:35,526 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:12:35" (1/1) ... [2025-04-24 19:12:35,526 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:12:35" (1/1) ... [2025-04-24 19:12:35,532 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:12:35" (1/1) ... [2025-04-24 19:12:35,533 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:12:35" (1/1) ... [2025-04-24 19:12:35,534 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:12:35" (1/1) ... [2025-04-24 19:12:35,542 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-24 19:12:35,542 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-24 19:12:35,542 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-24 19:12:35,542 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-24 19:12:35,543 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:12:35" (1/1) ... [2025-04-24 19:12:35,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 19:12:35,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 19:12:35,568 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-24 19:12:35,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-24 19:12:35,585 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-24 19:12:35,585 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-24 19:12:35,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-24 19:12:35,585 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_mutex [2025-04-24 19:12:35,585 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_mutex [2025-04-24 19:12:35,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-24 19:12:35,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-24 19:12:35,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-24 19:12:35,586 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-24 19:12:35,697 INFO L234 CfgBuilder]: Building ICFG [2025-04-24 19:12:35,698 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-24 19:12:35,827 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-24 19:12:35,827 INFO L283 CfgBuilder]: Performing block encoding [2025-04-24 19:12:35,919 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-24 19:12:35,921 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-24 19:12:35,922 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 07:12:35 BoogieIcfgContainer [2025-04-24 19:12:35,922 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-24 19:12:35,924 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-24 19:12:35,924 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-24 19:12:35,928 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-24 19:12:35,928 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.04 07:12:35" (1/3) ... [2025-04-24 19:12:35,928 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dbf4da7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.04 07:12:35, skipping insertion in model container [2025-04-24 19:12:35,928 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:12:35" (2/3) ... [2025-04-24 19:12:35,929 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dbf4da7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.04 07:12:35, skipping insertion in model container [2025-04-24 19:12:35,929 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 07:12:35" (3/3) ... [2025-04-24 19:12:35,930 INFO L128 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-1.i [2025-04-24 19:12:35,939 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-24 19:12:35,944 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pthread-demo-datarace-1.i that has 2 procedures, 22 locations, 23 edges, 1 initial locations, 2 loop locations, and 1 error locations. [2025-04-24 19:12:35,944 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-24 19:12:35,993 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-04-24 19:12:36,025 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 19:12:36,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-24 19:12:36,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 19:12:36,027 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) [2025-04-24 19:12:36,029 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 [2025-04-24 19:12:36,082 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-24 19:12:36,095 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-04-24 19:12:36,101 INFO L340 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=LoopHeads, 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;@5634cb4b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 19:12:36,102 INFO L341 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-04-24 19:12:36,201 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 19:12:36,201 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 19:12:36,202 INFO L139 ounterexampleChecker]: Examining path program with hash -1002364952, occurence #1 [2025-04-24 19:12:36,202 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 19:12:36,202 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 19:12:36,205 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 19:12:36,206 INFO L85 PathProgramCache]: Analyzing trace with hash -543277899, now seen corresponding path program 1 times [2025-04-24 19:12:36,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 19:12:36,212 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267521563] [2025-04-24 19:12:36,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 19:12:36,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 19:12:36,275 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-04-24 19:12:36,293 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-04-24 19:12:36,294 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 19:12:36,294 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:12:36,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 19:12:36,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 19:12:36,408 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267521563] [2025-04-24 19:12:36,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267521563] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 19:12:36,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 19:12:36,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-24 19:12:36,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318013889] [2025-04-24 19:12:36,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 19:12:36,412 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-24 19:12:36,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 19:12:36,424 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-24 19:12:36,424 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-24 19:12:36,424 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:12:36,425 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 19:12:36,426 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 19:12:36,426 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:12:36,529 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:12:36,529 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-24 19:12:36,529 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 19:12:36,529 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 19:12:36,530 INFO L139 ounterexampleChecker]: Examining path program with hash 1669244519, occurence #1 [2025-04-24 19:12:36,530 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 19:12:36,530 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 19:12:36,531 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 19:12:36,531 INFO L85 PathProgramCache]: Analyzing trace with hash -167581484, now seen corresponding path program 1 times [2025-04-24 19:12:36,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 19:12:36,531 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057283331] [2025-04-24 19:12:36,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 19:12:36,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 19:12:36,548 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-04-24 19:12:36,567 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-04-24 19:12:36,567 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 19:12:36,567 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:12:36,668 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 19:12:36,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 19:12:36,669 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057283331] [2025-04-24 19:12:36,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057283331] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 19:12:36,669 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466608154] [2025-04-24 19:12:36,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 19:12:36,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 19:12:36,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 19:12:36,674 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 19:12:36,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-04-24 19:12:36,727 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-04-24 19:12:36,751 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-04-24 19:12:36,752 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 19:12:36,752 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:12:36,755 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-04-24 19:12:36,758 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 19:12:36,806 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 19:12:36,806 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 19:12:36,846 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 19:12:36,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1466608154] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 19:12:36,847 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 19:12:36,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2025-04-24 19:12:36,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385199236] [2025-04-24 19:12:36,848 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 19:12:36,848 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-04-24 19:12:36,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 19:12:36,849 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-04-24 