./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread/stack_longer-2.i --traceabstraction.use.conditional.por.in.concurrent.analysis true --traceabstraction.commutativity.condition.synthesis SUFFICIENT --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ebd41074 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/pthread/stack_longer-2.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 402cb3c5f3290109e83e598d96446a87fac59fa4aaa0b6234366e7da005f5688 --traceabstraction.use.conditional.por.in.concurrent.analysis true --traceabstraction.commutativity.condition.synthesis SUFFICIENT --- Real Ultimate output --- This is Ultimate 0.3.0-dev-ebd4107-m [2025-01-23 14:51:20,837 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-23 14:51:20,902 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-01-23 14:51:20,906 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-23 14:51:20,908 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-23 14:51:20,928 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-23 14:51:20,929 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-23 14:51:20,929 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-23 14:51:20,929 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-23 14:51:20,930 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-23 14:51:20,930 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-23 14:51:20,931 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-23 14:51:20,931 INFO L153 SettingsManager]: * Use SBE=true [2025-01-23 14:51:20,931 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-23 14:51:20,931 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-23 14:51:20,932 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-23 14:51:20,932 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-23 14:51:20,932 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-23 14:51:20,932 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-23 14:51:20,932 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-23 14:51:20,932 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-23 14:51:20,932 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-23 14:51:20,932 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-23 14:51:20,932 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-23 14:51:20,933 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-23 14:51:20,933 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-23 14:51:20,933 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-23 14:51:20,933 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-23 14:51:20,933 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-23 14:51:20,933 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-23 14:51:20,933 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-23 14:51:20,933 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-23 14:51:20,933 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-23 14:51:20,934 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-23 14:51:20,934 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-01-23 14:51:20,934 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-23 14:51:20,934 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-23 14:51:20,934 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-01-23 14:51:20,934 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-23 14:51:20,934 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-23 14:51:20,934 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-01-23 14:51:20,934 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-01-23 14:51:20,934 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-01-23 14:51:20,934 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 -> 402cb3c5f3290109e83e598d96446a87fac59fa4aaa0b6234366e7da005f5688 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use conditional POR in concurrent analysis -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> SUFFICIENT [2025-01-23 14:51:21,178 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-23 14:51:21,182 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-23 14:51:21,184 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-23 14:51:21,184 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-23 14:51:21,185 INFO L274 PluginConnector]: CDTParser initialized [2025-01-23 14:51:21,185 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread/stack_longer-2.i [2025-01-23 14:51:22,294 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/85868af0a/ab2427b460ae410eb387e82eaaa7c452/FLAGf9ded0ada [2025-01-23 14:51:22,494 INFO L384 CDTParser]: Found 1 translation units. [2025-01-23 14:51:22,494 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread/stack_longer-2.i [2025-01-23 14:51:22,503 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/85868af0a/ab2427b460ae410eb387e82eaaa7c452/FLAGf9ded0ada [2025-01-23 14:51:22,848 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/85868af0a/ab2427b460ae410eb387e82eaaa7c452 [2025-01-23 14:51:22,850 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-23 14:51:22,851 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-23 14:51:22,852 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-23 14:51:22,852 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-23 14:51:22,854 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-23 14:51:22,855 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 02:51:22" (1/1) ... [2025-01-23 14:51:22,855 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d51a6f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:51:22, skipping insertion in model container [2025-01-23 14:51:22,855 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 02:51:22" (1/1) ... [2025-01-23 14:51:22,887 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-23 14:51:23,161 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-2.i[41529,41542] [2025-01-23 14:51:23,174 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-23 14:51:23,192 INFO L200 MainTranslator]: Completed pre-run [2025-01-23 14:51:23,260 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-2.i[41529,41542] [2025-01-23 14:51:23,269 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-23 14:51:23,338 INFO L204 MainTranslator]: Completed translation [2025-01-23 14:51:23,339 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:51:23 WrapperNode [2025-01-23 14:51:23,339 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-23 14:51:23,340 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-23 14:51:23,340 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-23 14:51:23,340 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-23 14:51:23,344 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:51:23" (1/1) ... [2025-01-23 14:51:23,356 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:51:23" (1/1) ... [2025-01-23 14:51:23,384 INFO L138 Inliner]: procedures = 277, calls = 430, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 539 [2025-01-23 14:51:23,384 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-23 14:51:23,385 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-23 14:51:23,385 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-23 14:51:23,385 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-23 14:51:23,389 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:51:23" (1/1) ... [2025-01-23 14:51:23,390 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:51:23" (1/1) ... [2025-01-23 14:51:23,394 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:51:23" (1/1) ... [2025-01-23 14:51:23,394 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:51:23" (1/1) ... [2025-01-23 14:51:23,405 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:51:23" (1/1) ... [2025-01-23 14:51:23,406 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:51:23" (1/1) ... [2025-01-23 14:51:23,408 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:51:23" (1/1) ... [2025-01-23 14:51:23,409 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:51:23" (1/1) ... [2025-01-23 14:51:23,410 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:51:23" (1/1) ... [2025-01-23 14:51:23,412 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-23 14:51:23,413 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-23 14:51:23,413 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-23 