./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 NECESSARY_AND_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 NECESSARY_AND_SUFFICIENT --- Real Ultimate output --- This is Ultimate 0.3.0-dev-ebd4107-m [2025-01-23 22:24:56,344 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-23 22:24:56,433 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-01-23 22:24:56,439 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-23 22:24:56,441 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-23 22:24:56,471 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-23 22:24:56,472 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-23 22:24:56,472 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-23 22:24:56,472 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-23 22:24:56,472 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-23 22:24:56,473 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-23 22:24:56,473 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-23 22:24:56,473 INFO L153 SettingsManager]: * Use SBE=true [2025-01-23 22:24:56,473 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-23 22:24:56,473 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-23 22:24:56,474 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-23 22:24:56,475 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-23 22:24:56,475 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-23 22:24:56,475 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-23 22:24:56,475 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-23 22:24:56,475 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-23 22:24:56,475 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-23 22:24:56,475 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-23 22:24:56,475 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-23 22:24:56,475 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-23 22:24:56,475 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-23 22:24:56,475 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-23 22:24:56,476 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-23 22:24:56,476 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-23 22:24:56,476 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-23 22:24:56,476 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-23 22:24:56,476 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-23 22:24:56,477 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-23 22:24:56,477 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-23 22:24:56,477 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-01-23 22:24:56,477 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-23 22:24:56,477 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-23 22:24:56,477 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-01-23 22:24:56,477 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-23 22:24:56,478 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-23 22:24:56,478 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-01-23 22:24:56,478 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-01-23 22:24:56,478 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-01-23 22:24:56,478 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 -> NECESSARY_AND_SUFFICIENT [2025-01-23 22:24:56,744 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-23 22:24:56,750 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-23 22:24:56,753 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-23 22:24:56,755 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-23 22:24:56,755 INFO L274 PluginConnector]: CDTParser initialized [2025-01-23 22:24:56,756 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread/stack_longest-1.i [2025-01-23 22:24:58,020 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/74a67ef18/bdaa73fdf6514254bfc91406fee2c795/FLAG67d47169e [2025-01-23 22:24:58,312 INFO L384 CDTParser]: Found 1 translation units. [2025-01-23 22:24:58,313 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread/stack_longest-1.i [2025-01-23 22:24:58,330 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/74a67ef18/bdaa73fdf6514254bfc91406fee2c795/FLAG67d47169e [2025-01-23 22:24:58,577 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/74a67ef18/bdaa73fdf6514254bfc91406fee2c795 [2025-01-23 22:24:58,579 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-23 22:24:58,580 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-23 22:24:58,581 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-23 22:24:58,581 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-23 22:24:58,584 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-23 22:24:58,584 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 10:24:58" (1/1) ... [2025-01-23 22:24:58,585 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c6e1474 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:24:58, skipping insertion in model container [2025-01-23 22:24:58,585 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 10:24:58" (1/1) ... [2025-01-23 22:24:58,621 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-23 22:24:58,867 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 22:24:58,889 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-23 22:24:58,927 INFO L200 MainTranslator]: Completed pre-run [2025-01-23 22:24:59,049 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 22:24:59,064 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-23 22:24:59,181 INFO L204 MainTranslator]: Completed translation [2025-01-23 22:24:59,183 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:24:59 WrapperNode [2025-01-23 22:24:59,183 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-23 22:24:59,184 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-23 22:24:59,186 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-23 22:24:59,186 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-23 22:24:59,191 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:24:59" (1/1) ... [2025-01-23 22:24:59,230 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:24:59" (1/1) ... [2025-01-23 22:24:59,302 INFO L138 Inliner]: procedures = 277, calls = 831, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 946 [2025-01-23 22:24:59,302 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-23 22:24:59,302 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-23 22:24:59,304 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-23 22:24:59,304 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-23 22:24:59,310 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:24:59" (1/1) ... [2025-01-23 22:24:59,311 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:24:59" (1/1) ... [2025-01-23 22:24:59,327 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:24:59" (1/1) ... [2025-01-23 22:24:59,327 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:24:59" (1/1) ... [2025-01-23 22:24:59,371 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:24:59" (1/1) ... [2025-01-23 22:24:59,373 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:24:59" (1/1) ... [2025-01-23 22:24:59,378 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:24:59" (1/1) ... [2025-01-23 22:24:59,384 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:24:59" (1/1) ... [2025-01-23 22:24:59,386 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:24:59" (1/1) ... [2025-01-23 22:24:59,421 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-23 22:24:59,422 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-23 22:24:59,425 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-23 22:24:59,425 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-23 22:24:59,426 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:24:59" (1/1) ... [2025-01-23 22:24:59,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-23 22:24:59,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 22:24:59,455 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 22:24:59,461 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 22:24:59,478 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2025-01-23 22:24:59,478 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2025-01-23 22:24:59,478 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2025-01-23 22:24:59,478 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2025-01-23 22:24:59,478 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-01-23 22:24:59,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-01-23 22:24:59,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-01-23 22:24:59,479 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-01-23 22:24:59,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-23 22:24:59,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-01-23 22:24:59,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-23 22:24:59,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-23 22:24:59,481 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 22:24:59,610 INFO L234 CfgBuilder]: Building ICFG [2025-01-23 22:24:59,611 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-23 22:25:00,706 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-23 22:25:00,707 INFO L283 CfgBuilder]: Performing block encoding [2025-01-23 22:25:10,561 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-23 22:25:10,561 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-23 22:25:10,561 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 10:25:10 BoogieIcfgContainer [2025-01-23 22:25:10,561 