19:12:36,849 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-04-24 19:12:36,849 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:12:36,849 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 19:12:36,849 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2025-04-24 19:12:36,850 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:12:36,850 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:12:36,950 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:12:36,950 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:12:36,957 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-04-24 19:12:37,151 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2025-04-24 19:12:37,151 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 19:12:37,151 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 19:12:37,152 INFO L139 ounterexampleChecker]: Examining path program with hash 1669244519, occurence #2 [2025-04-24 19:12:37,152 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 19:12:37,152 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2025-04-24 19:12:37,165 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:12:37,165 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2025-04-24 19:12:37,165 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:37,165 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2025-04-24 19:12:37,165 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:37,165 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2025-04-24 19:12:37,165 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:37,165 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2025-04-24 19:12:37,165 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:37,165 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 20 [2025-04-24 19:12:37,165 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:37,165 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 21 [2025-04-24 19:12:37,165 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:37,165 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 29 [2025-04-24 19:12:37,165 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:37,165 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 30 [2025-04-24 19:12:37,165 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:37,165 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 31 [2025-04-24 19:12:37,165 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:37,166 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 39 [2025-04-24 19:12:37,166 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:37,166 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2025-04-24 19:12:37,166 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:37,166 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 41 [2025-04-24 19:12:37,166 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:37,166 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 51 [2025-04-24 19:12:37,166 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:12:37,166 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 19:12:37,166 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 19:12:37,166 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 19:12:37,166 INFO L85 PathProgramCache]: Analyzing trace with hash 355372209, now seen corresponding path program 2 times [2025-04-24 19:12:37,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 19:12:37,167 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715845752] [2025-04-24 19:12:37,167 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 19:12:37,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 19:12:37,199 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 55 statements into 2 equivalence classes. [2025-04-24 19:12:37,220 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 55 of 55 statements. [2025-04-24 19:12:37,222 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-24 19:12:37,222 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:12:37,409 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 19:12:37,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 19:12:37,410 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715845752] [2025-04-24 19:12:37,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715845752] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 19:12:37,410 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1157530837] [2025-04-24 19:12:37,410 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 19:12:37,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 19:12:37,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 19:12:37,412 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 19:12:37,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-04-24 19:12:37,476 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 55 statements into 2 equivalence classes. [2025-04-24 19:12:37,517 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 55 of 55 statements. [2025-04-24 19:12:37,517 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-24 19:12:37,517 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:12:37,519 INFO L256 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-04-24 19:12:37,521 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 19:12:37,673 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 19:12:37,673 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 19:12:37,836 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 19:12:37,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1157530837] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 19:12:37,837 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 19:12:37,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 19 [2025-04-24 19:12:37,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948152207] [2025-04-24 19:12:37,837 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 19:12:37,837 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-04-24 19:12:37,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 19:12:37,838 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-04-24 19:12:37,839 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=231, Unknown=0, NotChecked=0, Total=342 [2025-04-24 19:12:37,839 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:12:37,839 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 19:12:37,839 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.052631578947368) internal successors, (153), 19 states have internal predecessors, (153), 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) [2025-04-24 19:12:37,839 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:12:37,839 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:12:37,839 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:12:38,125 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:12:38,125 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:12:38,125 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-04-24 19:12:38,132 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-04-24 19:12:38,325 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 19:12:38,326 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 19:12:38,326 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 19:12:38,326 INFO L139 ounterexampleChecker]: Examining path program with hash 1778893543, occurence #1 [2025-04-24 19:12:38,326 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 19:12:38,326 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 19:12:38,326 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 19:12:38,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1729369584, now seen corresponding path program 3 times [2025-04-24 19:12:38,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 19:12:38,326 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217200921] [2025-04-24 19:12:38,326 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-24 19:12:38,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 19:12:38,349 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 95 statements into 7 equivalence classes. [2025-04-24 19:12:38,383 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 90 of 95 statements. [2025-04-24 19:12:38,383 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-04-24 19:12:38,383 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:12:38,583 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2025-04-24 19:12:38,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 19:12:38,583 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217200921] [2025-04-24 19:12:38,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217200921] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 19:12:38,583 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [584658998] [2025-04-24 19:12:38,583 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-24 19:12:38,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 19:12:38,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 19:12:38,586 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 19:12:38,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-04-24 19:12:38,657 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 95 statements into 7 equivalence classes. [2025-04-24 19:12:38,719 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 90 of 95 statements. [2025-04-24 19:12:38,719 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-04-24 19:12:38,719 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:12:38,721 INFO L256 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-04-24 19:12:38,722 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 19:12:38,787 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2025-04-24 19:12:38,787 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 19:12:38,912 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2025-04-24 19:12:38,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [584658998] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 19:12:38,913 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 19:12:38,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2025-04-24 19:12:38,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8472044] [2025-04-24 