./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.03.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.03.cil-2.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a0f469ae37a514ddca8d0dce53a0af7478c9ef70fff43265912fb6cefbfb3984 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 06:02:07,863 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 06:02:07,911 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 06:02:07,916 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 06:02:07,916 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 06:02:07,938 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 06:02:07,939 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 06:02:07,939 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 06:02:07,939 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 06:02:07,940 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 06:02:07,940 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 06:02:07,940 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 06:02:07,941 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 06:02:07,941 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 06:02:07,941 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 06:02:07,941 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 06:02:07,941 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 06:02:07,941 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 06:02:07,941 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 06:02:07,941 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 06:02:07,941 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 06:02:07,941 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 06:02:07,941 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 06:02:07,941 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 06:02:07,942 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 06:02:07,942 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 06:02:07,942 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 06:02:07,942 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 06:02:07,942 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 06:02:07,942 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 06:02:07,942 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 06:02:07,942 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 06:02:07,942 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 06:02:07,942 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 06:02:07,942 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 06:02:07,942 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 06:02:07,942 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 06:02:07,942 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 06:02:07,942 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 06:02:07,942 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 06:02:07,942 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 06:02:07,942 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 06:02:07,942 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 06:02:07,942 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 06:02:07,942 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 06:02:07,942 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 06:02:07,942 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 06:02:07,942 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 06:02:07,943 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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/UAutomizer-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 -> Automizer 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 -> a0f469ae37a514ddca8d0dce53a0af7478c9ef70fff43265912fb6cefbfb3984 [2025-01-09 06:02:08,155 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 06:02:08,160 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 06:02:08,161 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 06:02:08,162 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 06:02:08,162 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 06:02:08,163 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.03.cil-2.c [2025-01-09 06:02:09,369 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/245e9c60c/fd14f90b43744a75b6b3ddd72edd7506/FLAG4d75214a9 [2025-01-09 06:02:09,691 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 06:02:09,692 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.03.cil-2.c [2025-01-09 06:02:09,706 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/245e9c60c/fd14f90b43744a75b6b3ddd72edd7506/FLAG4d75214a9 [2025-01-09 06:02:09,976 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/245e9c60c/fd14f90b43744a75b6b3ddd72edd7506 [2025-01-09 06:02:09,978 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 06:02:09,979 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 06:02:09,981 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 06:02:09,982 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 06:02:09,984 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 06:02:09,986 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 06:02:09" (1/1) ... [2025-01-09 06:02:09,986 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7382e96d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:02:09, skipping insertion in model container [2025-01-09 06:02:09,986 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 06:02:09" (1/1) ... [2025-01-09 06:02:10,013 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 06:02:10,137 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.03.cil-2.c[913,926] [2025-01-09 06:02:10,176 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.03.cil-2.c[5977,5990] [2025-01-09 06:02:10,220 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 06:02:10,233 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 06:02:10,240 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.03.cil-2.c[913,926] [2025-01-09 06:02:10,258 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.03.cil-2.c[5977,5990] [2025-01-09 06:02:10,285 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 06:02:10,304 INFO L204 MainTranslator]: Completed translation [2025-01-09 06:02:10,305 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:02:10 WrapperNode [2025-01-09 06:02:10,306 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 06:02:10,306 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 06:02:10,306 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 06:02:10,307 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 06:02:10,312 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:02:10" (1/1) ... [2025-01-09 06:02:10,323 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:02:10" (1/1) ... [2025-01-09 06:02:10,353 INFO L138 Inliner]: procedures = 54, calls = 57, calls flagged for inlining = 29, calls inlined = 29, statements flattened = 513 [2025-01-09 06:02:10,356 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 06:02:10,357 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 06:02:10,357 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 06:02:10,357 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 06:02:10,364 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:02:10" (1/1) ... [2025-01-09 06:02:10,365 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:02:10" (1/1) ... [2025-01-09 06:02:10,367 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:02:10" (1/1) ... [2025-01-09 06:02:10,386 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-01-09 06:02:10,387 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:02:10" (1/1) ... [2025-01-09 06:02:10,387 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:02:10" (1/1) ... [2025-01-09 06:02:10,395 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:02:10" (1/1) ... [2025-01-09 06:02:10,396 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:02:10" (1/1) ... [2025-01-09 06:02:10,404 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:02:10" (1/1) ... [2025-01-09 06:02:10,412 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:02:10" (1/1) ... [2025-01-09 06:02:10,413 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:02:10" (1/1) ... [2025-01-09 06:02:10,415 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 06:02:10,419 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 06:02:10,419 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 06:02:10,420 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 06:02:10,420 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:02:10" (1/1) ... [2025-01-09 06:02:10,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 06:02:10,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 06:02:10,455 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 06:02:10,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 06:02:10,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 06:02:10,482 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2025-01-09 06:02:10,482 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2025-01-09 06:02:10,482 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2025-01-09 06:02:10,482 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2025-01-09 06:02:10,482 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2025-01-09 06:02:10,483 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2025-01-09 06:02:10,483 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2025-01-09 06:02:10,483 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2025-01-09 06:02:10,483 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2025-01-09 06:02:10,483 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2025-01-09 06:02:10,483 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2025-01-09 06:02:10,484 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2025-01-09 06:02:10,484 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2025-01-09 06:02:10,484 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2025-01-09 06:02:10,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 06:02:10,485 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2025-01-09 06:02:10,485 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2025-01-09 06:02:10,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 06:02:10,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 06:02:10,486 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2025-01-09 06:02:10,486 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2025-01-09 06:02:10,558 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 06:02:10,560 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 06:02:10,926 INFO L? ?]: Removed 73 outVars from TransFormulas that were not future-live. [2025-01-09 06:02:10,926 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 06:02:10,935 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 06:02:10,936 INFO L312 CfgBuilder]: Removed 10 assume(true) statements. [2025-01-09 06:02:10,936 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 06:02:10 BoogieIcfgContainer [2025-01-09 06:02:10,936 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 06:02:10,938 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 06:02:10,939 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 06:02:10,942 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 06:02:10,942 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 06:02:09" (1/3) ... [2025-01-09 06:02:10,942 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@177aa8f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 06:02:10, skipping insertion in model container [2025-01-09 06:02:10,942 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:02:10" (2/3) ... [2025-01-09 06:02:10,943 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@177aa8f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 06:02:10, skipping insertion in model container [2025-01-09 06:02:10,943 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 06:02:10" (3/3) ... [2025-01-09 06:02:10,943 INFO L128 eAbstractionObserver]: Analyzing ICFG pc_sfifo_1.cil-2+token_ring.03.cil-2.c [2025-01-09 06:02:10,955 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 06:02:10,958 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pc_sfifo_1.cil-2+token_ring.03.cil-2.c that has 10 procedures, 223 locations, 1 initial locations, 10 loop locations, and 2 error locations. [2025-01-09 06:02:11,013 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 06:02:11,023 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=PETRI_NET, 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;@43862eb7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 06:02:11,024 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-01-09 06:02:11,027 INFO L276 IsEmpty]: Start isEmpty. Operand has 223 states, 190 states have (on average 1.5315789473684212) internal successors, (291), 193 states have internal predecessors, (291), 23 states have call successors, (23), 9 states have call predecessors, (23), 9 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2025-01-09 06:02:11,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2025-01-09 06:02:11,036 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 06:02:11,036 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 06:02:11,036 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 06:02:11,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 06:02:11,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1683290461, now seen corresponding path program 1 times [2025-01-09 06:02:11,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 06:02:11,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038775366] [2025-01-09 06:02:11,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:02:11,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 06:02:11,102 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-01-09 06:02:11,121 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-01-09 06:02:11,122 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:02:11,122 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:02:11,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 06:02:11,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 06:02:11,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038775366] [2025-01-09 06:02:11,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038775366] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 06:02:11,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 06:02:11,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 06:02:11,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427332577] [2025-01-09 06:02:11,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 06:02:11,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 06:02:11,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 06:02:11,251 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 06:02:11,251 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 06:02:11,254 INFO L87 Difference]: Start difference. First operand has 223 states, 190 states have (on average 1.5315789473684212) internal successors, (291), 193 states have internal predecessors, (291), 23 states have call successors, (23), 9 states have call predecessors, (23), 9 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-09 06:02:11,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 06:02:11,329 INFO L93 Difference]: Finished difference Result 485 states and 736 transitions. [2025-01-09 06:02:11,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 06:02:11,338 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 41 [2025-01-09 06:02:11,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 06:02:11,347 INFO L225 Difference]: With dead ends: 485 [2025-01-09 06:02:11,350 INFO L226 Difference]: Without dead ends: 268 [2025-01-09 06:02:11,353 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 06:02:11,359 INFO L435 NwaCegarLoop]: 335 mSDtfsCounter, 302 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 06:02:11,359 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 416 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 06:02:11,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2025-01-09 06:02:11,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 264. [2025-01-09 06:02:11,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 225 states have (on average 1.471111111111111) internal successors, (331), 228 states have internal predecessors, (331), 27 states have call successors, (27), 11 states have call predecessors, (27), 10 states have return successors, (29), 25 states have call predecessors, (29), 25 states have call successors, (29) [2025-01-09 06:02:11,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 387 transitions. [2025-01-09 06:02:11,437 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 387 transitions. Word has length 41 [2025-01-09 06:02:11,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 06:02:11,438 INFO L471 AbstractCegarLoop]: Abstraction has 264 states and 387 transitions. [2025-01-09 06:02:11,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-09 06:02:11,438 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 387 transitions. [2025-01-09 06:02:11,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2025-01-09 06:02:11,442 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 06:02:11,442 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 06:02:11,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 06:02:11,443 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 06:02:11,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 06:02:11,443 INFO L85 PathProgramCache]: Analyzing trace with hash -314122895, now seen corresponding path program 1 times [2025-01-09 06:02:11,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 06:02:11,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619689145] [2025-01-09 06:02:11,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:02:11,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 06:02:11,452 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-01-09 06:02:11,459 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-01-09 06:02:11,460 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:02:11,460 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:02:11,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 06:02:11,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 06:02:11,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619689145] [2025-01-09 06:02:11,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619689145] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 06:02:11,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 06:02:11,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 06:02:11,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520256670] [2025-01-09 06:02:11,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 06:02:11,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 06:02:11,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 06:02:11,510 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 06:02:11,510 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 06:02:11,511 INFO L87 Difference]: Start difference. First operand 264 states and 387 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-09 06:02:11,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 06:02:11,541 INFO L93 Difference]: Finished difference Result 457 states and 660 transitions. [2025-01-09 06:02:11,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 06:02:11,541 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 42 [2025-01-09 06:02:11,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 06:02:11,543 INFO L225 Difference]: With dead ends: 457 [2025-01-09 06:02:11,543 INFO L226 Difference]: Without dead ends: 350 [2025-01-09 06:02:11,544 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 06:02:11,544 INFO L435 NwaCegarLoop]: 339 mSDtfsCounter, 66 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 06:02:11,545 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 627 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 06:02:11,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2025-01-09 06:02:11,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 325. [2025-01-09 06:02:11,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 280 states have (on average 1.4607142857142856) internal successors, (409), 283 states have internal predecessors, (409), 30 states have call successors, (30), 14 states have call predecessors, (30), 13 states have return successors, (33), 28 states have call predecessors, (33), 28 states have call successors, (33) [2025-01-09 06:02:11,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 472 transitions. [2025-01-09 06:02:11,570 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 472 transitions. Word has length 42 [2025-01-09 06:02:11,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 06:02:11,570 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 472 transitions. [2025-01-09 06:02:11,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-09 06:02:11,570 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 472 transitions. [2025-01-09 06:02:11,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2025-01-09 06:02:11,571 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 06:02:11,571 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 06:02:11,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 06:02:11,571 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 06:02:11,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 06:02:11,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1387528026, now seen corresponding path program 1 times [2025-01-09 06:02:11,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 06:02:11,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703617546] [2025-01-09 06:02:11,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:02:11,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 06:02:11,582 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-01-09 06:02:11,596 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-01-09 06:02:11,600 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:02:11,600 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:02:11,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 06:02:11,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 06:02:11,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703617546] [2025-01-09 06:02:11,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703617546] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 06:02:11,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 06:02:11,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 06:02:11,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572298585] [2025-01-09 06:02:11,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 06:02:11,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 06:02:11,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 06:02:11,654 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 06:02:11,654 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 06:02:11,654 INFO L87 Difference]: Start difference. First operand 325 states and 472 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-09 06:02:11,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 06:02:11,719 INFO L93 Difference]: Finished difference Result 650 states and 932 transitions. [2025-01-09 06:02:11,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 06:02:11,723 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 43 [2025-01-09 06:02:11,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 06:02:11,727 INFO L225 Difference]: With dead ends: 650 [2025-01-09 06:02:11,727 INFO L226 Difference]: Without dead ends: 482 [2025-01-09 06:02:11,728 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 06:02:11,731 INFO L435 NwaCegarLoop]: 322 mSDtfsCounter, 290 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 06:02:11,732 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 396 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 06:02:11,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2025-01-09 06:02:11,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 470. [2025-01-09 06:02:11,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 407 states have (on average 1.4226044226044225) internal successors, (579), 412 states have internal predecessors, (579), 41 states have call successors, (41), 21 states have call predecessors, (41), 20 states have return successors, (49), 37 states have call predecessors, (49), 39 states have call successors, (49) [2025-01-09 06:02:11,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 669 transitions. [2025-01-09 06:02:11,760 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 669 transitions. Word has length 43 [2025-01-09 06:02:11,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 06:02:11,760 INFO L471 AbstractCegarLoop]: Abstraction has 470 states and 669 transitions. [2025-01-09 06:02:11,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-09 06:02:11,760 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 669 transitions. [2025-01-09 06:02:11,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2025-01-09 06:02:11,762 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 06:02:11,762 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 06:02:11,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 06:02:11,762 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 06:02:11,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 06:02:11,763 INFO L85 PathProgramCache]: Analyzing trace with hash 172239436, now seen corresponding path program 1 times [2025-01-09 06:02:11,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 06:02:11,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962824006] [2025-01-09 06:02:11,763 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:02:11,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 06:02:11,769 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 58 statements into 1 equivalence classes. [2025-01-09 06:02:11,777 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-01-09 06:02:11,777 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:02:11,777 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:02:11,864 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-01-09 06:02:11,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 06:02:11,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962824006] [2025-01-09 06:02:11,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962824006] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 06:02:11,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 06:02:11,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 06:02:11,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190377772] [2025-01-09 06:02:11,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 06:02:11,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 06:02:11,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 06:02:11,865 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 06:02:11,865 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 06:02:11,865 INFO L87 Difference]: Start difference. First operand 470 states and 669 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-09 06:02:11,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 06:02:11,919 INFO L93 Difference]: Finished difference Result 941 states and 1325 transitions. [2025-01-09 06:02:11,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 06:02:11,920 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 58 [2025-01-09 06:02:11,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 06:02:11,924 INFO L225 Difference]: With dead ends: 941 [2025-01-09 06:02:11,925 INFO L226 Difference]: Without dead ends: 628 [2025-01-09 06:02:11,926 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 06:02:11,927 INFO L435 NwaCegarLoop]: 368 mSDtfsCounter, 53 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 06:02:11,927 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 671 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 06:02:11,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2025-01-09 06:02:11,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 628. [2025-01-09 06:02:11,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628 states, 543 states have (on average 1.3720073664825045) internal successors, (745), 548 states have internal predecessors, (745), 55 states have call successors, (55), 29 states have call predecessors, (55), 28 states have return successors, (71), 51 states have call predecessors, (71), 53 states have call successors, (71) [2025-01-09 06:02:11,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 871 transitions. [2025-01-09 06:02:11,963 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 871 transitions. Word has length 58 [2025-01-09 06:02:11,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 06:02:11,963 INFO L471 AbstractCegarLoop]: Abstraction has 628 states and 871 transitions. [2025-01-09 06:02:11,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-09 06:02:11,963 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 871 transitions. [2025-01-09 06:02:11,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2025-01-09 06:02:11,965 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 06:02:11,965 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 06:02:11,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 06:02:11,965 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 06:02:11,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 06:02:11,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1865795455, now seen corresponding path program 1 times [2025-01-09 06:02:11,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 06:02:11,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719842266] [2025-01-09 06:02:11,966 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:02:11,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 06:02:11,978 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-01-09 06:02:11,983 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-01-09 06:02:11,984 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:02:11,984 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:02:12,013 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-01-09 06:02:12,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 06:02:12,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719842266] [2025-01-09 06:02:12,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719842266] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 06:02:12,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 06:02:12,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 06:02:12,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380060924] [2025-01-09 06:02:12,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 06:02:12,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 06:02:12,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 06:02:12,014 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 06:02:12,014 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 06:02:12,014 INFO L87 Difference]: Start difference. First operand 628 states and 871 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-01-09 06:02:12,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 06:02:12,062 INFO L93 Difference]: Finished difference Result 1131 states and 1548 transitions. [2025-01-09 06:02:12,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 06:02:12,063 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 63 [2025-01-09 06:02:12,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 06:02:12,066 INFO L225 Difference]: With dead ends: 1131 [2025-01-09 06:02:12,066 INFO L226 Difference]: Without dead ends: 744 [2025-01-09 06:02:12,068 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 06:02:12,070 INFO L435 NwaCegarLoop]: 318 mSDtfsCounter, 277 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 06:02:12,070 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 392 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 06:02:12,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2025-01-09 06:02:12,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2025-01-09 06:02:12,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 744 states, 645 states have (on average 1.3426356589147286) internal successors, (866), 650 states have internal predecessors, (866), 63 states have call successors, (63), 35 states have call predecessors, (63), 34 states have return successors, (83), 59 states have call predecessors, (83), 61 states have call successors, (83) [2025-01-09 06:02:12,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1012 transitions. [2025-01-09 06:02:12,112 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1012 transitions. Word has length 63 [2025-01-09 06:02:12,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 06:02:12,113 INFO L471 AbstractCegarLoop]: Abstraction has 744 states and 1012 transitions. [2025-01-09 06:02:12,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-01-09 06:02:12,113 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1012 transitions. [2025-01-09 06:02:12,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2025-01-09 06:02:12,114 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 06:02:12,114 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 06:02:12,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 06:02:12,114 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 06:02:12,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 06:02:12,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1960875152, now seen corresponding path program 1 times [2025-01-09 06:02:12,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 06:02:12,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076832557] [2025-01-09 06:02:12,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:02:12,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 06:02:12,126 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-01-09 06:02:12,141 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-01-09 06:02:12,141 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:02:12,141 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:02:12,219 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-09 06:02:12,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 06:02:12,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076832557] [2025-01-09 06:02:12,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076832557] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 06:02:12,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398528643] [2025-01-09 06:02:12,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:02:12,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 06:02:12,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 06:02:12,227 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 06:02:12,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-09 06:02:12,279 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-01-09 06:02:12,312 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-01-09 06:02:12,313 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:02:12,313 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:02:12,314 INFO L256 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-09 06:02:12,317 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 06:02:12,393 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 06:02:12,393 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 06:02:12,429 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-01-09 06:02:12,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1398528643] provided 1 perfect and 1 imperfect interpolant sequences [2025-01-09 06:02:12,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-01-09 06:02:12,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 7 [2025-01-09 06:02:12,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534004544] [2025-01-09 06:02:12,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 06:02:12,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 06:02:12,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 06:02:12,432 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 06:02:12,432 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 06:02:12,433 INFO L87 Difference]: Start difference. First operand 744 states and 1012 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-09 06:02:12,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 06:02:12,557 INFO L93 Difference]: Finished difference Result 794 states and 1074 transitions. [2025-01-09 06:02:12,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 06:02:12,558 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 63 [2025-01-09 06:02:12,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 06:02:12,563 INFO L225 Difference]: With dead ends: 794 [2025-01-09 06:02:12,564 INFO L226 Difference]: Without dead ends: 791 [2025-01-09 06:02:12,565 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-01-09 06:02:12,565 INFO L435 NwaCegarLoop]: 337 mSDtfsCounter, 545 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 06:02:12,566 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [545 Valid, 400 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 06:02:12,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2025-01-09 06:02:12,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 743. [2025-01-09 06:02:12,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 743 states, 645 states have (on average 1.3395348837209302) internal successors, (864), 649 states have internal predecessors, (864), 62 states have call successors, (62), 35 states have call predecessors, (62), 34 states have return successors, (83), 59 states have call predecessors, (83), 61 states have call successors, (83) [2025-01-09 06:02:12,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 743 states and 1009 transitions. [2025-01-09 06:02:12,640 INFO L78 Accepts]: Start accepts. Automaton has 743 states and 1009 transitions. Word has length 63 [2025-01-09 06:02:12,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 06:02:12,640 INFO L471 AbstractCegarLoop]: Abstraction has 743 states and 1009 transitions. [2025-01-09 06:02:12,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-09 06:02:12,640 INFO L276 IsEmpty]: Start isEmpty. Operand 743 states and 1009 transitions. [2025-01-09 06:02:12,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-01-09 06:02:12,641 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 06:02:12,641 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 06:02:12,649 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-09 06:02:12,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 06:02:12,847 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 06:02:12,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 06:02:12,848 INFO L85 PathProgramCache]: Analyzing trace with hash 656885477, now seen corresponding path program 1 times [2025-01-09 06:02:12,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 06:02:12,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352171021] [2025-01-09 06:02:12,849 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:02:12,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 06:02:12,857 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-01-09 06:02:12,865 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-01-09 06:02:12,865 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:02:12,869 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:02:12,932 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-09 06:02:12,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 06:02:12,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352171021] [2025-01-09 06:02:12,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352171021] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 06:02:12,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1472004755] [2025-01-09 06:02:12,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:02:12,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 06:02:12,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 06:02:12,935 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 06:02:12,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-09 06:02:12,981 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-01-09 06:02:13,006 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-01-09 06:02:13,007 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:02:13,007 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:02:13,008 INFO L256 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-09 06:02:13,010 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 06:02:13,223 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 06:02:13,224 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 06:02:13,277 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-01-09 06:02:13,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1472004755] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 06:02:13,278 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 06:02:13,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 4] total 10 [2025-01-09 06:02:13,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956048730] [2025-01-09 06:02:13,278 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 06:02:13,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-09 06:02:13,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 06:02:13,279 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-09 06:02:13,279 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-01-09 06:02:13,279 INFO L87 Difference]: Start difference. First operand 743 states and 1009 transitions. Second operand has 10 states, 10 states have (on average 13.5) internal successors, (135), 10 states have internal predecessors, (135), 7 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2025-01-09 06:02:13,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 06:02:13,581 INFO L93 Difference]: Finished difference Result 1980 states and 2686 transitions. [2025-01-09 06:02:13,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-01-09 06:02:13,581 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.5) internal successors, (135), 10 states have internal predecessors, (135), 7 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) Word has length 64 [2025-01-09 06:02:13,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 06:02:13,587 INFO L225 Difference]: With dead ends: 1980 [2025-01-09 06:02:13,587 INFO L226 Difference]: Without dead ends: 1523 [2025-01-09 06:02:13,589 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=382, Unknown=0, NotChecked=0, Total=462 [2025-01-09 06:02:13,589 INFO L435 NwaCegarLoop]: 394 mSDtfsCounter, 513 mSDsluCounter, 1979 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 2373 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 06:02:13,589 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [513 Valid, 2373 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 06:02:13,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1523 states. [2025-01-09 06:02:13,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1523 to 1078. [2025-01-09 06:02:13,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1078 states, 944 states have (on average 1.3125) internal successors, (1239), 953 states have internal predecessors, (1239), 82 states have call successors, (82), 49 states have call predecessors, (82), 50 states have return successors, (114), 76 states have call predecessors, (114), 81 states have call successors, (114) [2025-01-09 06:02:13,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 1435 transitions. [2025-01-09 06:02:13,669 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 1435 transitions. Word has length 64 [2025-01-09 06:02:13,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 06:02:13,669 INFO L471 AbstractCegarLoop]: Abstraction has 1078 states and 1435 transitions. [2025-01-09 06:02:13,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.5) internal successors, (135), 10 states have internal predecessors, (135), 7 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2025-01-09 06:02:13,670 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 1435 transitions. [2025-01-09 06:02:13,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2025-01-09 06:02:13,672 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 06:02:13,672 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 06:02:13,679 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-01-09 06:02:13,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 06:02:13,873 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 06:02:13,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 06:02:13,874 INFO L85 PathProgramCache]: Analyzing trace with hash -4900814, now seen corresponding path program 1 times [2025-01-09 06:02:13,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 06:02:13,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127464463] [2025-01-09 06:02:13,874 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:02:13,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 06:02:13,881 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-01-09 06:02:13,883 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-01-09 06:02:13,883 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:02:13,883 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:02:13,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 06:02:13,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 06:02:13,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127464463] [2025-01-09 06:02:13,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127464463] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 06:02:13,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 06:02:13,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 06:02:13,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973753968] [2025-01-09 06:02:13,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 06:02:13,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 06:02:13,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 06:02:13,910 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 06:02:13,910 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 06:02:13,910 INFO L87 Difference]: Start difference. First operand 1078 states and 1435 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 06:02:13,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 06:02:13,954 INFO L93 Difference]: Finished difference Result 1219 states and 1645 transitions. [2025-01-09 06:02:13,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 06:02:13,954 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 77 [2025-01-09 06:02:13,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 06:02:13,959 INFO L225 Difference]: With dead ends: 1219 [2025-01-09 06:02:13,959 INFO L226 Difference]: Without dead ends: 1078 [2025-01-09 06:02:13,960 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 06:02:13,960 INFO L435 NwaCegarLoop]: 309 mSDtfsCounter, 215 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 06:02:13,961 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 396 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 06:02:13,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states. [2025-01-09 06:02:13,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 1078. [2025-01-09 06:02:13,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1078 states, 944 states have (on average 1.3114406779661016) internal successors, (1238), 953 states have internal predecessors, (1238), 82 states have call successors, (82), 49 states have call predecessors, (82), 50 states have return successors, (114), 76 states have call predecessors, (114), 81 states have call successors, (114) [2025-01-09 06:02:14,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 1434 transitions. [2025-01-09 06:02:14,003 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 1434 transitions. Word has length 77 [2025-01-09 06:02:14,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 06:02:14,004 INFO L471 AbstractCegarLoop]: Abstraction has 1078 states and 1434 transitions. [2025-01-09 06:02:14,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 06:02:14,004 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 1434 transitions. [2025-01-09 06:02:14,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2025-01-09 06:02:14,006 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 06:02:14,006 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 06:02:14,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-09 06:02:14,006 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 06:02:14,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 06:02:14,007 INFO L85 PathProgramCache]: Analyzing trace with hash 727066612, now seen corresponding path program 1 times [2025-01-09 06:02:14,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 06:02:14,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489184877] [2025-01-09 06:02:14,007 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:02:14,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 06:02:14,012 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-01-09 06:02:14,014 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-01-09 06:02:14,014 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:02:14,014 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:02:14,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 06:02:14,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 06:02:14,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489184877] [2025-01-09 06:02:14,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489184877] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 06:02:14,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 06:02:14,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 06:02:14,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656941464] [2025-01-09 06:02:14,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 06:02:14,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 06:02:14,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 06:02:14,114 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 06:02:14,114 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 06:02:14,114 INFO L87 Difference]: Start difference. First operand 1078 states and 1434 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 06:02:14,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 06:02:14,620 INFO L93 Difference]: Finished difference Result 1368 states and 1874 transitions. [2025-01-09 06:02:14,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 06:02:14,621 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 77 [2025-01-09 06:02:14,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 06:02:14,629 INFO L225 Difference]: With dead ends: 1368 [2025-01-09 06:02:14,629 INFO L226 Difference]: Without dead ends: 1229 [2025-01-09 06:02:14,630 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-09 06:02:14,634 INFO L435 NwaCegarLoop]: 225 mSDtfsCounter, 495 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 510 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 06:02:14,634 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [510 Valid, 739 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 06:02:14,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2025-01-09 06:02:14,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1218. [2025-01-09 06:02:14,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1218 states, 1065 states have (on average 1.336150234741784) internal successors, (1423), 1075 states have internal predecessors, (1423), 94 states have call successors, (94), 55 states have call predecessors, (94), 57 states have return successors, (127), 88 states have call predecessors, (127), 93 states have call successors, (127) [2025-01-09 06:02:14,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1218 states to 1218 states and 1644 transitions. [2025-01-09 06:02:14,734 INFO L78 Accepts]: Start accepts. Automaton has 1218 states and 1644 transitions. Word has length 77 [2025-01-09 06:02:14,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 06:02:14,735 INFO L471 AbstractCegarLoop]: Abstraction has 1218 states and 1644 transitions. [2025-01-09 06:02:14,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 06:02:14,735 INFO L276 IsEmpty]: Start isEmpty. Operand 1218 states and 1644 transitions. [2025-01-09 06:02:14,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2025-01-09 06:02:14,741 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 06:02:14,742 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 06:02:14,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-09 06:02:14,742 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 06:02:14,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 06:02:14,743 INFO L85 PathProgramCache]: Analyzing trace with hash 450218616, now seen corresponding path program 1 times [2025-01-09 06:02:14,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 06:02:14,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359973365] [2025-01-09 06:02:14,743 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:02:14,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 06:02:14,752 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-01-09 06:02:14,755 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-01-09 06:02:14,755 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:02:14,755 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:02:14,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 06:02:14,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 06:02:14,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359973365] [2025-01-09 06:02:14,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359973365] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 06:02:14,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 06:02:14,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 06:02:14,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818532316] [2025-01-09 06:02:14,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 06:02:14,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 06:02:14,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 06:02:14,902 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 06:02:14,902 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 06:02:14,902 INFO L87 Difference]: Start difference. First operand 1218 states and 1644 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 06:02:15,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 06:02:15,570 INFO L93 Difference]: Finished difference Result 1671 states and 2331 transitions. [2025-01-09 06:02:15,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 06:02:15,571 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 77 [2025-01-09 06:02:15,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 06:02:15,580 INFO L225 Difference]: With dead ends: 1671 [2025-01-09 06:02:15,580 INFO L226 Difference]: Without dead ends: 1392 [2025-01-09 06:02:15,585 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-01-09 06:02:15,585 INFO L435 NwaCegarLoop]: 333 mSDtfsCounter, 487 mSDsluCounter, 957 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 502 SdHoareTripleChecker+Valid, 1290 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-09 06:02:15,586 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [502 Valid, 1290 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-09 06:02:15,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1392 states. [2025-01-09 06:02:15,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1392 to 1349. [2025-01-09 06:02:15,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1349 states, 1177 states have (on average 1.35089209855565) internal successors, (1590), 1188 states have internal predecessors, (1590), 106 states have call successors, (106), 61 states have call predecessors, (106), 64 states have return successors, (142), 101 states have call predecessors, (142), 105 states have call successors, (142) [2025-01-09 06:02:15,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1349 states to 1349 states and 1838 transitions. [2025-01-09 06:02:15,720 INFO L78 Accepts]: Start accepts. Automaton has 1349 states and 1838 transitions. Word has length 77 [2025-01-09 06:02:15,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 06:02:15,721 INFO L471 AbstractCegarLoop]: Abstraction has 1349 states and 1838 transitions. [2025-01-09 06:02:15,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 06:02:15,721 INFO L276 IsEmpty]: Start isEmpty. Operand 1349 states and 1838 transitions. [2025-01-09 06:02:15,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2025-01-09 06:02:15,728 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 06:02:15,728 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 06:02:15,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-01-09 06:02:15,728 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 06:02:15,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 06:02:15,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1129490870, now seen corresponding path program 1 times [2025-01-09 06:02:15,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 06:02:15,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32537413] [2025-01-09 06:02:15,730 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:02:15,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 06:02:15,744 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-01-09 06:02:15,746 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-01-09 06:02:15,749 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:02:15,749 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:02:15,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 06:02:15,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 06:02:15,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32537413] [2025-01-09 06:02:15,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32537413] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 06:02:15,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 06:02:15,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 06:02:15,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525386528] [2025-01-09 06:02:15,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 06:02:15,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 06:02:15,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 06:02:15,876 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 06:02:15,876 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 06:02:15,876 INFO L87 Difference]: Start difference. First operand 1349 states and 1838 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 06:02:16,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 06:02:16,167 INFO L93 Difference]: Finished difference Result 1789 states and 2506 transitions. [2025-01-09 06:02:16,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 06:02:16,167 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 77 [2025-01-09 06:02:16,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 06:02:16,173 INFO L225 Difference]: With dead ends: 1789 [2025-01-09 06:02:16,173 INFO L226 Difference]: Without dead ends: 1379 [2025-01-09 06:02:16,174 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-09 06:02:16,175 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 389 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 06:02:16,175 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 555 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 06:02:16,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1379 states. [2025-01-09 06:02:16,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1379 to 1349. [2025-01-09 06:02:16,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1349 states, 1177 states have (on average 1.3483432455395072) internal successors, (1587), 1188 states have internal predecessors, (1587), 106 states have call successors, (106), 61 states have call predecessors, (106), 64 states have return successors, (142), 101 states have call predecessors, (142), 105 states have call successors, (142) [2025-01-09 06:02:16,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1349 states to 1349 states and 1835 transitions. [2025-01-09 06:02:16,252 INFO L78 Accepts]: Start accepts. Automaton has 1349 states and 1835 transitions. Word has length 77 [2025-01-09 06:02:16,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 06:02:16,252 INFO L471 AbstractCegarLoop]: Abstraction has 1349 states and 1835 transitions. [2025-01-09 06:02:16,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 06:02:16,253 INFO L276 IsEmpty]: Start isEmpty. Operand 1349 states and 1835 transitions. [2025-01-09 06:02:16,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2025-01-09 06:02:16,255 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 06:02:16,255 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 06:02:16,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-01-09 06:02:16,255 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 06:02:16,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 06:02:16,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1331314804, now seen corresponding path program 1 times [2025-01-09 06:02:16,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 06:02:16,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053601672] [2025-01-09 06:02:16,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:02:16,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 06:02:16,260 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-01-09 06:02:16,262 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-01-09 06:02:16,262 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:02:16,262 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:02:16,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 06:02:16,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 06:02:16,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053601672] [2025-01-09 06:02:16,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053601672] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 06:02:16,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 06:02:16,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 06:02:16,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950077004] [2025-01-09 06:02:16,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 06:02:16,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 06:02:16,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 06:02:16,310 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 06:02:16,310 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 06:02:16,310 INFO L87 Difference]: Start difference. First operand 1349 states and 1835 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 06:02:16,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 06:02:16,867 INFO L93 Difference]: Finished difference Result 1784 states and 2490 transitions. [2025-01-09 06:02:16,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 06:02:16,868 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 77 [2025-01-09 06:02:16,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 06:02:16,873 INFO L225 Difference]: With dead ends: 1784 [2025-01-09 06:02:16,873 INFO L226 Difference]: Without dead ends: 1374 [2025-01-09 06:02:16,874 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-09 06:02:16,875 INFO L435 NwaCegarLoop]: 207 mSDtfsCounter, 384 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-09 06:02:16,875 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 545 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-09 06:02:16,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1374 states. [2025-01-09 06:02:16,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1374 to 1349. [2025-01-09 06:02:16,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1349 states, 1177 states have (on average 1.3457943925233644) internal successors, (1584), 1188 states have internal predecessors, (1584), 106 states have call successors, (106), 61 states have call predecessors, (106), 64 states have return successors, (142), 101 states have call predecessors, (142), 105 states have call successors, (142) [2025-01-09 06:02:16,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1349 states to 1349 states and 1832 transitions. [2025-01-09 06:02:16,940 INFO L78 Accepts]: Start accepts. Automaton has 1349 states and 1832 transitions. Word has length 77 [2025-01-09 06:02:16,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 06:02:16,941 INFO L471 AbstractCegarLoop]: Abstraction has 1349 states and 1832 transitions. [2025-01-09 06:02:16,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 06:02:16,941 INFO L276 IsEmpty]: Start isEmpty. Operand 1349 states and 1832 transitions. [2025-01-09 06:02:16,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2025-01-09 06:02:16,943 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 06:02:16,943 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 06:02:16,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-01-09 06:02:16,943 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 06:02:16,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 06:02:16,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1892014582, now seen corresponding path program 1 times [2025-01-09 06:02:16,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 06:02:16,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448694965] [2025-01-09 06:02:16,944 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:02:16,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 06:02:16,949 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-01-09 06:02:16,952 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-01-09 06:02:16,953 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:02:16,953 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:02:17,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 06:02:17,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 06:02:17,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448694965] [2025-01-09 06:02:17,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448694965] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 06:02:17,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 06:02:17,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 06:02:17,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490056253] [2025-01-09 06:02:17,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 06:02:17,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 06:02:17,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 06:02:17,041 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 06:02:17,041 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 06:02:17,041 INFO L87 Difference]: Start difference. First operand 1349 states and 1832 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 06:02:17,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 06:02:17,514 INFO L93 Difference]: Finished difference Result 2092 states and 2933 transitions. [2025-01-09 06:02:17,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 06:02:17,515 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 77 [2025-01-09 06:02:17,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 06:02:17,520 INFO L225 Difference]: With dead ends: 2092 [2025-01-09 06:02:17,521 INFO L226 Difference]: Without dead ends: 1682 [2025-01-09 06:02:17,522 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-01-09 06:02:17,522 INFO L435 NwaCegarLoop]: 312 mSDtfsCounter, 485 mSDsluCounter, 893 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 1205 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 06:02:17,522 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [499 Valid, 1205 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 06:02:17,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1682 states. [2025-01-09 06:02:17,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1682 to 1601. [2025-01-09 06:02:17,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1601 states, 1391 states have (on average 1.363767074047448) internal successors, (1897), 1406 states have internal predecessors, (1897), 128 states have call successors, (128), 73 states have call predecessors, (128), 80 states have return successors, (176), 125 states have call predecessors, (176), 127 states have call successors, (176) [2025-01-09 06:02:17,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1601 states to 1601 states and 2201 transitions. [2025-01-09 06:02:17,596 INFO L78 Accepts]: Start accepts. Automaton has 1601 states and 2201 transitions. Word has length 77 [2025-01-09 06:02:17,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 06:02:17,596 INFO L471 AbstractCegarLoop]: Abstraction has 1601 states and 2201 transitions. [2025-01-09 06:02:17,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 06:02:17,596 INFO L276 IsEmpty]: Start isEmpty. Operand 1601 states and 2201 transitions. [2025-01-09 06:02:17,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2025-01-09 06:02:17,598 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 06:02:17,598 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 06:02:17,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-01-09 06:02:17,598 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 06:02:17,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 06:02:17,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1969223628, now seen corresponding path program 1 times [2025-01-09 06:02:17,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 06:02:17,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374598801] [2025-01-09 06:02:17,599 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:02:17,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 06:02:17,603 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-01-09 06:02:17,605 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-01-09 06:02:17,605 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:02:17,605 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:02:17,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 06:02:17,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 06:02:17,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374598801] [2025-01-09 06:02:17,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374598801] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 06:02:17,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 06:02:17,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 06:02:17,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330875756] [2025-01-09 06:02:17,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 06:02:17,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 06:02:17,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 06:02:17,663 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 06:02:17,663 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 06:02:17,664 INFO L87 Difference]: Start difference. First operand 1601 states and 2201 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 06:02:18,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 06:02:18,135 INFO L93 Difference]: Finished difference Result 2876 states and 4092 transitions. [2025-01-09 06:02:18,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 06:02:18,136 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 77 [2025-01-09 06:02:18,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 06:02:18,144 INFO L225 Difference]: With dead ends: 2876 [2025-01-09 06:02:18,144 INFO L226 Difference]: Without dead ends: 2214 [2025-01-09 06:02:18,146 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-01-09 06:02:18,146 INFO L435 NwaCegarLoop]: 310 mSDtfsCounter, 502 mSDsluCounter, 887 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-09 06:02:18,146 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 1197 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-09 06:02:18,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2214 states. [2025-01-09 06:02:18,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2214 to 2122. [2025-01-09 06:02:18,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2122 states, 1832 states have (on average 1.3881004366812226) internal successors, (2543), 1861 states have internal predecessors, (2543), 170 states have call successors, (170), 97 states have call predecessors, (170), 118 states have return successors, (266), 171 states have call predecessors, (266), 169 states have call successors, (266) [2025-01-09 06:02:18,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2122 states to 2122 states and 2979 transitions. [2025-01-09 06:02:18,251 INFO L78 Accepts]: Start accepts. Automaton has 2122 states and 2979 transitions. Word has length 77 [2025-01-09 06:02:18,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 06:02:18,252 INFO L471 AbstractCegarLoop]: Abstraction has 2122 states and 2979 transitions. [2025-01-09 06:02:18,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 06:02:18,252 INFO L276 IsEmpty]: Start isEmpty. Operand 2122 states and 2979 transitions. [2025-01-09 06:02:18,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2025-01-09 06:02:18,254 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 06:02:18,254 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 06:02:18,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-01-09 06:02:18,255 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 06:02:18,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 06:02:18,255 INFO L85 PathProgramCache]: Analyzing trace with hash -708306378, now seen corresponding path program 1 times [2025-01-09 06:02:18,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 06:02:18,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583155148] [2025-01-09 06:02:18,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:02:18,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 06:02:18,259 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-01-09 06:02:18,261 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-01-09 06:02:18,262 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:02:18,262 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:02:18,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 06:02:18,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 06:02:18,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583155148] [2025-01-09 06:02:18,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583155148] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 06:02:18,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 06:02:18,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 06:02:18,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388979786] [2025-01-09 06:02:18,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 06:02:18,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 06:02:18,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 06:02:18,315 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 06:02:18,315 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 06:02:18,315 INFO L87 Difference]: Start difference. First operand 2122 states and 2979 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 06:02:18,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 06:02:18,597 INFO L93 Difference]: Finished difference Result 3363 states and 4844 transitions. [2025-01-09 06:02:18,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 06:02:18,598 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 77 [2025-01-09 06:02:18,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 06:02:18,607 INFO L225 Difference]: With dead ends: 3363 [2025-01-09 06:02:18,607 INFO L226 Difference]: Without dead ends: 2180 [2025-01-09 06:02:18,611 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-09 06:02:18,611 INFO L435 NwaCegarLoop]: 197 mSDtfsCounter, 380 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 06:02:18,611 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 519 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 06:02:18,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2180 states. [2025-01-09 06:02:18,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2180 to 2122. [2025-01-09 06:02:18,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2122 states, 1832 states have (on average 1.3831877729257642) internal successors, (2534), 1861 states have internal predecessors, (2534), 170 states have call successors, (170), 97 states have call predecessors, (170), 118 states have return successors, (266), 171 states have call predecessors, (266), 169 states have call successors, (266) [2025-01-09 06:02:18,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2122 states to 2122 states and 2970 transitions. [2025-01-09 06:02:18,738 INFO L78 Accepts]: Start accepts. Automaton has 2122 states and 2970 transitions. Word has length 77 [2025-01-09 06:02:18,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 06:02:18,738 INFO L471 AbstractCegarLoop]: Abstraction has 2122 states and 2970 transitions. [2025-01-09 06:02:18,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 06:02:18,738 INFO L276 IsEmpty]: Start isEmpty. Operand 2122 states and 2970 transitions. [2025-01-09 06:02:18,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2025-01-09 06:02:18,742 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 06:02:18,742 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 06:02:18,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-01-09 06:02:18,742 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 06:02:18,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 06:02:18,743 INFO L85 PathProgramCache]: Analyzing trace with hash -667631628, now seen corresponding path program 1 times [2025-01-09 06:02:18,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 06:02:18,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941658466] [2025-01-09 06:02:18,743 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:02:18,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 06:02:18,751 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-01-09 06:02:18,754 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-01-09 06:02:18,754 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:02:18,754 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:02:18,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 06:02:18,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 06:02:18,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941658466] [2025-01-09 06:02:18,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941658466] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 06:02:18,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 06:02:18,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 06:02:18,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824288551] [2025-01-09 06:02:18,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 06:02:18,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 06:02:18,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 06:02:18,788 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 06:02:18,788 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 06:02:18,788 INFO L87 Difference]: Start difference. First operand 2122 states and 2970 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 06:02:19,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 06:02:19,064 INFO L93 Difference]: Finished difference Result 3976 states and 5769 transitions. [2025-01-09 06:02:19,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 06:02:19,065 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 77 [2025-01-09 06:02:19,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 06:02:19,075 INFO L225 Difference]: With dead ends: 3976 [2025-01-09 06:02:19,075 INFO L226 Difference]: Without dead ends: 2794 [2025-01-09 06:02:19,078 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 06:02:19,078 INFO L435 NwaCegarLoop]: 489 mSDtfsCounter, 456 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 906 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 06:02:19,078 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 906 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 06:02:19,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2794 states. [2025-01-09 06:02:19,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2794 to 2756. [2025-01-09 06:02:19,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2756 states, 2371 states have (on average 1.3897089835512442) internal successors, (3295), 2411 states have internal predecessors, (3295), 229 states have call successors, (229), 127 states have call predecessors, (229), 154 states have return successors, (338), 225 states have call predecessors, (338), 228 states have call successors, (338) [2025-01-09 06:02:19,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2756 states to 2756 states and 3862 transitions. [2025-01-09 06:02:19,272 INFO L78 Accepts]: Start accepts. Automaton has 2756 states and 3862 transitions. Word has length 77 [2025-01-09 06:02:19,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 06:02:19,272 INFO L471 AbstractCegarLoop]: Abstraction has 2756 states and 3862 transitions. [2025-01-09 06:02:19,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 06:02:19,272 INFO L276 IsEmpty]: Start isEmpty. Operand 2756 states and 3862 transitions. [2025-01-09 06:02:19,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2025-01-09 06:02:19,275 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 06:02:19,275 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 06:02:19,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-01-09 06:02:19,275 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 06:02:19,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 06:02:19,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1994207136, now seen corresponding path program 1 times [2025-01-09 06:02:19,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 06:02:19,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734257233] [2025-01-09 06:02:19,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:02:19,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 06:02:19,280 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes. [2025-01-09 06:02:19,283 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements. [2025-01-09 06:02:19,283 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:02:19,283 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:02:19,317 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2025-01-09 06:02:19,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 06:02:19,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734257233] [2025-01-09 06:02:19,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734257233] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 06:02:19,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2032638641] [2025-01-09 06:02:19,317 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:02:19,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 06:02:19,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 06:02:19,320 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 06:02:19,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-09 06:02:19,359 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes. [2025-01-09 06:02:19,383 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements. [2025-01-09 06:02:19,383 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:02:19,383 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:02:19,384 INFO L256 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 06:02:19,386 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 06:02:19,405 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-01-09 06:02:19,406 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 06:02:19,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2032638641] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 06:02:19,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 06:02:19,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2025-01-09 06:02:19,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088964823] [2025-01-09 06:02:19,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 06:02:19,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 06:02:19,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 06:02:19,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 06:02:19,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 06:02:19,407 INFO L87 Difference]: Start difference. First operand 2756 states and 3862 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-01-09 06:02:19,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 06:02:19,515 INFO L93 Difference]: Finished difference Result 3356 states and 4657 transitions. [2025-01-09 06:02:19,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 06:02:19,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 82 [2025-01-09 06:02:19,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 06:02:19,525 INFO L225 Difference]: With dead ends: 3356 [2025-01-09 06:02:19,525 INFO L226 Difference]: Without dead ends: 2644 [2025-01-09 06:02:19,527 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 06:02:19,527 INFO L435 NwaCegarLoop]: 334 mSDtfsCounter, 269 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 06:02:19,527 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 405 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 06:02:19,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2644 states. [2025-01-09 06:02:19,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2644 to 2635. [2025-01-09 06:02:19,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2635 states, 2264 states have (on average 1.3917844522968197) internal successors, (3151), 2305 states have internal predecessors, (3151), 221 states have call successors, (221), 121 states have call predecessors, (221), 148 states have return successors, (326), 216 states have call predecessors, (326), 220 states have call successors, (326) [2025-01-09 06:02:19,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2635 states to 2635 states and 3698 transitions. [2025-01-09 06:02:19,676 INFO L78 Accepts]: Start accepts. Automaton has 2635 states and 3698 transitions. Word has length 82 [2025-01-09 06:02:19,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 06:02:19,676 INFO L471 AbstractCegarLoop]: Abstraction has 2635 states and 3698 transitions. [2025-01-09 06:02:19,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-01-09 06:02:19,676 INFO L276 IsEmpty]: Start isEmpty. Operand 2635 states and 3698 transitions. [2025-01-09 06:02:19,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2025-01-09 06:02:19,679 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 06:02:19,679 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 06:02:19,686 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-01-09 06:02:19,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 06:02:19,884 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 06:02:19,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 06:02:19,885 INFO L85 PathProgramCache]: Analyzing trace with hash 886109, now seen corresponding path program 1 times [2025-01-09 06:02:19,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 06:02:19,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508905413] [2025-01-09 06:02:19,885 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:02:19,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 06:02:19,892 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-01-09 06:02:19,896 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-01-09 06:02:19,896 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:02:19,896 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:02:19,942 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2025-01-09 06:02:19,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 06:02:19,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508905413] [2025-01-09 06:02:19,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508905413] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 06:02:19,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [662899374] [2025-01-09 06:02:19,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:02:19,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 06:02:19,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 06:02:19,945 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 06:02:19,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-09 06:02:19,989 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-01-09 06:02:20,021 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-01-09 06:02:20,021 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:02:20,022 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:02:20,023 INFO L256 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-09 06:02:20,025 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 06:02:20,042 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-01-09 06:02:20,043 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 06:02:20,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [662899374] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 06:02:20,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 06:02:20,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2025-01-09 06:02:20,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264174301] [2025-01-09 06:02:20,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 06:02:20,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 06:02:20,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 06:02:20,044 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 06:02:20,044 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 06:02:20,044 INFO L87 Difference]: Start difference. First operand 2635 states and 3698 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2025-01-09 06:02:20,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 06:02:20,159 INFO L93 Difference]: Finished difference Result 2981 states and 4133 transitions. [2025-01-09 06:02:20,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 06:02:20,160 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 96 [2025-01-09 06:02:20,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 06:02:20,167 INFO L225 Difference]: With dead ends: 2981 [2025-01-09 06:02:20,167 INFO L226 Difference]: Without dead ends: 1829 [2025-01-09 06:02:20,169 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 06:02:20,169 INFO L435 NwaCegarLoop]: 350 mSDtfsCounter, 60 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 06:02:20,170 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 633 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 06:02:20,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1829 states. [2025-01-09 06:02:20,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1829 to 1829. [2025-01-09 06:02:20,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1829 states, 1554 states have (on average 1.445945945945946) internal successors, (2247), 1586 states have internal predecessors, (2247), 164 states have call successors, (164), 84 states have call predecessors, (164), 110 states have return successors, (241), 166 states have call predecessors, (241), 164 states have call successors, (241) [2025-01-09 06:02:20,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1829 states to 1829 states and 2652 transitions. [2025-01-09 06:02:20,264 INFO L78 Accepts]: Start accepts. Automaton has 1829 states and 2652 transitions. Word has length 96 [2025-01-09 06:02:20,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 06:02:20,264 INFO L471 AbstractCegarLoop]: Abstraction has 1829 states and 2652 transitions. [2025-01-09 06:02:20,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2025-01-09 06:02:20,265 INFO L276 IsEmpty]: Start isEmpty. Operand 1829 states and 2652 transitions. [2025-01-09 06:02:20,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2025-01-09 06:02:20,268 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 06:02:20,268 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 06:02:20,274 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-01-09 06:02:20,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-01-09 06:02:20,469 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 06:02:20,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 06:02:20,469 INFO L85 PathProgramCache]: Analyzing trace with hash -692783483, now seen corresponding path program 1 times [2025-01-09 06:02:20,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 06:02:20,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683322236] [2025-01-09 06:02:20,470 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:02:20,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 06:02:20,476 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 125 statements into 1 equivalence classes. [2025-01-09 06:02:20,480 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 125 of 125 statements. [2025-01-09 06:02:20,480 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:02:20,480 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:02:20,525 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-01-09 06:02:20,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 06:02:20,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683322236] [2025-01-09 06:02:20,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683322236] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 06:02:20,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [303987029] [2025-01-09 06:02:20,526 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:02:20,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 06:02:20,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 06:02:20,528 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 06:02:20,530 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-09 06:02:20,576 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 125 statements into 1 equivalence classes. [2025-01-09 06:02:20,611 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 125 of 125 statements. [2025-01-09 06:02:20,611 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:02:20,611 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:02:20,612 INFO L256 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-09 06:02:20,614 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 06:02:20,679 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-01-09 06:02:20,679 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 06:02:20,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [303987029] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 06:02:20,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 06:02:20,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2025-01-09 06:02:20,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289879536] [2025-01-09 06:02:20,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 06:02:20,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 06:02:20,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 06:02:20,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 06:02:20,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 06:02:20,682 INFO L87 Difference]: Start difference. First operand 1829 states and 2652 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-01-09 06:02:20,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 06:02:20,955 INFO L93 Difference]: Finished difference Result 5390 states and 7874 transitions. [2025-01-09 06:02:20,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 06:02:20,955 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 125 [2025-01-09 06:02:20,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 06:02:20,975 INFO L225 Difference]: With dead ends: 5390 [2025-01-09 06:02:20,975 INFO L226 Difference]: Without dead ends: 3574 [2025-01-09 06:02:20,981 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 06:02:20,981 INFO L435 NwaCegarLoop]: 216 mSDtfsCounter, 172 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 06:02:20,982 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 408 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 06:02:20,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3574 states. [2025-01-09 06:02:21,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3574 to 3558. [2025-01-09 06:02:21,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3558 states, 3027 states have (on average 1.4430128840436076) internal successors, (4368), 3090 states have internal predecessors, (4368), 310 states have call successors, (310), 168 states have call predecessors, (310), 220 states have return successors, (457), 307 states have call predecessors, (457), 310 states have call successors, (457) [2025-01-09 06:02:21,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3558 states to 3558 states and 5135 transitions. [2025-01-09 06:02:21,262 INFO L78 Accepts]: Start accepts. Automaton has 3558 states and 5135 transitions. Word has length 125 [2025-01-09 06:02:21,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 06:02:21,262 INFO L471 AbstractCegarLoop]: Abstraction has 3558 states and 5135 transitions. [2025-01-09 06:02:21,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-01-09 06:02:21,263 INFO L276 IsEmpty]: Start isEmpty. Operand 3558 states and 5135 transitions. [2025-01-09 06:02:21,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2025-01-09 06:02:21,267 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 06:02:21,267 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 06:02:21,278 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-01-09 06:02:21,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 06:02:21,469 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 06:02:21,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 06:02:21,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1126574585, now seen corresponding path program 1 times [2025-01-09 06:02:21,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 06:02:21,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528078019] [2025-01-09 06:02:21,469 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:02:21,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 06:02:21,475 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 125 statements into 1 equivalence classes. [2025-01-09 06:02:21,479 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 125 of 125 statements. [2025-01-09 06:02:21,479 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:02:21,479 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:02:21,527 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-01-09 06:02:21,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 06:02:21,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528078019] [2025-01-09 06:02:21,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528078019] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 06:02:21,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2111136401] [2025-01-09 06:02:21,528 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:02:21,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 06:02:21,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 06:02:21,533 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 06:02:21,538 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-01-09 06:02:21,586 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 125 statements into 1 equivalence classes. [2025-01-09 06:02:21,622 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 125 of 125 statements. [2025-01-09 06:02:21,622 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:02:21,622 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:02:21,624 INFO L256 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-09 06:02:21,626 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 06:02:21,648 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2025-01-09 06:02:21,649 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 06:02:21,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2111136401] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 06:02:21,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 06:02:21,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2025-01-09 06:02:21,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866973508] [2025-01-09 06:02:21,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 06:02:21,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 06:02:21,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 06:02:21,651 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 06:02:21,651 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 06:02:21,651 INFO L87 Difference]: Start difference. First operand 3558 states and 5135 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-01-09 06:02:21,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 06:02:21,948 INFO L93 Difference]: Finished difference Result 10505 states and 15366 transitions. [2025-01-09 06:02:21,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 06:02:21,948 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 125 [2025-01-09 06:02:21,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 06:02:21,980 INFO L225 Difference]: With dead ends: 10505 [2025-01-09 06:02:21,981 INFO L226 Difference]: Without dead ends: 6961 [2025-01-09 06:02:21,989 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 06:02:21,990 INFO L435 NwaCegarLoop]: 413 mSDtfsCounter, 189 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 06:02:21,991 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 629 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 06:02:22,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6961 states. [2025-01-09 06:02:22,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6961 to 6961. [2025-01-09 06:02:22,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6961 states, 5921 states have (on average 1.4369194392839046) internal successors, (8508), 6037 states have internal predecessors, (8508), 599 states have call successors, (599), 336 states have call predecessors, (599), 440 states have return successors, (1012), 603 states have call predecessors, (1012), 599 states have call successors, (1012) [2025-01-09 06:02:22,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6961 states to 6961 states and 10119 transitions. [2025-01-09 06:02:22,453 INFO L78 Accepts]: Start accepts. Automaton has 6961 states and 10119 transitions. Word has length 125 [2025-01-09 06:02:22,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 06:02:22,457 INFO L471 AbstractCegarLoop]: Abstraction has 6961 states and 10119 transitions. [2025-01-09 06:02:22,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-01-09 06:02:22,458 INFO L276 IsEmpty]: Start isEmpty. Operand 6961 states and 10119 transitions. [2025-01-09 06:02:22,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2025-01-09 06:02:22,488 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 06:02:22,488 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 06:02:22,497 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-01-09 06:02:22,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 06:02:22,689 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 06:02:22,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 06:02:22,690 INFO L85 PathProgramCache]: Analyzing trace with hash 141909368, now seen corresponding path program 1 times [2025-01-09 06:02:22,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 06:02:22,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166465415] [2025-01-09 06:02:22,690 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:02:22,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 06:02:22,704 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 163 statements into 1 equivalence classes. [2025-01-09 06:02:22,708 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 163 of 163 statements. [2025-01-09 06:02:22,708 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:02:22,708 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:02:22,765 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2025-01-09 06:02:22,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 06:02:22,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166465415] [2025-01-09 06:02:22,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166465415] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 06:02:22,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [585477305] [2025-01-09 06:02:22,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:02:22,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 06:02:22,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 06:02:22,768 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 06:02:22,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-01-09 06:02:22,823 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 163 statements into 1 equivalence classes. [2025-01-09 06:02:22,866 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 163 of 163 statements. [2025-01-09 06:02:22,867 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:02:22,867 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:02:22,869 INFO L256 TraceCheckSpWp]: Trace formula consists of 587 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-09 06:02:22,871 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 06:02:22,980 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2025-01-09 06:02:22,982 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 06:02:22,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [585477305] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 06:02:22,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 06:02:22,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2025-01-09 06:02:22,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566032723] [2025-01-09 06:02:22,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 06:02:22,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 06:02:22,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 06:02:22,983 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 06:02:22,983 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 06:02:22,983 INFO L87 Difference]: Start difference. First operand 6961 states and 10119 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-01-09 06:02:23,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 06:02:23,975 INFO L93 Difference]: Finished difference Result 20539 states and 30108 transitions. [2025-01-09 06:02:23,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 06:02:23,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 163 [2025-01-09 06:02:23,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 06:02:24,023 INFO L225 Difference]: With dead ends: 20539 [2025-01-09 06:02:24,024 INFO L226 Difference]: Without dead ends: 13597 [2025-01-09 06:02:24,044 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 06:02:24,045 INFO L435 NwaCegarLoop]: 216 mSDtfsCounter, 122 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 06:02:24,046 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 408 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 06:02:24,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13597 states. [2025-01-09 06:02:24,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13597 to 13539. [2025-01-09 06:02:24,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13539 states, 11539 states have (on average 1.4333997746771818) internal successors, (16540), 11769 states have internal predecessors, (16540), 1127 states have call successors, (1127), 664 states have call predecessors, (1127), 872 states have return successors, (1904), 1121 states have call predecessors, (1904), 1127 states have call successors, (1904) [2025-01-09 06:02:25,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13539 states to 13539 states and 19571 transitions. [2025-01-09 06:02:25,063 INFO L78 Accepts]: Start accepts. Automaton has 13539 states and 19571 transitions. Word has length 163 [2025-01-09 06:02:25,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 06:02:25,063 INFO L471 AbstractCegarLoop]: Abstraction has 13539 states and 19571 transitions. [2025-01-09 06:02:25,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-01-09 06:02:25,063 INFO L276 IsEmpty]: Start isEmpty. Operand 13539 states and 19571 transitions. [2025-01-09 06:02:25,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2025-01-09 06:02:25,090 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 06:02:25,090 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 06:02:25,098 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-01-09 06:02:25,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 06:02:25,295 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 06:02:25,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 06:02:25,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1902101128, now seen corresponding path program 1 times [2025-01-09 06:02:25,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 06:02:25,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453773977] [2025-01-09 06:02:25,296 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:02:25,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 06:02:25,303 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 163 statements into 1 equivalence classes. [2025-01-09 06:02:25,306 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 163 of 163 statements. [2025-01-09 06:02:25,306 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:02:25,306 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:02:25,350 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2025-01-09 06:02:25,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 06:02:25,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453773977] [2025-01-09 06:02:25,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453773977] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 06:02:25,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [73413243] [2025-01-09 06:02:25,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:02:25,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 06:02:25,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 06:02:25,353 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 06:02:25,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-01-09 06:02:25,399 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 163 statements into 1 equivalence classes. [2025-01-09 06:02:25,443 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 163 of 163 statements. [2025-01-09 06:02:25,444 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:02:25,444 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:02:25,446 INFO L256 TraceCheckSpWp]: Trace formula consists of 587 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-09 06:02:25,448 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 06:02:25,554 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2025-01-09 06:02:25,554 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 06:02:25,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [73413243] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 06:02:25,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 06:02:25,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2025-01-09 06:02:25,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65130346] [2025-01-09 06:02:25,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 06:02:25,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 06:02:25,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 06:02:25,555 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 06:02:25,555 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 06:02:25,555 INFO L87 Difference]: Start difference. First operand 13539 states and 19571 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-01-09 06:02:27,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 06:02:27,737 INFO L93 Difference]: Finished difference Result 40131 states and 58512 transitions. [2025-01-09 06:02:27,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 06:02:27,737 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 163 [2025-01-09 06:02:27,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 06:02:27,917 INFO L225 Difference]: With dead ends: 40131 [2025-01-09 06:02:27,917 INFO L226 Difference]: Without dead ends: 26611 [2025-01-09 06:02:27,973 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 06:02:27,975 INFO L435 NwaCegarLoop]: 224 mSDtfsCounter, 124 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 06:02:27,975 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 416 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 06:02:27,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26611 states. [2025-01-09 06:02:30,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26611 to 26497. [2025-01-09 06:02:30,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26497 states, 22589 states have (on average 1.4276860418787907) internal successors, (32250), 23047 states have internal predecessors, (32250), 2173 states have call successors, (2173), 1318 states have call predecessors, (2173), 1734 states have return successors, (3672), 2147 states have call predecessors, (3672), 2173 states have call successors, (3672) [2025-01-09 06:02:30,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26497 states to 26497 states and 38095 transitions. [2025-01-09 06:02:30,458 INFO L78 Accepts]: Start accepts. Automaton has 26497 states and 38095 transitions. Word has length 163 [2025-01-09 06:02:30,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 06:02:30,460 INFO L471 AbstractCegarLoop]: Abstraction has 26497 states and 38095 transitions. [2025-01-09 06:02:30,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-01-09 06:02:30,460 INFO L276 IsEmpty]: Start isEmpty. Operand 26497 states and 38095 transitions. [2025-01-09 06:02:30,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2025-01-09 06:02:30,592 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 06:02:30,596 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 06:02:30,613 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-01-09 06:02:30,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 06:02:30,797 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 06:02:30,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 06:02:30,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1071099769, now seen corresponding path program 1 times [2025-01-09 06:02:30,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 06:02:30,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093391350] [2025-01-09 06:02:30,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:02:30,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 06:02:30,814 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 180 statements into 1 equivalence classes. [2025-01-09 06:02:30,826 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 180 of 180 statements. [2025-01-09 06:02:30,828 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:02:30,828 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:02:30,948 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-01-09 06:02:30,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 06:02:30,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093391350] [2025-01-09 06:02:30,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093391350] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 06:02:30,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1923895690] [2025-01-09 06:02:30,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:02:30,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 06:02:30,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 06:02:30,965 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 06:02:30,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-01-09 06:02:31,031 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 180 statements into 1 equivalence classes. [2025-01-09 06:02:31,085 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 180 of 180 statements. [2025-01-09 06:02:31,085 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:02:31,086 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:02:31,089 INFO L256 TraceCheckSpWp]: Trace formula consists of 623 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-09 06:02:31,093 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 06:02:31,182 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-01-09 06:02:31,183 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 06:02:31,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1923895690] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 06:02:31,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 06:02:31,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2025-01-09 06:02:31,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268576756] [2025-01-09 06:02:31,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 06:02:31,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 06:02:31,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 06:02:31,186 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 06:02:31,187 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 06:02:31,187 INFO L87 Difference]: Start difference. First operand 26497 states and 38095 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2025-01-09 06:02:33,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 06:02:33,698 INFO L93 Difference]: Finished difference Result 56407 states and 82168 transitions. [2025-01-09 06:02:33,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 06:02:33,699 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 180 [2025-01-09 06:02:33,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 06:02:33,809 INFO L225 Difference]: With dead ends: 56407 [2025-01-09 06:02:33,809 INFO L226 Difference]: Without dead ends: 29931 [2025-01-09 06:02:33,870 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 06:02:33,871 INFO L435 NwaCegarLoop]: 214 mSDtfsCounter, 147 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 06:02:33,872 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 258 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 06:02:33,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29931 states. [2025-01-09 06:02:35,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29931 to 29931. [2025-01-09 06:02:35,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29931 states, 25739 states have (on average 1.3924394887136253) internal successors, (35840), 26197 states have internal predecessors, (35840), 2259 states have call successors, (2259), 1516 states have call predecessors, (2259), 1932 states have return successors, (3794), 2233 states have call predecessors, (3794), 2259 states have call successors, (3794) [2025-01-09 06:02:36,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29931 states to 29931 states and 41893 transitions. [2025-01-09 06:02:36,028 INFO L78 Accepts]: Start accepts. Automaton has 29931 states and 41893 transitions. Word has length 180 [2025-01-09 06:02:36,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 06:02:36,029 INFO L471 AbstractCegarLoop]: Abstraction has 29931 states and 41893 transitions. [2025-01-09 06:02:36,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2025-01-09 06:02:36,029 INFO L276 IsEmpty]: Start isEmpty. Operand 29931 states and 41893 transitions. [2025-01-09 06:02:36,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2025-01-09 06:02:36,075 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 06:02:36,075 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 06:02:36,093 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-01-09 06:02:36,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 06:02:36,276 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 06:02:36,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 06:02:36,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1024665175, now seen corresponding path program 1 times [2025-01-09 06:02:36,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 06:02:36,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391251758] [2025-01-09 06:02:36,277 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:02:36,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 06:02:36,286 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 180 statements into 1 equivalence classes. [2025-01-09 06:02:36,289 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 180 of 180 statements. [2025-01-09 06:02:36,289 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:02:36,290 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:02:36,351 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-01-09 06:02:36,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 06:02:36,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391251758] [2025-01-09 06:02:36,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391251758] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 06:02:36,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770380874] [2025-01-09 06:02:36,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:02:36,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 06:02:36,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 06:02:36,354 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 06:02:36,356 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-01-09 06:02:36,410 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 180 statements into 1 equivalence classes. [2025-01-09 06:02:36,464 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 180 of 180 statements. [2025-01-09 06:02:36,465 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:02:36,465 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:02:36,467 INFO L256 TraceCheckSpWp]: Trace formula consists of 620 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 06:02:36,470 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 06:02:36,515 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2025-01-09 06:02:36,518 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 06:02:36,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1770380874] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 06:02:36,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 06:02:36,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2025-01-09 06:02:36,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060006671] [2025-01-09 06:02:36,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 06:02:36,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 06:02:36,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 06:02:36,520 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 06:02:36,520 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 06:02:36,520 INFO L87 Difference]: Start difference. First operand 29931 states and 41893 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2025-01-09 06:02:38,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 06:02:38,220 INFO L93 Difference]: Finished difference Result 52623 states and 73274 transitions. [2025-01-09 06:02:38,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 06:02:38,221 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 180 [2025-01-09 06:02:38,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 06:02:38,326 INFO L225 Difference]: With dead ends: 52623 [2025-01-09 06:02:38,327 INFO L226 Difference]: Without dead ends: 32087 [2025-01-09 06:02:38,368 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 06:02:38,369 INFO L435 NwaCegarLoop]: 269 mSDtfsCounter, 157 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 06:02:38,369 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 470 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 06:02:38,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32087 states. [2025-01-09 06:02:40,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32087 to 31991. [2025-01-09 06:02:40,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31991 states, 27615 states have (on average 1.3657794676806083) internal successors, (37716), 28073 states have internal predecessors, (37716), 2311 states have call successors, (2311), 1648 states have call predecessors, (2311), 2064 states have return successors, (3978), 2285 states have call predecessors, (3978), 2311 states have call successors, (3978) [2025-01-09 06:02:40,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31991 states to 31991 states and 44005 transitions. [2025-01-09 06:02:40,562 INFO L78 Accepts]: Start accepts. Automaton has 31991 states and 44005 transitions. Word has length 180 [2025-01-09 06:02:40,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 06:02:40,562 INFO L471 AbstractCegarLoop]: Abstraction has 31991 states and 44005 transitions. [2025-01-09 06:02:40,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2025-01-09 06:02:40,563 INFO L276 IsEmpty]: Start isEmpty. Operand 31991 states and 44005 transitions. [2025-01-09 06:02:40,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2025-01-09 06:02:40,607 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 06:02:40,607 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 06:02:40,614 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-01-09 06:02:40,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2025-01-09 06:02:40,808 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 06:02:40,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 06:02:40,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1429814469, now seen corresponding path program 1 times [2025-01-09 06:02:40,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 06:02:40,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96469521] [2025-01-09 06:02:40,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:02:40,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 06:02:40,817 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 181 statements into 1 equivalence classes. [2025-01-09 06:02:40,821 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 181 of 181 statements. [2025-01-09 06:02:40,822 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:02:40,822 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:02:40,879 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-01-09 06:02:40,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 06:02:40,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96469521] [2025-01-09 06:02:40,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96469521] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 06:02:40,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [303248335] [2025-01-09 06:02:40,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:02:40,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 06:02:40,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 06:02:40,882 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 06:02:40,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-01-09 06:02:40,931 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 181 statements into 1 equivalence classes. [2025-01-09 06:02:40,978 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 181 of 181 statements. [2025-01-09 06:02:40,978 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:02:40,978 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:02:40,981 INFO L256 TraceCheckSpWp]: Trace formula consists of 621 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-09 06:02:40,983 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 06:02:41,007 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2025-01-09 06:02:41,008 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 06:02:41,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [303248335] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 06:02:41,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 06:02:41,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2025-01-09 06:02:41,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370585744] [2025-01-09 06:02:41,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 06:02:41,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 06:02:41,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 06:02:41,009 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 06:02:41,009 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 06:02:41,010 INFO L87 Difference]: Start difference. First operand 31991 states and 44005 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-01-09 06:02:44,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 06:02:44,178 INFO L93 Difference]: Finished difference Result 63779 states and 88605 transitions. [2025-01-09 06:02:44,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 06:02:44,179 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 181 [2025-01-09 06:02:44,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 06:02:44,350 INFO L225 Difference]: With dead ends: 63779 [2025-01-09 06:02:44,351 INFO L226 Difference]: Without dead ends: 45681 [2025-01-09 06:02:44,391 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 06:02:44,391 INFO L435 NwaCegarLoop]: 395 mSDtfsCounter, 168 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 06:02:44,391 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 609 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 06:02:44,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45681 states. [2025-01-09 06:02:46,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45681 to 45679. [2025-01-09 06:02:46,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45679 states, 39343 states have (on average 1.3656304806445874) internal successors, (53728), 40029 states have internal predecessors, (53728), 3351 states have call successors, (3351), 2360 states have call predecessors, (3351), 2984 states have return successors, (6366), 3305 states have call predecessors, (6366), 3351 states have call successors, (6366) [2025-01-09 06:02:46,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45679 states to 45679 states and 63445 transitions. [2025-01-09 06:02:46,978 INFO L78 Accepts]: Start accepts. Automaton has 45679 states and 63445 transitions. Word has length 181 [2025-01-09 06:02:46,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 06:02:46,979 INFO L471 AbstractCegarLoop]: Abstraction has 45679 states and 63445 transitions. [2025-01-09 06:02:46,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-01-09 06:02:46,979 INFO L276 IsEmpty]: Start isEmpty. Operand 45679 states and 63445 transitions. [2025-01-09 06:02:47,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2025-01-09 06:02:47,050 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 06:02:47,050 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 06:02:47,057 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-01-09 06:02:47,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2025-01-09 06:02:47,255 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 06:02:47,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 06:02:47,256 INFO L85 PathProgramCache]: Analyzing trace with hash -421884594, now seen corresponding path program 1 times [2025-01-09 06:02:47,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 06:02:47,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838886677] [2025-01-09 06:02:47,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:02:47,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 06:02:47,264 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 182 statements into 1 equivalence classes. [2025-01-09 06:02:47,267 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 182 of 182 statements. [2025-01-09 06:02:47,267 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:02:47,267 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:02:47,314 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2025-01-09 06:02:47,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 06:02:47,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838886677] [2025-01-09 06:02:47,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838886677] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 06:02:47,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [168731398] [2025-01-09 06:02:47,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:02:47,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 06:02:47,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 06:02:47,318 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 06:02:47,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-01-09 06:02:47,371 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 182 statements into 1 equivalence classes. [2025-01-09 06:02:47,421 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 182 of 182 statements. [2025-01-09 06:02:47,421 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:02:47,421 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 06:02:47,424 INFO L256 TraceCheckSpWp]: Trace formula consists of 626 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 06:02:47,426 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 06:02:47,465 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2025-01-09 06:02:47,466 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 06:02:47,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [168731398] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 06:02:47,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 06:02:47,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2025-01-09 06:02:47,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544427175] [2025-01-09 06:02:47,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 06:02:47,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 06:02:47,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 06:02:47,468 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 06:02:47,468 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 06:02:47,468 INFO L87 Difference]: Start difference. First operand 45679 states and 63445 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9)