./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-66.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-66.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 4b23e56f7fb6f5a6e6082a7d837c764b9113a3019ea380051f143af60aabcf6a --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 08:49:08,555 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 08:49:08,616 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 08:49:08,622 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 08:49:08,622 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 08:49:08,651 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 08:49:08,652 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 08:49:08,652 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 08:49:08,653 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 08:49:08,653 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 08:49:08,653 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 08:49:08,654 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 08:49:08,654 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 08:49:08,655 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 08:49:08,655 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 08:49:08,655 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 08:49:08,658 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 08:49:08,658 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 08:49:08,658 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 08:49:08,659 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 08:49:08,659 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 08:49:08,659 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 08:49:08,660 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 08:49:08,660 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 08:49:08,660 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 08:49:08,660 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 08:49:08,661 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 08:49:08,661 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 08:49:08,661 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 08:49:08,661 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 08:49:08,662 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 08:49:08,662 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 08:49:08,662 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 08:49:08,662 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 08:49:08,663 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 08:49:08,663 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 08:49:08,664 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 08:49:08,664 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 08:49:08,664 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 08:49:08,664 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 08:49:08,665 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 08:49:08,665 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 08:49:08,665 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b23e56f7fb6f5a6e6082a7d837c764b9113a3019ea380051f143af60aabcf6a [2024-11-20 08:49:08,924 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 08:49:08,949 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 08:49:08,953 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 08:49:08,955 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 08:49:08,955 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 08:49:08,957 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-66.i [2024-11-20 08:49:10,354 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 08:49:10,543 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 08:49:10,543 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-66.i [2024-11-20 08:49:10,555 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ae44dd96/a2dbb6d8de5446b4857380cf83eac386/FLAGa52b837eb [2024-11-20 08:49:10,567 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ae44dd96/a2dbb6d8de5446b4857380cf83eac386 [2024-11-20 08:49:10,569 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 08:49:10,570 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 08:49:10,571 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 08:49:10,571 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 08:49:10,576 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 08:49:10,577 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:49:10" (1/1) ... [2024-11-20 08:49:10,577 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58c5f823 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:49:10, skipping insertion in model container [2024-11-20 08:49:10,578 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:49:10" (1/1) ... [2024-11-20 08:49:10,604 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 08:49:10,751 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-66.i[916,929] [2024-11-20 08:49:10,804 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 08:49:10,813 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 08:49:10,824 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-66.i[916,929] [2024-11-20 08:49:10,848 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 08:49:10,870 INFO L204 MainTranslator]: Completed translation [2024-11-20 08:49:10,870 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:49:10 WrapperNode [2024-11-20 08:49:10,871 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 08:49:10,872 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 08:49:10,872 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 08:49:10,872 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 08:49:10,878 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:49:10" (1/1) ... [2024-11-20 08:49:10,891 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:49:10" (1/1) ... [2024-11-20 08:49:10,954 INFO L138 Inliner]: procedures = 26, calls = 160, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 460 [2024-11-20 08:49:10,954 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 08:49:10,955 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 08:49:10,955 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 08:49:10,955 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 08:49:10,970 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:49:10" (1/1) ... [2024-11-20 08:49:10,971 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:49:10" (1/1) ... [2024-11-20 08:49:10,977 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:49:10" (1/1) ... [2024-11-20 08:49:11,021 INFO L175 MemorySlicer]: Split 123 memory accesses to 13 slices as follows [2, 7, 10, 8, 14, 8, 16, 8, 8, 14, 8, 13, 7]. 13 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 16 writes are split as follows [0, 2, 1, 1, 2, 1, 1, 1, 1, 1, 3, 1, 1]. [2024-11-20 08:49:11,024 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:49:10" (1/1) ... [2024-11-20 08:49:11,024 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:49:10" (1/1) ... [2024-11-20 08:49:11,038 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:49:10" (1/1) ... [2024-11-20 08:49:11,044 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:49:10" (1/1) ... [2024-11-20 08:49:11,047 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:49:10" (1/1) ... [2024-11-20 08:49:11,053 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:49:10" (1/1) ... [2024-11-20 08:49:11,062 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 08:49:11,063 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 08:49:11,067 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 08:49:11,067 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 08:49:11,068 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:49:10" (1/1) ... [2024-11-20 08:49:11,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 08:49:11,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 08:49:11,119 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 08:49:11,121 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 08:49:11,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 08:49:11,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 08:49:11,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 08:49:11,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-20 08:49:11,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-20 08:49:11,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-20 08:49:11,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-20 08:49:11,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-20 08:49:11,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-20 08:49:11,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-20 08:49:11,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-20 08:49:11,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-20 08:49:11,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-20 08:49:11,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-20 08:49:11,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 08:49:11,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 08:49:11,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-20 08:49:11,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-20 08:49:11,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-20 08:49:11,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-20 