19:12:38,913 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 19:12:38,914 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-04-24 19:12:38,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 19:12:38,915 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-04-24 19:12:38,915 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2025-04-24 19:12:38,915 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:12:38,915 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 19:12:38,916 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 9.2) internal successors, (138), 15 states have internal predecessors, (138), 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) [2025-04-24 19:12:38,916 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:12:38,916 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:12:38,916 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-04-24 19:12:38,916 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:12:39,143 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:12:39,143 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:12:39,143 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-04-24 19:12:39,143 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-24 19:12:39,150 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-04-24 19:12:39,345 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 19:12:39,345 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 19:12:39,345 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 19:12:39,345 INFO L139 ounterexampleChecker]: Examining path program with hash 1669244519, occurence #3 [2025-04-24 19:12:39,345 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 19:12:39,345 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2025-04-24 19:12:39,345 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:12:39,345 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2025-04-24 19:12:39,345 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:39,345 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2025-04-24 19:12:39,345 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:39,345 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2025-04-24 19:12:39,345 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:39,346 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2025-04-24 19:12:39,346 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:39,346 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 20 [2025-04-24 19:12:39,346 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:39,346 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 21 [2025-04-24 19:12:39,346 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:39,346 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 29 [2025-04-24 19:12:39,346 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:39,346 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 30 [2025-04-24 19:12:39,346 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:39,346 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 31 [2025-04-24 19:12:39,346 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:39,346 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 39 [2025-04-24 19:12:39,346 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:39,346 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2025-04-24 19:12:39,346 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:39,346 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 41 [2025-04-24 19:12:39,346 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:39,346 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 49 [2025-04-24 19:12:39,346 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:39,346 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 50 [2025-04-24 19:12:39,346 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:39,346 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 51 [2025-04-24 19:12:39,346 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:39,346 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 59 [2025-04-24 19:12:39,346 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:39,346 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 60 [2025-04-24 19:12:39,346 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:39,346 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 61 [2025-04-24 19:12:39,346 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:39,346 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 69 [2025-04-24 19:12:39,346 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:39,346 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 70 [2025-04-24 19:12:39,346 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:39,346 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 71 [2025-04-24 19:12:39,347 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:39,347 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 79 [2025-04-24 19:12:39,347 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:39,347 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 80 [2025-04-24 19:12:39,347 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:39,347 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 81 [2025-04-24 19:12:39,347 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:39,347 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 89 [2025-04-24 19:12:39,347 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:39,347 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 90 [2025-04-24 19:12:39,347 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:39,347 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 91 [2025-04-24 19:12:39,347 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:39,347 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 99 [2025-04-24 19:12:39,347 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:39,347 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 100 [2025-04-24 19:12:39,347 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:39,347 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 101 [2025-04-24 19:12:39,347 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:39,347 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 109 [2025-04-24 19:12:39,347 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:39,347 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 110 [2025-04-24 19:12:39,347 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:39,347 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 111 [2025-04-24 19:12:39,347 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:39,347 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 119 [2025-04-24 19:12:39,347 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:39,347 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 120 [2025-04-24 19:12:39,347 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:39,347 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 121 [2025-04-24 19:12:39,348 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:39,348 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 131 [2025-04-24 19:12:39,348 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:12:39,348 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 19:12:39,348 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 19:12:39,351 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 19:12:39,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1413032105, now seen corresponding path program 4 times [2025-04-24 19:12:39,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 19:12:39,351 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202534997] [2025-04-24 19:12:39,351 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-24 19:12:39,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 19:12:39,378 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 135 statements into 2 equivalence classes. [2025-04-24 19:12:39,403 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 135 of 135 statements. [2025-04-24 19:12:39,404 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-24 19:12:39,404 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:12:39,772 INFO L134 CoverageAnalysis]: Checked inductivity of 732 backedges. 0 proven. 732 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 19:12:39,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 19:12:39,773 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202534997] [2025-04-24 19:12:39,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202534997] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 19:12:39,773 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [899451461] [2025-04-24 19:12:39,773 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-24 19:12:39,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 19:12:39,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 19:12:39,776 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 19:12:39,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-04-24 19:12:39,854 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 135 statements into 2 equivalence classes. [2025-04-24 19:12:39,953 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 135 of 135 statements. [2025-04-24 19:12:39,953 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-24 19:12:39,954 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:12:39,956 INFO L256 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-04-24 19:12:39,959 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 19:12:40,103 INFO L134 CoverageAnalysis]: Checked inductivity of 732 backedges. 0 proven. 732 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 19:12:40,103 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 19:12:40,425 INFO L134 CoverageAnalysis]: Checked inductivity of 732 backedges. 0 proven. 