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-23 22:25:10,564 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-23 22:25:10,564 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-23 22:25:10,569 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-23 22:25:10,569 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.01 10:24:58" (1/3) ... [2025-01-23 22:25:10,569 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c4d7214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.01 10:25:10, skipping insertion in model container [2025-01-23 22:25:10,570 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:24:59" (2/3) ... [2025-01-23 22:25:10,570 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c4d7214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.01 10:25:10, skipping insertion in model container [2025-01-23 22:25:10,570 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 10:25:10" (3/3) ... [2025-01-23 22:25:10,571 INFO L128 eAbstractionObserver]: Analyzing ICFG stack_longest-1.i [2025-01-23 22:25:10,585 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-23 22:25:10,587 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 22:25:10,587 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-23 22:25:10,654 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-01-23 22:25:10,694 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 22:25:10,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-01-23 22:25:10,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 22:25:10,698 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 22:25:10,699 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 22:25:10,783 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-23 22:25:10,798 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t1Thread1of1ForFork1 ======== [2025-01-23 22:25:10,805 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;@6aed0439, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 22:25:10,806 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-23 22:25:11,470 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 22:25:11,471 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 22:25:11,472 INFO L139 ounterexampleChecker]: Examining path program with hash -2108946939, occurence #1 [2025-01-23 22:25:11,472 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 22:25:11,472 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 22:25:11,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 22:25:11,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1757756655, now seen corresponding path program 1 times [2025-01-23 22:25:11,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 22:25:11,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16845069] [2025-01-23 22:25:11,482 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 22:25:11,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 22:25:11,582 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-23 22:25:11,765 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-23 22:25:11,765 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 22:25:11,765 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 22:25:12,360 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 22:25:12,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 22:25:12,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16845069] [2025-01-23 22:25:12,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16845069] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 22:25:12,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 22:25:12,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-23 22:25:12,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944902131] [2025-01-23 22:25:12,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 22:25:12,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-23 22:25:12,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 22:25:12,382 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-23 22:25:12,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-23 22:25:12,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 22:25:12,384 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 22:25:12,386 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 22:25:12,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 22:25:12,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 22:25:12,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-23 22:25:12,874 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 22:25:12,874 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 22:25:12,874 INFO L139 ounterexampleChecker]: Examining path program with hash 1099872589, occurence #1 [2025-01-23 22:25:12,874 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 22:25:12,874 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 22:25:12,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 22:25:12,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1554935456, now seen corresponding path program 1 times [2025-01-23 22:25:12,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 22:25:12,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322691947] [2025-01-23 22:25:12,875 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 22:25:12,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 22:25:12,908 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-01-23 22:25:12,953 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-01-23 22:25:12,953 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 22:25:12,953 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 22:25:13,199 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 22:25:13,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 22:25:13,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322691947] [2025-01-23 22:25:13,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322691947] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 22:25:13,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 22:25:13,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-23 22:25:13,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61655958] [2025-01-23 22:25:13,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 22:25:13,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-23 22:25:13,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 22:25:13,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-23 22:25:13,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-23 22:25:13,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 22:25:13,203 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 22:25:13,203 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 22:25:13,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 22:25:13,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 22:25:13,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 22:25:13,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:25:13,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-23 22:25:13,290 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 22:25:13,290 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 22:25:13,290 INFO L139 ounterexampleChecker]: Examining path program with hash -691886530, occurence #1 [2025-01-23 22:25:13,290 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 22:25:13,291 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 22:25:13,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 22:25:13,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1104007711, now seen corresponding path program 1 times [2025-01-23 22:25:13,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 22:25:13,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271775049] [2025-01-23 22:25:13,292 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 22:25:13,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 22:25:13,325 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-01-23 22:25:13,355 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-01-23 22:25:13,355 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 22:25:13,355 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 22:25:13,660 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 22:25:13,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 22:25:13,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271775049] [2025-01-23 22:25:13,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271775049] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 22:25:13,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 22:25:13,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-23 22:25:13,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072625641] [2025-01-23 22:25:13,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 22:25:13,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-23 22:25:13,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 22:25:13,662 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-23 22:25:13,662 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-23 22:25:13,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 22:25:13,663 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 22:25:13,663 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 22:25:13,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 22:25:13,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:25:13,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 22:25:13,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 22:25:13,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:25:13,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:25:13,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-23 