08:49:11,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-20 08:49:11,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-20 08:49:11,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-20 08:49:11,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-20 08:49:11,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-20 08:49:11,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-20 08:49:11,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-20 08:49:11,160 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 08:49:11,160 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 08:49:11,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 08:49:11,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 08:49:11,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-20 08:49:11,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-20 08:49:11,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-20 08:49:11,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-20 08:49:11,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-20 08:49:11,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-20 08:49:11,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-20 08:49:11,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-20 08:49:11,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-20 08:49:11,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-20 08:49:11,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-20 08:49:11,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 08:49:11,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 08:49:11,300 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 08:49:11,302 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 08:49:11,732 INFO L? ?]: Removed 107 outVars from TransFormulas that were not future-live. [2024-11-20 08:49:11,732 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 08:49:11,749 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 08:49:11,750 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 08:49:11,750 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:49:11 BoogieIcfgContainer [2024-11-20 08:49:11,750 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 08:49:11,753 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 08:49:11,753 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 08:49:11,756 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 08:49:11,757 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:49:10" (1/3) ... [2024-11-20 08:49:11,757 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@596bf162 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:49:11, skipping insertion in model container [2024-11-20 08:49:11,758 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:49:10" (2/3) ... [2024-11-20 08:49:11,758 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@596bf162 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:49:11, skipping insertion in model container [2024-11-20 08:49:11,758 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:49:11" (3/3) ... [2024-11-20 08:49:11,761 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-66.i [2024-11-20 08:49:11,776 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 08:49:11,777 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 08:49:11,834 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 08:49:11,840 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;@3d157dac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 08:49:11,840 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 08:49:11,843 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 69 states have (on average 1.4057971014492754) internal successors, (97), 70 states have internal predecessors, (97), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-20 08:49:11,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-20 08:49:11,855 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:49:11,855 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:11,856 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:49:11,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:49:11,861 INFO L85 PathProgramCache]: Analyzing trace with hash 566813761, now seen corresponding path program 1 times [2024-11-20 08:49:11,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:49:11,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911471513] [2024-11-20 08:49:11,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:49:11,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:49:12,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:12,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:49:12,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:12,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:49:12,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:12,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:49:12,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:12,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:49:12,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:12,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:49:12,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:12,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:49:12,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:12,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:49:12,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:12,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:49:12,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:12,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:49:12,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:12,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:49:12,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:12,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:49:12,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:12,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:49:12,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:12,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:49:12,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:12,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:49:12,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:12,322 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 08:49:12,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:49:12,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911471513] [2024-11-20 08:49:12,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911471513] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:49:12,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:49:12,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 08:49:12,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77833225] [2024-11-20 08:49:12,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:49:12,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 08:49:12,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:49:12,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 08:49:12,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 08:49:12,364 INFO L87 Difference]: Start difference. First operand has 86 states, 69 states have (on average 1.4057971014492754) internal successors, (97), 70 states have internal predecessors, (97), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-20 08:49:12,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:49:12,393 INFO L93 Difference]: Finished difference Result 165 states and 258 transitions. [2024-11-20 08:49:12,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 08:49:12,395 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 109 [2024-11-20 08:49:12,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:49:12,402 INFO L225 Difference]: With dead ends: 165 [2024-11-20 08:49:12,402 INFO L226 Difference]: Without dead ends: 82 [2024-11-20 08:49:12,405 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 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 08:49:12,409 INFO L432 NwaCegarLoop]: 118 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, 118 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 08:49:12,409 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:49:12,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-11-20 08:49:12,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2024-11-20 08:49:12,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 66 states have (on average 1.3636363636363635) internal successors, (90), 66 states have internal predecessors, (90), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-20 08:49:12,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 118 transitions. [2024-11-20 08:49:12,460 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 118 transitions. Word has length 109 [2024-11-20 08:49:12,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:49:12,461 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 118 transitions. [2024-11-20 08:49:12,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-20 08:49:12,462 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 118 transitions. [2024-11-20 08:49:12,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-20 08:49:12,468 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:49:12,468 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:12,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 08:49:12,468 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:49:12,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:49:12,469 