./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread/stack_longest-1.i --traceabstraction.use.conditional.por.in.concurrent.analysis true --traceabstraction.commutativity.condition.synthesis SUFFICIENT --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ebd41074 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/pthread/stack_longest-1.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 529fe0895c01c52d9b18b51c32204a307faf547c0c07b22bc1a431308affcf90 --traceabstraction.use.conditional.por.in.concurrent.analysis true --traceabstraction.commutativity.condition.synthesis SUFFICIENT --- Real Ultimate output --- This is Ultimate 0.3.0-dev-ebd4107-m [2025-01-23 14:59:46,369 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-23 14:59:46,467 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-01-23 14:59:46,471 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-23 14:59:46,472 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-23 14:59:46,488 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-23 14:59:46,489 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-23 14:59:46,489 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-23 14:59:46,489 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-23 14:59:46,489 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-23 14:59:46,490 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-23 14:59:46,490 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-23 14:59:46,490 INFO L153 SettingsManager]: * Use SBE=true [2025-01-23 14:59:46,490 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-23 14:59:46,490 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-23 14:59:46,490 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-23 14:59:46,491 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-23 14:59:46,491 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-23 14:59:46,491 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-23 14:59:46,491 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-23 14:59:46,491 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-23 14:59:46,491 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-23 14:59:46,491 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-23 14:59:46,491 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-23 14:59:46,492 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-23 14:59:46,492 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-23 14:59:46,492 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-23 14:59:46,492 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-23 14:59:46,492 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-23 14:59:46,492 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-23 14:59:46,492 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-23 14:59:46,493 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-23 14:59:46,493 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-23 14:59:46,493 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-23 14:59:46,493 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-01-23 14:59:46,493 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-23 14:59:46,493 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-23 14:59:46,493 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-01-23 14:59:46,493 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-23 14:59:46,493 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-23 14:59:46,494 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-01-23 14:59:46,494 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-01-23 14:59:46,494 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-01-23 14:59:46,494 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-jdk21/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 -> 529fe0895c01c52d9b18b51c32204a307faf547c0c07b22bc1a431308affcf90 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use conditional POR in concurrent analysis -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> SUFFICIENT [2025-01-23 14:59:46,802 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-23 14:59:46,812 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-23 14:59:46,814 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-23 14:59:46,816 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-23 14:59:46,816 INFO L274 PluginConnector]: CDTParser initialized [2025-01-23 14:59:46,817 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread/stack_longest-1.i [2025-01-23 14:59:48,036 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/1a921fef5/1ed416885a3745c8818e02485929a782/FLAG897c21b82 [2025-01-23 14:59:48,320 INFO L384 CDTParser]: Found 1 translation units. [2025-01-23 14:59:48,322 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread/stack_longest-1.i [2025-01-23 14:59:48,340 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/1a921fef5/1ed416885a3745c8818e02485929a782/FLAG897c21b82 [2025-01-23 14:59:48,357 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/1a921fef5/1ed416885a3745c8818e02485929a782 [2025-01-23 14:59:48,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-23 14:59:48,361 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-23 14:59:48,362 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-23 14:59:48,362 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-23 14:59:48,366 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-23 14:59:48,367 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 02:59:48" (1/1) ... [2025-01-23 14:59:48,367 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bcfaa74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:59:48, skipping insertion in model container [2025-01-23 14:59:48,368 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 02:59:48" (1/1) ... [2025-01-23 14:59:48,407 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-23 14:59:48,822 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread/stack_longest-1.i[41530,41543] [2025-01-23 14:59:48,849 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-23 14:59:48,891 INFO L200 MainTranslator]: Completed pre-run [2025-01-23 14:59:48,999 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread/stack_longest-1.i[41530,41543] [2025-01-23 14:59:49,010 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-23 14:59:49,168 INFO L204 MainTranslator]: Completed translation [2025-01-23 14:59:49,170 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:59:49 WrapperNode [2025-01-23 14:59:49,170 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-23 14:59:49,171 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-23 14:59:49,171 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-23 14:59:49,171 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-23 14:59:49,176 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:59:49" (1/1) ... [2025-01-23 14:59:49,199 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:59:49" (1/1) ... [2025-01-23 14:59:49,248 INFO L138 Inliner]: procedures = 277, calls = 831, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 946 [2025-01-23 14:59:49,249 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-23 14:59:49,249 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-23 14:59:49,249 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-23 14:59:49,250 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-23 14:59:49,256 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:59:49" (1/1) ... [2025-01-23 14:59:49,256 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:59:49" (1/1) ... [2025-01-23 14:59:49,263 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:59:49" (1/1) ... [2025-01-23 14:59:49,264 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:59:49" (1/1) ... [2025-01-23 14:59:49,290 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:59:49" (1/1) ... [2025-01-23 14:59:49,292 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:59:49" (1/1) ... [2025-01-23 14:59:49,294 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:59:49" (1/1) ... [2025-01-23 14:59:49,297 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:59:49" (1/1) ... [2025-01-23 14:59:49,299 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:59:49" (1/1) ... [2025-01-23 14:59:49,303 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-23 14:59:49,304 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-23 14:59:49,304 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-23 14:59:49,304 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-23 14:59:49,305 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:59:49" (1/1) ... [2025-01-23 14:59:49,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-23 14:59:49,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 14:59:49,335 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2025-01-23 14:59:49,341 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2025-01-23 14:59:49,355 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2025-01-23 14:59:49,355 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2025-01-23 14:59:49,355 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2025-01-23 14:59:49,355 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2025-01-23 14:59:49,356 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-01-23 14:59:49,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-01-23 14:59:49,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-01-23 14:59:49,356 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-01-23 14:59:49,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-23 14:59:49,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-01-23 14:59:49,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-23 14:59:49,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-23 14:59:49,357 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-23 14:59:49,487 INFO