732 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 19:12:40,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [899451461] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 19:12:40,426 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 19:12:40,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 22 [2025-04-24 19:12:40,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159541900] [2025-04-24 19:12:40,426 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 19:12:40,427 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-04-24 19:12:40,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 19:12:40,428 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-04-24 19:12:40,428 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2025-04-24 19:12:40,428 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:12:40,428 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 19:12:40,428 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 9.409090909090908) internal successors, (207), 22 states have internal predecessors, (207), 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) [2025-04-24 19:12:40,429 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:12:40,429 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:12:40,429 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-04-24 19:12:40,429 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-24 19:12:40,429 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:12:40,682 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:12:40,682 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:12:40,682 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-04-24 19:12:40,682 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-24 19:12:40,682 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-04-24 19:12:40,690 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-04-24 19:12:40,887 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 19:12:40,887 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 19:12:40,887 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 19:12:40,887 INFO L139 ounterexampleChecker]: Examining path program with hash 1669244519, occurence #4 [2025-04-24 19:12:40,887 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 19:12:40,887 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2025-04-24 19:12:40,887 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:12:40,888 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2025-04-24 19:12:40,888 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,888 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2025-04-24 19:12:40,888 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,888 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2025-04-24 19:12:40,888 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,888 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2025-04-24 19:12:40,888 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,888 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 20 [2025-04-24 19:12:40,888 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,888 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 21 [2025-04-24 19:12:40,888 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,888 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 29 [2025-04-24 19:12:40,888 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,888 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 30 [2025-04-24 19:12:40,888 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,888 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 31 [2025-04-24 19:12:40,888 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,888 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 39 [2025-04-24 19:12:40,888 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,888 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2025-04-24 19:12:40,888 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,888 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 41 [2025-04-24 19:12:40,888 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,888 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 49 [2025-04-24 19:12:40,888 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,888 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 50 [2025-04-24 19:12:40,888 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,889 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 51 [2025-04-24 19:12:40,889 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,889 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 59 [2025-04-24 19:12:40,889 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,889 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 60 [2025-04-24 19:12:40,889 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,889 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 61 [2025-04-24 19:12:40,889 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,889 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 69 [2025-04-24 19:12:40,889 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,889 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 70 [2025-04-24 19:12:40,889 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,889 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 71 [2025-04-24 19:12:40,889 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,889 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 79 [2025-04-24 19:12:40,889 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,889 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 80 [2025-04-24 19:12:40,889 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,889 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 81 [2025-04-24 19:12:40,889 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,889 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 89 [2025-04-24 19:12:40,889 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,889 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 90 [2025-04-24 19:12:40,889 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,889 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 91 [2025-04-24 19:12:40,889 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,889 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 99 [2025-04-24 19:12:40,889 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,889 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 100 [2025-04-24 19:12:40,889 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,890 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 101 [2025-04-24 19:12:40,890 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,890 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 109 [2025-04-24 19:12:40,890 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,890 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 110 [2025-04-24 19:12:40,890 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,890 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 111 [2025-04-24 19:12:40,890 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,890 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 119 [2025-04-24 19:12:40,890 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,890 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 120 [2025-04-24 19:12:40,890 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,890 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 121 [2025-04-24 19:12:40,890 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,890 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 129 [2025-04-24 19:12:40,890 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,890 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 130 [2025-04-24 19:12:40,890 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,890 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 131 [2025-04-24 19:12:40,890 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,890 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 139 [2025-04-24 19:12:40,890 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,890 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 140 [2025-04-24 19:12:40,890 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,890 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 141 [2025-04-24 19:12:40,893 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,893 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 149 [2025-04-24 19:12:40,893 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,893 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 150 [2025-04-24 19:12:40,893 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,893 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 151 [2025-04-24 19:12:40,894 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,894 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 159 [2025-04-24 19:12:40,894 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,894 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 160 [2025-04-24 19:12:40,894 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,894 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 161 [2025-04-24 19:12:40,894 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,894 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 169 [2025-04-24 19:12:40,894 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,894 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 170 [2025-04-24 19:12:40,894 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,894 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 171 [2025-04-24 19:12:40,894 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,894 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 179 [2025-04-24 19:12:40,894 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,894 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 180 [2025-04-24 19:12:40,894 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,894 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 181 [2025-04-24 19:12:40,894 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,894 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 189 [2025-04-24 19:12:40,894 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,894 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 190 [2025-04-24 19:12:40,894 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,894 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 191 [2025-04-24 19:12:40,894 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,894 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 199 [2025-04-24 19:12:40,894 