INFO L85 PathProgramCache]: Analyzing trace with hash 584676645, now seen corresponding path program 1 times [2024-11-20 08:49:12,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:49:12,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457876311] [2024-11-20 08:49:12,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:49:12,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:49:12,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:12,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:49:12,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:12,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:49:12,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:12,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:49:12,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:12,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:49:12,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:12,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:49:12,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:12,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:49:12,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:12,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:49:12,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:12,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:49:12,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:12,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:49:12,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:12,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:49:12,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:12,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:49:12,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:12,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:49:12,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:12,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:49:12,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:12,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:49:12,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:12,807 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 08:49:12,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:49:12,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457876311] [2024-11-20 08:49:12,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457876311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:49:12,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:49:12,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 08:49:12,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121012706] [2024-11-20 08:49:12,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:49:12,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 08:49:12,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:49:12,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 08:49:12,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 08:49:12,814 INFO L87 Difference]: Start difference. First operand 82 states and 118 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-20 08:49:12,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:49:12,869 INFO L93 Difference]: Finished difference Result 164 states and 237 transitions. [2024-11-20 08:49:12,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 08:49:12,870 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 109 [2024-11-20 08:49:12,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:49:12,873 INFO L225 Difference]: With dead ends: 164 [2024-11-20 08:49:12,873 INFO L226 Difference]: Without dead ends: 85 [2024-11-20 08:49:12,875 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 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 08:49:12,876 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 1 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:49:12,877 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 334 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:49:12,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-20 08:49:12,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 84. [2024-11-20 08:49:12,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 68 states have (on average 1.3529411764705883) internal successors, (92), 68 states have internal predecessors, (92), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-20 08:49:12,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 120 transitions. [2024-11-20 08:49:12,913 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 120 transitions. Word has length 109 [2024-11-20 08:49:12,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:49:12,918 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 120 transitions. [2024-11-20 08:49:12,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-20 08:49:12,919 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 120 transitions. [2024-11-20 08:49:12,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-20 08:49:12,920 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:49:12,920 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:12,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 08:49:12,921 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:49:12,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:49:12,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1935283289, now seen corresponding path program 1 times [2024-11-20 08:49:12,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:49:12,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995416670] [2024-11-20 08:49:12,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:49:12,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:49:12,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:13,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:49:13,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:13,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:49:13,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:13,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:49:13,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:13,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:49:13,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:13,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:49:13,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:13,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:49:13,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:13,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:49:13,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:13,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:49:13,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:13,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:49:13,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:13,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:49:13,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:13,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:49:13,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:13,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:49:13,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:13,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:49:13,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:13,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:49:13,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:13,159 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 08:49:13,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:49:13,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995416670] [2024-11-20 08:49:13,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995416670] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:49:13,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:49:13,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 08:49:13,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686760499] [2024-11-20 08:49:13,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:49:13,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 08:49:13,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:49:13,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 08:49:13,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 08:49:13,165 INFO L87 Difference]: Start difference. First operand 84 states and 120 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-20 08:49:13,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:49:13,201 INFO L93 Difference]: Finished difference Result 168 states and 241 transitions. [2024-11-20 08:49:13,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 08:49:13,202 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 109 [2024-11-20 08:49:13,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:49:13,203 INFO L225 Difference]: With dead ends: 168 [2024-11-20 08:49:13,203 INFO L226 Difference]: Without dead ends: 87 [2024-11-20 08:49:13,204 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 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 08:49:13,205 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 1 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:49:13,205 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 337 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:49:13,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-20 08:49:13,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 86. [2024-11-20 