22:25:13,747 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 22:25:13,747 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 22:25:13,747 INFO L139 ounterexampleChecker]: Examining path program with hash 112247985, occurence #1 [2025-01-23 22:25:13,747 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 22:25:13,747 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 22:25:13,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 22:25:13,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1343367421, now seen corresponding path program 1 times [2025-01-23 22:25:13,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 22:25:13,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203385151] [2025-01-23 22:25:13,748 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 22:25:13,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 22:25:13,779 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-01-23 22:25:13,808 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-01-23 22:25:13,809 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 22:25:13,809 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 22:25:14,270 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 22:25:14,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 22:25:14,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203385151] [2025-01-23 22:25:14,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203385151] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 22:25:14,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1148058095] [2025-01-23 22:25:14,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 22:25:14,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 22:25:14,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 22:25:14,283 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 22:25:14,285 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 22:25:14,376 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-01-23 22:25:14,644 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-01-23 22:25:14,644 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 22:25:14,644 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 22:25:14,651 INFO L256 TraceCheckSpWp]: Trace formula consists of 1771 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-23 22:25:14,660 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 22:25:14,703 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 22:25:14,908 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 22:25:14,908 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 22:25:14,973 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 22:25:14,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1148058095] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 22:25:14,973 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 22:25:14,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2025-01-23 22:25:14,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554917058] [2025-01-23 22:25:14,974 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 22:25:14,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-01-23 22:25:14,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 22:25:14,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-01-23 22:25:14,975 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2025-01-23 22:25:14,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 22:25:14,975 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 22:25:14,975 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 22:25:14,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 22:25:14,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:25:14,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:25:14,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 22:25:15,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 22:25:15,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:25:15,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:25:15,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-23 22:25:15,270 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-23 22:25:15,463 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 22:25:15,463 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 22:25:15,463 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 22:25:15,463 INFO L139 ounterexampleChecker]: Examining path program with hash 734054636, occurence #1 [2025-01-23 22:25:15,463 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 22:25:15,463 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 22:25:15,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 22:25:15,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1121674720, now seen corresponding path program 2 times [2025-01-23 22:25:15,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 22:25:15,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29598810] [2025-01-23 22:25:15,464 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 22:25:15,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 22:25:15,509 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 62 statements into 2 equivalence classes. [2025-01-23 22:25:15,604 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 62 of 62 statements. [2025-01-23 22:25:15,605 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-23 22:25:15,605 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 22:25:17,245 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 22:25:17,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 22:25:17,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29598810] [2025-01-23 22:25:17,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29598810] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 22:25:17,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [459845726] [2025-01-23 22:25:17,246 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 22:25:17,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 22:25:17,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 22:25:17,248 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 22:25:17,251 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 22:25:17,360 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 62 statements into 2 equivalence classes. [2025-01-23 22:25:17,635 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 62 of 62 statements. [2025-01-23 22:25:17,635 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-23 22:25:17,635 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 22:25:17,643 INFO L256 TraceCheckSpWp]: Trace formula consists of 1913 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-01-23 22:25:17,653 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 22:25:17,673 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 22:25:17,708 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 22:25:17,709 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-23 22:25:17,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [459845726] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 22:25:17,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-23 22:25:17,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 9 [2025-01-23 22:25:17,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563172865] [2025-01-23 22:25:17,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 22:25:17,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-23 22:25:17,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 22:25:17,711 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-23 22:25:17,711 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-01-23 22:25:17,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 22:25:17,712 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 22:25:17,713 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 22:25:17,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 22:25:17,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:25:17,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:25:17,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-23 22:25:17,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 22:25:17,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 22:25:17,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:25:17,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:25:17,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-23 22:25:17,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 22:25:17,837 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-01-23 22:25:18,030 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 22:25:18,031 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 22:25:18,031 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 22:25:18,031 INFO L139 ounterexampleChecker]: Examining path program with hash -194447840, occurence #1 [2025-01-23 22:25:18,031 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 22:25:18,031 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 22:25:18,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 22:25:18,031 INFO L85 PathProgramCache]: Analyzing trace with hash -2134063181, now seen corresponding path program 1 times [2025-01-23 22:25:18,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 22:25:18,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329443986] [2025-01-23 22:25:18,031 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 22:25:18,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 22:25:18,067 