./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread/stack_longer-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_longer-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 4351dece6a672e511bbcb86915e62fc8a7361763ad7ab88f2e640b2d00ea50a7 --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 22:13:58,970 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-23 22:13:59,057 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-01-23 22:13:59,060 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-23 22:13:59,061 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-23 22:13:59,082 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-23 22:13:59,082 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-23 22:13:59,082 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-23 22:13:59,082 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-23 22:13:59,082 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-23 22:13:59,083 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-23 22:13:59,083 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-23 22:13:59,083 INFO L153 SettingsManager]: * Use SBE=true [2025-01-23 22:13:59,083 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-23 22:13:59,083 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-23 22:13:59,083 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-23 22:13:59,083 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-23 22:13:59,083 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-23 22:13:59,083 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-23 22:13:59,083 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-23 22:13:59,083 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-23 22:13:59,083 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-23 22:13:59,083 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-23 22:13:59,083 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-23 22:13:59,083 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-23 22:13:59,083 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-23 22:13:59,083 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-23 22:13:59,084 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-23 22:13:59,084 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-23 22:13:59,084 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-23 22:13:59,084 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-23 22:13:59,084 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-23 22:13:59,084 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-23 22:13:59,084 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-23 22:13:59,084 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-01-23 22:13:59,084 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-23 22:13:59,084 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-23 22:13:59,084 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-01-23 22:13:59,084 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-23 22:13:59,084 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-23 22:13:59,084 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-01-23 22:13:59,084 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-01-23 22:13:59,084 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-01-23 22:13:59,084 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 -> 4351dece6a672e511bbcb86915e62fc8a7361763ad7ab88f2e640b2d00ea50a7 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 22:13:59,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-23 22:13:59,333 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-23 22:13:59,334 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-23 22:13:59,335 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-23 22:13:59,335 INFO L274 PluginConnector]: CDTParser initialized [2025-01-23 22:13:59,336 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread/stack_longer-1.i [2025-01-23 22:14:00,596 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/7e3f313f1/090bceb0dfce458cb3146a407298b852/FLAG1e1bb4a86 [2025-01-23 22:14:00,875 INFO L384 CDTParser]: Found 1 translation units. [2025-01-23 22:14:00,877 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread/stack_longer-1.i [2025-01-23 22:14:00,890 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/7e3f313f1/090bceb0dfce458cb3146a407298b852/FLAG1e1bb4a86 [2025-01-23 22:14:00,903 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/7e3f313f1/090bceb0dfce458cb3146a407298b852 [2025-01-23 22:14:00,905 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-23 22:14:00,906 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-23 22:14:00,907 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-23 22:14:00,907 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-23 22:14:00,910 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-23 22:14:00,911 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 10:14:00" (1/1) ... [2025-01-23 22:14:00,911 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@555a152b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:14:00, skipping insertion in model container [2025-01-23 22:14:00,912 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 10:14:00" (1/1) ... [2025-01-23 22:14:00,934 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-23 22:14:01,152 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_longer-1.i[41527,41540] [2025-01-23 22:14:01,169 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-23 22:14:01,193 INFO L200 MainTranslator]: Completed pre-run [2025-01-23 22:14:01,265 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_longer-1.i[41527,41540] [2025-01-23 22:14:01,270 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-23 22:14:01,338 INFO L204 MainTranslator]: Completed translation [2025-01-23 22:14:01,339 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:14:01 WrapperNode [2025-01-23 22:14:01,339 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-23 22:14:01,340 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-23 22:14:01,340 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-23 22:14:01,340 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-23 22:14:01,344 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:14:01" (1/1) ... [2025-01-23 22:14:01,356 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:14:01" (1/1) ... [2025-01-23 22:14:01,385 INFO L138 Inliner]: procedures = 277, calls = 431, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 546 [2025-01-23 22:14:01,386 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-23 22:14:01,386 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-23 22:14:01,386 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-23 22:14:01,386 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-23 22:14:01,391 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:14:01" (1/1) ... [2025-01-23 22:14:01,392 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:14:01" (1/1) ... [2025-01-23 22:14:01,397 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:14:01" (1/1) ... [2025-01-23 22:14:01,397 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:14:01" (1/1) ... [2025-01-23 22:14:01,410 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:14:01" (1/1) ... [2025-01-23 22:14:01,411 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:14:01" (1/1) ... [2025-01-23 22:14:01,413 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:14:01" (1/1) ... [2025-01-23 22:14:01,415 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:14:01" (1/1) ... [2025-01-23 22:14:01,416 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:14:01" (1/1) ... [2025-01-23 22:14:01,423 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-23 22:14:01,423 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-23 22:14:01,423 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-23 22:14:01,423 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-23 22:14:01,424 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:14:01" (1/1) ... [2025-01-23 22:14:01,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-23 22:14:01,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 22:14:01,463 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 22:14:01,467 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 22:14:01,491 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2025-01-23 22:14:01,491 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2025-01-23 22:14:01,491 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2025-01-23 22:14:01,491 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2025-01-23 22:14:01,491 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-01-23 22:14:01,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-01-23 22:14:01,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-01-23 22:14:01,491 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-01-23 22:14:01,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-23 22:14:01,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-01-23 22:14:01,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-23 22:14:01,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-23 22:14:01,492 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 22:14:01,617 INFO L234 CfgBuilder]: Building ICFG [2025-01-23 22:14:01,618 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-23 22:14:02,243 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-23 22:14:02,243 INFO L283 CfgBuilder]: Performing block encoding [2025-01-23 22:14:05,086 