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,894 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 200 [2025-04-24 19:12:40,894 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,895 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 201 [2025-04-24 19:12:40,895 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:40,895 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 211 [2025-04-24 19:12:40,895 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:12:40,895 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 19:12:40,895 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 19:12:40,895 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 19:12:40,895 INFO L85 PathProgramCache]: Analyzing trace with hash -606006111, now seen corresponding path program 5 times [2025-04-24 19:12:40,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 19:12:40,895 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811741759] [2025-04-24 19:12:40,895 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-24 19:12:40,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 19:12:40,927 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 215 statements into 21 equivalence classes. [2025-04-24 19:12:41,035 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 21 check-sat command(s) and asserted 215 of 215 statements. [2025-04-24 19:12:41,036 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 21 check-sat command(s) [2025-04-24 19:12:41,037 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:12:41,750 INFO L134 CoverageAnalysis]: Checked inductivity of 2020 backedges. 2020 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 19:12:41,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 19:12:41,750 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811741759] [2025-04-24 19:12:41,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811741759] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 19:12:41,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 19:12:41,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2025-04-24 19:12:41,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38689444] [2025-04-24 19:12:41,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 19:12:41,751 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-04-24 19:12:41,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 19:12:41,751 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-04-24 19:12:41,751 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2025-04-24 19:12:41,752 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:12:41,752 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 19:12:41,752 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 9.347826086956522) internal successors, (215), 23 states have internal predecessors, (215), 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) [2025-04-24 19:12:41,752 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:12:41,752 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:12:41,752 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-04-24 19:12:41,752 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-24 19:12:41,752 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2025-04-24 19:12:41,752 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:12:42,213 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:12:42,213 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:12:42,213 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-04-24 19:12:42,213 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-24 19:12:42,213 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-04-24 19:12:42,213 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-24 19:12:42,214 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-04-24 19:12:42,214 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 19:12:42,214 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 19:12:42,214 INFO L139 ounterexampleChecker]: Examining path program with hash 49740397, occurence #1 [2025-04-24 19:12:42,214 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 19:12:42,214 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 19:12:42,214 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 19:12:42,214 INFO L85 PathProgramCache]: Analyzing trace with hash -2007654064, now seen corresponding path program 6 times [2025-04-24 19:12:42,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 19:12:42,214 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918790453] [2025-04-24 19:12:42,215 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-24 19:12:42,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 19:12:42,235 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 210 statements into 21 equivalence classes. [2025-04-24 19:12:42,312 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 21 check-sat command(s) and asserted 210 of 210 statements. [2025-04-24 19:12:42,312 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 21 check-sat command(s) [2025-04-24 19:12:42,312 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:12:44,333 INFO L134 CoverageAnalysis]: Checked inductivity of 1920 backedges. 0 proven. 1920 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 19:12:44,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 19:12:44,334 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918790453] [2025-04-24 19:12:44,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918790453] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 19:12:44,334 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1601892642] [2025-04-24 19:12:44,334 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-24 19:12:44,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 19:12:44,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 19:12:44,336 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 19:12:44,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-04-24 19:12:44,431 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 210 statements into 21 equivalence classes. [2025-04-24 19:12:44,667 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 21 check-sat command(s) and asserted 210 of 210 statements. [2025-04-24 19:12:44,667 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 21 check-sat command(s) [2025-04-24 19:12:44,667 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:12:44,671 INFO L256 TraceCheckSpWp]: Trace formula consists of 878 conjuncts, 128 conjuncts are in the unsatisfiable core [2025-04-24 19:12:44,675 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 19:12:44,921 INFO L134 CoverageAnalysis]: Checked inductivity of 1920 backedges. 0 proven. 1920 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 19:12:44,921 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 19:12:45,126 INFO L134 CoverageAnalysis]: Checked inductivity of 1920 backedges. 0 proven. 1920 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 19:12:45,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1601892642] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 19:12:45,126 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 19:12:45,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43, 43] total 44 [2025-04-24 19:12:45,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123462322] [2025-04-24 19:12:45,126 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 19:12:45,127 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2025-04-24 19:12:45,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 19:12:45,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2025-04-24 19:12:45,128 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1892, Unknown=0, NotChecked=0, Total=1980 [2025-04-24 19:12:45,128 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:12:45,128 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 19:12:45,129 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 4.711111111111111) internal successors, (212), 44 states have internal predecessors, (212), 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) [2025-04-24 19:12:45,129 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:12:45,129 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:12:45,129 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-04-24 19:12:45,129 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-24 19:12:45,129 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2025-04-24 19:12:45,129 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-24 19:12:45,129 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:12:47,440 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:12:47,440 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:12:47,440 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-04-24 19:12:47,440 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-24 19:12:47,440 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-04-24 19:12:47,440 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-24 19:12:47,440 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2025-04-24 19:12:47,447 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-04-24 19:12:47,640 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 19:12:47,641 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 19:12:47,641 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 19:12:47,641 INFO L139 ounterexampleChecker]: Examining path program with hash 1194837111, occurence #1 [2025-04-24 19:12:47,641 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 19:12:47,641 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 19:12:47,641 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 19:12:47,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1347504666, now seen corresponding path program 7 times [2025-04-24 19:12:47,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 19:12:47,642 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554321026] [2025-04-24 19:12:47,642 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-24 19:12:47,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 19:12:47,663 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 215 statements into 1 equivalence classes. [2025-04-24 19:12:47,687 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 215 of 215 statements. [2025-04-24 19:12:47,688 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 19:12:47,688 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:12:48,180 INFO L134 CoverageAnalysis]: Checked inductivity of 1921 backedges. 