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-01-23 22:25:18,108 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-01-23 22:25:18,111 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 22:25:18,111 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 22:25:18,880 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 22:25:18,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 22:25:18,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329443986] [2025-01-23 22:25:18,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329443986] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 22:25:18,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1472224712] [2025-01-23 22:25:18,881 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 22:25:18,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 22:25:18,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 22:25:18,883 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 22:25:18,885 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 22:25:18,989 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-01-23 22:25:19,223 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-01-23 22:25:19,223 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 22:25:19,223 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 22:25:19,228 INFO L256 TraceCheckSpWp]: Trace formula consists of 1856 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-01-23 22:25:19,233 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 22:25:19,249 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 22:25:19,370 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 22:25:19,401 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 22:25:19,432 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 22:25:19,478 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 22:25:19,478 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 22:25:19,972 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 22:25:19,980 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 22:25:20,034 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 22:25:20,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1472224712] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 22:25:20,034 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 22:25:20,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 20 [2025-01-23 22:25:20,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591635015] [2025-01-23 22:25:20,035 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 22:25:20,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-01-23 22:25:20,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 22:25:20,036 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-01-23 22:25:20,036 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=291, Unknown=0, NotChecked=0, Total=420 [2025-01-23 22:25:20,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 22:25:20,036 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 22:25:20,036 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 22:25:20,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 22:25:20,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:25:20,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:25:20,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-23 22:25:20,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 22:25:20,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 22:25:20,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 22:25:20,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:25:20,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:25:20,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-23 22:25:20,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 22:25:20,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-01-23 22:25:20,456 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 22:25:20,646 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 22:25:20,646 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 22:25:20,646 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 22:25:20,646 INFO L139 ounterexampleChecker]: Examining path program with hash -194447840, occurence #2 [2025-01-23 22:25:20,646 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-23 22:25:20,647 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2025-01-23 22:25:20,657 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 22:25:20,657 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-01-23 22:25:20,657 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 22:25:20,657 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2025-01-23 22:25:20,657 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:20,657 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2025-01-23 22:25:20,657 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:20,657 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2025-01-23 22:25:20,657 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:20,657 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2025-01-23 22:25:20,657 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:20,657 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 47 [2025-01-23 22:25:20,658 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:20,658 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 54 [2025-01-23 22:25:20,658 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:20,658 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 61 [2025-01-23 22:25:20,658 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:20,658 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 68 [2025-01-23 22:25:20,658 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:20,658 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 75 [2025-01-23 22:25:20,658 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:20,658 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-23 22:25:20,658 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 22:25:20,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 22:25:20,658 INFO L85 PathProgramCache]: Analyzing trace with hash 37810020, now seen corresponding path program 2 times [2025-01-23 22:25:20,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 22:25:20,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528305710] [2025-01-23 22:25:20,658 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 22:25:20,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 22:25:20,694 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 81 statements into 2 equivalence classes. [2025-01-23 22:25:20,783 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 81 of 81 statements. [2025-01-23 22:25:20,783 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-23 22:25:20,784 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 22:25:22,095 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 22:25:22,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 22:25:22,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528305710] [2025-01-23 22:25:22,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528305710] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 22:25:22,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1995904408] [2025-01-23 22:25:22,096 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 22:25:22,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 22:25:22,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 22:25:22,100 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 22:25:22,102 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 22:25:22,225 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 81 statements into 2 equivalence classes. [2025-01-23 22:25:22,543 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 81 of 81 statements. [2025-01-23 22:25:22,544 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-23 22:25:22,544 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 22:25:22,555 INFO L256 TraceCheckSpWp]: Trace formula consists of 2001 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-01-23 22:25:22,565 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 22:25:22,587 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 22:25:22,694 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 22:25:22,719 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 22:25:22,748 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 22:25:22,781 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 22:25:22,813 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 22:25:22,847 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 22:25:22,882 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 22:25:22,919 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 22:25:22,969 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 22:25:22,969 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 22:25:24,079 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 22:25:24,210 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 22:25:24,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1995904408] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 22:25:24,210 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 22:25:24,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 14] total 37 [2025-01-23 22:25:24,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24812719] [2025-01-23 22:25:24,210 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 22:25:24,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2025-01-23 22:25:24,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 