14:51:23,413 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-23 14:51:23,414 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:51:23" (1/1) ... [2025-01-23 14:51:23,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-23 14:51:23,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 14:51:23,457 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2025-01-23 14:51:23,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2025-01-23 14:51:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2025-01-23 14:51:23,474 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2025-01-23 14:51:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2025-01-23 14:51:23,474 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2025-01-23 14:51:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-01-23 14:51:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-01-23 14:51:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-01-23 14:51:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-01-23 14:51:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-23 14:51:23,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-01-23 14:51:23,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-23 14:51:23,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-23 14:51:23,476 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-23 14:51:23,584 INFO L234 CfgBuilder]: Building ICFG [2025-01-23 14:51:23,586 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-23 14:51:24,176 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-23 14:51:24,177 INFO L283 CfgBuilder]: Performing block encoding [2025-01-23 14:51:26,802 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-23 14:51:26,802 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-23 14:51:26,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 02:51:26 BoogieIcfgContainer [2025-01-23 14:51:26,803 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-23 14:51:26,804 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-23 14:51:26,804 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-23 14:51:26,807 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-23 14:51:26,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.01 02:51:22" (1/3) ... [2025-01-23 14:51:26,808 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@306315bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.01 02:51:26, skipping insertion in model container [2025-01-23 14:51:26,808 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:51:23" (2/3) ... [2025-01-23 14:51:26,808 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@306315bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.01 02:51:26, skipping insertion in model container [2025-01-23 14:51:26,808 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 02:51:26" (3/3) ... [2025-01-23 14:51:26,809 INFO L128 eAbstractionObserver]: Analyzing ICFG stack_longer-2.i [2025-01-23 14:51:26,818 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-23 14:51:26,819 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG stack_longer-2.i that has 3 procedures, 30 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2025-01-23 14:51:26,819 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-23 14:51:26,857 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-01-23 14:51:26,888 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 14:51:26,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-01-23 14:51:26,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 14:51:26,890 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 14:51:26,892 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 14:51:26,960 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-23 14:51:26,972 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t1Thread1of1ForFork1 ======== [2025-01-23 14:51:26,978 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;@5ee637e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 14:51:26,979 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-23 14:51:27,128 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 14:51:27,129 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 14:51:27,129 INFO L139 ounterexampleChecker]: Examining path program with hash 1039645209, occurence #1 [2025-01-23 14:51:27,129 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 14:51:27,129 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 14:51:27,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 14:51:27,132 INFO L85 PathProgramCache]: Analyzing trace with hash -858411651, now seen corresponding path program 1 times [2025-01-23 14:51:27,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 14:51:27,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737334486] [2025-01-23 14:51:27,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 14:51:27,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 14:51:27,208 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-23 14:51:27,292 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-23 14:51:27,292 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 14:51:27,292 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 14:51:27,698 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 14:51:27,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 14:51:27,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737334486] [2025-01-23 14:51:27,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737334486] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 14:51:27,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 14:51:27,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-23 14:51:27,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117608913] [2025-01-23 14:51:27,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 14:51:27,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-23 14:51:27,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 14:51:27,719 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-23 14:51:27,720 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-23 14:51:27,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 14:51:27,722 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 14:51:27,723 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 14:51:27,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 14:51:28,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 14:51:28,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-23 14:51:28,032 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 14:51:28,032 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 14:51:28,032 INFO L139 ounterexampleChecker]: Examining path program with hash 1898228608, occurence #1 [2025-01-23 14:51:28,032 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 14:51:28,033 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 14:51:28,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 14:51:28,033 INFO L85 PathProgramCache]: Analyzing trace with hash -852390286, now seen corresponding path program 1 times [2025-01-23 14:51:28,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 14:51:28,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543719601] [2025-01-23 14:51:28,033 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 14:51:28,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 14:51:28,050 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-01-23 14:51:28,067 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-01-23 14:51:28,067 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 14:51:28,067 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 14:51:28,233 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 14:51:28,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 14:51:28,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543719601] [2025-01-23 14:51:28,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543719601] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 14:51:28,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 14:51:28,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-23 14:51:28,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190608645] [2025-01-23 14:51:28,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 14:51:28,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-23 14:51:28,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 14:51:28,235 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-23 14:51:28,236 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-23 14:51:28,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 14:51:28,236 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 14:51:28,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 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 14:51:28,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 14:51:28,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 14:51:28,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 14:51:28,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 14:51:28,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-23 14:51:28,292 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 14:51:28,292 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 14:51:28,292 INFO L139 ounterexampleChecker]: Examining path program with hash -1300197478, occurence #1 [2025-01-23 14:51:28,293 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 14:51:28,293 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 14:51:28,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 14:51:28,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1806552881, now seen corresponding path program 1 times [2025-01-23 14:51:28,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 14:51:28,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862150834] [2025-01-23 14:51:28,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 14:51:28,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 14:51:28,310 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-01-23 14:51:28,324 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-01-23 14:51:28,324 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 14:51:28,324 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 14:51:28,512 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 14:51:28,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 14:51:28,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862150834] [2025-01-23 14:51:28,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862150834] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 14:51:28,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 14:51:28,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-23 14:51:28,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801538979] [2025-01-23 14:51:28,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 14:51:28,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-23 14:51:28,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 14:51:28,513 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-23 14:51:28,513 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-23 14:51:28,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 14:51:28,513 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 14:51:28,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 14:51:28,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 14:51:28,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 14:51:28,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 14:51:28,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 14:51:28,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 14:51:28,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 14:51:28,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-23 14:51:28,572 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 14:51:28,572 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 14:51:28,572 INFO L139 ounterexampleChecker]: Examining path program with hash -1118055077, occurence #1 [2025-01-23 14:51:28,572 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 14:51:28,572 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 14:51:28,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 14:51:28,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1067933597, now seen corresponding path program 1 times [2025-01-23 14:51:28,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 14:51:28,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379360313] [2025-01-23 14:51:28,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 14:51:28,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 14:51:28,592 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-01-23 14:51:28,611 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-01-23 14:51:28,612 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 14:51:28,612 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 14:51:28,937 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 14:51:28,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 14:51:28,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379360313] [2025-01-23 14:51:28,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379360313] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 14:51:28,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489990611] [2025-01-23 14:51:28,938 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 14:51:28,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 14:51:28,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 14:51:28,941 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 14:51:28,943 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 14:51:29,010 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-01-23 14:51:29,135 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-01-23 14:51:29,135 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 14:51:29,135 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 14:51:29,140 INFO L256 TraceCheckSpWp]: Trace formula consists of 967 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-23 14:51:29,149 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 14:51:29,187 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 14:51:29,392 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 14:51:29,393 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 14:51:29,447 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 14:51:29,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [489990611] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 14:51:29,449 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 14:51:29,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-01-23 14:51:29,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120432] [2025-01-23 14:51:29,449 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 14:51:29,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-23 14:51:29,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 14:51:29,451 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-23 14:51:29,451 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2025-01-23 14:51:29,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 14:51:29,452 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 14:51:29,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.9) internal successors, (69), 10 states have internal predecessors, (69), 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 14:51:29,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 14:51:29,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 14:51:29,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 14:51:29,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 14:51:29,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 14:51:29,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 14:51:29,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 14:51:29,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-23 14:51:29,671 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 14:51:29,864 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 14:51:29,865 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 14:51:29,865 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 14:51:29,865 INFO L139 ounterexampleChecker]: Examining path program with hash -289913407, occurence #1 [2025-01-23 14:51:29,865 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 14:51:29,865 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 14:51:29,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 14:51:29,865 INFO L85 PathProgramCache]: Analyzing trace with hash 953415162, now seen corresponding path program 1 times [2025-01-23 14:51:29,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 14:51:29,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540738523] [2025-01-23 14:51:29,866 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 14:51:29,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 14:51:29,896 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 78 statements into 1 equivalence classes. [2025-01-23 14:51:29,927 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 78 of 78 statements. [2025-01-23 14:51:29,930 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 14:51:29,930 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 14:51:30,412 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 5 proven. 27 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-01-23 14:51:30,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 14:51:30,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540738523] [2025-01-23 14:51:30,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540738523] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 14:51:30,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1604174847] [2025-01-23 14:51:30,413 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 14:51:30,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 14:51:30,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 14:51:30,415 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 14:51:30,417 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 14:51:30,509 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 78 statements into 1 equivalence classes. [2025-01-23 14:51:30,631 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 78 of 78 statements. [2025-01-23 14:51:30,632 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 14:51:30,632 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 14:51:30,635 INFO L256 TraceCheckSpWp]: Trace formula consists of 1184 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-23 14:51:30,640 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 14:51:30,660 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 14:51:30,697 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 14:51:30,742 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 14:51:30,781 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 5 proven. 27 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-01-23 14:51:30,781 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 14:51:31,037 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 5 proven. 27 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-01-23 14:51:31,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1604174847] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 14:51:31,038 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 14:51:31,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2025-01-23 14:51:31,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946102603] [2025-01-23 14:51:31,038 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 14:51:31,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-01-23 14:51:31,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 14:51:31,039 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-01-23 14:51:31,039 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2025-01-23 14:51:31,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 14:51:31,039 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 14:51:31,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.285714285714286) internal successors, (88), 14 states have internal predecessors, (88), 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 14:51:31,039 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 14:51:31,039 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 14:51:31,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 14:51:31,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-01-23 14:51:31,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 14:51:31,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 14:51:31,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 14:51:31,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 14:51:31,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-23 14:51:31,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-01-23 14:51:31,363 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-23 14:51:31,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 14:51:31,555 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 14:51:31,555 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 14:51:31,555 INFO L139 ounterexampleChecker]: Examining path program with hash -289913407, occurence #2 [2025-01-23 14:51:31,555 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-23 14:51:31,556 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2025-01-23 14:51:31,565 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 14:51:31,565 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-01-23 14:51:31,565 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 14:51:31,565 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2025-01-23 14:51:31,565 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:51:31,565 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 61 [2025-01-23 14:51:31,590 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:51:31,590 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 84 [2025-01-23 14:51:31,591 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:51:31,591 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 90 [2025-01-23 14:51:31,591 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:51:31,591 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 96 [2025-01-23 14:51:31,591 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:51:31,591 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 102 [2025-01-23 14:51:31,591 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:51:31,591 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 108 [2025-01-23 14:51:31,591 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:51:31,591 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 114 [2025-01-23 14:51:31,591 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:51:31,591 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 120 [2025-01-23 14:51:31,591 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:51:31,591 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 126 [2025-01-23 14:51:31,592 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:51:31,592 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-23 14:51:31,592 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 14:51:31,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 14:51:31,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1403899351, now seen corresponding path program 2 times [2025-01-23 14:51:31,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 14:51:31,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10238769] [2025-01-23 14:51:31,592 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 14:51:31,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 14:51:31,620 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 132 statements into 2 equivalence classes. [2025-01-23 14:51:31,666 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 132 of 132 statements. [2025-01-23 14:51:31,666 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-23 14:51:31,666 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 14:51:32,523 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 9 proven. 192 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2025-01-23 14:51:32,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 14:51:32,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10238769] [2025-01-23 14:51:32,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10238769] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 14:51:32,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1893892593] [2025-01-23 14:51:32,524 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 14:51:32,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 14:51:32,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 14:51:32,526 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 14:51:32,527 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 14:51:32,624 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 132 statements into 2 equivalence classes. [2025-01-23 14:51:32,757 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 132 of 132 statements. [2025-01-23 14:51:32,757 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-23 14:51:32,757 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 14:51:32,761 INFO L256 TraceCheckSpWp]: Trace formula consists of 1411 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-01-23 14:51:32,770 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 14:51:32,797 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 14:51:32,831 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 14:51:32,892 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 14:51:32,926 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 14:51:32,960 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 14:51:32,993 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 14:51:33,029 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 14:51:33,068 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 14:51:33,107 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 14:51:33,146 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 14:51:33,232 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 66 proven. 195 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2025-01-23 14:51:33,232 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 14:51:33,808 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 9 proven. 192 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2025-01-23 14:51:33,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1893892593] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 14:51:33,808 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 14:51:33,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15, 12] total 32 [2025-01-23 14:51:33,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059653944] [2025-01-23 14:51:33,808 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 14:51:33,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2025-01-23 14:51:33,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 14:51:33,810 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2025-01-23 14:51:33,810 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=378, Invalid=614, Unknown=0, NotChecked=0, Total=992 [2025-01-23 14:51:33,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 14:51:33,810 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 14:51:33,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 6.28125) internal successors, (201), 32 states have internal predecessors, (201), 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 14:51:33,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 14:51:33,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 14:51:33,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 14:51:33,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-01-23 14:51:33,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2025-01-23 14:51:33,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 14:51:35,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 14:51:35,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 14:51:35,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 14:51:35,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-23 14:51:35,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-01-23 14:51:35,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2025-01-23 14:51:35,074 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 14:51:35,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 14:51:35,267 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 14:51:35,267 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 14:51:35,267 INFO L139 ounterexampleChecker]: Examining path program with hash -289913407, occurence #3 [2025-01-23 14:51:35,267 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-23 14:51:35,267 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2025-01-23 14:51:35,267 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 14:51:35,267 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-01-23 14:51:35,267 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 14:51:35,267 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2025-01-23 14:51:35,267 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:51:35,267 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 145 [2025-01-23 14:51:35,295 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:51:35,295 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 168 [2025-01-23 14:51:35,295 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:51:35,295 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 174 [2025-01-23 14:51:35,295 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:51:35,295 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 180 [2025-01-23 14:51:35,295 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:51:35,295 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 186 [2025-01-23 14:51:35,295 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:51:35,295 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 192 [2025-01-23 14:51:35,295 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:51:35,295 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 198 [2025-01-23 14:51:35,295 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:51:35,295 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 204 [2025-01-23 14:51:35,296 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:51:35,296 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 210 [2025-01-23 14:51:35,296 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:51:35,296 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 216 [2025-01-23 14:51:35,296 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:51:35,296 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 222 [2025-01-23 14:51:35,296 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:51:35,296 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 228 [2025-01-23 14:51:35,296 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:51:35,296 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 234 [2025-01-23 14:51:35,296 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:51:35,296 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 240 [2025-01-23 14:51:35,296 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:51:35,296 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 246 [2025-01-23 14:51:35,296 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:51:35,296 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 252 [2025-01-23 14:51:35,296 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:51:35,296 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 258 [2025-01-23 14:51:35,296 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:51:35,296 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 264 [2025-01-23 14:51:35,296 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:51:35,296 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 270 [2025-01-23 14:51:35,296 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:51:35,296 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-23 14:51:35,296 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 14:51:35,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 14:51:35,297 INFO L85 PathProgramCache]: Analyzing trace with hash -780054126, now seen corresponding path program 3 times [2025-01-23 14:51:35,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 14:51:35,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194348548] [2025-01-23 14:51:35,297 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-23 14:51:35,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 14:51:35,349 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 276 statements into 19 equivalence classes. [2025-01-23 14:51:36,009 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) and asserted 240 of 276 statements. [2025-01-23 14:51:36,009 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2025-01-23 14:51:36,009 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 14:51:38,561 INFO L134 CoverageAnalysis]: Checked inductivity of 1800 backedges. 269 proven. 539 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2025-01-23 14:51:38,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 14:51:38,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194348548] [2025-01-23 14:51:38,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194348548] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 14:51:38,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1019383203] [2025-01-23 14:51:38,562 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-23 14:51:38,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 14:51:38,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 14:51:38,563 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 14:51:38,565 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 14:51:38,725 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 276 statements into 19 equivalence classes. [2025-01-23 14:51:48,420 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) and asserted 240 of 276 statements. [2025-01-23 14:51:48,421 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2025-01-23 14:51:48,421 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 14:51:48,434 INFO L256 TraceCheckSpWp]: Trace formula consists of 1841 conjuncts, 36 conjuncts are in the unsatisfiable core [2025-01-23 14:51:48,445 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 14:51:48,471 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 14:51:48,530 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 14:51:48,562 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 14:51:48,593 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 14:51:48,616 INFO L134 CoverageAnalysis]: Checked inductivity of 1800 backedges. 385 proven. 66 refuted. 0 times theorem prover too weak. 1349 trivial. 0 not checked. [2025-01-23 14:51:48,616 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 14:51:49,275 INFO L134 CoverageAnalysis]: Checked inductivity of 1800 backedges. 855 proven. 9 refuted. 0 times theorem prover too weak. 936 trivial. 0 not checked. [2025-01-23 14:51:49,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1019383203] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 14:51:49,276 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 14:51:49,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 8, 17] total 43 [2025-01-23 14:51:49,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128431768] [2025-01-23 14:51:49,276 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 14:51:49,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2025-01-23 14:51:49,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 14:51:49,278 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2025-01-23 14:51:49,279 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=605, Invalid=1201, Unknown=0, NotChecked=0, Total=1806 [2025-01-23 14:51:49,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 14:51:49,279 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 14:51:49,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 8.488372093023257) internal successors, (365), 43 states have internal predecessors, (365), 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 14:51:49,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 14:51:49,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 14:51:49,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 14:51:49,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-01-23 14:51:49,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2025-01-23 14:51:49,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2025-01-23 14:51:49,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 14:51:49,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 14:51:49,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 14:51:49,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 14:51:49,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-23 14:51:49,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-01-23 14:51:49,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2025-01-23 14:51:49,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-23 14:51:49,809 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-01-23 14:51:49,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 14:51:49,994 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 14:51:49,994 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 14:51:49,994 INFO L139 ounterexampleChecker]: Examining path program with hash -1055837106, occurence #1 [2025-01-23 14:51:49,995 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 14:51:49,995 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 14:51:49,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 14:51:49,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1303941790, now seen corresponding path program 4 times [2025-01-23 14:51:49,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 14:51:49,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764935786] [2025-01-23 14:51:49,995 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-23 14:51:49,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 14:51:50,107 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 359 statements into 2 equivalence classes. [2025-01-23 14:51:50,496 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 359 of 359 statements. [2025-01-23 14:51:50,497 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-23 14:51:50,497 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 14:51:59,466 INFO L134 CoverageAnalysis]: Checked inductivity of 1888 backedges. 479 proven. 1260 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2025-01-23 14:51:59,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 14:51:59,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764935786] [2025-01-23 14:51:59,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764935786] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 14:51:59,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768210144] [2025-01-23 14:51:59,467 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-23 14:51:59,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 14:51:59,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 14:51:59,469 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 14:51:59,469 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 14:51:59,696 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 359 statements into 2 equivalence classes. [2025-01-23 14:51:59,925 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 359 of 359 statements. [2025-01-23 14:51:59,925 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-23 14:51:59,925 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 14:51:59,934 INFO L256 TraceCheckSpWp]: Trace formula consists of 2354 conjuncts, 87 conjuncts are in the unsatisfiable core [2025-01-23 14:51:59,958 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 14:51:59,970 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 14:52:00,015 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 14:52:00,046 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 14:52:00,129 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 14:52:00,175 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 14:52:00,196 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 14:52:00,237 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 14:52:00,268 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 14:52:00,357 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 14:52:00,416 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 14:52:00,437 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-01-23 14:52:00,460 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 14:52:00,495 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 14:52:00,590 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 14:52:00,674 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 14:52:00,739 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 14:52:00,761 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 14:52:00,803 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 14:52:00,825 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 14:52:00,965 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 32 treesize of output 19 [2025-01-23 14:52:00,993 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 14:52:01,025 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 14:52:01,054 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 14:52:01,079 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 14:52:01,105 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 14:52:01,127 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 14:52:01,153 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 14:52:01,177 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 14:52:01,201 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 14:52:01,237 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 14:52:01,268 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 14:52:01,302 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 14:52:01,336 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 14:52:01,365 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 14:52:01,394 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 14:52:01,423 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 14:52:01,470 INFO L134 CoverageAnalysis]: Checked inductivity of 1888 backedges. 21 proven. 1767 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2025-01-23 14:52:01,470 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 14:52:02,128 INFO L134 CoverageAnalysis]: Checked inductivity of 1888 backedges. 427 proven. 1106 refuted. 0 times theorem prover too weak. 355 trivial. 0 not checked. [2025-01-23 14:52:02,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1768210144] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 14:52:02,128 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 14:52:02,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 39, 24] total 94 [2025-01-23 14:52:02,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690153777] [2025-01-23 14:52:02,129 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 14:52:02,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2025-01-23 14:52:02,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 14:52:02,131 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2025-01-23 14:52:02,134 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2608, Invalid=6134, Unknown=0, NotChecked=0, Total=8742 [2025-01-23 14:52:02,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 14:52:02,134 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 14:52:02,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 94 states have (on average 6.329787234042553) internal successors, (595), 94 states have internal predecessors, (595), 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 14:52:02,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 14:52:02,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 14:52:02,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 14:52:02,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-01-23 14:52:02,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2025-01-23 14:52:02,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 83 states. [2025-01-23 14:52:02,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-01-23 14:52:02,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 14:52:06,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 14:52:06,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 14:52:06,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 14:52:06,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-23 14:52:06,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-01-23 14:52:06,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2025-01-23 14:52:06,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-23 14:52:06,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2025-01-23 14:52:06,053 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 14:52:06,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 14:52:06,243 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 14:52:06,243 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 14:52:06,244 INFO L139 ounterexampleChecker]: Examining path program with hash -1055837106, occurence #2 [2025-01-23 14:52:06,244 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-23 14:52:06,244 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2025-01-23 14:52:06,244 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 14:52:06,244 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-01-23 14:52:06,244 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 14:52:06,244 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2025-01-23 14:52:06,244 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,244 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 31 [2025-01-23 14:52:06,261 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,261 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 35 [2025-01-23 14:52:06,261 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,261 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 43 [2025-01-23 14:52:06,261 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,261 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 56 [2025-01-23 14:52:06,261 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,261 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 64 [2025-01-23 14:52:06,280 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,280 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 81 [2025-01-23 14:52:06,280 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,280 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 95 [2025-01-23 14:52:06,302 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,302 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 99 [2025-01-23 14:52:06,302 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,302 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 107 [2025-01-23 14:52:06,302 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,302 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 120 [2025-01-23 14:52:06,302 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,302 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 128 [2025-01-23 14:52:06,302 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,302 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 129 [2025-01-23 14:52:06,318 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,318 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 148 [2025-01-23 14:52:06,318 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,318 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 153 [2025-01-23 14:52:06,334 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,334 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 157 [2025-01-23 14:52:06,334 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,334 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 165 [2025-01-23 14:52:06,334 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,334 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 178 [2025-01-23 14:52:06,334 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,334 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 186 [2025-01-23 14:52:06,334 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,334 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 187 [2025-01-23 14:52:06,351 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,351 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 206 [2025-01-23 14:52:06,351 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,351 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 211 [2025-01-23 14:52:06,366 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,366 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 215 [2025-01-23 14:52:06,366 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,366 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 223 [2025-01-23 14:52:06,366 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,366 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 236 [2025-01-23 14:52:06,366 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,366 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 244 [2025-01-23 14:52:06,366 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,366 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 245 [2025-01-23 14:52:06,387 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,387 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 257 [2025-01-23 14:52:06,388 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,388 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 259 [2025-01-23 14:52:06,388 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,388 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 264 [2025-01-23 14:52:06,408 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,408 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 283 [2025-01-23 14:52:06,408 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,408 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 289 [2025-01-23 14:52:06,408 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,409 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 295 [2025-01-23 14:52:06,409 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,409 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 300 [2025-01-23 14:52:06,432 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,432 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 304 [2025-01-23 14:52:06,432 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,432 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 312 [2025-01-23 14:52:06,432 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,432 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 325 [2025-01-23 14:52:06,432 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,433 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 333 [2025-01-23 14:52:06,433 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,433 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 334 [2025-01-23 14:52:06,452 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,452 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 339 [2025-01-23 14:52:06,452 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,452 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 345 [2025-01-23 14:52:06,452 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,452 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 351 [2025-01-23 14:52:06,452 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,452 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 357 [2025-01-23 14:52:06,452 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,452 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 363 [2025-01-23 14:52:06,452 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,452 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 369 [2025-01-23 14:52:06,452 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,453 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 375 [2025-01-23 14:52:06,453 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,453 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 381 [2025-01-23 14:52:06,453 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,453 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 387 [2025-01-23 14:52:06,453 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,453 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 393 [2025-01-23 14:52:06,453 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,453 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 399 [2025-01-23 14:52:06,453 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,453 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 405 [2025-01-23 14:52:06,453 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,453 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 411 [2025-01-23 14:52:06,453 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,453 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 417 [2025-01-23 14:52:06,453 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,453 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 423 [2025-01-23 14:52:06,453 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,453 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 429 [2025-01-23 14:52:06,453 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,453 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 435 [2025-01-23 14:52:06,453 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,453 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 441 [2025-01-23 14:52:06,453 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,453 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 447 [2025-01-23 14:52:06,453 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,453 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 453 [2025-01-23 14:52:06,453 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,453 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 459 [2025-01-23 14:52:06,453 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,453 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 465 [2025-01-23 14:52:06,453 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,453 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 471 [2025-01-23 14:52:06,453 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,453 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 477 [2025-01-23 14:52:06,453 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,455 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 483 [2025-01-23 14:52:06,455 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,455 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 489 [2025-01-23 14:52:06,455 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,455 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 495 [2025-01-23 14:52:06,455 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,456 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 501 [2025-01-23 14:52:06,456 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,456 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 507 [2025-01-23 14:52:06,456 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,456 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 513 [2025-01-23 14:52:06,456 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,456 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 519 [2025-01-23 14:52:06,456 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,456 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 525 [2025-01-23 14:52:06,456 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,456 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 531 [2025-01-23 14:52:06,456 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,457 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 537 [2025-01-23 14:52:06,457 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,457 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 543 [2025-01-23 14:52:06,457 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:52:06,457 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-23 14:52:06,457 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 14:52:06,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 14:52:06,457 INFO L85 PathProgramCache]: Analyzing trace with hash 296226934, now seen corresponding path program 5 times [2025-01-23 14:52:06,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 14:52:06,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872882004] [2025-01-23 14:52:06,458 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-23 14:52:06,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 14:52:06,539 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 549 statements into 35 equivalence classes. [2025-01-23 14:52:08,738 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) and asserted 487 of 549 statements. [2025-01-23 14:52:08,739 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2025-01-23 14:52:08,739 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 14:52:15,698 INFO L134 CoverageAnalysis]: Checked inductivity of 5257 backedges. 949 proven. 668 refuted. 0 times theorem prover too weak. 3640 trivial. 0 not checked. [2025-01-23 14:52:15,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 14:52:15,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872882004] [2025-01-23 14:52:15,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872882004] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 14:52:15,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1786873939] [2025-01-23 14:52:15,698 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-23 14:52:15,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 14:52:15,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 14:52:15,700 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 14:52:15,700 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 14:52:16,004 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 549 statements into 35 equivalence classes. Killed by 15