1730 proven. 191 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 19:12:48,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 19:12:48,180 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554321026] [2025-04-24 19:12:48,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554321026] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 19:12:48,180 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2084005019] [2025-04-24 19:12:48,180 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-24 19:12:48,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 19:12:48,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 19:12:48,184 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 19:12:48,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-04-24 19:12:48,286 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 215 statements into 1 equivalence classes. [2025-04-24 19:12:48,354 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 215 of 215 statements. [2025-04-24 19:12:48,354 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 19:12:48,354 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:12:48,357 INFO L256 TraceCheckSpWp]: Trace formula consists of 897 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-04-24 19:12:48,362 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 19:12:48,544 INFO L134 CoverageAnalysis]: Checked inductivity of 1921 backedges. 1921 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 19:12:48,545 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-24 19:12:48,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2084005019] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 19:12:48,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-24 19:12:48,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [23] total 24 [2025-04-24 19:12:48,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3568430] [2025-04-24 19:12:48,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 19:12:48,546 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-04-24 19:12:48,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 19:12:48,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-04-24 19:12:48,547 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=256, Invalid=296, Unknown=0, NotChecked=0, Total=552 [2025-04-24 19:12:48,547 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:12:48,547 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 19:12:48,547 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 9.347826086956522) internal successors, (215), 23 states have internal predecessors, (215), 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) [2025-04-24 19:12:48,548 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:12:48,548 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:12:48,548 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-04-24 19:12:48,548 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-24 19:12:48,548 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2025-04-24 19:12:48,548 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-24 19:12:48,548 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2025-04-24 19:12:48,548 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:12:49,108 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:12:49,108 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:12:49,108 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-04-24 19:12:49,108 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-24 19:12:49,108 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-04-24 19:12:49,108 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-24 19:12:49,108 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2025-04-24 19:12:49,108 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-24 19:12:49,119 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-04-24 19:12:49,309 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2025-04-24 19:12:49,309 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 19:12:49,309 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 19:12:49,309 INFO L139 ounterexampleChecker]: Examining path program with hash 1194837111, occurence #2 [2025-04-24 19:12:49,309 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 19:12:49,309 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2025-04-24 19:12:49,309 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:12:49,309 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2025-04-24 19:12:49,309 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,309 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2025-04-24 19:12:49,309 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,309 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2025-04-24 19:12:49,309 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,309 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2025-04-24 19:12:49,309 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,310 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 20 [2025-04-24 19:12:49,310 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,310 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 21 [2025-04-24 19:12:49,310 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,310 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 29 [2025-04-24 19:12:49,310 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,310 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 30 [2025-04-24 19:12:49,310 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,310 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 31 [2025-04-24 19:12:49,310 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,310 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 39 [2025-04-24 19:12:49,310 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,310 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2025-04-24 19:12:49,310 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,310 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 41 [2025-04-24 19:12:49,310 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,311 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 49 [2025-04-24 19:12:49,311 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,311 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 50 [2025-04-24 19:12:49,311 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,311 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 51 [2025-04-24 19:12:49,311 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,311 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 59 [2025-04-24 19:12:49,311 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,311 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 60 [2025-04-24 19:12:49,311 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,311 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 61 [2025-04-24 19:12:49,311 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,311 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 69 [2025-04-24 19:12:49,311 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,312 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 70 [2025-04-24 19:12:49,312 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,312 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 71 [2025-04-24 19:12:49,312 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,312 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 79 [2025-04-24 19:12:49,312 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,312 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 80 [2025-04-24 19:12:49,312 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,312 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 81 [2025-04-24 19:12:49,312 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,312 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 89 [2025-04-24 19:12:49,312 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,312 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 90 [2025-04-24 19:12:49,312 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,312 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 91 [2025-04-24 19:12:49,312 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,312 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 99 [2025-04-24 19:12:49,312 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,312 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 100 [2025-04-24 19:12:49,312 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,312 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 101 [2025-04-24 19:12:49,312 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,312 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 109 [2025-04-24 19:12:49,312 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,313 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 110 [2025-04-24 19:12:49,313 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,313 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 111 [2025-04-24 19:12:49,313 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,313 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 119 [2025-04-24 19:12:49,313 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,313 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 120 [2025-04-24 19:12:49,313 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,313 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 121 [2025-04-24 19:12:49,313 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,313 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 129 [2025-04-24 19:12:49,313 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,313 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 130 [2025-04-24 19:12:49,313 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,313 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 131 [2025-04-24 19:12:49,313 