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-23 22:14:05,086 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-23 22:14:05,086 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 10:14:05 BoogieIcfgContainer [2025-01-23 22:14:05,086 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-23 22:14:05,088 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-23 22:14:05,088 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-23 22:14:05,094 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-23 22:14:05,095 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.01 10:14:00" (1/3) ... [2025-01-23 22:14:05,095 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d884f26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.01 10:14:05, skipping insertion in model container [2025-01-23 22:14:05,095 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:14:01" (2/3) ... [2025-01-23 22:14:05,095 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d884f26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.01 10:14:05, skipping insertion in model container [2025-01-23 22:14:05,095 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 10:14:05" (3/3) ... [2025-01-23 22:14:05,096 INFO L128 eAbstractionObserver]: Analyzing ICFG stack_longer-1.i [2025-01-23 22:14:05,106 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-23 22:14:05,107 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG stack_longer-1.i that has 3 procedures, 31 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2025-01-23 22:14:05,107 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-23 22:14:05,146 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-01-23 22:14:05,177 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 22:14:05,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-01-23 22:14:05,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 22:14:05,181 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 22:14:05,185 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 22:14:05,257 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-23 22:14:05,269 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t1Thread1of1ForFork1 ======== [2025-01-23 22:14:05,276 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;@5dd0bb63, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 22:14:05,276 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-23 22:14:05,753 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 22:14:05,753 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 22:14:05,754 INFO L139 ounterexampleChecker]: Examining path program with hash 1570507689, occurence #1 [2025-01-23 22:14:05,754 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 22:14:05,754 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 22:14:05,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 22:14:05,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1324303931, now seen corresponding path program 1 times [2025-01-23 22:14:05,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 22:14:05,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594576746] [2025-01-23 22:14:05,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 22:14:05,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 22:14:05,816 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-23 22:14:05,930 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-23 22:14:05,930 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 22:14:05,930 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 22:14:06,332 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 22:14:06,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 22:14:06,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594576746] [2025-01-23 22:14:06,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594576746] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 22:14:06,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 22:14:06,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-23 22:14:06,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671925568] [2025-01-23 22:14:06,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 22:14:06,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-23 22:14:06,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 22:14:06,358 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-23 22:14:06,358 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-23 22:14:06,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 22:14:06,359 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 22:14:06,360 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 22:14:06,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 22:14:06,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 22:14:06,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-23 22:14:06,684 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 22:14:06,684 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 22:14:06,684 INFO L139 ounterexampleChecker]: Examining path program with hash 756921851, occurence #1 [2025-01-23 22:14:06,684 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 22:14:06,684 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 22:14:06,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 22:14:06,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1069721770, now seen corresponding path program 1 times [2025-01-23 22:14:06,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 22:14:06,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429620387] [2025-01-23 22:14:06,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 22:14:06,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 22:14:06,699 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-01-23 22:14:06,714 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-01-23 22:14:06,714 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 22:14:06,714 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 22:14:06,818 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 22:14:06,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 22:14:06,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429620387] [2025-01-23 22:14:06,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429620387] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 22:14:06,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 22:14:06,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-23 22:14:06,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722901075] [2025-01-23 22:14:06,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 22:14:06,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-23 22:14:06,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 22:14:06,819 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-23 22:14:06,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-23 22:14:06,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 22:14:06,820 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 22:14:06,820 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 22:14:06,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 22:14:06,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 22:14:06,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 22:14:06,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:14:06,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-23 22:14:06,876 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 22:14:06,876 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 22:14:06,876 INFO L139 ounterexampleChecker]: Examining path program with hash 1275677073, occurence #1 [2025-01-23 22:14:06,876 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 22:14:06,876 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 22:14:06,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 22:14:06,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1589221397, now seen corresponding path program 1 times [2025-01-23 22:14:06,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 22:14:06,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807164406] [2025-01-23 22:14:06,877 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 22:14:06,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 22:14:06,894 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-01-23 22:14:06,914 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-01-23 22:14:06,914 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 22:14:06,914 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 22:14:07,054 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 22:14:07,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 22:14:07,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807164406] [2025-01-23 22:14:07,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807164406] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 22:14:07,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 22:14:07,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-23 22:14:07,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405438753] [2025-01-23 22:14:07,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 22:14:07,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-23 22:14:07,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 22:14:07,055 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-23 22:14:07,055 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-23 22:14:07,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 22:14:07,055 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 22:14:07,055 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 22:14:07,055 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 22:14:07,055 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:14:07,055 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 22:14:07,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 22:14:07,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:14:07,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:14:07,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-23 22:14:07,098 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 22:14:07,098 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 22:14:07,098 INFO L139 ounterexampleChecker]: Examining path program with hash -230702753, occurence #1 [2025-01-23 22:14:07,098 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 22:14:07,098 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 22:14:07,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 22:14:07,099 INFO L85 PathProgramCache]: Analyzing trace with hash 813354157, now seen corresponding path program 1 times [2025-01-23 22:14:07,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 22:14:07,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65150167] [2025-01-23 22:14:07,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 22:14:07,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 22:14:07,112 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-01-23 22:14:07,127 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-01-23 22:14:07,127 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 22:14:07,127 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 22:14:07,429 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 22:14:07,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 22:14:07,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65150167] [2025-01-23 22:14:07,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65150167] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 22:14:07,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [794066920] [2025-01-23 22:14:07,430 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 22:14:07,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 22:14:07,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 22:14:07,436 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 22:14:07,441 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 22:14:07,500 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-01-23 22:14:07,601 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-01-23 22:14:07,601 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 22:14:07,601 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 22:14:07,604 INFO L256 TraceCheckSpWp]: Trace formula consists of 971 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-23 22:14:07,610 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 22:14:07,636 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 22:14:07,756 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 22:14:07,757 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 22:14:07,799 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 22:14:07,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [794066920] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 22:14:07,799 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 22:14:07,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-01-23 22:14:07,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008514830] [2025-01-23 22:14:07,799 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 22:14:07,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-23 22:14:07,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 22:14:07,800 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-23 22:14:07,800 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2025-01-23 22:14:07,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 22:14:07,800 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 22:14:07,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 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 22:14:07,800 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 22:14:07,800 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:14:07,800 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:14:07,800 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 22:14:07,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 22:14:07,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:14:07,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:14:07,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-23 22:14:07,979 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-01-23 22:14:08,172 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 22:14:08,172 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 22:14:08,172 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 22:14:08,172 INFO L139 ounterexampleChecker]: Examining path program with hash 264998807, occurence #1 [2025-01-23 22:14:08,172 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 22:14:08,172 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 22:14:08,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 22:14:08,173 INFO L85 PathProgramCache]: Analyzing trace with hash -2040038710, now seen corresponding path program 2 times [2025-01-23 22:14:08,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 22:14:08,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845310325] [2025-01-23 22:14:08,173 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 22:14:08,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 22:14:08,268 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 62 statements into 2 equivalence classes. [2025-01-23 22:14:08,329 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 62 of 62 statements. [2025-01-23 22:14:08,329 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-23 22:14:08,329 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 22:14:08,879 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 22:14:08,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 22:14:08,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845310325] [2025-01-23 22:14:08,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845310325] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 22:14:08,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 22:14:08,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-23 22:14:08,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014814878] [2025-01-23 22:14:08,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 22:14:08,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-23 22:14:08,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 22:14:08,881 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-23 22:14:08,881 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-23 22:14:08,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 22:14:08,881 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 22:14:08,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 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 22:14:08,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 22:14:08,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:14:08,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:14:08,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-23 22:14:08,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 22:14:08,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 22:14:08,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:14:08,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:14:08,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-23 22:14:08,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 22:14:08,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-23 22:14:08,959 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 22:14:08,959 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 22:14:08,959 INFO L139 ounterexampleChecker]: Examining path program with hash 35810137, occurence #1 [2025-01-23 22:14:08,959 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 22:14:08,960 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 22:14:08,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 22:14:08,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1276027811, now seen corresponding path program 1 times [2025-01-23 22:14:08,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 22:14:08,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276633999] [2025-01-23 22:14:08,960 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 22:14:08,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 22:14:08,980 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-01-23 22:14:09,004 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-01-23 22:14:09,005 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 22:14:09,005 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 22:14:09,554 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 22:14:09,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 22:14:09,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276633999] [2025-01-23 22:14:09,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276633999] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 22:14:09,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376690351] [2025-01-23 22:14:09,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 22:14:09,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 22:14:09,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 22:14:09,556 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 22:14:09,560 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 22:14:09,644 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-01-23 22:14:09,774 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-01-23 22:14:09,774 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 22:14:09,775 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 22:14:09,779 INFO L256 TraceCheckSpWp]: Trace formula consists of 1056 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-01-23 22:14:09,786 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 22:14:09,805 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 22:14:09,929 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 22:14:09,955 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 22:14:09,985 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 22:14:10,025 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 22:14:10,025 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 22:14:10,525 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 22:14:10,531 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 22:14:10,581 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 22:14:10,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376690351] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 22:14:10,581 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 22:14:10,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 17 [2025-01-23 22:14:10,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433067401] [2025-01-23 22:14:10,581 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 22:14:10,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-01-23 22:14:10,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 22:14:10,582 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-01-23 22:14:10,583 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=189, Unknown=0, NotChecked=0, Total=306 [2025-01-23 22:14:10,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 22:14:10,583 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 22:14:10,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.611111111111111) internal successors, (119), 17 states have internal predecessors, (119), 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 22:14:10,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 22:14:10,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:14:10,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:14:10,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-23 22:14:10,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 22:14:10,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 22:14:10,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 22:14:10,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:14:10,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:14:10,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-23 22:14:10,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 22:14:10,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-01-23 22:14:10,889 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 22:14:11,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 22:14:11,083 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 22:14:11,083 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 22:14:11,083 INFO L139 ounterexampleChecker]: Examining path program with hash 35810137, occurence #2 [2025-01-23 22:14:11,083 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-23 22:14:11,083 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2025-01-23 22:14:11,092 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 22:14:11,093 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-01-23 22:14:11,093 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 22:14:11,093 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2025-01-23 22:14:11,093 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:11,093 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2025-01-23 22:14:11,093 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:11,093 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2025-01-23 22:14:11,093 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:11,093 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2025-01-23 22:14:11,093 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:11,093 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 47 [2025-01-23 22:14:11,093 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:11,093 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 54 [2025-01-23 22:14:11,094 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:11,094 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 61 [2025-01-23 22:14:11,094 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:11,094 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 68 [2025-01-23 22:14:11,094 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:11,094 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 75 [2025-01-23 22:14:11,094 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:11,094 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-23 22:14:11,094 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 22:14:11,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 22:14:11,095 INFO L85 PathProgramCache]: Analyzing trace with hash -728143014, now seen corresponding path program 2 times [2025-01-23 22:14:11,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 22:14:11,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217526906] [2025-01-23 22:14:11,095 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 22:14:11,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 22:14:11,121 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 81 statements into 2 equivalence classes. [2025-01-23 22:14:11,168 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 81 of 81 statements. [2025-01-23 22:14:11,168 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-23 22:14:11,168 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 22:14:12,264 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 22:14:12,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 22:14:12,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217526906] [2025-01-23 22:14:12,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217526906] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 22:14:12,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [959923283] [2025-01-23 22:14:12,264 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 22:14:12,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 22:14:12,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 22:14:12,267 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 22:14:12,271 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 22:14:12,358 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 81 statements into 2 equivalence classes. [2025-01-23 22:14:12,505 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 81 of 81 statements. [2025-01-23 22:14:12,505 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-23 22:14:12,505 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 22:14:12,509 INFO L256 TraceCheckSpWp]: Trace formula consists of 1201 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-01-23 22:14:12,517 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 22:14:12,530 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 22:14:12,629 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 22:14:12,649 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 22:14:12,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 22:14:12,697 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 22:14:12,721 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 22:14:12,745 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 22:14:12,837 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 22:14:12,868 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 22:14:12,897 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 22:14:12,897 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 22:14:13,780 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 22:14:13,789 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 22:14:13,879 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 22:14:13,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [959923283] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 22:14:13,879 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 22:14:13,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12, 12] total 32 [2025-01-23 22:14:13,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556146509] [2025-01-23 22:14:13,879 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 22:14:13,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2025-01-23 22:14:13,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 22:14:13,882 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2025-01-23 22:14:13,882 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=369, Invalid=687, Unknown=0, NotChecked=0, Total=1056 [2025-01-23 22:14:13,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 22:14:13,882 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 22:14:13,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 6.484848484848484) internal successors, (214), 32 states have internal predecessors, (214), 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 22:14:13,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 22:14:13,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:14:13,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:14:13,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-23 22:14:13,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 22:14:13,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-01-23 22:14:13,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 22:14:14,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 22:14:14,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:14:14,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:14:14,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-23 22:14:14,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 22:14:14,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-01-23 22:14:14,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2025-01-23 22:14:14,518 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 22:14:14,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 22:14:14,715 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 22:14:14,715 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 22:14:14,715 INFO L139 ounterexampleChecker]: Examining path program with hash 35810137, occurence #3 [2025-01-23 22:14:14,716 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-23 22:14:14,716 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2025-01-23 22:14:14,716 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 22:14:14,716 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-01-23 22:14:14,716 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 22:14:14,716 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2025-01-23 22:14:14,716 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:14,716 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2025-01-23 22:14:14,716 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:14,716 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2025-01-23 22:14:14,716 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:14,716 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2025-01-23 22:14:14,716 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:14,716 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 47 [2025-01-23 22:14:14,717 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:14,717 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 54 [2025-01-23 22:14:14,717 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:14,717 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 61 [2025-01-23 22:14:14,717 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:14,717 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 68 [2025-01-23 22:14:14,717 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:14,717 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 75 [2025-01-23 22:14:14,717 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:14,717 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 82 [2025-01-23 22:14:14,717 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:14,717 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 89 [2025-01-23 22:14:14,717 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:14,717 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 96 [2025-01-23 22:14:14,717 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:14,717 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 103 [2025-01-23 22:14:14,717 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:14,717 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 110 [2025-01-23 22:14:14,717 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:14,717 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 117 [2025-01-23 22:14:14,717 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:14,717 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 124 [2025-01-23 22:14:14,717 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:14,717 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 131 [2025-01-23 22:14:14,717 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:14,717 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 138 [2025-01-23 22:14:14,717 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:14,717 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 145 [2025-01-23 22:14:14,717 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:14,717 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-23 22:14:14,717 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 22:14:14,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 22:14:14,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1289287558, now seen corresponding path program 3 times [2025-01-23 22:14:14,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 22:14:14,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783304945] [2025-01-23 22:14:14,718 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-23 22:14:14,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 22:14:14,750 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 151 statements into 19 equivalence classes. [2025-01-23 22:14:15,427 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) and asserted 151 of 151 statements. [2025-01-23 22:14:15,427 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2025-01-23 22:14:15,427 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 22:14:17,976 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 22:14:17,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 22:14:17,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783304945] [2025-01-23 22:14:17,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783304945] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 22:14:17,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [324771520] [2025-01-23 22:14:17,977 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-23 22:14:17,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 22:14:17,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 22:14:17,978 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 22:14:17,979 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 22:14:18,126 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 151 statements into 19 equivalence classes. [2025-01-23 22:14:20,560 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) and asserted 151 of 151 statements. [2025-01-23 22:14:20,560 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2025-01-23 22:14:20,560 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 22:14:20,573 INFO L256 TraceCheckSpWp]: Trace formula consists of 1491 conjuncts, 33 conjuncts are in the unsatisfiable core [2025-01-23 22:14:20,587 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 22:14:20,607 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 22:14:20,680 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 22:14:20,697 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 22:14:20,720 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 22:14:20,747 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 22:14:20,774 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 22:14:20,796 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 22:14:20,824 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 22:14:20,852 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 22:14:20,883 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 22:14:20,921 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 22:14:20,949 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 22:14:20,981 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 22:14:21,016 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 22:14:21,047 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 22:14:21,082 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 22:14:21,113 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 22:14:21,146 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 22:14:21,187 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 22:14:21,269 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 22:14:21,269 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 22:14:21,900 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 22:14:21,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [324771520] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 22:14:21,900 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 22:14:21,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 24, 23] total 68 [2025-01-23 22:14:21,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758146390] [2025-01-23 22:14:21,900 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 22:14:21,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2025-01-23 22:14:21,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 22:14:21,902 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2025-01-23 22:14:21,903 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1373, Invalid=3319, Unknown=0, NotChecked=0, Total=4692 [2025-01-23 22:14:21,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 22:14:21,903 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 22:14:21,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 69 states have (on average 6.159420289855072) internal successors, (425), 68 states have internal predecessors, (425), 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 22:14:21,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 22:14:21,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:14:21,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:14:21,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-23 22:14:21,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 22:14:21,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-01-23 22:14:21,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2025-01-23 22:14:21,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 22:14:24,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 22:14:24,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:14:24,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:14:24,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-23 22:14:24,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 22:14:24,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-01-23 22:14:24,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2025-01-23 22:14:24,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2025-01-23 22:14:24,660 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 22:14:24,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 22:14:24,845 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 22:14:24,845 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 22:14:24,846 INFO L139 ounterexampleChecker]: Examining path program with hash 35810137, occurence #4 [2025-01-23 22:14:24,846 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-23 22:14:24,846 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2025-01-23 22:14:24,847 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 22:14:24,847 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-01-23 22:14:24,847 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 22:14:24,847 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2025-01-23 22:14:24,847 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:24,847 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2025-01-23 22:14:24,847 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:24,847 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2025-01-23 22:14:24,847 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:24,848 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2025-01-23 22:14:24,848 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:24,848 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 47 [2025-01-23 22:14:24,848 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:24,848 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 54 [2025-01-23 22:14:24,848 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:24,848 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 61 [2025-01-23 22:14:24,848 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:24,848 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 68 [2025-01-23 22:14:24,848 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:24,848 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 75 [2025-01-23 22:14:24,848 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:24,848 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 82 [2025-01-23 22:14:24,848 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:24,848 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 89 [2025-01-23 22:14:24,848 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:24,848 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 96 [2025-01-23 22:14:24,848 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:24,849 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 103 [2025-01-23 22:14:24,849 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:24,849 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 110 [2025-01-23 22:14:24,849 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:24,849 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 117 [2025-01-23 22:14:24,849 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:24,850 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 124 [2025-01-23 22:14:24,850 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:24,850 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 131 [2025-01-23 22:14:24,850 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:24,850 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 138 [2025-01-23 22:14:24,850 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:24,850 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 145 [2025-01-23 22:14:24,850 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:24,850 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 152 [2025-01-23 22:14:24,850 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:24,850 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 159 [2025-01-23 22:14:24,850 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:24,850 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 166 [2025-01-23 22:14:24,850 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:24,850 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 173 [2025-01-23 22:14:24,850 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:24,850 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 180 [2025-01-23 22:14:24,850 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:24,850 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 187 [2025-01-23 22:14:24,850 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:24,850 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 194 [2025-01-23 22:14:24,850 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:24,850 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 201 [2025-01-23 22:14:24,850 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:24,850 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 208 [2025-01-23 22:14:24,850 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:24,850 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 215 [2025-01-23 22:14:24,850 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:24,850 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 222 [2025-01-23 22:14:24,850 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:24,850 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 229 [2025-01-23 22:14:24,850 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:24,851 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 236 [2025-01-23 22:14:24,851 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:24,851 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 243 [2025-01-23 22:14:24,851 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:24,851 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 250 [2025-01-23 22:14:24,851 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:24,851 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 257 [2025-01-23 22:14:24,851 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:24,851 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 264 [2025-01-23 22:14:24,851 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:24,851 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 271 [2025-01-23 22:14:24,851 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:24,851 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 278 [2025-01-23 22:14:24,851 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:24,851 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 285 [2025-01-23 22:14:24,851 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:24,851 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-23 22:14:24,851 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 22:14:24,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 22:14:24,851 INFO L85 PathProgramCache]: Analyzing trace with hash 953301690, now seen corresponding path program 4 times [2025-01-23 22:14:24,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 22:14:24,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608994852] [2025-01-23 22:14:24,853 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-23 22:14:24,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 22:14:24,904 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 291 statements into 2 equivalence classes. [2025-01-23 22:14:25,201 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 22:14:25,202 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-23 22:14:25,202 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 22:14:32,036 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 22:14:32,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 22:14:32,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608994852] [2025-01-23 22:14:32,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608994852] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 22:14:32,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1485537171] [2025-01-23 22:14:32,037 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-23 22:14:32,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 22:14:32,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 22:14:32,038 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 22:14:32,040 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 22:14:32,229 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 291 statements into 2 equivalence classes. [2025-01-23 22:14:32,462 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 22:14:32,462 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-23 22:14:32,462 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 22:14:32,474 INFO L256 TraceCheckSpWp]: Trace formula consists of 2071 conjuncts, 53 conjuncts are in the unsatisfiable core [2025-01-23 22:14:32,491 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 22:14:32,503 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 22:14:32,575 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 22:14:32,592 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 22:14:32,610 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 22:14:32,635 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 22:14:32,658 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 22:14:32,680 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 22:14:32,706 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 22:14:32,730 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 22:14:32,753 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 22:14:32,780 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 22:14:32,806 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 22:14:32,829 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 22:14:32,858 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 22:14:32,885 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 22:14:32,918 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 22:14:32,947 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 22:14:33,096 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 22:14:33,179 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 22:14:33,266 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 22:14:33,326 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 22:14:33,358 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 22:14:33,410 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 22:14:33,473 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 22:14:33,531 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 22:14:33,583 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 22:14:33,633 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 22:14:33,676 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 22:14:33,723 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 22:14:33,759 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 22:14:33,797 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 22:14:33,834 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 22:14:33,874 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 22:14:33,912 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 22:14:33,955 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 22:14:34,028 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 22:14:34,070 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 22:14:34,110 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 22:14:34,149 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 22:14:34,234 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 22:14:34,234 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 22:14:35,889 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 22:14:35,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1485537171] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 22:14:35,890 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 22:14:35,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [60, 44, 43] total 144 [2025-01-23 22:14:35,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221862737] [2025-01-23 22:14:35,890 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 22:14:35,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 145 states [2025-01-23 22:14:35,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 22:14:35,896 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 145 interpolants. [2025-01-23 22:14:35,902 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6027, Invalid=14853, Unknown=0, NotChecked=0, Total=20880 [2025-01-23 22:14:35,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 22:14:35,903 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 22:14:35,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 145 states, 145 states have (on average 5.841379310344828) internal successors, (847), 144 states have internal predecessors, (847), 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 22:14:35,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 22:14:35,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:14:35,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:14:35,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-23 22:14:35,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 22:14:35,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-01-23 22:14:35,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2025-01-23 22:14:35,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2025-01-23 22:14:35,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 22:14:47,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 22:14:47,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:14:47,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 22:14:47,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-23 22:14:47,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 22:14:47,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-01-23 22:14:47,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2025-01-23 22:14:47,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2025-01-23 22:14:47,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 159 states. [2025-01-23 22:14:47,853 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 22:14:48,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 22:14:48,044 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 22:14:48,044 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 22:14:48,045 INFO L139 ounterexampleChecker]: Examining path program with hash 35810137, occurence #5 [2025-01-23 22:14:48,045 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-23 22:14:48,045 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2025-01-23 22:14:48,045 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 22:14:48,045 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-01-23 22:14:48,045 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 22:14:48,045 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2025-01-23 22:14:48,045 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,045 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2025-01-23 22:14:48,045 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,048 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2025-01-23 22:14:48,049 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,049 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2025-01-23 22:14:48,049 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,049 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 47 [2025-01-23 22:14:48,049 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,049 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 54 [2025-01-23 22:14:48,049 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,049 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 61 [2025-01-23 22:14:48,049 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,049 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 68 [2025-01-23 22:14:48,049 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,049 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 75 [2025-01-23 22:14:48,049 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,049 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 82 [2025-01-23 22:14:48,049 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,049 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 89 [2025-01-23 22:14:48,049 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,049 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 96 [2025-01-23 22:14:48,049 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,049 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 103 [2025-01-23 22:14:48,049 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,049 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 110 [2025-01-23 22:14:48,049 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,049 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 117 [2025-01-23 22:14:48,049 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,049 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 124 [2025-01-23 22:14:48,049 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,049 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 131 [2025-01-23 22:14:48,049 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,049 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 138 [2025-01-23 22:14:48,049 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,049 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 145 [2025-01-23 22:14:48,049 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,049 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 152 [2025-01-23 22:14:48,049 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,049 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 159 [2025-01-23 22:14:48,049 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,049 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 166 [2025-01-23 22:14:48,049 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,049 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 173 [2025-01-23 22:14:48,049 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,049 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 180 [2025-01-23 22:14:48,050 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,050 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 187 [2025-01-23 22:14:48,050 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,050 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 194 [2025-01-23 22:14:48,050 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,050 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 201 [2025-01-23 22:14:48,050 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,050 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 208 [2025-01-23 22:14:48,050 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,050 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 215 [2025-01-23 22:14:48,050 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,050 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 222 [2025-01-23 22:14:48,050 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,050 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 229 [2025-01-23 22:14:48,050 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,050 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 236 [2025-01-23 22:14:48,050 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,050 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 243 [2025-01-23 22:14:48,050 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,050 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 250 [2025-01-23 22:14:48,050 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,050 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 257 [2025-01-23 22:14:48,050 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,050 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 264 [2025-01-23 22:14:48,050 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,050 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 271 [2025-01-23 22:14:48,050 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,050 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 278 [2025-01-23 22:14:48,050 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,050 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 285 [2025-01-23 22:14:48,050 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,050 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 292 [2025-01-23 22:14:48,050 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,050 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 299 [2025-01-23 22:14:48,050 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,050 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 306 [2025-01-23 22:14:48,050 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,050 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 313 [2025-01-23 22:14:48,051 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,051 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 320 [2025-01-23 22:14:48,051 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,051 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 327 [2025-01-23 22:14:48,051 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,051 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 334 [2025-01-23 22:14:48,052 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,052 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 341 [2025-01-23 22:14:48,052 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,052 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 348 [2025-01-23 22:14:48,052 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,052 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 355 [2025-01-23 22:14:48,052 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,052 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 362 [2025-01-23 22:14:48,052 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,052 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 369 [2025-01-23 22:14:48,052 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,052 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 376 [2025-01-23 22:14:48,052 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,052 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 383 [2025-01-23 22:14:48,052 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,052 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 390 [2025-01-23 22:14:48,052 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,052 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 397 [2025-01-23 22:14:48,052 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,052 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 404 [2025-01-23 22:14:48,052 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,052 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 411 [2025-01-23 22:14:48,052 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,052 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 418 [2025-01-23 22:14:48,052 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,052 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 425 [2025-01-23 22:14:48,052 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,052 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 432 [2025-01-23 22:14:48,052 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,052 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 439 [2025-01-23 22:14:48,052 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,052 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 446 [2025-01-23 22:14:48,053 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,053 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 453 [2025-01-23 22:14:48,053 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,053 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 460 [2025-01-23 22:14:48,053 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,053 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 467 [2025-01-23 22:14:48,053 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,053 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 474 [2025-01-23 22:14:48,053 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,053 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 481 [2025-01-23 22:14:48,053 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,053 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 488 [2025-01-23 22:14:48,053 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,053 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 495 [2025-01-23 22:14:48,053 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,053 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 502 [2025-01-23 22:14:48,053 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,053 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 509 [2025-01-23 22:14:48,053 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,053 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 516 [2025-01-23 22:14:48,053 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,053 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 523 [2025-01-23 22:14:48,053 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,053 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 530 [2025-01-23 22:14:48,053 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,053 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 537 [2025-01-23 22:14:48,053 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,053 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 544 [2025-01-23 22:14:48,053 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,053 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 551 [2025-01-23 22:14:48,053 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,053 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 558 [2025-01-23 22:14:48,053 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,054 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 565 [2025-01-23 22:14:48,054 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 22:14:48,054 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-23 22:14:48,054 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 22:14:48,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 22:14:48,054 INFO L85 PathProgramCache]: Analyzing trace with hash -341803206, now seen corresponding path program 5 times [2025-01-23 22:14:48,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 22:14:48,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527992893] [2025-01-23 22:14:48,055 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-23 22:14:48,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 22:14:48,141 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 571 statements into 79 equivalence classes. [2025-01-23 22:14:52,411 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 79 check-sat command(s) and asserted 571 of 571 statements. [2025-01-23 22:14:52,412 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 79 check-sat command(s) [2025-01-23 22:14:52,412 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 22:15:20,430 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 22:15:20,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 22:15:20,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527992893] [2025-01-23 22:15:20,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527992893] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 22:15:20,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089432112] [2025-01-23 22:15:20,430 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-23 22:15:20,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 22:15:20,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 22:15:20,432 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 22:15:20,434 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 22:15:20,768 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 571 statements into 79 equivalence classes. Killed by 15