L234 CfgBuilder]: Building ICFG [2025-01-23 14:59:49,488 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-23 14:59:50,619 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-23 14:59:50,620 INFO L283 CfgBuilder]: Performing block encoding [2025-01-23 15:00:00,531 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-23 15:00:00,534 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-23 15:00:00,534 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 03:00:00 BoogieIcfgContainer [2025-01-23 15:00:00,534 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-23 15:00:00,537 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-23 15:00:00,538 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-23 15:00:00,542 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-23 15:00:00,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.01 02:59:48" (1/3) ... [2025-01-23 15:00:00,543 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13b772db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.01 03:00:00, skipping insertion in model container [2025-01-23 15:00:00,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:59:49" (2/3) ... [2025-01-23 15:00:00,544 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13b772db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.01 03:00:00, skipping insertion in model container [2025-01-23 15:00:00,545 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 03:00:00" (3/3) ... [2025-01-23 15:00:00,546 INFO L128 eAbstractionObserver]: Analyzing ICFG stack_longest-1.i [2025-01-23 15:00:00,559 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-23 15:00:00,561 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG stack_longest-1.i that has 3 procedures, 31 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2025-01-23 15:00:00,561 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-23 15:00:00,636 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-01-23 15:00:00,677 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 15:00:00,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-01-23 15:00:00,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 15:00:00,681 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-01-23 15:00:00,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-01-23 15:00:00,768 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-23 15:00:00,782 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t1Thread1of1ForFork1 ======== [2025-01-23 15:00:00,789 INFO L333 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;@55e8c216, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 15:00:00,790 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-23 15:00:01,480 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 15:00:01,480 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 15:00:01,480 INFO L139 ounterexampleChecker]: Examining path program with hash -2108946939, occurence #1 [2025-01-23 15:00:01,481 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 15:00:01,481 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 15:00:01,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 15:00:01,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1757756655, now seen corresponding path program 1 times [2025-01-23 15:00:01,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 15:00:01,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156936605] [2025-01-23 15:00:01,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 15:00:01,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 15:00:01,587 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-23 15:00:01,791 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-23 15:00:01,791 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 15:00:01,792 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 15:00:02,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 15:00:02,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 15:00:02,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156936605] [2025-01-23 15:00:02,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156936605] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 15:00:02,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 15:00:02,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-23 15:00:02,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633447845] [2025-01-23 15:00:02,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 15:00:02,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-23 15:00:02,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 15:00:02,412 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-23 15:00:02,413 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-23 15:00:02,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 15:00:02,415 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 15:00:02,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2025-01-23 15:00:02,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 15:00:02,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 15:00:02,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-23 15:00:02,998 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 15:00:02,998 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 15:00:02,999 INFO L139 ounterexampleChecker]: Examining path program with hash 1099872589, occurence #1 [2025-01-23 15:00:02,999 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 15:00:02,999 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 15:00:02,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 15:00:02,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1554935456, now seen corresponding path program 1 times [2025-01-23 15:00:02,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 15:00:02,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233919029] [2025-01-23 15:00:02,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 15:00:02,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 15:00:03,037 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-01-23 15:00:03,081 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-01-23 15:00:03,083 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 15:00:03,083 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 15:00:03,330 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 15:00:03,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 15:00:03,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233919029] [2025-01-23 15:00:03,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233919029] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 15:00:03,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 15:00:03,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-23 15:00:03,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898429045] [2025-01-23 15:00:03,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 15:00:03,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-23 15:00:03,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 15:00:03,334 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-23 15:00:03,335 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-23 15:00:03,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 15:00:03,335 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 15:00:03,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-23 15:00:03,335 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 15:00:03,335 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 15:00:03,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 15:00:03,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 15:00:03,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-23 15:00:03,434 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 15:00:03,434 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 15:00:03,434 INFO L139 ounterexampleChecker]: Examining path program with hash -691886530, occurence #1 [2025-01-23 15:00:03,434 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 15:00:03,434 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 15:00:03,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 15:00:03,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1104007711, now seen corresponding path program 1 times [2025-01-23 15:00:03,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 15:00:03,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221420413] [2025-01-23 15:00:03,435 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 15:00:03,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 15:00:03,474 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-01-23 15:00:03,510 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-01-23 15:00:03,510 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 15:00:03,510 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 15:00:03,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 15:00:03,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 15:00:03,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221420413] [2025-01-23 15:00:03,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221420413] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 15:00:03,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 15:00:03,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-23 15:00:03,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863676150] [2025-01-23 15:00:03,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 15:00:03,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-23 15:00:03,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 15:00:03,832 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-23 15:00:03,832 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-23 15:00:03,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 15:00:03,832 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 15:00:03,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-23 