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,313 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 139 [2025-04-24 19:12:49,313 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,314 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 140 [2025-04-24 19:12:49,314 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,314 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 141 [2025-04-24 19:12:49,314 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,314 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 149 [2025-04-24 19:12:49,314 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,314 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 150 [2025-04-24 19:12:49,314 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,314 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 151 [2025-04-24 19:12:49,314 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,314 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 159 [2025-04-24 19:12:49,314 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,314 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 160 [2025-04-24 19:12:49,314 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,314 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 161 [2025-04-24 19:12:49,314 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,314 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 169 [2025-04-24 19:12:49,314 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,314 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 170 [2025-04-24 19:12:49,314 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,314 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 171 [2025-04-24 19:12:49,314 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,314 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 179 [2025-04-24 19:12:49,314 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,314 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 180 [2025-04-24 19:12:49,314 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,314 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 181 [2025-04-24 19:12:49,314 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,314 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 189 [2025-04-24 19:12:49,314 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,314 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 190 [2025-04-24 19:12:49,314 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,314 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 191 [2025-04-24 19:12:49,314 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,314 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 195 [2025-04-24 19:12:49,314 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,314 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 196 [2025-04-24 19:12:49,314 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,314 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 197 [2025-04-24 19:12:49,314 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,314 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 199 [2025-04-24 19:12:49,314 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:12:49,317 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 200 [2025-04-24 19:12:49,317 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:12:49,317 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 19:12:49,317 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 19:12:49,318 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 19:12:49,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1683294713, now seen corresponding path program 8 times [2025-04-24 19:12:49,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 19:12:49,319 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413109576] [2025-04-24 19:12:49,319 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 19:12:49,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 19:12:49,340 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 205 statements into 2 equivalence classes. [2025-04-24 19:12:49,354 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 205 of 205 statements. [2025-04-24 19:12:49,354 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-24 19:12:49,354 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:12:49,792 INFO L134 CoverageAnalysis]: Checked inductivity of 1730 backedges. 0 proven. 1729 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-24 19:12:49,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 19:12:49,793 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413109576] [2025-04-24 19:12:49,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413109576] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 19:12:49,793 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218929792] [2025-04-24 19:12:49,793 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 19:12:49,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 19:12:49,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 19:12:49,795 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 19:12:49,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-04-24 19:12:49,913 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 205 statements into 2 equivalence classes. [2025-04-24 19:12:49,980 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 205 of 205 statements. [2025-04-24 19:12:49,980 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-24 19:12:49,980 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:12:49,983 INFO L256 TraceCheckSpWp]: Trace formula consists of 857 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-04-24 19:12:49,986 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 19:12:50,158 INFO L134 CoverageAnalysis]: Checked inductivity of 1730 backedges. 0 proven. 1729 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-24 19:12:50,158 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 19:12:50,477 INFO L134 CoverageAnalysis]: Checked inductivity of 1730 backedges. 0 proven. 1729 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-24 19:12:50,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1218929792] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 19:12:50,477 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 19:12:50,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 23 [2025-04-24 19:12:50,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353533319] [2025-04-24 19:12:50,478 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 19:12:50,478 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-04-24 19:12:50,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 19:12:50,479 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-04-24 19:12:50,479 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2025-04-24 19:12:50,479 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:12:50,479 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 19:12:50,479 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 9.217391304347826) internal successors, (212), 23 states have internal predecessors, (212), 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) [2025-04-24 19:12:50,479 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:12:50,479 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:12:50,479 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-04-24 19:12:50,479 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-24 19:12:50,479 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2025-04-24 19:12:50,479 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-24 19:12:50,479 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2025-04-24 19:12:50,479 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-24 19:12:50,479 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:12:53,788 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:12:53,789 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:12:53,789 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2025-04-24 19:12:53,789 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-24 19:12:53,789 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-04-24 19:12:53,789 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-24 19:12:53,789 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2025-04-24 19:12:53,790 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-24 19:12:53,791 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-04-24 19:12:53,793 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2025-04-24 19:12:53,793 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2025-04-24 19:12:53,801 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-04-24 19:12:53,994 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 19:12:53,998 INFO L422 BasicCegarLoop]: Path program histogram: [8, 1] [2025-04-24 19:12:54,000 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-24 19:12:54,000 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-24 19:12:54,008 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 [2025-04-24 19:12:54,009 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.04 07:12:54 BasicIcfg [2025-04-24 19:12:54,009 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-24 19:12:54,009 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-24 19:12:54,009 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-24 19:12:54,009 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-24 19:12:54,010 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 07:12:35" (3/4) ... [2025-04-24 19:12:54,011 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-04-24 19:12:54,013 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_function_mutex [2025-04-24 19:12:54,016 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 44 nodes and edges [2025-04-24 19:12:54,016 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2025-04-24 19:12:54,016 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-04-24 19:12:54,016 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-04-24 19:12:54,068 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2025-04-24 19:12:54,068 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.yml [2025-04-24 19:12:54,068 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-24 19:12:54,069 INFO L158 Benchmark]: Toolchain (without parser) took 19054.20ms. Allocated memory was 142.6MB in the beginning and 478.2MB in the end (delta: 335.5MB). Free memory was 103.8MB in the beginning and 324.1MB in the end (delta: -220.3MB). Peak memory consumption was 115.7MB. Max. memory is 16.1GB. [2025-04-24 19:12:54,070 INFO L158 Benchmark]: CDTParser took 0.46ms. Allocated memory is still 201.3MB. Free memory is still 126.