22:25:24,212 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2025-01-23 22:25:24,213 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=468, Invalid=938, Unknown=0, NotChecked=0, Total=1406 [2025-01-23 22:25:24,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 22:25:24,213 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 22:25:24,213 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 22:25:24,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 22:25:24,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:25:24,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:25:24,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-23 22:25:24,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 22:25:24,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-01-23 22:25:24,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 22:25:25,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 22:25:25,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:25:25,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:25:25,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-23 22:25:25,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 22:25:25,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-01-23 22:25:25,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2025-01-23 22:25:25,120 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 22:25:25,315 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 22:25:25,315 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 22:25:25,315 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 22:25:25,315 INFO L139 ounterexampleChecker]: Examining path program with hash -194447840, occurence #3 [2025-01-23 22:25:25,315 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-23 22:25:25,315 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2025-01-23 22:25:25,315 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 22:25:25,316 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-01-23 22:25:25,316 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 22:25:25,316 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2025-01-23 22:25:25,316 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:25,316 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2025-01-23 22:25:25,316 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:25,316 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2025-01-23 22:25:25,316 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:25,316 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2025-01-23 22:25:25,316 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:25,316 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 47 [2025-01-23 22:25:25,316 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:25,316 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 54 [2025-01-23 22:25:25,316 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:25,316 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 61 [2025-01-23 22:25:25,316 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:25,316 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 68 [2025-01-23 22:25:25,316 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:25,316 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 75 [2025-01-23 22:25:25,316 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:25,316 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 82 [2025-01-23 22:25:25,316 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:25,316 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 89 [2025-01-23 22:25:25,316 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:25,316 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 96 [2025-01-23 22:25:25,316 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:25,316 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 103 [2025-01-23 22:25:25,317 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:25,317 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 110 [2025-01-23 22:25:25,317 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:25,317 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 117 [2025-01-23 22:25:25,317 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:25,317 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 124 [2025-01-23 22:25:25,317 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:25,317 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 131 [2025-01-23 22:25:25,317 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:25,317 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 138 [2025-01-23 22:25:25,317 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:25,317 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 145 [2025-01-23 22:25:25,317 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:25,317 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-23 22:25:25,317 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 22:25:25,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 22:25:25,318 INFO L85 PathProgramCache]: Analyzing trace with hash 563296516, now seen corresponding path program 3 times [2025-01-23 22:25:25,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 22:25:25,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876753306] [2025-01-23 22:25:25,318 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-23 22:25:25,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 22:25:25,386 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 151 statements into 19 equivalence classes. [2025-01-23 22:25:26,851 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) and asserted 151 of 151 statements. [2025-01-23 22:25:26,851 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2025-01-23 22:25:26,851 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 22:25:30,952 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 22:25:30,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 22:25:30,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876753306] [2025-01-23 22:25:30,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876753306] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 22:25:30,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [812823137] [2025-01-23 22:25:30,953 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-23 22:25:30,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 22:25:30,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 22:25:30,954 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 22:25:30,956 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 22:25:31,102 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 151 statements into 19 equivalence classes. [2025-01-23 22:25:33,397 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) and asserted 151 of 151 statements. [2025-01-23 22:25:33,397 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2025-01-23 22:25:33,397 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 22:25:33,411 INFO L256 TraceCheckSpWp]: Trace formula consists of 2291 conjuncts, 28 conjuncts are in the unsatisfiable core [2025-01-23 22:25:33,424 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 22:25:33,437 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 22:25:33,525 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 22:25:33,549 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 22:25:33,578 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 22:25:33,607 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 22:25:33,632 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 22:25:33,653 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 22:25:33,678 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 22:25:33,703 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 22:25:33,729 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 22:25:33,769 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 22:25:33,805 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 22:25:33,840 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 22:25:33,867 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 22:25:33,897 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 22:25:33,930 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 22:25:33,960 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 22:25:34,089 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 22:25:34,132 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 22:25:34,220 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 22:25:34,220 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 22:25:35,284 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 22:25:35,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [812823137] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 22:25:35,284 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 22:25:35,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 23, 22] total 65 [2025-01-23 22:25:35,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013493036] [2025-01-23 22:25:35,285 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 22:25:35,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2025-01-23 22:25:35,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 22:25:35,289 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2025-01-23 22:25:35,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1316, Invalid=2974, Unknown=0, NotChecked=0, Total=4290 [2025-01-23 22:25:35,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 22:25:35,295 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 22:25:35,300 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 22:25:35,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 22:25:35,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:25:35,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:25:35,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-23 22:25:35,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 22:25:35,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-01-23 22:25:35,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2025-01-23 22:25:35,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 22:25:38,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 22:25:38,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:25:38,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:25:38,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-23 22:25:38,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 22:25:38,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-01-23 22:25:38,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2025-01-23 22:25:38,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2025-01-23 22:25:38,613 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 22:25:38,791 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 22:25:38,791 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 22:25:38,791 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 22:25:38,792 INFO L139 ounterexampleChecker]: Examining path program with hash -194447840, occurence #4 [2025-01-23 22:25:38,792 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-23 22:25:38,792 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2025-01-23 22:25:38,792 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 22:25:38,792 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-01-23 22:25:38,792 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 22:25:38,792 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2025-01-23 22:25:38,792 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:38,792 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2025-01-23 22:25:38,792 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:38,792 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2025-01-23 22:25:38,792 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:38,792 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2025-01-23 22:25:38,792 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:38,792 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 47 [2025-01-23 22:25:38,792 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:38,792 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 54 [2025-01-23 22:25:38,792 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:38,793 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 61 [2025-01-23 22:25:38,793 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:38,793 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 68 [2025-01-23 22:25:38,793 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:38,793 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 75 [2025-01-23 22:25:38,793 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:38,793 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 82 [2025-01-23 22:25:38,793 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:38,793 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 89 [2025-01-23 22:25:38,793 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:38,793 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 96 [2025-01-23 22:25:38,793 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:38,793 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 103 [2025-01-23 22:25:38,793 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:38,793 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 110 [2025-01-23 22:25:38,793 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:38,793 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 117 [2025-01-23 22:25:38,793 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:38,793 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 124 [2025-01-23 22:25:38,793 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:38,793 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 131 [2025-01-23 22:25:38,793 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:38,793 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 138 [2025-01-23 22:25:38,793 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:38,793 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 145 [2025-01-23 22:25:38,793 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:38,793 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 152 [2025-01-23 22:25:38,793 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:38,793 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 159 [2025-01-23 22:25:38,793 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:38,794 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 166 [2025-01-23 22:25:38,794 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:38,794 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 173 [2025-01-23 22:25:38,794 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:38,794 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 180 [2025-01-23 22:25:38,794 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:38,794 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 187 [2025-01-23 22:25:38,794 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:38,794 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 194 [2025-01-23 22:25:38,794 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:38,794 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 201 [2025-01-23 22:25:38,794 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:38,794 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 208 [2025-01-23 22:25:38,794 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:38,794 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 215 [2025-01-23 22:25:38,794 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:38,794 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 222 [2025-01-23 22:25:38,794 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:38,794 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 229 [2025-01-23 22:25:38,794 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:38,794 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 236 [2025-01-23 22:25:38,794 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:38,794 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 243 [2025-01-23 22:25:38,794 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:38,794 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 250 [2025-01-23 22:25:38,796 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:38,796 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 257 [2025-01-23 22:25:38,796 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:38,796 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 264 [2025-01-23 22:25:38,796 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:38,796 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 271 [2025-01-23 22:25:38,796 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:38,796 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 278 [2025-01-23 22:25:38,796 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:38,796 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 285 [2025-01-23 22:25:38,796 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:25:38,796 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-23 22:25:38,796 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 22:25:38,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 22:25:38,797 INFO L85 PathProgramCache]: Analyzing trace with hash 816424004, now seen corresponding path program 4 times [2025-01-23 22:25:38,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 22:25:38,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769506630] [2025-01-23 22:25:38,797 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-23 22:25:38,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 22:25:38,872 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 291 statements into 2 equivalence classes. [2025-01-23 22:25:39,199 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 22:25:39,200 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-23 22:25:39,200 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 22:25:49,237 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 22:25:49,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 22:25:49,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769506630] [2025-01-23 22:25:49,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769506630] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 22:25:49,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376399592] [2025-01-23 22:25:49,238 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-23 22:25:49,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 22:25:49,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 22:25:49,240 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 22:25:49,241 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 22:25:49,477 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 291 statements into 2 equivalence classes. [2025-01-23 22:25:49,804 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 22:25:49,805 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-23 22:25:49,805 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 22:25:49,815 INFO L256 TraceCheckSpWp]: Trace formula consists of 2871 conjuncts, 53 conjuncts are in the unsatisfiable core [2025-01-23 22:25:49,838 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 22:25:49,853 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 22:25:49,946 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 22:25:49,965 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 22:25:49,998 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 22:25:50,030 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 22:25:50,059 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 22:25:50,092 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 22:25:50,123 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 22:25:50,157 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 22:25:50,189 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 22:25:50,214 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 22:25:50,240 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 22:25:50,267 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 22:25:50,293 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 22:25:50,323 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 22:25:50,351 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 22:25:50,382 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 22:25:50,419 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 22:25:50,449 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 22:25:50,480 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 22:25:50,513 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 22:25:50,544 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 22:25:50,581 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 22:25:50,623 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 22:25:50,659 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 22:25:50,696 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 22:25:50,733 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 22:25:50,768 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 22:25:50,804 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 22:25:50,845 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 22:25:50,883 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 22:25:50,923 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 22:25:50,962 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 22:25:51,002 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 22:25:51,074 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 22:25:51,116 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 22:25:51,161 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 22:25:51,204 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 22:25:51,249 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 22:25:51,351 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 22:25:51,351 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 22:25:53,201 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 22:25:53,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376399592] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 22:25:53,201 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 22:25:53,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 44, 43] total 136 [2025-01-23 22:25:53,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302341253] [2025-01-23 22:25:53,201 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 22:25:53,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 137 states [2025-01-23 22:25:53,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 22:25:53,206 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 137 interpolants. [2025-01-23 22:25:53,211 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5741, Invalid=12891, Unknown=0, NotChecked=0, Total=18632 [2025-01-23 22:25:53,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 22:25:53,211 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 22:25:53,211 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 22:25:53,211 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 22:25:53,211 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:25:53,211 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:25:53,211 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-23 22:25:53,211 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 22:25:53,211 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-01-23 22:25:53,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2025-01-23 22:25:53,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2025-01-23 22:25:53,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 22:26:05,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 22:26:05,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:26:05,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:26:05,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-23 22:26:05,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 22:26:05,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-01-23 22:26:05,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2025-01-23 22:26:05,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2025-01-23 22:26:05,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 159 states. [2025-01-23 22:26:05,708 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 22:26:05,898 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 22:26:05,898 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 22:26:05,898 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 22:26:05,898 INFO L139 ounterexampleChecker]: Examining path program with hash -194447840, occurence #5 [2025-01-23 22:26:05,898 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-23 22:26:05,899 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2025-01-23 22:26:05,899 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 22:26:05,899 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-01-23 22:26:05,899 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 22:26:05,899 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2025-01-23 22:26:05,899 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,899 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2025-01-23 22:26:05,899 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,899 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2025-01-23 22:26:05,899 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,899 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2025-01-23 22:26:05,899 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,899 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 47 [2025-01-23 22:26:05,899 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,899 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 54 [2025-01-23 22:26:05,899 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,899 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 61 [2025-01-23 22:26:05,899 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,899 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 68 [2025-01-23 22:26:05,899 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,899 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 75 [2025-01-23 22:26:05,899 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,899 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 82 [2025-01-23 22:26:05,899 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,899 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 89 [2025-01-23 22:26:05,899 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,899 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 96 [2025-01-23 22:26:05,899 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,899 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 103 [2025-01-23 22:26:05,899 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,900 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 110 [2025-01-23 22:26:05,900 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,900 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 117 [2025-01-23 22:26:05,900 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,900 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 124 [2025-01-23 22:26:05,900 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,900 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 131 [2025-01-23 22:26:05,900 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,900 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 138 [2025-01-23 22:26:05,900 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,900 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 145 [2025-01-23 22:26:05,900 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,900 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 152 [2025-01-23 22:26:05,900 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,900 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 159 [2025-01-23 22:26:05,900 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,900 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 166 [2025-01-23 22:26:05,900 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,900 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 173 [2025-01-23 22:26:05,900 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,900 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 180 [2025-01-23 22:26:05,900 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,900 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 187 [2025-01-23 22:26:05,900 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,900 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 194 [2025-01-23 22:26:05,900 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,900 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 201 [2025-01-23 22:26:05,900 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,900 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 208 [2025-01-23 22:26:05,900 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,900 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 215 [2025-01-23 22:26:05,900 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,900 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 222 [2025-01-23 22:26:05,900 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,900 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 229 [2025-01-23 22:26:05,901 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,901 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 236 [2025-01-23 22:26:05,901 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,901 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 243 [2025-01-23 22:26:05,901 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,901 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 250 [2025-01-23 22:26:05,901 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,901 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 257 [2025-01-23 22:26:05,901 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,901 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 264 [2025-01-23 22:26:05,901 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,901 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 271 [2025-01-23 22:26:05,901 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,901 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 278 [2025-01-23 22:26:05,901 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,901 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 285 [2025-01-23 22:26:05,901 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,901 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 292 [2025-01-23 22:26:05,901 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,901 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 299 [2025-01-23 22:26:05,901 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,901 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 306 [2025-01-23 22:26:05,901 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,901 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 313 [2025-01-23 22:26:05,901 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,901 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 320 [2025-01-23 22:26:05,901 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,901 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 327 [2025-01-23 22:26:05,901 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,901 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 334 [2025-01-23 22:26:05,901 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,902 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 341 [2025-01-23 22:26:05,902 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,902 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 348 [2025-01-23 22:26:05,902 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,902 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 355 [2025-01-23 22:26:05,902 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,902 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 362 [2025-01-23 22:26:05,902 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,902 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 369 [2025-01-23 22:26:05,902 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,902 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 376 [2025-01-23 22:26:05,902 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,902 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 383 [2025-01-23 22:26:05,902 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,902 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 390 [2025-01-23 22:26:05,902 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,902 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 397 [2025-01-23 22:26:05,902 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,902 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 404 [2025-01-23 22:26:05,902 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,902 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 411 [2025-01-23 22:26:05,902 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,902 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 418 [2025-01-23 22:26:05,902 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,902 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 425 [2025-01-23 22:26:05,902 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,902 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 432 [2025-01-23 22:26:05,902 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,902 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 439 [2025-01-23 22:26:05,902 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,902 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 446 [2025-01-23 22:26:05,902 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,903 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 453 [2025-01-23 22:26:05,903 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,903 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 460 [2025-01-23 22:26:05,903 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,903 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 467 [2025-01-23 22:26:05,903 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,903 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 474 [2025-01-23 22:26:05,903 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,903 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 481 [2025-01-23 22:26:05,903 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,903 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 488 [2025-01-23 22:26:05,903 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,903 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 495 [2025-01-23 22:26:05,903 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,903 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 502 [2025-01-23 22:26:05,903 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,903 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 509 [2025-01-23 22:26:05,903 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,903 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 516 [2025-01-23 22:26:05,903 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,903 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 523 [2025-01-23 22:26:05,903 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,903 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 530 [2025-01-23 22:26:05,903 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,903 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 537 [2025-01-23 22:26:05,903 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,903 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 544 [2025-01-23 22:26:05,903 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,903 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 551 [2025-01-23 22:26:05,903 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,903 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 558 [2025-01-23 22:26:05,903 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,904 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 565 [2025-01-23 22:26:05,904 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:26:05,904 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-23 22:26:05,904 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 22:26:05,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 22:26:05,904 INFO L85 PathProgramCache]: Analyzing trace with hash 2092292804, now seen corresponding path program 5 times [2025-01-23 22:26:05,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 22:26:05,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761715605] [2025-01-23 22:26:05,904 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-23 22:26:05,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 22:26:06,003 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 571 statements into 79 equivalence classes. [2025-01-23 22:26:10,505 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 79 check-sat command(s) and asserted 571 of 571 statements. [2025-01-23 22:26:10,505 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 79 check-sat command(s) [2025-01-23 22:26:10,505 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 22:26:40,887 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 22:26:40,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 22:26:40,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761715605] [2025-01-23 22:26:40,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761715605] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 22:26:40,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1230950282] [2025-01-23 22:26:40,887 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-23 22:26:40,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 22:26:40,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 22:26:40,889 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 22:26:40,890 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 22:26:41,270 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 571 statements into 79 equivalence classes. Killed by 15