15:00:03,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 15:00:03,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 15:00:03,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 15:00:03,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 15:00:03,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 15:00:03,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 15:00:03,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-23 15:00:03,917 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 15:00:03,917 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 15:00:03,917 INFO L139 ounterexampleChecker]: Examining path program with hash 112247985, occurence #1 [2025-01-23 15:00:03,917 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 15:00:03,917 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 15:00:03,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 15:00:03,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1343367421, now seen corresponding path program 1 times [2025-01-23 15:00:03,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 15:00:03,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847637853] [2025-01-23 15:00:03,918 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 15:00:03,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 15:00:03,956 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-01-23 15:00:03,991 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-01-23 15:00:03,991 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 15:00:03,991 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 15:00:04,536 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 15:00:04,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 15:00:04,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847637853] [2025-01-23 15:00:04,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847637853] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 15:00:04,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585146811] [2025-01-23 15:00:04,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 15:00:04,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 15:00:04,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 15:00:04,550 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 15:00:04,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-23 15:00:04,648 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-01-23 15:00:04,910 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-01-23 15:00:04,910 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 15:00:04,910 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 15:00:04,917 INFO L256 TraceCheckSpWp]: Trace formula consists of 1771 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-23 15:00:04,926 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 15:00:04,964 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:05,176 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 15:00:05,177 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 15:00:05,238 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 15:00:05,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1585146811] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 15:00:05,239 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 15:00:05,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2025-01-23 15:00:05,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845948888] [2025-01-23 15:00:05,239 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 15:00:05,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-01-23 15:00:05,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 15:00:05,240 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-01-23 15:00:05,241 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2025-01-23 15:00:05,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 15:00:05,241 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 15:00:05,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 states have internal predecessors, (67), 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) [2025-01-23 15:00:05,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 15:00:05,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 15:00:05,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 15:00:05,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 15:00:05,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 15:00:05,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 15:00:05,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 15:00:05,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-23 15:00:05,558 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-01-23 15:00:05,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 15:00:05,749 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 15:00:05,749 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 15:00:05,750 INFO L139 ounterexampleChecker]: Examining path program with hash 734054636, occurence #1 [2025-01-23 15:00:05,750 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 15:00:05,750 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 15:00:05,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 15:00:05,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1121674720, now seen corresponding path program 2 times [2025-01-23 15:00:05,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 15:00:05,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230392786] [2025-01-23 15:00:05,750 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 15:00:05,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 15:00:05,798 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 62 statements into 2 equivalence classes. [2025-01-23 15:00:05,899 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 62 of 62 statements. [2025-01-23 15:00:05,900 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-23 15:00:05,900 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 15:00:07,479 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-01-23 15:00:07,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 15:00:07,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230392786] [2025-01-23 15:00:07,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230392786] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 15:00:07,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1373505288] [2025-01-23 15:00:07,480 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 15:00:07,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 15:00:07,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 15:00:07,483 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 15:00:07,486 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-23 15:00:07,588 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 62 statements into 2 equivalence classes. [2025-01-23 15:00:07,843 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 62 of 62 statements. [2025-01-23 15:00:07,843 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-23 15:00:07,843 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 15:00:07,848 INFO L256 TraceCheckSpWp]: Trace formula consists of 1913 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-01-23 15:00:07,856 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 15:00:07,876 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:07,916 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-01-23 15:00:07,917 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-23 15:00:07,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1373505288] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 15:00:07,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-23 15:00:07,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 9 [2025-01-23 15:00:07,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524866785] [2025-01-23 15:00:07,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 15:00:07,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-23 15:00:07,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 15:00:07,918 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-23 15:00:07,918 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-01-23 15:00:07,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 15:00:07,918 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 15:00:07,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 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) [2025-01-23 15:00:07,919 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 15:00:07,919 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 15:00:07,919 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 15:00:07,919 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-23 15:00:07,919 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 15:00:08,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 15:00:08,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 15:00:08,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 15:00:08,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-23 15:00:08,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 15:00:08,051 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-23 15:00:08,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 15:00:08,241 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 15:00:08,241 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 15:00:08,241 INFO L139 ounterexampleChecker]: Examining path program with hash -194447840, occurence #1 [2025-01-23 15:00:08,241 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 15:00:08,241 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 15:00:08,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 15:00:08,241 INFO L85 PathProgramCache]: Analyzing trace with hash -2134063181, now seen corresponding path program 1 times [2025-01-23 15:00:08,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 15:00:08,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299892988] [2025-01-23 15:00:08,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 15:00:08,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 15:00:08,356 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-01-23 15:00:08,399 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-01-23 15:00:08,399 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 15:00:08,399 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 15:00:09,129 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 15:00:09,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 15:00:09,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299892988] [2025-01-23 15:00:09,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299892988] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 15:00:09,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1837474790] [2025-01-23 15:00:09,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 15:00:09,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 15:00:09,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 15:00:09,132 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 15:00:09,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-23 15:00:09,232 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-01-23 15:00:09,452 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-01-23 15:00:09,452 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 15:00:09,453 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 15:00:09,459 INFO L256 TraceCheckSpWp]: Trace formula consists of 1856 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-01-23 15:00:09,465 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 15:00:09,483 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:09,605 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 15 [2025-01-23 15:00:09,634 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:09,663 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:09,709 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 15:00:09,709 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 15:00:10,210 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 1 [2025-01-23 15:00:10,218 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 5 [2025-01-23 15:00:10,285 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 15:00:10,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1837474790] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 15:00:10,285 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 15:00:10,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 20 [2025-01-23 15:00:10,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199824956] [2025-01-23 15:00:10,286 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 15:00:10,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-01-23 15:00:10,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 15:00:10,287 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-01-23 15:00:10,287 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=291, Unknown=0, NotChecked=0, Total=420 [2025-01-23 15:00:10,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 15:00:10,287 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 15:00:10,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 5.571428571428571) internal successors, (117), 20 states have internal predecessors, (117), 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) [2025-01-23 15:00:10,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 15:00:10,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 15:00:10,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 15:00:10,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-23 15:00:10,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 15:00:10,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 15:00:10,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 15:00:10,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 15:00:10,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 15:00:10,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-23 15:00:10,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 15:00:10,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-01-23 15:00:10,704 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-01-23 15:00:10,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 15:00:10,895 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 15:00:10,895 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 15:00:10,895 INFO L139 ounterexampleChecker]: Examining path program with hash -194447840, occurence #2 [2025-01-23 15:00:10,895 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-23 15:00:10,895 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2025-01-23 15:00:10,908 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 15:00:10,909 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-01-23 15:00:10,909 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 15:00:10,909 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2025-01-23 15:00:10,909 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:10,909 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2025-01-23 15:00:10,909 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:10,909 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2025-01-23 15:00:10,909 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:10,909 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2025-01-23 15:00:10,909 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:10,909 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 47 [2025-01-23 15:00:10,909 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:10,909 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 54 [2025-01-23 15:00:10,909 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:10,909 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 61 [2025-01-23 15:00:10,909 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:10,909 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 68 [2025-01-23 15:00:10,909 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:10,909 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 75 [2025-01-23 15:00:10,909 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:10,909 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-23 15:00:10,909 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 15:00:10,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 15:00:10,910 INFO L85 PathProgramCache]: Analyzing trace with hash 37810020, now seen corresponding path program 2 times [2025-01-23 15:00:10,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 15:00:10,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366690015] [2025-01-23 15:00:10,910 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 15:00:10,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 15:00:10,949 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 81 statements into 2 equivalence classes. [2025-01-23 15:00:11,019 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 81 of 81 statements. [2025-01-23 15:00:11,020 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-23 15:00:11,020 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 15:00:12,250 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 220 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 15:00:12,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 15:00:12,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366690015] [2025-01-23 15:00:12,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366690015] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 15:00:12,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1110962737] [2025-01-23 15:00:12,251 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 15:00:12,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 15:00:12,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 15:00:12,253 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 15:00:12,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-23 15:00:12,367 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 81 statements into 2 equivalence classes. [2025-01-23 15:00:12,678 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 81 of 81 statements. [2025-01-23 15:00:12,678 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-23 15:00:12,678 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 15:00:12,685 INFO L256 TraceCheckSpWp]: Trace formula consists of 2001 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-01-23 15:00:12,693 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 15:00:12,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:12,841 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 15 [2025-01-23 15:00:12,866 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:12,895 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:12,928 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:12,960 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:12,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:13,032 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:13,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:13,118 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 220 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 15:00:13,118 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 15:00:14,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2025-01-23 15:00:14,285 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 220 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 15:00:14,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1110962737] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 15:00:14,285 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 15:00:14,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 14] total 37 [2025-01-23 15:00:14,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095641043] [2025-01-23 15:00:14,286 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 15:00:14,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2025-01-23 15:00:14,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 15:00:14,287 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2025-01-23 15:00:14,292 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=468, Invalid=938, Unknown=0, NotChecked=0, Total=1406 [2025-01-23 15:00:14,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 15:00:14,292 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 15:00:14,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 5.921052631578948) internal successors, (225), 37 states have internal predecessors, (225), 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) [2025-01-23 15:00:14,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 15:00:14,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 15:00:14,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 15:00:14,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-23 15:00:14,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 15:00:14,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-01-23 15:00:14,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 15:00:15,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 15:00:15,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 15:00:15,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 15:00:15,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-23 15:00:15,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 15:00:15,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-01-23 15:00:15,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2025-01-23 15:00:15,158 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-01-23 15:00:15,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 15:00:15,362 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 15:00:15,364 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 15:00:15,364 INFO L139 ounterexampleChecker]: Examining path program with hash -194447840, occurence #3 [2025-01-23 15:00:15,364 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-23 15:00:15,364 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2025-01-23 15:00:15,364 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 15:00:15,364 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-01-23 15:00:15,364 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 15:00:15,364 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2025-01-23 15:00:15,365 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:15,365 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2025-01-23 15:00:15,365 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:15,365 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2025-01-23 15:00:15,365 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:15,365 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2025-01-23 15:00:15,365 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:15,365 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 47 [2025-01-23 15:00:15,365 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:15,365 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 54 [2025-01-23 15:00:15,365 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:15,365 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 61 [2025-01-23 15:00:15,365 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:15,366 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 68 [2025-01-23 15:00:15,366 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:15,366 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 75 [2025-01-23 15:00:15,366 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:15,366 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 82 [2025-01-23 15:00:15,366 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:15,366 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 89 [2025-01-23 15:00:15,366 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:15,366 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 96 [2025-01-23 15:00:15,366 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:15,366 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 103 [2025-01-23 15:00:15,367 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:15,367 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 110 [2025-01-23 15:00:15,367 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:15,367 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 117 [2025-01-23 15:00:15,367 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:15,367 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 124 [2025-01-23 15:00:15,367 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:15,367 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 131 [2025-01-23 15:00:15,367 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:15,367 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 138 [2025-01-23 15:00:15,367 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:15,368 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 145 [2025-01-23 15:00:15,368 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:15,368 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-23 15:00:15,368 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 15:00:15,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 15:00:15,368 INFO L85 PathProgramCache]: Analyzing trace with hash 563296516, now seen corresponding path program 3 times [2025-01-23 15:00:15,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 15:00:15,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679704659] [2025-01-23 15:00:15,369 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-23 15:00:15,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 15:00:15,415 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 151 statements into 19 equivalence classes. [2025-01-23 15:00:16,778 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) and asserted 151 of 151 statements. [2025-01-23 15:00:16,778 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2025-01-23 15:00:16,778 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 15:00:20,659 INFO L134 CoverageAnalysis]: Checked inductivity of 1125 backedges. 0 proven. 1125 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 15:00:20,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 15:00:20,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679704659] [2025-01-23 15:00:20,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679704659] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 15:00:20,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1146681338] [2025-01-23 15:00:20,659 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-23 15:00:20,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 15:00:20,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 15:00:20,661 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 15:00:20,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-01-23 15:00:20,824 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 151 statements into 19 equivalence classes. [2025-01-23 15:00:23,078 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) and asserted 151 of 151 statements. [2025-01-23 15:00:23,078 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2025-01-23 15:00:23,078 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 15:00:23,093 INFO L256 TraceCheckSpWp]: Trace formula consists of 2291 conjuncts, 28 conjuncts are in the unsatisfiable core [2025-01-23 15:00:23,107 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 15:00:23,119 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:23,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 15 [2025-01-23 15:00:23,227 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:23,253 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:23,278 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:23,301 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:23,323 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:23,347 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:23,373 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:23,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:23,425 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:23,454 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:23,492 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:23,528 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:23,566 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:23,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:23,638 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:23,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:23,705 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:23,755 INFO L134 CoverageAnalysis]: Checked inductivity of 1125 backedges. 0 proven. 1125 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 15:00:23,755 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 15:00:24,293 INFO L134 CoverageAnalysis]: Checked inductivity of 1125 backedges. 0 proven. 1125 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 15:00:24,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1146681338] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 15:00:24,293 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 15:00:24,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 23, 22] total 65 [2025-01-23 15:00:24,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612929481] [2025-01-23 15:00:24,293 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 15:00:24,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2025-01-23 15:00:24,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 15:00:24,297 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2025-01-23 15:00:24,298 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1316, Invalid=2974, Unknown=0, NotChecked=0, Total=4290 [2025-01-23 15:00:24,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 15:00:24,299 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 15:00:24,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.393939393939394) internal successors, (422), 65 states have internal predecessors, (422), 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) [2025-01-23 15:00:24,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 15:00:24,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 15:00:24,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 15:00:24,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-23 15:00:24,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 15:00:24,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-01-23 15:00:24,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2025-01-23 15:00:24,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 15:00:27,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 15:00:27,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 15:00:27,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 15:00:27,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-23 15:00:27,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 15:00:27,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-01-23 15:00:27,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2025-01-23 15:00:27,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2025-01-23 15:00:27,580 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-01-23 15:00:27,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 15:00:27,759 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 15:00:27,759 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 15:00:27,759 INFO L139 ounterexampleChecker]: Examining path program with hash -194447840, occurence #4 [2025-01-23 15:00:27,759 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-23 15:00:27,759 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2025-01-23 15:00:27,759 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 15:00:27,759 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-01-23 15:00:27,759 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 15:00:27,759 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2025-01-23 15:00:27,759 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:27,759 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2025-01-23 15:00:27,760 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:27,760 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2025-01-23 15:00:27,760 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:27,760 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2025-01-23 15:00:27,760 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:27,760 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 47 [2025-01-23 15:00:27,760 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:27,760 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 54 [2025-01-23 15:00:27,760 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:27,760 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 61 [2025-01-23 15:00:27,760 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:27,760 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 68 [2025-01-23 15:00:27,760 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:27,760 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 75 [2025-01-23 15:00:27,760 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:27,760 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 82 [2025-01-23 15:00:27,760 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:27,760 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 89 [2025-01-23 15:00:27,760 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:27,760 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 96 [2025-01-23 15:00:27,760 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:27,760 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 103 [2025-01-23 15:00:27,760 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:27,760 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 110 [2025-01-23 15:00:27,760 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:27,760 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 117 [2025-01-23 15:00:27,760 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:27,760 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 124 [2025-01-23 15:00:27,761 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:27,761 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 131 [2025-01-23 15:00:27,761 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:27,761 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 138 [2025-01-23 15:00:27,761 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:27,761 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 145 [2025-01-23 15:00:27,761 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:27,761 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 152 [2025-01-23 15:00:27,761 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:27,761 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 159 [2025-01-23 15:00:27,761 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:27,761 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 166 [2025-01-23 15:00:27,761 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:27,761 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 173 [2025-01-23 15:00:27,761 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:27,761 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 180 [2025-01-23 15:00:27,761 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:27,761 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 187 [2025-01-23 15:00:27,761 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:27,761 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 194 [2025-01-23 15:00:27,761 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:27,762 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 201 [2025-01-23 15:00:27,762 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:27,762 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 208 [2025-01-23 15:00:27,762 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:27,763 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 215 [2025-01-23 15:00:27,763 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:27,763 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 222 [2025-01-23 15:00:27,763 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:27,763 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 229 [2025-01-23 15:00:27,763 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:27,763 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 236 [2025-01-23 15:00:27,763 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:27,763 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 243 [2025-01-23 15:00:27,763 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:27,763 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 250 [2025-01-23 15:00:27,763 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:27,763 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 257 [2025-01-23 15:00:27,763 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:27,763 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 264 [2025-01-23 15:00:27,763 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:27,763 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 271 [2025-01-23 15:00:27,763 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:27,763 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 278 [2025-01-23 15:00:27,763 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:27,763 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 285 [2025-01-23 15:00:27,763 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:27,763 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-23 15:00:27,764 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 15:00:27,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 15:00:27,764 INFO L85 PathProgramCache]: Analyzing trace with hash 816424004, now seen corresponding path program 4 times [2025-01-23 15:00:27,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 15:00:27,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185929555] [2025-01-23 15:00:27,764 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-23 15:00:27,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 15:00:27,859 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 291 statements into 2 equivalence classes. [2025-01-23 15:00:28,266 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 291 of 291 statements. [2025-01-23 15:00:28,266 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-23 15:00:28,266 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 15:00:37,073 INFO L134 CoverageAnalysis]: Checked inductivity of 5035 backedges. 0 proven. 5035 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 15:00:37,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 15:00:37,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185929555] [2025-01-23 15:00:37,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185929555] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 15:00:37,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [92135733] [2025-01-23 15:00:37,074 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-23 15:00:37,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 15:00:37,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 15:00:37,075 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 15:00:37,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-01-23 15:00:37,310 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 291 statements into 2 equivalence classes. [2025-01-23 15:00:37,635 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 291 of 291 statements. [2025-01-23 15:00:37,635 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-23 15:00:37,635 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 15:00:37,648 INFO L256 TraceCheckSpWp]: Trace formula consists of 2871 conjuncts, 53 conjuncts are in the unsatisfiable core [2025-01-23 15:00:37,670 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 15:00:37,684 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:37,767 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 15 [2025-01-23 15:00:37,788 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:37,818 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:37,850 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:37,878 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:37,912 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:37,942 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:37,973 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:37,997 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:38,022 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:38,049 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:38,075 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:38,101 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:38,130 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:38,158 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:38,194 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:38,228 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:38,257 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:38,288 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:38,321 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:38,352 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:38,386 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:38,418 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:38,453 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:38,491 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:38,528 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:38,563 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:38,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:38,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:38,683 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:38,723 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:38,762 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:38,805 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:38,900 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:38,946 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:38,990 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:39,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:39,077 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 15:00:39,180 INFO L134 CoverageAnalysis]: Checked inductivity of 5035 backedges. 0 proven. 5035 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 15:00:39,180 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 15:00:41,024 INFO L134 CoverageAnalysis]: Checked inductivity of 5035 backedges. 0 proven. 5035 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 15:00:41,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [92135733] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 15:00:41,024 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 15:00:41,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 44, 43] total 136 [2025-01-23 15:00:41,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944659678] [2025-01-23 15:00:41,024 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 15:00:41,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 137 states [2025-01-23 15:00:41,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 15:00:41,028 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 137 interpolants. [2025-01-23 15:00:41,032 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5741, Invalid=12891, Unknown=0, NotChecked=0, Total=18632 [2025-01-23 15:00:41,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 15:00:41,032 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 15:00:41,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 137 states, 137 states have (on average 6.211678832116788) internal successors, (851), 136 states have internal predecessors, (851), 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) [2025-01-23 15:00:41,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 15:00:41,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 15:00:41,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 15:00:41,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-23 15:00:41,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 15:00:41,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-01-23 15:00:41,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2025-01-23 15:00:41,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2025-01-23 15:00:41,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 15:00:53,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 15:00:53,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 15:00:53,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 15:00:53,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-23 15:00:53,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 15:00:53,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-01-23 15:00:53,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2025-01-23 15:00:53,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2025-01-23 15:00:53,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 159 states. [2025-01-23 15:00:53,488 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-01-23 15:00:53,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 15:00:53,678 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 15:00:53,678 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 15:00:53,678 INFO L139 ounterexampleChecker]: Examining path program with hash -194447840, occurence #5 [2025-01-23 15:00:53,678 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-23 15:00:53,678 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2025-01-23 15:00:53,678 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 15:00:53,678 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-01-23 15:00:53,678 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 15:00:53,678 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2025-01-23 15:00:53,678 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,678 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2025-01-23 15:00:53,678 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,678 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2025-01-23 15:00:53,678 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,679 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2025-01-23 15:00:53,679 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,679 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 47 [2025-01-23 15:00:53,679 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,679 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 54 [2025-01-23 15:00:53,679 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,679 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 61 [2025-01-23 15:00:53,679 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,679 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 68 [2025-01-23 15:00:53,679 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,679 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 75 [2025-01-23 15:00:53,679 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,679 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 82 [2025-01-23 15:00:53,679 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,679 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 89 [2025-01-23 15:00:53,679 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,679 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 96 [2025-01-23 15:00:53,679 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,679 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 103 [2025-01-23 15:00:53,679 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,679 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 110 [2025-01-23 15:00:53,679 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,679 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 117 [2025-01-23 15:00:53,679 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,679 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 124 [2025-01-23 15:00:53,679 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,679 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 131 [2025-01-23 15:00:53,679 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,679 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 138 [2025-01-23 15:00:53,679 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,679 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 145 [2025-01-23 15:00:53,679 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,679 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 152 [2025-01-23 15:00:53,679 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,679 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 159 [2025-01-23 15:00:53,679 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,679 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 166 [2025-01-23 15:00:53,679 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,679 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 173 [2025-01-23 15:00:53,679 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,679 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 180 [2025-01-23 15:00:53,679 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,679 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 187 [2025-01-23 15:00:53,679 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,680 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 194 [2025-01-23 15:00:53,680 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,680 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 201 [2025-01-23 15:00:53,680 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,680 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 208 [2025-01-23 15:00:53,680 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,681 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 215 [2025-01-23 15:00:53,681 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,681 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 222 [2025-01-23 15:00:53,681 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,681 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 229 [2025-01-23 15:00:53,681 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,681 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 236 [2025-01-23 15:00:53,681 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,681 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 243 [2025-01-23 15:00:53,681 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,681 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 250 [2025-01-23 15:00:53,681 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,681 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 257 [2025-01-23 15:00:53,681 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,681 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 264 [2025-01-23 15:00:53,681 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,681 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 271 [2025-01-23 15:00:53,681 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,681 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 278 [2025-01-23 15:00:53,681 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,681 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 285 [2025-01-23 15:00:53,681 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,681 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 292 [2025-01-23 15:00:53,681 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,681 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 299 [2025-01-23 15:00:53,681 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,681 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 306 [2025-01-23 15:00:53,681 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,682 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 313 [2025-01-23 15:00:53,682 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,682 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 320 [2025-01-23 15:00:53,682 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,682 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 327 [2025-01-23 15:00:53,682 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,682 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 334 [2025-01-23 15:00:53,682 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,682 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 341 [2025-01-23 15:00:53,682 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,682 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 348 [2025-01-23 15:00:53,682 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,682 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 355 [2025-01-23 15:00:53,682 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,682 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 362 [2025-01-23 15:00:53,682 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,682 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 369 [2025-01-23 15:00:53,682 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,682 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 376 [2025-01-23 15:00:53,682 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,682 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 383 [2025-01-23 15:00:53,683 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,683 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 390 [2025-01-23 15:00:53,684 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,684 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 397 [2025-01-23 15:00:53,684 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,684 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 404 [2025-01-23 15:00:53,684 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,684 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 411 [2025-01-23 15:00:53,684 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,684 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 418 [2025-01-23 15:00:53,684 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,684 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 425 [2025-01-23 15:00:53,684 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,684 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 432 [2025-01-23 15:00:53,684 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,685 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 439 [2025-01-23 15:00:53,685 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,685 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 446 [2025-01-23 15:00:53,685 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,685 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 453 [2025-01-23 15:00:53,685 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,685 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 460 [2025-01-23 15:00:53,685 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,685 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 467 [2025-01-23 15:00:53,685 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,685 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 474 [2025-01-23 15:00:53,685 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,685 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 481 [2025-01-23 15:00:53,685 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,685 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 488 [2025-01-23 15:00:53,685 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,685 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 495 [2025-01-23 15:00:53,685 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,685 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 502 [2025-01-23 15:00:53,685 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,685 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 509 [2025-01-23 15:00:53,685 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,685 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 516 [2025-01-23 15:00:53,685 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,685 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 523 [2025-01-23 15:00:53,686 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,686 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 530 [2025-01-23 15:00:53,686 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,686 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 537 [2025-01-23 15:00:53,686 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,686 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 544 [2025-01-23 15:00:53,686 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,686 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 551 [2025-01-23 15:00:53,686 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,686 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 558 [2025-01-23 15:00:53,686 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,686 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 565 [2025-01-23 15:00:53,686 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 15:00:53,686 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-23 15:00:53,686 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 15:00:53,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 15:00:53,687 INFO L85 PathProgramCache]: Analyzing trace with hash 2092292804, now seen corresponding path program 5 times [2025-01-23 15:00:53,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 15:00:53,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194829948] [2025-01-23 15:00:53,687 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-23 15:00:53,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 15:00:53,791 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 571 statements into 79 equivalence classes. [2025-01-23 15:00:58,578 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 79 check-sat command(s) and asserted 571 of 571 statements. [2025-01-23 15:00:58,578 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 79 check-sat command(s) [2025-01-23 15:00:58,578 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 15:01:28,877 INFO L134 CoverageAnalysis]: Checked inductivity of 21255 backedges. 0 proven. 21255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 15:01:28,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 15:01:28,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194829948] [2025-01-23 15:01:28,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194829948] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 15:01:28,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [992206843] [2025-01-23 15:01:28,877 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-23 15:01:28,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 15:01:28,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 15:01:28,879 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 15:01:28,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-01-23 15:01:29,253 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 571 statements into 79 equivalence classes. Killed by 15