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-24 19:12:54,070 INFO L158 Benchmark]: CACSL2BoogieTranslator took 464.41ms. Allocated memory is still 142.6MB. Free memory was 103.8MB in the beginning and 63.4MB in the end (delta: 40.4MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-04-24 19:12:54,070 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.02ms. Allocated memory is still 142.6MB. Free memory was 63.4MB in the beginning and 61.5MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-24 19:12:54,071 INFO L158 Benchmark]: Boogie Preprocessor took 26.23ms. Allocated memory is still 142.6MB. Free memory was 61.5MB in the beginning and 60.6MB in the end (delta: 938.8kB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-24 19:12:54,071 INFO L158 Benchmark]: RCFGBuilder took 379.56ms. Allocated memory is still 142.6MB. Free memory was 60.6MB in the beginning and 38.3MB in the end (delta: 22.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-04-24 19:12:54,071 INFO L158 Benchmark]: TraceAbstraction took 18084.42ms. Allocated memory was 142.6MB in the beginning and 478.2MB in the end (delta: 335.5MB). Free memory was 38.3MB in the beginning and 328.4MB in the end (delta: -290.1MB). Peak memory consumption was 48.6MB. Max. memory is 16.1GB. [2025-04-24 19:12:54,071 INFO L158 Benchmark]: Witness Printer took 59.06ms. Allocated memory is still 478.2MB. Free memory was 328.4MB in the beginning and 324.1MB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-24 19:12:54,072 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46ms. Allocated memory is still 201.3MB. Free memory is still 126.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 464.41ms. Allocated memory is still 142.6MB. Free memory was 103.8MB in the beginning and 63.4MB in the end (delta: 40.4MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.02ms. Allocated memory is still 142.6MB. Free memory was 63.4MB in the beginning and 61.5MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.23ms. Allocated memory is still 142.6MB. Free memory was 61.5MB in the beginning and 60.6MB in the end (delta: 938.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 379.56ms. Allocated memory is still 142.6MB. Free memory was 60.6MB in the beginning and 38.3MB in the end (delta: 22.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 18084.42ms. Allocated memory was 142.6MB in the beginning and 478.2MB in the end (delta: 335.5MB). Free memory was 38.3MB in the beginning and 328.4MB in the end (delta: -290.1MB). Peak memory consumption was 48.6MB. Max. memory is 16.1GB. * Witness Printer took 59.06ms. Allocated memory is still 478.2MB. Free memory was 328.4MB in the beginning and 324.1MB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 32304, independent: 25502, independent conditional: 25377, independent unconditional: 125, dependent: 6802, dependent conditional: 6796, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 27757, independent: 25502, independent conditional: 25377, independent unconditional: 125, dependent: 2255, dependent conditional: 2249, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 27757, independent: 25502, independent conditional: 25377, independent unconditional: 125, dependent: 2255, dependent conditional: 2249, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 45806, independent: 25502, independent conditional: 25377, independent unconditional: 125, dependent: 20304, dependent conditional: 20298, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 45806, independent: 25502, independent conditional: 0, independent unconditional: 25502, dependent: 20304, dependent conditional: 762, dependent unconditional: 19542, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 45806, independent: 25502, independent conditional: 0, independent unconditional: 25502, dependent: 20304, dependent conditional: 762, dependent unconditional: 19542, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 183, independent: 100, independent conditional: 0, independent unconditional: 100, dependent: 83, dependent conditional: 77, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 183, independent: 95, independent conditional: 0, independent unconditional: 95, dependent: 88, dependent conditional: 0, dependent unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 88, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 83, dependent conditional: 77, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 88, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 83, dependent conditional: 77, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 450, independent: 50, independent conditional: 0, independent unconditional: 50, dependent: 400, dependent conditional: 311, dependent unconditional: 89, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 45806, independent: 25402, independent conditional: 0, independent unconditional: 25402, dependent: 20221, dependent conditional: 685, dependent unconditional: 19536, unknown: 183, unknown conditional: 77, unknown unconditional: 106] , Statistics on independence cache: Total cache size (in pairs): 183, Positive cache size: 100, Positive conditional cache size: 0, Positive unconditional cache size: 100, Negative cache size: 83, Negative conditional cache size: 77, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 44913, Maximal queried relation: 9, Independence queries for same thread: 4547, Persistent sets #1 benchmarks: Persistent set computation time: 0.2s, Number of persistent set computation: 80, Number of trivial persistent sets: 74, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 131, independent: 125, independent conditional: 0, independent unconditional: 125, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 32304, independent: 25502, independent conditional: 25377, independent unconditional: 125, dependent: 6802, dependent conditional: 6796, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 27757, independent: 25502, independent conditional: 25377, independent unconditional: 125, dependent: 2255, dependent conditional: 2249, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 27757, independent: 25502, independent conditional: 25377, independent unconditional: 125, dependent: 2255, dependent conditional: 2249, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 45806, independent: 25502, independent conditional: 25377, independent unconditional: 125, dependent: 20304, dependent conditional: 20298, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 45806, independent: 25502, independent conditional: 0, independent unconditional: 25502, dependent: 20304, dependent conditional: 762, dependent unconditional: 19542, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 45806, independent: 25502, independent conditional: 0, independent unconditional: 25502, dependent: 20304, dependent conditional: 762, dependent unconditional: 19542, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 183, independent: 100, independent conditional: 0, independent unconditional: 100, dependent: 83, dependent conditional: 77, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 183, independent: 95, independent conditional: 0, independent unconditional: 95, dependent: 88, dependent conditional: 0, dependent unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 88, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 83, dependent conditional: 77, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 88, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 83, dependent conditional: 77, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 450, independent: 50, independent conditional: 0, independent unconditional: 50, dependent: 400, dependent conditional: 311, dependent unconditional: 89, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 45806, independent: 25402, independent conditional: 0, independent unconditional: 25402, dependent: 20221, dependent conditional: 685, dependent unconditional: 19536, unknown: 183, unknown conditional: 77, unknown unconditional: 106] , Statistics on independence cache: Total cache size (in pairs): 183, Positive cache size: 100, Positive conditional cache size: 0, Positive unconditional cache size: 100, Negative cache size: 83, Negative conditional cache size: 77, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 44913, Maximal queried relation: 9, Independence queries for same thread: 4547 - PositiveResult [Line: 13]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 3 procedures, 30 locations, 33 edges, 2 error locations. Started 1 CEGAR loops. OverallTime: 17.9s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 8, EmptinessCheckTime: 7.7s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 236, 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: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 6.8s InterpolantComputationTime, 2110 NumberOfCodeBlocks, 2100 NumberOfCodeBlocksAsserted, 92 NumberOfCheckSat, 2813 ConstructedInterpolants, 0 QuantifiedInterpolants, 7911 SizeOfPredicates, 22 NumberOfNonLiveVariables, 4013 ConjunctsInSsa, 202 ConjunctsInUnsatCore, 22 InterpolantComputations, 3 PerfectInterpolantSequences, 5917/19911 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, ConComCheckerStatistics: SuccessfulCommutativityProofs: 0, ConComChecker Statistics: CheckTime [ms]: 13, ConditionCalculationTime [ms]: 0, ConditionCalculations: 169, QuantifiedConditions: 0, TraceChecks: 0, UnknownTraceChecks: 0, UnsatisfiedConditions: 0, ImperfectProofs: 0 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-24 19:12:54,086 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE