./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-4.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 e4b2a28a2509ad3d68be39a714508322f11f55ff3b91cb7a6ce10ff6c38462d6 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 08:46:05,770 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 08:46:05,841 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 08:46:05,847 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 08:46:05,848 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 08:46:05,873 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 08:46:05,874 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 08:46:05,875 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 08:46:05,875 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 08:46:05,877 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 08:46:05,877 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 08:46:05,878 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 08:46:05,878 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 08:46:05,878 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 08:46:05,881 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 08:46:05,882 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 08:46:05,882 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 08:46:05,882 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 08:46:05,883 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 08:46:05,883 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 08:46:05,883 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 08:46:05,883 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 08:46:05,884 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 08:46:05,884 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 08:46:05,884 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 08:46:05,884 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 08:46:05,884 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 08:46:05,885 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 08:46:05,885 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 08:46:05,885 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 08:46:05,885 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 08:46:05,885 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 08:46:05,885 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 08:46:05,886 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 08:46:05,886 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 08:46:05,886 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 08:46:05,888 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 08:46:05,888 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 08:46:05,888 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 08:46:05,889 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 08:46:05,889 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 08:46:05,890 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 08:46:05,890 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4b2a28a2509ad3d68be39a714508322f11f55ff3b91cb7a6ce10ff6c38462d6 [2024-11-20 08:46:06,148 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 08:46:06,176 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 08:46:06,179 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 08:46:06,180 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 08:46:06,181 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 08:46:06,182 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-4.i [2024-11-20 08:46:07,648 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 08:46:07,871 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 08:46:07,872 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-4.i [2024-11-20 08:46:07,885 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b176b35a/9737ab8ea6bc498e98c7baa86243aa4f/FLAG683486aeb [2024-11-20 08:46:07,902 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b176b35a/9737ab8ea6bc498e98c7baa86243aa4f [2024-11-20 08:46:07,905 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 08:46:07,907 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 08:46:07,911 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 08:46:07,911 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 08:46:07,917 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 08:46:07,917 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:46:07" (1/1) ... [2024-11-20 08:46:07,920 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e914136 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:46:07, skipping insertion in model container [2024-11-20 08:46:07,920 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:46:07" (1/1) ... [2024-11-20 08:46:07,954 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 08:46:08,192 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-4.i[915,928] [2024-11-20 08:46:08,310 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 08:46:08,327 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 08:46:08,338 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-4.i[915,928] [2024-11-20 08:46:08,381 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 08:46:08,412 INFO L204 MainTranslator]: Completed translation [2024-11-20 08:46:08,413 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:46:08 WrapperNode [2024-11-20 08:46:08,413 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 08:46:08,414 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 08:46:08,415 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 08:46:08,415 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 08:46:08,422 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:46:08" (1/1) ... [2024-11-20 08:46:08,439 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:46:08" (1/1) ... [2024-11-20 08:46:08,484 INFO L138 Inliner]: procedures = 29, calls = 169, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 525 [2024-11-20 08:46:08,485 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 08:46:08,485 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 08:46:08,486 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 08:46:08,486 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 08:46:08,501 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:46:08" (1/1) ... [2024-11-20 08:46:08,501 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:46:08" (1/1) ... [2024-11-20 08:46:08,513 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:46:08" (1/1) ... [2024-11-20 08:46:08,552 INFO L175 MemorySlicer]: Split 130 memory accesses to 14 slices as follows [2, 3, 11, 9, 13, 18, 14, 6, 8, 8, 11, 11, 6, 10]. 14 percent of accesses are in the largest equivalence class. The 15 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 15 writes are split as follows [0, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 1, 1, 1]. [2024-11-20 08:46:08,553 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:46:08" (1/1) ... [2024-11-20 08:46:08,553 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:46:08" (1/1) ... [2024-11-20 08:46:08,579 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:46:08" (1/1) ... [2024-11-20 08:46:08,586 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:46:08" (1/1) ... [2024-11-20 08:46:08,595 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:46:08" (1/1) ... [2024-11-20 08:46:08,603 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:46:08" (1/1) ... [2024-11-20 08:46:08,620 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 08:46:08,621 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 08:46:08,624 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 08:46:08,624 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 08:46:08,625 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:46:08" (1/1) ... [2024-11-20 08:46:08,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 08:46:08,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 08:46:08,660 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 08:46:08,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 08:46:08,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 08:46:08,713 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-20 08:46:08,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-20 08:46:08,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-20 08:46:08,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-20 08:46:08,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-20 08:46:08,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-20 08:46:08,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-11-20 08:46:08,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-11-20 08:46:08,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2024-11-20 08:46:08,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#9 [2024-11-20 08:46:08,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#10 [2024-11-20 08:46:08,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#11 [2024-11-20 08:46:08,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#12 [2024-11-20 08:46:08,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#13 [2024-11-20 08:46:08,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 08:46:08,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 08:46:08,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-20 08:46:08,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-20 08:46:08,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-20 08:46:08,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-20 08:46:08,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-20 08:46:08,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-20 08:46:08,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-20 08:46:08,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-20 08:46:08,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-20 08:46:08,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-20 08:46:08,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-20 08:46:08,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-20 08:46:08,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-20 08:46:08,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-20 08:46:08,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-20 08:46:08,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-20 08:46:08,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-20 08:46:08,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-20 08:46:08,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-11-20 08:46:08,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2024-11-20 08:46:08,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2024-11-20 08:46:08,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#9 [2024-11-20 08:46:08,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#10 [2024-11-20 08:46:08,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#11 [2024-11-20 08:46:08,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#12 [2024-11-20 08:46:08,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#13 [2024-11-20 08:46:08,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 08:46:08,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 08:46:08,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-20 08:46:08,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-20 08:46:08,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-20 08:46:08,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-20 08:46:08,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-20 08:46:08,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-20 08:46:08,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-20 08:46:08,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-20 08:46:08,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-20 08:46:08,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-20 08:46:08,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-20 08:46:08,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-20 08:46:08,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-20 08:46:08,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-20 08:46:08,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-20 08:46:08,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-20 08:46:08,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-20 08:46:08,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-11-20 08:46:08,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2024-11-20 08:46:08,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#7 [2024-11-20 08:46:08,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#8 [2024-11-20 08:46:08,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#9 [2024-11-20 08:46:08,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#10 [2024-11-20 08:46:08,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#11 [2024-11-20 08:46:08,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#12 [2024-11-20 08:46:08,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#13 [2024-11-20 08:46:08,728 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 08:46:08,728 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 08:46:08,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 08:46:08,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 08:46:08,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-20 08:46:08,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-20 08:46:08,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-20 08:46:08,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-20 08:46:08,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-20 08:46:08,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-20 08:46:08,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-20 08:46:08,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-20 08:46:08,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-20 08:46:08,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-20 08:46:08,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-20 08:46:08,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-20 08:46:08,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 08:46:08,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 08:46:08,963 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 08:46:08,965 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 08:46:09,525 INFO L? ?]: Removed 144 outVars from TransFormulas that were not future-live. [2024-11-20 08:46:09,525 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 08:46:09,546 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 08:46:09,547 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 08:46:09,547 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:46:09 BoogieIcfgContainer [2024-11-20 08:46:09,547 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 08:46:09,549 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 08:46:09,549 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 08:46:09,553 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 08:46:09,554 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:46:07" (1/3) ... [2024-11-20 08:46:09,555 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8dc0aa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:46:09, skipping insertion in model container [2024-11-20 08:46:09,555 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:46:08" (2/3) ... [2024-11-20 08:46:09,555 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8dc0aa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:46:09, skipping insertion in model container [2024-11-20 08:46:09,556 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:46:09" (3/3) ... [2024-11-20 08:46:09,557 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-4.i [2024-11-20 08:46:09,572 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 08:46:09,573 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 08:46:09,642 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 08:46:09,648 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;@112d3d28, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 08:46:09,649 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 08:46:09,653 INFO L276 IsEmpty]: Start isEmpty. Operand has 110 states, 92 states have (on average 1.423913043478261) internal successors, (131), 93 states have internal predecessors, (131), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-20 08:46:09,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-20 08:46:09,666 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:46:09,667 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:46:09,667 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:46:09,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:46:09,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1790010152, now seen corresponding path program 1 times [2024-11-20 08:46:09,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:46:09,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646180164] [2024-11-20 08:46:09,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:46:09,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:46:09,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:10,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:46:10,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:10,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:46:10,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:10,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:46:10,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:10,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:46:10,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:10,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:46:10,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:10,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:46:10,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:10,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:46:10,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:10,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 08:46:10,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:10,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:46:10,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:10,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 08:46:10,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:10,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-20 08:46:10,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:10,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:46:10,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:10,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:46:10,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:10,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:46:10,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:10,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:46:10,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:10,247 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-20 08:46:10,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:46:10,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646180164] [2024-11-20 08:46:10,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646180164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:46:10,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:46:10,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 08:46:10,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005072841] [2024-11-20 08:46:10,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:46:10,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 08:46:10,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:46:10,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 08:46:10,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 08:46:10,292 INFO L87 Difference]: Start difference. First operand has 110 states, 92 states have (on average 1.423913043478261) internal successors, (131), 93 states have internal predecessors, (131), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-20 08:46:10,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:46:10,334 INFO L93 Difference]: Finished difference Result 213 states and 331 transitions. [2024-11-20 08:46:10,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 08:46:10,337 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 130 [2024-11-20 08:46:10,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:46:10,346 INFO L225 Difference]: With dead ends: 213 [2024-11-20 08:46:10,346 INFO L226 Difference]: Without dead ends: 106 [2024-11-20 08:46:10,350 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 08:46:10,354 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:46:10,356 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:46:10,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-20 08:46:10,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2024-11-20 08:46:10,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 89 states have (on average 1.3932584269662922) internal successors, (124), 89 states have internal predecessors, (124), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-20 08:46:10,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 154 transitions. [2024-11-20 08:46:10,409 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 154 transitions. Word has length 130 [2024-11-20 08:46:10,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:46:10,410 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 154 transitions. [2024-11-20 08:46:10,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-20 08:46:10,410 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 154 transitions. [2024-11-20 08:46:10,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-20 08:46:10,415 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:46:10,415 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:46:10,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 08:46:10,416 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:46:10,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:46:10,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1285386362, now seen corresponding path program 1 times [2024-11-20 08:46:10,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:46:10,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76010921] [2024-11-20 08:46:10,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:46:10,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:46:10,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:10,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:46:10,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:10,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:46:10,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:10,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:46:10,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:10,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:46:10,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:10,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:46:10,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:10,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:46:10,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:10,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:46:10,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:10,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 08:46:10,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:10,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:46:10,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:10,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 08:46:10,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:10,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-20 08:46:10,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:10,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:46:10,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:10,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:46:10,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:10,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:46:10,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:10,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:46:10,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:10,779 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-20 08:46:10,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:46:10,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76010921] [2024-11-20 08:46:10,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76010921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:46:10,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:46:10,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 08:46:10,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725342987] [2024-11-20 08:46:10,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:46:10,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 08:46:10,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:46:10,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 08:46:10,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 08:46:10,787 INFO L87 Difference]: Start difference. First operand 106 states and 154 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-20 08:46:10,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:46:10,850 INFO L93 Difference]: Finished difference Result 211 states and 308 transitions. [2024-11-20 08:46:10,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 08:46:10,851 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 130 [2024-11-20 08:46:10,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:46:10,853 INFO L225 Difference]: With dead ends: 211 [2024-11-20 08:46:10,853 INFO L226 Difference]: Without dead ends: 108 [2024-11-20 08:46:10,854 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 08:46:10,855 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 0 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:46:10,856 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 445 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:46:10,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-20 08:46:10,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2024-11-20 08:46:10,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 91 states have (on average 1.3846153846153846) internal successors, (126), 91 states have internal predecessors, (126), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-20 08:46:10,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 156 transitions. [2024-11-20 08:46:10,868 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 156 transitions. Word has length 130 [2024-11-20 08:46:10,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:46:10,869 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 156 transitions. [2024-11-20 08:46:10,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-20 08:46:10,870 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 156 transitions. [2024-11-20 08:46:10,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-20 08:46:10,872 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:46:10,872 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:46:10,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 08:46:10,873 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:46:10,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:46:10,873 INFO L85 PathProgramCache]: Analyzing trace with hash 398163516, now seen corresponding path program 1 times [2024-11-20 08:46:10,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:46:10,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004695031] [2024-11-20 08:46:10,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:46:10,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:46:10,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:11,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:46:11,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:11,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:46:11,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:11,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:46:11,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:11,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:46:11,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:11,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:46:11,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:11,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:46:11,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:11,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:46:11,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:11,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 08:46:11,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:11,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:46:11,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:11,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 08:46:11,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:11,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-20 08:46:11,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:11,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:46:11,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:11,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:46:11,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:11,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:46:11,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:11,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:46:11,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:11,209 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-20 08:46:11,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:46:11,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004695031] [2024-11-20 08:46:11,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004695031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:46:11,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:46:11,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 08:46:11,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302309947] [2024-11-20 08:46:11,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:46:11,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 08:46:11,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:46:11,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 08:46:11,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 08:46:11,213 INFO L87 Difference]: Start difference. First operand 108 states and 156 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-20 08:46:11,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:46:11,254 INFO L93 Difference]: Finished difference Result 216 states and 313 transitions. [2024-11-20 08:46:11,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 08:46:11,255 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 130 [2024-11-20 08:46:11,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:46:11,257 INFO L225 Difference]: With dead ends: 216 [2024-11-20 08:46:11,257 INFO L226 Difference]: Without dead ends: 111 [2024-11-20 08:46:11,258 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 08:46:11,259 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 1 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:46:11,259 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 444 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:46:11,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-20 08:46:11,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 110. [2024-11-20 08:46:11,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 93 states have (on average 1.3763440860215055) internal successors, (128), 93 states have internal predecessors, (128), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-20 08:46:11,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 158 transitions. [2024-11-20 08:46:11,269 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 158 transitions. Word has length 130 [2024-11-20 08:46:11,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:46:11,270 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 158 transitions. [2024-11-20 08:46:11,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-20 08:46:11,271 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 158 transitions. [2024-11-20 08:46:11,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-20 08:46:11,273 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:46:11,273 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:46:11,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 08:46:11,275 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:46:11,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:46:11,275 INFO L85 PathProgramCache]: Analyzing trace with hash 400010558, now seen corresponding path program 1 times [2024-11-20 08:46:11,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:46:11,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221854246] [2024-11-20 08:46:11,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:46:11,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:46:11,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:12,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:46:12,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:12,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:46:12,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:12,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:46:12,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:12,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:46:12,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:12,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:46:12,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:12,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:46:12,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:12,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:46:12,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:12,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 08:46:12,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:12,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:46:12,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:12,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 08:46:12,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:12,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-20 08:46:12,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:12,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:46:12,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:12,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:46:12,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:12,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:46:12,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:12,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:46:12,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:12,780 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-20 08:46:12,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:46:12,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221854246] [2024-11-20 08:46:12,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221854246] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:46:12,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:46:12,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 08:46:12,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102472429] [2024-11-20 08:46:12,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:46:12,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 08:46:12,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:46:12,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 08:46:12,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-20 08:46:12,788 INFO L87 Difference]: Start difference. First operand 110 states and 158 transitions. Second operand has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 states have internal predecessors, (58), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-20 08:46:13,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:46:13,536 INFO L93 Difference]: Finished difference Result 360 states and 514 transitions. [2024-11-20 08:46:13,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 08:46:13,537 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 states have internal predecessors, (58), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 130 [2024-11-20 08:46:13,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:46:13,539 INFO L225 Difference]: With dead ends: 360 [2024-11-20 08:46:13,540 INFO L226 Difference]: Without dead ends: 253 [2024-11-20 08:46:13,544 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2024-11-20 08:46:13,545 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 656 mSDsluCounter, 875 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 656 SdHoareTripleChecker+Valid, 1095 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 08:46:13,545 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [656 Valid, 1095 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 08:46:13,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2024-11-20 08:46:13,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 230. [2024-11-20 08:46:13,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 190 states have (on average 1.3526315789473684) internal successors, (257), 192 states have internal predecessors, (257), 35 states have call successors, (35), 4 states have call predecessors, (35), 4 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-20 08:46:13,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 327 transitions. [2024-11-20 08:46:13,583 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 327 transitions. Word has length 130 [2024-11-20 08:46:13,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:46:13,584 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 327 transitions. [2024-11-20 08:46:13,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 states have internal predecessors, (58), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-20 08:46:13,585 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 327 transitions. [2024-11-20 08:46:13,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-20 08:46:13,588 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:46:13,588 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:46:13,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 08:46:13,589 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:46:13,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:46:13,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1101075136, now seen corresponding path program 1 times [2024-11-20 08:46:13,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:46:13,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135842459] [2024-11-20 08:46:13,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:46:13,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:46:13,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:13,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:46:13,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:13,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:46:13,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:13,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:46:13,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:13,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:46:13,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:13,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:46:13,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:13,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:46:13,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:13,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:46:13,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:13,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 08:46:13,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:13,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:46:13,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:13,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 08:46:13,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:13,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-20 08:46:13,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:13,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:46:13,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:13,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:46:13,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:13,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:46:13,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:13,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:46:13,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:13,809 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-20 08:46:13,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:46:13,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135842459] [2024-11-20 08:46:13,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135842459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:46:13,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:46:13,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 08:46:13,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091893873] [2024-11-20 08:46:13,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:46:13,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 08:46:13,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:46:13,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 08:46:13,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 08:46:13,813 INFO L87 Difference]: Start difference. First operand 230 states and 327 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-20 08:46:13,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:46:13,844 INFO L93 Difference]: Finished difference Result 446 states and 638 transitions. [2024-11-20 08:46:13,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 08:46:13,845 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 130 [2024-11-20 08:46:13,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:46:13,848 INFO L225 Difference]: With dead ends: 446 [2024-11-20 08:46:13,849 INFO L226 Difference]: Without dead ends: 234 [2024-11-20 08:46:13,849 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 08:46:13,851 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 0 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:46:13,851 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 446 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:46:13,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2024-11-20 08:46:13,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2024-11-20 08:46:13,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 194 states have (on average 1.3453608247422681) internal successors, (261), 196 states have internal predecessors, (261), 35 states have call successors, (35), 4 states have call predecessors, (35), 4 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-20 08:46:13,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 331 transitions. [2024-11-20 08:46:13,876 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 331 transitions. Word has length 130 [2024-11-20 08:46:13,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:46:13,877 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 331 transitions. [2024-11-20 08:46:13,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-20 08:46:13,878 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 331 transitions. [2024-11-20 08:46:13,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-20 08:46:13,882 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:46:13,882 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:46:13,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 08:46:13,883 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:46:13,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:46:13,883 INFO L85 PathProgramCache]: Analyzing trace with hash 822712384, now seen corresponding path program 1 times [2024-11-20 08:46:13,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:46:13,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861432227] [2024-11-20 08:46:13,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:46:13,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:46:13,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:14,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:46:14,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:14,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:46:14,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:14,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:46:14,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:14,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:46:14,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:14,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:46:14,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:14,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:46:14,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:14,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:46:14,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:14,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 08:46:14,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:14,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:46:14,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:14,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 08:46:14,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:14,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-20 08:46:14,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:14,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:46:14,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:14,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:46:14,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:14,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:46:14,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:14,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:46:14,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:14,466 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-20 08:46:14,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:46:14,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861432227] [2024-11-20 08:46:14,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861432227] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:46:14,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:46:14,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 08:46:14,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207202375] [2024-11-20 08:46:14,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:46:14,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 08:46:14,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:46:14,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 08:46:14,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 08:46:14,470 INFO L87 Difference]: Start difference. First operand 234 states and 331 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-20 08:46:14,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:46:14,581 INFO L93 Difference]: Finished difference Result 518 states and 739 transitions. [2024-11-20 08:46:14,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 08:46:14,582 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 130 [2024-11-20 08:46:14,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:46:14,584 INFO L225 Difference]: With dead ends: 518 [2024-11-20 08:46:14,584 INFO L226 Difference]: Without dead ends: 302 [2024-11-20 08:46:14,588 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-20 08:46:14,589 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 148 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 08:46:14,589 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 814 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 08:46:14,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2024-11-20 08:46:14,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 221. [2024-11-20 08:46:14,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 187 states have (on average 1.358288770053476) internal successors, (254), 188 states have internal predecessors, (254), 30 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-20 08:46:14,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 314 transitions. [2024-11-20 08:46:14,621 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 314 transitions. Word has length 130 [2024-11-20 08:46:14,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:46:14,622 INFO L471 AbstractCegarLoop]: Abstraction has 221 states and 314 transitions. [2024-11-20 08:46:14,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-20 08:46:14,622 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 314 transitions. [2024-11-20 08:46:14,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-20 08:46:14,624 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:46:14,625 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:46:14,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 08:46:14,625 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:46:14,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:46:14,626 INFO L85 PathProgramCache]: Analyzing trace with hash -993277358, now seen corresponding path program 1 times [2024-11-20 08:46:14,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:46:14,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244040541] [2024-11-20 08:46:14,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:46:14,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:46:14,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:14,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:46:14,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:14,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:46:14,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:14,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:46:14,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:14,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:46:14,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:14,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:46:14,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:14,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:46:14,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:14,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:46:14,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:14,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 08:46:14,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:14,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:46:14,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:14,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 08:46:14,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:14,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-20 08:46:14,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:14,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:46:14,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:14,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:46:14,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:14,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:46:14,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:14,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:46:14,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:14,883 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-20 08:46:14,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:46:14,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244040541] [2024-11-20 08:46:14,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244040541] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:46:14,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:46:14,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 08:46:14,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395929355] [2024-11-20 08:46:14,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:46:14,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 08:46:14,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:46:14,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 08:46:14,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 08:46:14,885 INFO L87 Difference]: Start difference. First operand 221 states and 314 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-20 08:46:14,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:46:14,922 INFO L93 Difference]: Finished difference Result 445 states and 633 transitions. [2024-11-20 08:46:14,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 08:46:14,923 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 132 [2024-11-20 08:46:14,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:46:14,924 INFO L225 Difference]: With dead ends: 445 [2024-11-20 08:46:14,924 INFO L226 Difference]: Without dead ends: 227 [2024-11-20 08:46:14,925 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 08:46:14,926 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 0 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:46:14,926 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 590 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:46:14,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2024-11-20 08:46:14,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 223. [2024-11-20 08:46:14,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 189 states have (on average 1.3544973544973544) internal successors, (256), 190 states have internal predecessors, (256), 30 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-20 08:46:14,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 316 transitions. [2024-11-20 08:46:14,942 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 316 transitions. Word has length 132 [2024-11-20 08:46:14,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:46:14,943 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 316 transitions. [2024-11-20 08:46:14,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-20 08:46:14,943 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 316 transitions. [2024-11-20 08:46:14,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-20 08:46:14,945 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:46:14,945 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:46:14,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 08:46:14,945 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:46:14,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:46:14,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1160107863, now seen corresponding path program 1 times [2024-11-20 08:46:14,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:46:14,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700030561] [2024-11-20 08:46:14,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:46:14,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:46:15,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:15,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:46:15,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:15,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:46:15,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:15,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:46:15,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:15,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:46:15,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:15,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:46:15,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:15,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:46:15,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:15,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:46:15,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:15,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 08:46:15,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:15,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:46:15,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:15,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 08:46:15,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:15,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-20 08:46:15,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:15,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:46:15,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:15,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:46:15,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:15,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:46:15,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:15,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:46:15,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:15,925 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-20 08:46:15,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:46:15,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700030561] [2024-11-20 08:46:15,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700030561] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:46:15,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:46:15,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 08:46:15,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2417392] [2024-11-20 08:46:15,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:46:15,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 08:46:15,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:46:15,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 08:46:15,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-20 08:46:15,928 INFO L87 Difference]: Start difference. First operand 223 states and 316 transitions. Second operand has 10 states, 9 states have (on average 6.888888888888889) internal successors, (62), 10 states have internal predecessors, (62), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-20 08:46:16,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:46:16,589 INFO L93 Difference]: Finished difference Result 469 states and 661 transitions. [2024-11-20 08:46:16,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-20 08:46:16,590 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.888888888888889) internal successors, (62), 10 states have internal predecessors, (62), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 134 [2024-11-20 08:46:16,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:46:16,592 INFO L225 Difference]: With dead ends: 469 [2024-11-20 08:46:16,592 INFO L226 Difference]: Without dead ends: 249 [2024-11-20 08:46:16,593 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2024-11-20 08:46:16,594 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 428 mSDsluCounter, 670 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 08:46:16,594 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 815 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 08:46:16,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2024-11-20 08:46:16,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 223. [2024-11-20 08:46:16,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 189 states have (on average 1.3492063492063493) internal successors, (255), 190 states have internal predecessors, (255), 30 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-20 08:46:16,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 315 transitions. [2024-11-20 08:46:16,624 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 315 transitions. Word has length 134 [2024-11-20 08:46:16,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:46:16,625 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 315 transitions. [2024-11-20 08:46:16,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.888888888888889) internal successors, (62), 10 states have internal predecessors, (62), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-20 08:46:16,626 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 315 transitions. [2024-11-20 08:46:16,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-20 08:46:16,627 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:46:16,627 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:46:16,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 08:46:16,627 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:46:16,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:46:16,628 INFO L85 PathProgramCache]: Analyzing trace with hash -119755815, now seen corresponding path program 1 times [2024-11-20 08:46:16,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:46:16,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825125624] [2024-11-20 08:46:16,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:46:16,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:46:16,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:18,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:46:18,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:18,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:46:18,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:18,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:46:18,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:18,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:46:18,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:18,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:46:18,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:18,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:46:18,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:18,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:46:18,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:18,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 08:46:18,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:18,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:46:18,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:18,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 08:46:18,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:18,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-20 08:46:18,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:18,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:46:18,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:18,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:46:18,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:18,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:46:18,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:18,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:46:18,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:18,789 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-20 08:46:18,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:46:18,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825125624] [2024-11-20 08:46:18,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825125624] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:46:18,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:46:18,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-20 08:46:18,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121698869] [2024-11-20 08:46:18,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:46:18,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-20 08:46:18,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:46:18,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-20 08:46:18,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-20 08:46:18,793 INFO L87 Difference]: Start difference. First operand 223 states and 315 transitions. Second operand has 15 states, 14 states have (on average 4.428571428571429) internal successors, (62), 15 states have internal predecessors, (62), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-20 08:46:20,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:46:20,865 INFO L93 Difference]: Finished difference Result 597 states and 827 transitions. [2024-11-20 08:46:20,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-20 08:46:20,866 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.428571428571429) internal successors, (62), 15 states have internal predecessors, (62), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 134 [2024-11-20 08:46:20,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:46:20,869 INFO L225 Difference]: With dead ends: 597 [2024-11-20 08:46:20,869 INFO L226 Difference]: Without dead ends: 376 [2024-11-20 08:46:20,870 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=229, Invalid=763, Unknown=0, NotChecked=0, Total=992 [2024-11-20 08:46:20,871 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 909 mSDsluCounter, 1115 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 909 SdHoareTripleChecker+Valid, 1286 SdHoareTripleChecker+Invalid, 869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:46:20,871 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [909 Valid, 1286 Invalid, 869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-20 08:46:20,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2024-11-20 08:46:20,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 230. [2024-11-20 08:46:20,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 196 states have (on average 1.3520408163265305) internal successors, (265), 197 states have internal predecessors, (265), 30 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-20 08:46:20,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 325 transitions. [2024-11-20 08:46:20,896 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 325 transitions. Word has length 134 [2024-11-20 08:46:20,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:46:20,896 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 325 transitions. [2024-11-20 08:46:20,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.428571428571429) internal successors, (62), 15 states have internal predecessors, (62), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-20 08:46:20,897 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 325 transitions. [2024-11-20 08:46:20,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-20 08:46:20,898 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:46:20,898 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:46:20,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 08:46:20,898 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:46:20,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:46:20,899 INFO L85 PathProgramCache]: Analyzing trace with hash 459215189, now seen corresponding path program 1 times [2024-11-20 08:46:20,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:46:20,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255484934] [2024-11-20 08:46:20,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:46:20,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:46:21,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:23,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:46:23,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:23,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:46:23,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:23,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:46:23,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:23,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:46:23,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:23,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:46:23,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:23,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:46:23,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:23,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:46:23,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:23,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 08:46:23,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:23,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:46:23,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:23,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 08:46:23,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:23,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-20 08:46:23,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:23,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:46:23,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:23,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:46:23,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:23,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:46:23,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:23,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:46:23,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:23,684 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-20 08:46:23,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:46:23,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255484934] [2024-11-20 08:46:23,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255484934] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 08:46:23,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832131793] [2024-11-20 08:46:23,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:46:23,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 08:46:23,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 08:46:23,689 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 08:46:23,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 08:46:24,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:24,103 INFO L255 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-20 08:46:24,121 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 08:46:24,202 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-20 08:46:24,654 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2024-11-20 08:46:24,774 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-20 08:46:24,774 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 08:46:24,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [832131793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:46:24,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 08:46:24,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 13 [2024-11-20 08:46:24,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273344548] [2024-11-20 08:46:24,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:46:24,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 08:46:24,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:46:24,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 08:46:24,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-20 08:46:24,776 INFO L87 Difference]: Start difference. First operand 230 states and 325 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-20 08:46:25,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:46:25,629 INFO L93 Difference]: Finished difference Result 507 states and 716 transitions. [2024-11-20 08:46:25,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 08:46:25,631 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 134 [2024-11-20 08:46:25,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:46:25,633 INFO L225 Difference]: With dead ends: 507 [2024-11-20 08:46:25,633 INFO L226 Difference]: Without dead ends: 280 [2024-11-20 08:46:25,634 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 160 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2024-11-20 08:46:25,634 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 253 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-20 08:46:25,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 499 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-20 08:46:25,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2024-11-20 08:46:25,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 258. [2024-11-20 08:46:25,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 224 states have (on average 1.3571428571428572) internal successors, (304), 225 states have internal predecessors, (304), 30 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-20 08:46:25,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 364 transitions. [2024-11-20 08:46:25,655 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 364 transitions. Word has length 134 [2024-11-20 08:46:25,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:46:25,656 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 364 transitions. [2024-11-20 08:46:25,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-20 08:46:25,656 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 364 transitions. [2024-11-20 08:46:25,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-20 08:46:25,657 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:46:25,657 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:46:25,670 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-20 08:46:25,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-20 08:46:25,862 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:46:25,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:46:25,862 INFO L85 PathProgramCache]: Analyzing trace with hash 859645068, now seen corresponding path program 1 times [2024-11-20 08:46:25,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:46:25,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88199125] [2024-11-20 08:46:25,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:46:25,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:46:25,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:26,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:46:26,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:26,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:46:26,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:26,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:46:26,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:26,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:46:26,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:26,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:46:26,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:26,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:46:26,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:26,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:46:26,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:26,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 08:46:26,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:26,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:46:26,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:26,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 08:46:26,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:26,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-20 08:46:26,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:26,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:46:26,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:26,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:46:26,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:26,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:46:26,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:26,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:46:26,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:26,495 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-20 08:46:26,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:46:26,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88199125] [2024-11-20 08:46:26,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88199125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:46:26,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:46:26,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 08:46:26,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331922538] [2024-11-20 08:46:26,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:46:26,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 08:46:26,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:46:26,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 08:46:26,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-20 08:46:26,499 INFO L87 Difference]: Start difference. First operand 258 states and 364 transitions. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-20 08:46:26,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:46:26,825 INFO L93 Difference]: Finished difference Result 535 states and 751 transitions. [2024-11-20 08:46:26,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 08:46:26,826 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 134 [2024-11-20 08:46:26,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:46:26,828 INFO L225 Difference]: With dead ends: 535 [2024-11-20 08:46:26,828 INFO L226 Difference]: Without dead ends: 280 [2024-11-20 08:46:26,829 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-20 08:46:26,830 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 69 mSDsluCounter, 1161 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 1320 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 08:46:26,830 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 1320 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 08:46:26,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2024-11-20 08:46:26,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 262. [2024-11-20 08:46:26,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 228 states have (on average 1.3508771929824561) internal successors, (308), 229 states have internal predecessors, (308), 30 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-20 08:46:26,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 368 transitions. [2024-11-20 08:46:26,853 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 368 transitions. Word has length 134 [2024-11-20 08:46:26,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:46:26,854 INFO L471 AbstractCegarLoop]: Abstraction has 262 states and 368 transitions. [2024-11-20 08:46:26,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-20 08:46:26,854 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 368 transitions. [2024-11-20 08:46:26,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-20 08:46:26,856 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:46:26,856 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:46:26,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 08:46:26,857 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:46:26,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:46:26,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1560709646, now seen corresponding path program 1 times [2024-11-20 08:46:26,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:46:26,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401704987] [2024-11-20 08:46:26,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:46:26,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:46:26,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:27,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:46:27,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:27,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:46:27,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:27,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:46:27,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:27,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:46:27,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:27,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:46:27,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:27,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:46:27,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:27,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:46:27,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:27,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 08:46:27,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:27,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:46:27,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:27,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 08:46:27,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:27,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-20 08:46:27,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:27,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:46:27,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:27,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:46:27,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:27,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:46:27,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:27,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:46:27,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:27,447 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-20 08:46:27,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:46:27,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401704987] [2024-11-20 08:46:27,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401704987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:46:27,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:46:27,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 08:46:27,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818225790] [2024-11-20 08:46:27,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:46:27,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 08:46:27,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:46:27,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 08:46:27,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-20 08:46:27,450 INFO L87 Difference]: Start difference. First operand 262 states and 368 transitions. Second operand has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 8 states have internal predecessors, (62), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-20 08:46:27,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:46:27,815 INFO L93 Difference]: Finished difference Result 533 states and 746 transitions. [2024-11-20 08:46:27,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 08:46:27,816 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 8 states have internal predecessors, (62), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 134 [2024-11-20 08:46:27,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:46:27,818 INFO L225 Difference]: With dead ends: 533 [2024-11-20 08:46:27,818 INFO L226 Difference]: Without dead ends: 274 [2024-11-20 08:46:27,820 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-20 08:46:27,820 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 387 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 08:46:27,821 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 649 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 08:46:27,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2024-11-20 08:46:27,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 271. [2024-11-20 08:46:27,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 233 states have (on average 1.3390557939914163) internal successors, (312), 235 states have internal predecessors, (312), 33 states have call successors, (33), 4 states have call predecessors, (33), 4 states have return successors, (33), 31 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-20 08:46:27,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 378 transitions. [2024-11-20 08:46:27,851 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 378 transitions. Word has length 134 [2024-11-20 08:46:27,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:46:27,852 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 378 transitions. [2024-11-20 08:46:27,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 8 states have internal predecessors, (62), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-20 08:46:27,852 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 378 transitions. [2024-11-20 08:46:27,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-20 08:46:27,853 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:46:27,854 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:46:27,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 08:46:27,854 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:46:27,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:46:27,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1300656473, now seen corresponding path program 1 times [2024-11-20 08:46:27,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:46:27,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804708673] [2024-11-20 08:46:27,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:46:27,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:46:27,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:28,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:46:28,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:28,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:46:28,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:28,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:46:28,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:28,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:46:28,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:28,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:46:28,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:28,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:46:28,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:28,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:46:28,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:29,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 08:46:29,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:29,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:46:29,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:29,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 08:46:29,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:29,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-20 08:46:29,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:29,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:46:29,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:29,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:46:29,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:29,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:46:29,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:29,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:46:29,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:29,047 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 18 proven. 24 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-20 08:46:29,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:46:29,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804708673] [2024-11-20 08:46:29,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804708673] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 08:46:29,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643187871] [2024-11-20 08:46:29,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:46:29,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 08:46:29,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 08:46:29,051 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 08:46:29,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 08:46:29,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:29,373 INFO L255 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-20 08:46:29,382 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 08:46:29,426 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-20 08:46:29,487 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2024-11-20 08:46:29,510 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-20 08:46:29,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 24 [2024-11-20 08:46:29,618 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-20 08:46:29,672 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 104 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-20 08:46:29,673 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 08:46:29,909 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-20 08:46:29,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1643187871] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-20 08:46:29,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-20 08:46:29,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11, 6] total 18 [2024-11-20 08:46:29,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869669454] [2024-11-20 08:46:29,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:46:29,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 08:46:29,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:46:29,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 08:46:29,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2024-11-20 08:46:29,911 INFO L87 Difference]: Start difference. First operand 271 states and 378 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-20 08:46:30,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:46:30,017 INFO L93 Difference]: Finished difference Result 584 states and 806 transitions. [2024-11-20 08:46:30,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 08:46:30,019 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 134 [2024-11-20 08:46:30,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:46:30,021 INFO L225 Difference]: With dead ends: 584 [2024-11-20 08:46:30,021 INFO L226 Difference]: Without dead ends: 323 [2024-11-20 08:46:30,022 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2024-11-20 08:46:30,023 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 76 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 08:46:30,023 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 431 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 08:46:30,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2024-11-20 08:46:30,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 266. [2024-11-20 08:46:30,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 228 states have (on average 1.3245614035087718) internal successors, (302), 230 states have internal predecessors, (302), 33 states have call successors, (33), 4 states have call predecessors, (33), 4 states have return successors, (33), 31 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-20 08:46:30,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 368 transitions. [2024-11-20 08:46:30,049 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 368 transitions. Word has length 134 [2024-11-20 08:46:30,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:46:30,050 INFO L471 AbstractCegarLoop]: Abstraction has 266 states and 368 transitions. [2024-11-20 08:46:30,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-20 08:46:30,050 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 368 transitions. [2024-11-20 08:46:30,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-20 08:46:30,051 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:46:30,051 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:46:30,063 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-20 08:46:30,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-20 08:46:30,256 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:46:30,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:46:30,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1000193678, now seen corresponding path program 1 times [2024-11-20 08:46:30,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:46:30,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408834736] [2024-11-20 08:46:30,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:46:30,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:46:30,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:30,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:46:30,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:30,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:46:30,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:30,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:46:30,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:30,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:46:30,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:30,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:46:30,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:30,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:46:30,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:30,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:46:30,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:30,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 08:46:30,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:30,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:46:30,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:30,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 08:46:30,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:30,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-20 08:46:30,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:30,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:46:30,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:30,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:46:30,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:30,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:46:30,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:30,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:46:30,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:30,572 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-20 08:46:30,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:46:30,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408834736] [2024-11-20 08:46:30,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408834736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:46:30,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:46:30,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 08:46:30,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885954956] [2024-11-20 08:46:30,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:46:30,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 08:46:30,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:46:30,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 08:46:30,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 08:46:30,574 INFO L87 Difference]: Start difference. First operand 266 states and 368 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-20 08:46:30,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:46:30,720 INFO L93 Difference]: Finished difference Result 559 states and 767 transitions. [2024-11-20 08:46:30,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 08:46:30,721 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 134 [2024-11-20 08:46:30,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:46:30,723 INFO L225 Difference]: With dead ends: 559 [2024-11-20 08:46:30,723 INFO L226 Difference]: Without dead ends: 303 [2024-11-20 08:46:30,724 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-20 08:46:30,725 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 59 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 08:46:30,725 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 647 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 08:46:30,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2024-11-20 08:46:30,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 288. [2024-11-20 08:46:30,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 249 states have (on average 1.321285140562249) internal successors, (329), 251 states have internal predecessors, (329), 33 states have call successors, (33), 5 states have call predecessors, (33), 5 states have return successors, (33), 31 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-20 08:46:30,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 395 transitions. [2024-11-20 08:46:30,750 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 395 transitions. Word has length 134 [2024-11-20 08:46:30,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:46:30,751 INFO L471 AbstractCegarLoop]: Abstraction has 288 states and 395 transitions. [2024-11-20 08:46:30,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-20 08:46:30,751 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 395 transitions. [2024-11-20 08:46:30,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-20 08:46:30,753 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:46:30,753 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:46:30,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-20 08:46:30,753 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:46:30,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:46:30,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1701258256, now seen corresponding path program 1 times [2024-11-20 08:46:30,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:46:30,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092055157] [2024-11-20 08:46:30,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:46:30,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:46:30,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:31,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:46:31,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:31,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:46:31,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:31,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:46:31,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:31,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:46:31,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:31,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:46:31,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:31,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:46:31,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:31,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:46:31,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:31,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 08:46:31,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:31,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:46:31,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:31,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 08:46:31,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:31,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-20 08:46:31,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:31,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:46:31,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:31,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:46:31,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:31,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:46:31,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:31,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:46:31,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:31,589 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-20 08:46:31,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:46:31,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092055157] [2024-11-20 08:46:31,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092055157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:46:31,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:46:31,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 08:46:31,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235168018] [2024-11-20 08:46:31,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:46:31,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 08:46:31,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:46:31,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 08:46:31,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-20 08:46:31,592 INFO L87 Difference]: Start difference. First operand 288 states and 395 transitions. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-20 08:46:31,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:46:31,976 INFO L93 Difference]: Finished difference Result 590 states and 806 transitions. [2024-11-20 08:46:31,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 08:46:31,976 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 134 [2024-11-20 08:46:31,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:46:31,978 INFO L225 Difference]: With dead ends: 590 [2024-11-20 08:46:31,978 INFO L226 Difference]: Without dead ends: 305 [2024-11-20 08:46:31,979 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-20 08:46:31,980 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 62 mSDsluCounter, 1307 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 1493 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 08:46:31,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 1493 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 08:46:31,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2024-11-20 08:46:32,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 290. [2024-11-20 08:46:32,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 251 states have (on average 1.3187250996015936) internal successors, (331), 253 states have internal predecessors, (331), 33 states have call successors, (33), 5 states have call predecessors, (33), 5 states have return successors, (33), 31 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-20 08:46:32,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 397 transitions. [2024-11-20 08:46:32,003 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 397 transitions. Word has length 134 [2024-11-20 08:46:32,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:46:32,004 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 397 transitions. [2024-11-20 08:46:32,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-20 08:46:32,004 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 397 transitions. [2024-11-20 08:46:32,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-20 08:46:32,006 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:46:32,006 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:46:32,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-20 08:46:32,006 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:46:32,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:46:32,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1996854690, now seen corresponding path program 1 times [2024-11-20 08:46:32,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:46:32,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576109562] [2024-11-20 08:46:32,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:46:32,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:46:32,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:32,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:46:32,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:32,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:46:32,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:32,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:46:32,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:32,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:46:32,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:32,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:46:32,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:32,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:46:32,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:32,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:46:32,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:32,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 08:46:32,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:32,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:46:32,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:32,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 08:46:32,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:32,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-20 08:46:32,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:32,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:46:32,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:32,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:46:32,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:32,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:46:32,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:32,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:46:32,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:32,540 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-20 08:46:32,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:46:32,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576109562] [2024-11-20 08:46:32,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576109562] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:46:32,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:46:32,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 08:46:32,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233656362] [2024-11-20 08:46:32,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:46:32,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 08:46:32,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:46:32,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 08:46:32,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-20 08:46:32,543 INFO L87 Difference]: Start difference. First operand 290 states and 397 transitions. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-20 08:46:32,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:46:32,880 INFO L93 Difference]: Finished difference Result 656 states and 894 transitions. [2024-11-20 08:46:32,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 08:46:32,882 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 134 [2024-11-20 08:46:32,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:46:32,884 INFO L225 Difference]: With dead ends: 656 [2024-11-20 08:46:32,884 INFO L226 Difference]: Without dead ends: 369 [2024-11-20 08:46:32,885 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-20 08:46:32,886 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 70 mSDsluCounter, 1264 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 1441 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 08:46:32,886 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 1441 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 08:46:32,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2024-11-20 08:46:32,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 325. [2024-11-20 08:46:32,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 286 states have (on average 1.3286713286713288) internal successors, (380), 288 states have internal predecessors, (380), 33 states have call successors, (33), 5 states have call predecessors, (33), 5 states have return successors, (33), 31 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-20 08:46:32,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 446 transitions. [2024-11-20 08:46:32,912 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 446 transitions. Word has length 134 [2024-11-20 08:46:32,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:46:32,913 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 446 transitions. [2024-11-20 08:46:32,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-20 08:46:32,914 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 446 transitions. [2024-11-20 08:46:32,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-20 08:46:32,915 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:46:32,915 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:46:32,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-20 08:46:32,916 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:46:32,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:46:32,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1295790112, now seen corresponding path program 1 times [2024-11-20 08:46:32,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:46:32,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124163167] [2024-11-20 08:46:32,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:46:32,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:46:32,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:33,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:46:33,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:33,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:46:33,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:33,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:46:33,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:33,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:46:33,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:33,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:46:33,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:33,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:46:33,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:33,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:46:33,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:33,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 08:46:33,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:33,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:46:33,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:33,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 08:46:33,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:33,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-20 08:46:33,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:33,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:46:33,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:33,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:46:33,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:33,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:46:33,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:33,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:46:33,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:33,544 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-20 08:46:33,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:46:33,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124163167] [2024-11-20 08:46:33,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124163167] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:46:33,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:46:33,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 08:46:33,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341306473] [2024-11-20 08:46:33,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:46:33,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 08:46:33,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:46:33,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 08:46:33,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-20 08:46:33,546 INFO L87 Difference]: Start difference. First operand 325 states and 446 transitions. Second operand has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 8 states have internal predecessors, (62), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-20 08:46:33,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:46:33,925 INFO L93 Difference]: Finished difference Result 678 states and 927 transitions. [2024-11-20 08:46:33,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 08:46:33,926 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 8 states have internal predecessors, (62), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 134 [2024-11-20 08:46:33,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:46:33,930 INFO L225 Difference]: With dead ends: 678 [2024-11-20 08:46:33,932 INFO L226 Difference]: Without dead ends: 356 [2024-11-20 08:46:33,933 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-20 08:46:33,933 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 207 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 08:46:33,933 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 757 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 08:46:33,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2024-11-20 08:46:33,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 324. [2024-11-20 08:46:33,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 285 states have (on average 1.3263157894736841) internal successors, (378), 287 states have internal predecessors, (378), 33 states have call successors, (33), 5 states have call predecessors, (33), 5 states have return successors, (33), 31 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-20 08:46:33,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 444 transitions. [2024-11-20 08:46:33,960 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 444 transitions. Word has length 134 [2024-11-20 08:46:33,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:46:33,961 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 444 transitions. [2024-11-20 08:46:33,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 8 states have internal predecessors, (62), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-20 08:46:33,961 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 444 transitions. [2024-11-20 08:46:33,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-20 08:46:33,963 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:46:33,964 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:46:33,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-20 08:46:33,964 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:46:33,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:46:33,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1596424811, now seen corresponding path program 1 times [2024-11-20 08:46:33,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:46:33,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533781158] [2024-11-20 08:46:33,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:46:33,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:46:34,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:34,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:46:34,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:34,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:46:34,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:34,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:46:34,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:34,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:46:34,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:34,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:46:34,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:34,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:46:34,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:34,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:46:34,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:34,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 08:46:34,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:34,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:46:34,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:34,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 08:46:34,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:34,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-20 08:46:34,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:34,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:46:34,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:34,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:46:34,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:34,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:46:34,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:34,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:46:34,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:34,923 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-20 08:46:34,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:46:34,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533781158] [2024-11-20 08:46:34,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533781158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:46:34,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:46:34,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 08:46:34,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535566282] [2024-11-20 08:46:34,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:46:34,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 08:46:34,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:46:34,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 08:46:34,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-20 08:46:34,926 INFO L87 Difference]: Start difference. First operand 324 states and 444 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-20 08:46:35,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:46:35,521 INFO L93 Difference]: Finished difference Result 662 states and 905 transitions. [2024-11-20 08:46:35,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 08:46:35,522 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 134 [2024-11-20 08:46:35,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:46:35,525 INFO L225 Difference]: With dead ends: 662 [2024-11-20 08:46:35,525 INFO L226 Difference]: Without dead ends: 341 [2024-11-20 08:46:35,526 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-20 08:46:35,526 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 279 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 08:46:35,526 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 610 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 08:46:35,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2024-11-20 08:46:35,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 319. [2024-11-20 08:46:35,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 280 states have (on average 1.3178571428571428) internal successors, (369), 282 states have internal predecessors, (369), 33 states have call successors, (33), 5 states have call predecessors, (33), 5 states have return successors, (33), 31 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-20 08:46:35,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 435 transitions. [2024-11-20 08:46:35,555 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 435 transitions. Word has length 134 [2024-11-20 08:46:35,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:46:35,555 INFO L471 AbstractCegarLoop]: Abstraction has 319 states and 435 transitions. [2024-11-20 08:46:35,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-20 08:46:35,555 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 435 transitions. [2024-11-20 08:46:35,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-20 08:46:35,557 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:46:35,557 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:46:35,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-20 08:46:35,557 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:46:35,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:46:35,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1856306080, now seen corresponding path program 1 times [2024-11-20 08:46:35,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:46:35,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682641280] [2024-11-20 08:46:35,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:46:35,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:46:35,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:35,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:46:35,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:35,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:46:35,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:35,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:46:35,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:35,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:46:35,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:35,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:46:35,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:35,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:46:35,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:35,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:46:35,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:35,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 08:46:35,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:35,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:46:35,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:35,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 08:46:35,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:35,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-20 08:46:35,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:35,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:46:35,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:35,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:46:35,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:35,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:46:35,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:35,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:46:35,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:35,913 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-20 08:46:35,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:46:35,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682641280] [2024-11-20 08:46:35,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682641280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:46:35,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:46:35,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 08:46:35,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730625398] [2024-11-20 08:46:35,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:46:35,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 08:46:35,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:46:35,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 08:46:35,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 08:46:35,915 INFO L87 Difference]: Start difference. First operand 319 states and 435 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-20 08:46:36,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:46:36,073 INFO L93 Difference]: Finished difference Result 654 states and 886 transitions. [2024-11-20 08:46:36,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 08:46:36,074 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 134 [2024-11-20 08:46:36,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:46:36,076 INFO L225 Difference]: With dead ends: 654 [2024-11-20 08:46:36,076 INFO L226 Difference]: Without dead ends: 338 [2024-11-20 08:46:36,077 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-20 08:46:36,077 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 59 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 08:46:36,077 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 650 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 08:46:36,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2024-11-20 08:46:36,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 297. [2024-11-20 08:46:36,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 261 states have (on average 1.314176245210728) internal successors, (343), 262 states have internal predecessors, (343), 30 states have call successors, (30), 5 states have call predecessors, (30), 5 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-20 08:46:36,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 403 transitions. [2024-11-20 08:46:36,101 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 403 transitions. Word has length 134 [2024-11-20 08:46:36,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:46:36,101 INFO L471 AbstractCegarLoop]: Abstraction has 297 states and 403 transitions. [2024-11-20 08:46:36,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-20 08:46:36,102 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 403 transitions. [2024-11-20 08:46:36,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-20 08:46:36,103 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:46:36,103 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:46:36,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-20 08:46:36,103 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:46:36,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:46:36,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1155241502, now seen corresponding path program 1 times [2024-11-20 08:46:36,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:46:36,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570169853] [2024-11-20 08:46:36,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:46:36,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:46:36,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:36,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:46:36,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:36,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:46:36,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:36,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:46:36,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:36,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:46:36,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:36,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:46:36,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:36,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:46:36,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:36,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:46:36,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:36,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 08:46:36,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:36,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:46:36,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:36,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 08:46:36,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:36,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-20 08:46:36,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:36,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:46:36,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:36,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:46:36,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:36,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:46:36,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:36,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:46:36,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:36,652 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-20 08:46:36,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:46:36,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570169853] [2024-11-20 08:46:36,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570169853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:46:36,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:46:36,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 08:46:36,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991110713] [2024-11-20 08:46:36,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:46:36,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 08:46:36,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:46:36,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 08:46:36,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-20 08:46:36,655 INFO L87 Difference]: Start difference. First operand 297 states and 403 transitions. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-20 08:46:37,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:46:37,004 INFO L93 Difference]: Finished difference Result 630 states and 851 transitions. [2024-11-20 08:46:37,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 08:46:37,004 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 134 [2024-11-20 08:46:37,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:46:37,007 INFO L225 Difference]: With dead ends: 630 [2024-11-20 08:46:37,007 INFO L226 Difference]: Without dead ends: 336 [2024-11-20 08:46:37,008 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-20 08:46:37,009 INFO L432 NwaCegarLoop]: 209 mSDtfsCounter, 66 mSDsluCounter, 1469 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 1678 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 08:46:37,009 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 1678 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 08:46:37,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2024-11-20 08:46:37,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 333. [2024-11-20 08:46:37,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 290 states have (on average 1.303448275862069) internal successors, (378), 292 states have internal predecessors, (378), 35 states have call successors, (35), 7 states have call predecessors, (35), 7 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-20 08:46:37,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 448 transitions. [2024-11-20 08:46:37,045 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 448 transitions. Word has length 134 [2024-11-20 08:46:37,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:46:37,045 INFO L471 AbstractCegarLoop]: Abstraction has 333 states and 448 transitions. [2024-11-20 08:46:37,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-20 08:46:37,046 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 448 transitions. [2024-11-20 08:46:37,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-20 08:46:37,047 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:46:37,047 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:46:37,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-20 08:46:37,048 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:46:37,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:46:37,048 INFO L85 PathProgramCache]: Analyzing trace with hash 259226415, now seen corresponding path program 1 times [2024-11-20 08:46:37,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:46:37,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136790990] [2024-11-20 08:46:37,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:46:37,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:46:37,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:37,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:46:37,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:37,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:46:37,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:37,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:46:37,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:37,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:46:37,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:37,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:46:37,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:37,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:46:37,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:37,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:46:37,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:37,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 08:46:37,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:37,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:46:37,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:37,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 08:46:37,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:37,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-20 08:46:37,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:37,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:46:37,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:37,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:46:37,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:37,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:46:37,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:37,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:46:37,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:37,540 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-20 08:46:37,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:46:37,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136790990] [2024-11-20 08:46:37,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136790990] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:46:37,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:46:37,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 08:46:37,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953260077] [2024-11-20 08:46:37,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:46:37,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 08:46:37,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:46:37,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 08:46:37,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-20 08:46:37,545 INFO L87 Difference]: Start difference. First operand 333 states and 448 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-20 08:46:37,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:46:37,821 INFO L93 Difference]: Finished difference Result 757 states and 1009 transitions. [2024-11-20 08:46:37,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 08:46:37,822 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 135 [2024-11-20 08:46:37,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:46:37,824 INFO L225 Difference]: With dead ends: 757 [2024-11-20 08:46:37,825 INFO L226 Difference]: Without dead ends: 427 [2024-11-20 08:46:37,825 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2024-11-20 08:46:37,826 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 248 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 08:46:37,826 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 599 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 08:46:37,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2024-11-20 08:46:37,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 345. [2024-11-20 08:46:37,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 302 states have (on average 1.304635761589404) internal successors, (394), 304 states have internal predecessors, (394), 35 states have call successors, (35), 7 states have call predecessors, (35), 7 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-20 08:46:37,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 464 transitions. [2024-11-20 08:46:37,858 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 464 transitions. Word has length 135 [2024-11-20 08:46:37,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:46:37,858 INFO L471 AbstractCegarLoop]: Abstraction has 345 states and 464 transitions. [2024-11-20 08:46:37,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-20 08:46:37,858 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 464 transitions. [2024-11-20 08:46:37,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-20 08:46:37,860 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:46:37,860 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:46:37,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-20 08:46:37,861 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:46:37,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:46:37,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1008176994, now seen corresponding path program 1 times [2024-11-20 08:46:37,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:46:37,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336756144] [2024-11-20 08:46:37,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:46:37,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:46:37,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:38,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:46:38,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:38,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:46:38,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:38,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:46:38,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:38,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:46:38,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:38,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:46:38,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:38,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:46:38,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:38,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:46:38,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:38,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 08:46:38,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:38,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:46:38,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:38,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 08:46:38,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:38,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-20 08:46:38,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:38,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:46:38,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:38,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:46:38,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:38,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:46:38,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:38,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:46:38,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:38,338 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-20 08:46:38,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:46:38,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336756144] [2024-11-20 08:46:38,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336756144] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:46:38,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:46:38,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 08:46:38,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988727915] [2024-11-20 08:46:38,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:46:38,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 08:46:38,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:46:38,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 08:46:38,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 08:46:38,340 INFO L87 Difference]: Start difference. First operand 345 states and 464 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-20 08:46:38,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:46:38,496 INFO L93 Difference]: Finished difference Result 380 states and 503 transitions. [2024-11-20 08:46:38,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 08:46:38,497 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 137 [2024-11-20 08:46:38,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:46:38,499 INFO L225 Difference]: With dead ends: 380 [2024-11-20 08:46:38,500 INFO L226 Difference]: Without dead ends: 378 [2024-11-20 08:46:38,500 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-20 08:46:38,501 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 56 mSDsluCounter, 695 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 08:46:38,501 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 852 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 08:46:38,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2024-11-20 08:46:38,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 230. [2024-11-20 08:46:38,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 211 states have (on average 1.3222748815165877) internal successors, (279), 211 states have internal predecessors, (279), 15 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-20 08:46:38,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 309 transitions. [2024-11-20 08:46:38,520 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 309 transitions. Word has length 137 [2024-11-20 08:46:38,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:46:38,520 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 309 transitions. [2024-11-20 08:46:38,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-20 08:46:38,520 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 309 transitions. [2024-11-20 08:46:38,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-20 08:46:38,521 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:46:38,521 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:46:38,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-20 08:46:38,522 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:46:38,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:46:38,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1006329952, now seen corresponding path program 1 times [2024-11-20 08:46:38,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:46:38,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453040685] [2024-11-20 08:46:38,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:46:38,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:46:38,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:39,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:46:39,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:39,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:46:39,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:39,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:46:39,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:39,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:46:39,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:39,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:46:39,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:39,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:46:39,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:39,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:46:39,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:39,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 08:46:39,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:39,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:46:39,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:39,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 08:46:39,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:39,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-20 08:46:39,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:39,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:46:39,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:39,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:46:39,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:39,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:46:39,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:39,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:46:39,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:39,658 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-20 08:46:39,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:46:39,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453040685] [2024-11-20 08:46:39,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453040685] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:46:39,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:46:39,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 08:46:39,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498185359] [2024-11-20 08:46:39,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:46:39,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 08:46:39,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:46:39,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 08:46:39,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-20 08:46:39,660 INFO L87 Difference]: Start difference. First operand 230 states and 309 transitions. Second operand has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 12 states have internal predecessors, (65), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-20 08:46:40,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:46:40,107 INFO L93 Difference]: Finished difference Result 559 states and 740 transitions. [2024-11-20 08:46:40,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 08:46:40,108 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 12 states have internal predecessors, (65), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 137 [2024-11-20 08:46:40,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:46:40,110 INFO L225 Difference]: With dead ends: 559 [2024-11-20 08:46:40,110 INFO L226 Difference]: Without dead ends: 332 [2024-11-20 08:46:40,110 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2024-11-20 08:46:40,111 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 331 mSDsluCounter, 859 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 08:46:40,111 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 1002 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 08:46:40,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2024-11-20 08:46:40,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 268. [2024-11-20 08:46:40,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 249 states have (on average 1.3172690763052208) internal successors, (328), 249 states have internal predecessors, (328), 15 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-20 08:46:40,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 358 transitions. [2024-11-20 08:46:40,137 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 358 transitions. Word has length 137 [2024-11-20 08:46:40,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:46:40,138 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 358 transitions. [2024-11-20 08:46:40,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 12 states have internal predecessors, (65), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-20 08:46:40,138 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 358 transitions. [2024-11-20 08:46:40,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-20 08:46:40,139 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:46:40,140 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:46:40,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-20 08:46:40,140 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:46:40,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:46:40,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1825075018, now seen corresponding path program 1 times [2024-11-20 08:46:40,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:46:40,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593145991] [2024-11-20 08:46:40,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:46:40,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:46:40,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:40,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:46:40,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:40,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:46:40,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:40,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:46:40,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:40,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:46:40,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:40,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:46:40,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:40,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:46:40,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:40,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:46:40,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:40,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 08:46:40,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:40,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:46:40,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:40,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 08:46:40,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:40,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-20 08:46:40,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:40,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:46:40,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:40,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:46:40,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:40,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:46:40,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:40,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:46:40,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:40,649 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-20 08:46:40,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:46:40,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593145991] [2024-11-20 08:46:40,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593145991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:46:40,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:46:40,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 08:46:40,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482714397] [2024-11-20 08:46:40,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:46:40,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 08:46:40,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:46:40,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 08:46:40,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 08:46:40,652 INFO L87 Difference]: Start difference. First operand 268 states and 358 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-20 08:46:41,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:46:41,102 INFO L93 Difference]: Finished difference Result 779 states and 1034 transitions. [2024-11-20 08:46:41,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 08:46:41,106 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 137 [2024-11-20 08:46:41,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:46:41,108 INFO L225 Difference]: With dead ends: 779 [2024-11-20 08:46:41,108 INFO L226 Difference]: Without dead ends: 512 [2024-11-20 08:46:41,111 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-20 08:46:41,112 INFO L432 NwaCegarLoop]: 262 mSDtfsCounter, 240 mSDsluCounter, 902 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 1164 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 08:46:41,112 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 1164 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 08:46:41,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2024-11-20 08:46:41,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 275. [2024-11-20 08:46:41,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 256 states have (on average 1.31640625) internal successors, (337), 256 states have internal predecessors, (337), 15 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-20 08:46:41,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 367 transitions. [2024-11-20 08:46:41,138 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 367 transitions. Word has length 137 [2024-11-20 08:46:41,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:46:41,139 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 367 transitions. [2024-11-20 08:46:41,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-20 08:46:41,139 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 367 transitions. [2024-11-20 08:46:41,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-20 08:46:41,140 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:46:41,140 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:46:41,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-20 08:46:41,141 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:46:41,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:46:41,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1007426568, now seen corresponding path program 1 times [2024-11-20 08:46:41,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:46:41,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920783247] [2024-11-20 08:46:41,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:46:41,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:46:41,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:41,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:46:41,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:41,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:46:41,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:41,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:46:41,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:41,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:46:41,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:41,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:46:41,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:41,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:46:41,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:41,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:46:41,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:41,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 08:46:41,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:41,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:46:41,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:41,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 08:46:41,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:41,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-20 08:46:41,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:41,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:46:41,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:41,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:46:41,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:41,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:46:41,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:41,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:46:41,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:41,750 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-20 08:46:41,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:46:41,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920783247] [2024-11-20 08:46:41,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920783247] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:46:41,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:46:41,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 08:46:41,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149829874] [2024-11-20 08:46:41,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:46:41,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 08:46:41,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:46:41,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 08:46:41,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-20 08:46:41,752 INFO L87 Difference]: Start difference. First operand 275 states and 367 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-20 08:46:42,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:46:42,118 INFO L93 Difference]: Finished difference Result 749 states and 991 transitions. [2024-11-20 08:46:42,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 08:46:42,119 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 137 [2024-11-20 08:46:42,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:46:42,122 INFO L225 Difference]: With dead ends: 749 [2024-11-20 08:46:42,122 INFO L226 Difference]: Without dead ends: 477 [2024-11-20 08:46:42,123 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-11-20 08:46:42,123 INFO L432 NwaCegarLoop]: 283 mSDtfsCounter, 147 mSDsluCounter, 1721 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 2004 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 08:46:42,123 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 2004 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 08:46:42,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2024-11-20 08:46:42,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 276. [2024-11-20 08:46:42,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 257 states have (on average 1.3190661478599222) internal successors, (339), 257 states have internal predecessors, (339), 15 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-20 08:46:42,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 369 transitions. [2024-11-20 08:46:42,148 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 369 transitions. Word has length 137 [2024-11-20 08:46:42,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:46:42,148 INFO L471 AbstractCegarLoop]: Abstraction has 276 states and 369 transitions. [2024-11-20 08:46:42,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-20 08:46:42,149 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 369 transitions. [2024-11-20 08:46:42,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-20 08:46:42,150 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:46:42,150 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:46:42,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-20 08:46:42,150 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:46:42,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:46:42,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1768047004, now seen corresponding path program 1 times [2024-11-20 08:46:42,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:46:42,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303764327] [2024-11-20 08:46:42,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:46:42,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:46:42,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:43,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:46:43,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:43,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:46:43,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:43,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:46:43,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:43,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:46:43,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:43,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:46:43,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:43,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:46:43,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:43,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:46:43,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:43,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 08:46:43,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:43,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:46:43,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:43,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 08:46:43,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:43,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-20 08:46:43,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:43,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:46:43,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:43,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:46:43,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:43,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:46:43,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:43,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:46:43,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:43,147 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-20 08:46:43,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:46:43,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303764327] [2024-11-20 08:46:43,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303764327] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:46:43,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:46:43,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-20 08:46:43,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567561968] [2024-11-20 08:46:43,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:46:43,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 08:46:43,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:46:43,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 08:46:43,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-20 08:46:43,150 INFO L87 Difference]: Start difference. First operand 276 states and 369 transitions. Second operand has 11 states, 10 states have (on average 6.5) internal successors, (65), 11 states have internal predecessors, (65), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-20 08:46:43,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:46:43,561 INFO L93 Difference]: Finished difference Result 688 states and 917 transitions. [2024-11-20 08:46:43,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 08:46:43,562 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.5) internal successors, (65), 11 states have internal predecessors, (65), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 137 [2024-11-20 08:46:43,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:46:43,564 INFO L225 Difference]: With dead ends: 688 [2024-11-20 08:46:43,564 INFO L226 Difference]: Without dead ends: 415 [2024-11-20 08:46:43,565 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2024-11-20 08:46:43,567 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 239 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 1049 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 08:46:43,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 1049 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 08:46:43,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2024-11-20 08:46:43,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 378. [2024-11-20 08:46:43,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 359 states have (on average 1.3286908077994428) internal successors, (477), 359 states have internal predecessors, (477), 15 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-20 08:46:43,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 507 transitions. [2024-11-20 08:46:43,598 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 507 transitions. Word has length 137 [2024-11-20 08:46:43,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:46:43,598 INFO L471 AbstractCegarLoop]: Abstraction has 378 states and 507 transitions. [2024-11-20 08:46:43,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.5) internal successors, (65), 11 states have internal predecessors, (65), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-20 08:46:43,599 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 507 transitions. [2024-11-20 08:46:43,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-20 08:46:43,621 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:46:43,621 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:46:43,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-20 08:46:43,621 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:46:43,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:46:43,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1699501690, now seen corresponding path program 1 times [2024-11-20 08:46:43,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:46:43,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459654737] [2024-11-20 08:46:43,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:46:43,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:46:43,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:44,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:46:44,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:44,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:46:44,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:44,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:46:44,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:44,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:46:44,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:44,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:46:44,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:44,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:46:44,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:44,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:46:44,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:44,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 08:46:44,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:44,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:46:44,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:44,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 08:46:44,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:44,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-20 08:46:44,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:44,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:46:44,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:44,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:46:44,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:44,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:46:44,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:44,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:46:44,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:44,496 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-20 08:46:44,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:46:44,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459654737] [2024-11-20 08:46:44,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459654737] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:46:44,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:46:44,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 08:46:44,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874038215] [2024-11-20 08:46:44,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:46:44,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 08:46:44,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:46:44,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 08:46:44,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-20 08:46:44,498 INFO L87 Difference]: Start difference. First operand 378 states and 507 transitions. Second operand has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-20 08:46:45,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:46:45,267 INFO L93 Difference]: Finished difference Result 1029 states and 1359 transitions. [2024-11-20 08:46:45,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-20 08:46:45,268 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 137 [2024-11-20 08:46:45,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:46:45,271 INFO L225 Difference]: With dead ends: 1029 [2024-11-20 08:46:45,271 INFO L226 Difference]: Without dead ends: 654 [2024-11-20 08:46:45,272 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=75, Invalid=387, Unknown=0, NotChecked=0, Total=462 [2024-11-20 08:46:45,273 INFO L432 NwaCegarLoop]: 254 mSDtfsCounter, 266 mSDsluCounter, 2024 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 2278 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 08:46:45,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 2278 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 08:46:45,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2024-11-20 08:46:45,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 378. [2024-11-20 08:46:45,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 359 states have (on average 1.3286908077994428) internal successors, (477), 359 states have internal predecessors, (477), 15 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-20 08:46:45,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 507 transitions. [2024-11-20 08:46:45,305 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 507 transitions. Word has length 137 [2024-11-20 08:46:45,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:46:45,306 INFO L471 AbstractCegarLoop]: Abstraction has 378 states and 507 transitions. [2024-11-20 08:46:45,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-20 08:46:45,306 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 507 transitions. [2024-11-20 08:46:45,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-20 08:46:45,307 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:46:45,307 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:46:45,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-20 08:46:45,308 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:46:45,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:46:45,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1777817156, now seen corresponding path program 1 times [2024-11-20 08:46:45,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:46:45,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724390861] [2024-11-20 08:46:45,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:46:45,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:46:45,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:45,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:46:45,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:45,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:46:45,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:45,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:46:45,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:45,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:46:45,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:45,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:46:45,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:45,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:46:45,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:45,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:46:45,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:45,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 08:46:45,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:45,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:46:45,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:45,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 08:46:45,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:45,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-20 08:46:45,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:45,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:46:45,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:45,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:46:45,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:45,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:46:45,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:45,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:46:45,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:45,750 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-20 08:46:45,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:46:45,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724390861] [2024-11-20 08:46:45,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724390861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:46:45,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:46:45,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 08:46:45,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990400635] [2024-11-20 08:46:45,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:46:45,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 08:46:45,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:46:45,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 08:46:45,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-20 08:46:45,753 INFO L87 Difference]: Start difference. First operand 378 states and 507 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-20 08:46:46,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:46:46,230 INFO L93 Difference]: Finished difference Result 1006 states and 1332 transitions. [2024-11-20 08:46:46,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 08:46:46,230 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 137 [2024-11-20 08:46:46,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:46:46,233 INFO L225 Difference]: With dead ends: 1006 [2024-11-20 08:46:46,233 INFO L226 Difference]: Without dead ends: 631 [2024-11-20 08:46:46,234 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-20 08:46:46,235 INFO L432 NwaCegarLoop]: 356 mSDtfsCounter, 369 mSDsluCounter, 1000 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 1356 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 08:46:46,237 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 1356 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 08:46:46,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2024-11-20 08:46:46,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 366. [2024-11-20 08:46:46,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 347 states have (on average 1.3112391930835734) internal successors, (455), 347 states have internal predecessors, (455), 15 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-20 08:46:46,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 485 transitions. [2024-11-20 08:46:46,278 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 485 transitions. Word has length 137 [2024-11-20 08:46:46,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:46:46,279 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 485 transitions. [2024-11-20 08:46:46,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-20 08:46:46,279 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 485 transitions. [2024-11-20 08:46:46,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-20 08:46:46,280 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:46:46,280 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:46:46,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-20 08:46:46,284 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:46:46,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:46:46,285 INFO L85 PathProgramCache]: Analyzing trace with hash -904939233, now seen corresponding path program 1 times [2024-11-20 08:46:46,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:46:46,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358247831] [2024-11-20 08:46:46,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:46:46,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:46:46,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:47,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:46:47,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:47,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:46:47,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:47,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:46:47,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:47,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:46:47,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:47,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:46:47,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:47,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:46:47,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:47,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:46:47,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:47,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 08:46:47,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:47,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:46:47,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:47,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 08:46:47,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:47,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-20 08:46:47,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:47,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:46:47,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:47,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:46:47,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:47,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:46:47,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:47,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:46:47,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:47,094 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-20 08:46:47,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:46:47,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358247831] [2024-11-20 08:46:47,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358247831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:46:47,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:46:47,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-20 08:46:47,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842831152] [2024-11-20 08:46:47,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:46:47,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 08:46:47,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:46:47,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 08:46:47,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-20 08:46:47,096 INFO L87 Difference]: Start difference. First operand 366 states and 485 transitions. Second operand has 11 states, 10 states have (on average 6.5) internal successors, (65), 11 states have internal predecessors, (65), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-20 08:46:47,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:46:47,833 INFO L93 Difference]: Finished difference Result 830 states and 1094 transitions. [2024-11-20 08:46:47,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 08:46:47,834 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.5) internal successors, (65), 11 states have internal predecessors, (65), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 137 [2024-11-20 08:46:47,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:46:47,837 INFO L225 Difference]: With dead ends: 830 [2024-11-20 08:46:47,837 INFO L226 Difference]: Without dead ends: 467 [2024-11-20 08:46:47,838 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2024-11-20 08:46:47,839 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 412 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 08:46:47,839 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 901 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 08:46:47,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2024-11-20 08:46:47,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 344. [2024-11-20 08:46:47,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 325 states have (on average 1.2953846153846154) internal successors, (421), 325 states have internal predecessors, (421), 15 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-20 08:46:47,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 451 transitions. [2024-11-20 08:46:47,874 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 451 transitions. Word has length 137 [2024-11-20 08:46:47,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:46:47,875 INFO L471 AbstractCegarLoop]: Abstraction has 344 states and 451 transitions. [2024-11-20 08:46:47,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.5) internal successors, (65), 11 states have internal predecessors, (65), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-20 08:46:47,875 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 451 transitions. [2024-11-20 08:46:47,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-20 08:46:47,876 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:46:47,876 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:46:47,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-20 08:46:47,877 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:46:47,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:46:47,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1414412323, now seen corresponding path program 1 times [2024-11-20 08:46:47,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:46:47,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648246860] [2024-11-20 08:46:47,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:46:47,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:46:47,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:48,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:46:48,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:48,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:46:48,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:48,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:46:48,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:48,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:46:48,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:48,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:46:48,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:48,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:46:48,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:48,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:46:48,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:48,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 08:46:48,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:48,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:46:48,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:48,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 08:46:48,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:48,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-20 08:46:48,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:48,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:46:48,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:48,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:46:48,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:48,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:46:48,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:48,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:46:48,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:48,415 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-20 08:46:48,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:46:48,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648246860] [2024-11-20 08:46:48,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648246860] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:46:48,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:46:48,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 08:46:48,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802164215] [2024-11-20 08:46:48,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:46:48,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 08:46:48,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:46:48,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 08:46:48,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-20 08:46:48,417 INFO L87 Difference]: Start difference. First operand 344 states and 451 transitions. Second operand has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 10 states have internal predecessors, (65), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-20 08:46:48,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:46:48,916 INFO L93 Difference]: Finished difference Result 780 states and 1018 transitions. [2024-11-20 08:46:48,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-20 08:46:48,916 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 10 states have internal predecessors, (65), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 137 [2024-11-20 08:46:48,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:46:48,918 INFO L225 Difference]: With dead ends: 780 [2024-11-20 08:46:48,919 INFO L226 Difference]: Without dead ends: 439 [2024-11-20 08:46:48,919 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2024-11-20 08:46:48,920 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 348 mSDsluCounter, 797 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 08:46:48,920 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 986 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 08:46:48,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-11-20 08:46:48,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 316. [2024-11-20 08:46:48,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 297 states have (on average 1.2760942760942762) internal successors, (379), 297 states have internal predecessors, (379), 15 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-20 08:46:48,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 409 transitions. [2024-11-20 08:46:48,956 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 409 transitions. Word has length 137 [2024-11-20 08:46:48,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:46:48,956 INFO L471 AbstractCegarLoop]: Abstraction has 316 states and 409 transitions. [2024-11-20 08:46:48,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 10 states have internal predecessors, (65), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-20 08:46:48,956 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 409 transitions. [2024-11-20 08:46:48,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-20 08:46:48,957 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:46:48,958 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:46:48,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-20 08:46:48,958 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:46:48,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:46:48,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1050783877, now seen corresponding path program 1 times [2024-11-20 08:46:48,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:46:48,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905343485] [2024-11-20 08:46:48,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:46:48,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:46:48,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:49,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:46:49,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:49,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:46:49,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:49,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:46:49,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:49,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:46:49,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:49,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:46:49,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:49,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:46:49,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:49,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:46:49,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:49,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 08:46:49,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:49,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:46:49,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:49,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 08:46:49,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:49,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-20 08:46:49,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:49,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:46:49,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:49,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:46:49,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:49,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:46:49,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:49,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:46:49,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:49,617 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-20 08:46:49,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:46:49,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905343485] [2024-11-20 08:46:49,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905343485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:46:49,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:46:49,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 08:46:49,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848994197] [2024-11-20 08:46:49,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:46:49,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 08:46:49,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:46:49,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 08:46:49,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-20 08:46:49,619 INFO L87 Difference]: Start difference. First operand 316 states and 409 transitions. Second operand has 9 states, 8 states have (on average 8.375) internal successors, (67), 9 states have internal predecessors, (67), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-20 08:46:50,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:46:50,010 INFO L93 Difference]: Finished difference Result 670 states and 864 transitions. [2024-11-20 08:46:50,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 08:46:50,011 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.375) internal successors, (67), 9 states have internal predecessors, (67), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 139 [2024-11-20 08:46:50,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:46:50,013 INFO L225 Difference]: With dead ends: 670 [2024-11-20 08:46:50,013 INFO L226 Difference]: Without dead ends: 357 [2024-11-20 08:46:50,014 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-11-20 08:46:50,014 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 402 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 08:46:50,014 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [402 Valid, 615 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 08:46:50,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2024-11-20 08:46:50,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 316. [2024-11-20 08:46:50,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 297 states have (on average 1.2727272727272727) internal successors, (378), 297 states have internal predecessors, (378), 15 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-20 08:46:50,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 408 transitions. [2024-11-20 08:46:50,045 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 408 transitions. Word has length 139 [2024-11-20 08:46:50,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:46:50,045 INFO L471 AbstractCegarLoop]: Abstraction has 316 states and 408 transitions. [2024-11-20 08:46:50,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.375) internal successors, (67), 9 states have internal predecessors, (67), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-20 08:46:50,046 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 408 transitions. [2024-11-20 08:46:50,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-20 08:46:50,046 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:46:50,047 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:46:50,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-20 08:46:50,047 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:46:50,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:46:50,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1191332487, now seen corresponding path program 1 times [2024-11-20 08:46:50,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:46:50,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68109044] [2024-11-20 08:46:50,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:46:50,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:46:50,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 08:46:50,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [839306523] [2024-11-20 08:46:50,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:46:50,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 08:46:50,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 08:46:50,132 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 08:46:50,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-20 08:46:50,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:46:50,991 INFO L255 TraceCheckSpWp]: Trace formula consists of 619 conjuncts, 59 conjuncts are in the unsatisfiable core [2024-11-20 08:46:51,002 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 08:46:51,124 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-20 08:46:51,893 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-20 08:46:52,833 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 2 proven. 230 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2024-11-20 08:46:52,833 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 08:46:53,719 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 48