08:49:13,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 70 states have (on average 1.3428571428571427) internal successors, (94), 70 states have internal predecessors, (94), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-20 08:49:13,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 122 transitions. [2024-11-20 08:49:13,219 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 122 transitions. Word has length 109 [2024-11-20 08:49:13,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:49:13,222 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 122 transitions. [2024-11-20 08:49:13,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-20 08:49:13,223 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 122 transitions. [2024-11-20 08:49:13,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-20 08:49:13,227 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:49:13,228 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:13,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 08:49:13,228 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:49:13,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:49:13,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1933436247, now seen corresponding path program 1 times [2024-11-20 08:49:13,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:49:13,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835371687] [2024-11-20 08:49:13,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:49:13,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:49:13,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:13,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:49:13,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:13,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:49:13,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:13,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:49:13,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:13,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:49:13,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:13,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:49:13,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:13,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:49:13,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:13,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:49:13,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:13,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:49:13,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:13,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:49:13,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:13,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:49:13,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:13,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:49:13,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:13,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:49:13,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:13,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:49:13,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:13,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:49:13,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:13,743 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 08:49:13,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:49:13,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835371687] [2024-11-20 08:49:13,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835371687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:49:13,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:49:13,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 08:49:13,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704436277] [2024-11-20 08:49:13,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:49:13,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 08:49:13,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:49:13,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 08:49:13,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-20 08:49:13,747 INFO L87 Difference]: Start difference. First operand 86 states and 122 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-20 08:49:13,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:49:13,897 INFO L93 Difference]: Finished difference Result 252 states and 360 transitions. [2024-11-20 08:49:13,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 08:49:13,897 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 109 [2024-11-20 08:49:13,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:49:13,900 INFO L225 Difference]: With dead ends: 252 [2024-11-20 08:49:13,900 INFO L226 Difference]: Without dead ends: 169 [2024-11-20 08:49:13,901 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-20 08:49:13,902 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 77 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 08:49:13,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 363 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 08:49:13,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-11-20 08:49:13,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 161. [2024-11-20 08:49:13,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 130 states have (on average 1.3307692307692307) internal successors, (173), 130 states have internal predecessors, (173), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-20 08:49:13,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 229 transitions. [2024-11-20 08:49:13,918 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 229 transitions. Word has length 109 [2024-11-20 08:49:13,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:49:13,919 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 229 transitions. [2024-11-20 08:49:13,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-20 08:49:13,919 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 229 transitions. [2024-11-20 08:49:13,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-20 08:49:13,921 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:49:13,921 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:13,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 08:49:13,922 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:49:13,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:49:13,922 INFO L85 PathProgramCache]: Analyzing trace with hash 716307048, now seen corresponding path program 1 times [2024-11-20 08:49:13,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:49:13,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547348313] [2024-11-20 08:49:13,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:49:13,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:49:14,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:15,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:49:15,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:15,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:49:15,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:15,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:49:15,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:15,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:49:15,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:15,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:49:15,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:15,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:49:15,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:15,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:49:15,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:15,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:49:15,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:15,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:49:15,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:15,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:49:15,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:15,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:49:15,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:15,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:49:15,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:15,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:49:15,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:15,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:49:15,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:15,805 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 08:49:15,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:49:15,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547348313] [2024-11-20 08:49:15,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547348313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:49:15,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:49:15,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 08:49:15,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840387269] [2024-11-20 08:49:15,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:49:15,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 08:49:15,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:49:15,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 08:49:15,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-20 08:49:15,809 INFO L87 Difference]: Start difference. First operand 161 states and 229 transitions. Second operand has 12 states, 10 states have (on average 4.3) internal successors, (43), 12 states have internal predecessors, (43), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-20 08:49:16,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:49:16,327 INFO L93 Difference]: Finished difference Result 415 states and 594 transitions. [2024-11-20 08:49:16,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 08:49:16,328 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 4.3) internal successors, (43), 12 states have internal predecessors, (43), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) Word has length 110 [2024-11-20 08:49:16,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:49:16,330 INFO L225 Difference]: With dead ends: 415 [2024-11-20 08:49:16,330 INFO L226 Difference]: Without dead ends: 257 [2024-11-20 08:49:16,335 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2024-11-20 08:49:16,336 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 529 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 08:49:16,336 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [529 Valid, 486 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 08:49:16,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2024-11-20 08:49:16,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 177. [2024-11-20 08:49:16,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 146 states have (on average 1.3424657534246576) internal successors, (196), 146 states have internal predecessors, (196), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-20 08:49:16,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 252 transitions. [2024-11-20 08:49:16,369 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 252 transitions. Word has length 110 [2024-11-20 08:49:16,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:49:16,370 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 252 transitions. [2024-11-20 08:49:16,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 4.3) internal successors, (43), 12 states have internal predecessors, (43), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-20 08:49:16,371 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 252 transitions. [2024-11-20 08:49:16,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-20 08:49:16,373 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:49:16,373 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:16,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 08:49:16,376 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:49:16,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:49:16,377 INFO L85 PathProgramCache]: Analyzing trace with hash 129501034, now seen corresponding path program 1 times [2024-11-20 08:49:16,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:49:16,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772574232] [2024-11-20 08:49:16,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:49:16,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:49:16,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:16,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:49:17,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:17,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:49:17,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:17,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:49:17,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:17,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:49:17,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:17,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:49:17,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:17,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:49:17,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:17,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:49:17,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:17,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:49:17,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:17,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:49:17,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:17,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:49:17,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:17,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:49:17,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:17,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:49:17,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:17,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:49:17,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:17,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:49:17,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:17,035 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 08:49:17,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:49:17,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772574232] [2024-11-20 08:49:17,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772574232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:49:17,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:49:17,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 08:49:17,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167919753] [2024-11-20 08:49:17,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:49:17,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 08:49:17,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:49:17,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 08:49:17,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-20 08:49:17,038 INFO L87 Difference]: Start difference. First operand 177 states and 252 transitions. Second operand has 9 states, 8 states have (on average 5.375) internal successors, (43), 9 states have internal predecessors, (43), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-20 08:49:17,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:49:17,603 INFO L93 Difference]: Finished difference Result 399 states and 559 transitions. [2024-11-20 08:49:17,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 08:49:17,604 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 9 states have internal predecessors, (43), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 110 [2024-11-20 08:49:17,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:49:17,606 INFO L225 Difference]: With dead ends: 399 [2024-11-20 08:49:17,606 INFO L226 Difference]: Without dead ends: 308 [2024-11-20 08:49:17,607 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-11-20 08:49:17,608 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 497 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 08:49:17,608 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [497 Valid, 469 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 08:49:17,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2024-11-20 08:49:17,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 232. [2024-11-20 08:49:17,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 184 states have (on average 1.309782608695652) internal successors, (241), 185 states have internal predecessors, (241), 42 states have call successors, (42), 5 states have call predecessors, (42), 5 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-20 08:49:17,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 325 transitions. [2024-11-20 08:49:17,636 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 325 transitions. Word has length 110 [2024-11-20 08:49:17,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:49:17,636 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 325 transitions. [2024-11-20 08:49:17,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 9 states have internal predecessors, (43), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-20 08:49:17,636 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 325 transitions. [2024-11-20 08:49:17,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-20 08:49:17,638 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:49:17,638 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:17,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 08:49:17,638 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:49:17,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:49:17,638 INFO L85 PathProgramCache]: Analyzing trace with hash -872040854, now seen corresponding path program 1 times [2024-11-20 08:49:17,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:49:17,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604139344] [2024-11-20 08:49:17,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:49:17,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:49:17,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:18,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:49:18,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:18,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:49:18,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:18,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:49:18,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:18,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:49:18,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:18,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:49:18,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:18,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:49:18,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:18,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:49:18,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:18,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:49:18,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:18,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:49:18,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:18,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:49:18,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:18,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:49:18,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:18,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:49:18,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:18,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:49:18,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:18,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:49:18,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:18,209 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 08:49:18,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:49:18,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604139344] [2024-11-20 08:49:18,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604139344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:49:18,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:49:18,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 08:49:18,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958427933] [2024-11-20 08:49:18,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:49:18,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 08:49:18,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:49:18,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 08:49:18,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-20 08:49:18,211 INFO L87 Difference]: Start difference. First operand 232 states and 325 transitions. Second operand has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 10 states have internal predecessors, (43), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-20 08:49:18,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:49:18,938 INFO L93 Difference]: Finished difference Result 570 states and 794 transitions. [2024-11-20 08:49:18,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 08:49:18,939 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 10 states have internal predecessors, (43), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 110 [2024-11-20 08:49:18,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:49:18,945 INFO L225 Difference]: With dead ends: 570 [2024-11-20 08:49:18,945 INFO L226 Difference]: Without dead ends: 368 [2024-11-20 08:49:18,946 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-11-20 08:49:18,946 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 327 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 08:49:18,947 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 743 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 08:49:18,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2024-11-20 08:49:18,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 226. [2024-11-20 08:49:18,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 178 states have (on average 1.2865168539325842) internal successors, (229), 179 states have internal predecessors, (229), 42 states have call successors, (42), 5 states have call predecessors, (42), 5 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-20 08:49:18,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 313 transitions. [2024-11-20 08:49:18,993 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 313 transitions. Word has length 110 [2024-11-20 08:49:18,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:49:18,996 INFO L471 AbstractCegarLoop]: Abstraction has 226 states and 313 transitions. [2024-11-20 08:49:18,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 10 states have internal predecessors, (43), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-20 08:49:18,996 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 313 transitions. [2024-11-20 08:49:18,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-20 08:49:18,998 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:49:18,998 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:18,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 08:49:18,998 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:49:18,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:49:18,999 INFO L85 PathProgramCache]: Analyzing trace with hash -2060584621, now seen corresponding path program 1 times [2024-11-20 08:49:18,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:49:18,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159237671] [2024-11-20 08:49:18,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:49:19,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:49:19,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:19,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:49:19,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:19,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:49:19,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:19,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:49:19,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:19,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:49:19,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:19,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:49:19,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:19,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:49:19,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:19,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:49:19,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:19,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:49:19,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:19,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:49:19,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:19,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:49:19,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:19,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:49:19,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:19,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:49:19,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:19,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:49:19,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:19,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:49:19,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:19,188 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 08:49:19,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:49:19,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159237671] [2024-11-20 08:49:19,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159237671] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:49:19,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:49:19,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 08:49:19,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923079242] [2024-11-20 08:49:19,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:49:19,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 08:49:19,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:49:19,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 08:49:19,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 08:49:19,190 INFO L87 Difference]: Start difference. First operand 226 states and 313 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-20 08:49:19,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:49:19,275 INFO L93 Difference]: Finished difference Result 487 states and 670 transitions. [2024-11-20 08:49:19,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 08:49:19,276 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 111 [2024-11-20 08:49:19,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:49:19,278 INFO L225 Difference]: With dead ends: 487 [2024-11-20 08:49:19,278 INFO L226 Difference]: Without dead ends: 297 [2024-11-20 08:49:19,279 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 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 08:49:19,279 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 69 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:49:19,279 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 483 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:49:19,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2024-11-20 08:49:19,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 294. [2024-11-20 08:49:19,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 239 states have (on average 1.288702928870293) internal successors, (308), 241 states have internal predecessors, (308), 46 states have call successors, (46), 8 states have call predecessors, (46), 8 states have return successors, (46), 44 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-20 08:49:19,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 400 transitions. [2024-11-20 08:49:19,313 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 400 transitions. Word has length 111 [2024-11-20 08:49:19,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:49:19,314 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 400 transitions. [2024-11-20 08:49:19,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-20 08:49:19,314 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 400 transitions. [2024-11-20 08:49:19,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-20 08:49:19,315 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:49:19,315 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:19,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 08:49:19,315 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:49:19,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:49:19,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1213314321, now seen corresponding path program 1 times [2024-11-20 08:49:19,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:49:19,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105210396] [2024-11-20 08:49:19,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:49:19,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:49:19,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:19,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:49:19,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:19,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:49:19,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:19,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:49:19,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:19,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:49:19,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:19,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:49:19,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:19,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:49:19,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:19,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:49:19,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:19,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:49:19,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:19,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:49:19,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:19,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:49:19,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:19,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:49:19,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:19,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:49:19,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:19,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:49:19,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:19,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:49:19,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:19,544 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 08:49:19,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:49:19,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105210396] [2024-11-20 08:49:19,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105210396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:49:19,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:49:19,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 08:49:19,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356758483] [2024-11-20 08:49:19,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:49:19,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 08:49:19,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:49:19,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 08:49:19,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 08:49:19,548 INFO L87 Difference]: Start difference. First operand 294 states and 400 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-20 08:49:19,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:49:19,638 INFO L93 Difference]: Finished difference Result 554 states and 756 transitions. [2024-11-20 08:49:19,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 08:49:19,638 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 111 [2024-11-20 08:49:19,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:49:19,640 INFO L225 Difference]: With dead ends: 554 [2024-11-20 08:49:19,640 INFO L226 Difference]: Without dead ends: 294 [2024-11-20 08:49:19,641 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 08:49:19,641 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 71 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:49:19,642 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 391 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:49:19,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2024-11-20 08:49:19,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 286. [2024-11-20 08:49:19,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 231 states have (on average 1.2813852813852813) internal successors, (296), 233 states have internal predecessors, (296), 46 states have call successors, (46), 8 states have call predecessors, (46), 8 states have return successors, (46), 44 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-20 08:49:19,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 388 transitions. [2024-11-20 08:49:19,683 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 388 transitions. Word has length 111 [2024-11-20 08:49:19,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:49:19,683 INFO L471 AbstractCegarLoop]: Abstraction has 286 states and 388 transitions. [2024-11-20 08:49:19,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-20 08:49:19,684 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 388 transitions. [2024-11-20 08:49:19,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-20 08:49:19,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:49:19,686 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:19,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 08:49:19,687 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:49:19,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:49:19,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1141588530, now seen corresponding path program 1 times [2024-11-20 08:49:19,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:49:19,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590510174] [2024-11-20 08:49:19,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:49:19,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:49:19,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:19,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:49:19,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:19,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:49:19,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:19,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:49:19,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:19,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:49:19,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:19,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:49:19,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:19,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:49:19,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:19,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:49:19,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:19,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:49:19,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:19,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:49:19,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:19,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:49:19,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:19,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:49:19,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:19,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:49:19,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:19,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:49:19,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:19,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:49:19,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:19,775 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 08:49:19,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:49:19,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590510174] [2024-11-20 08:49:19,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590510174] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:49:19,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:49:19,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 08:49:19,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200537801] [2024-11-20 08:49:19,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:49:19,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 08:49:19,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:49:19,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 08:49:19,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 08:49:19,778 INFO L87 Difference]: Start difference. First operand 286 states and 388 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-20 08:49:19,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:49:19,833 INFO L93 Difference]: Finished difference Result 535 states and 730 transitions. [2024-11-20 08:49:19,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 08:49:19,833 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 113 [2024-11-20 08:49:19,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:49:19,836 INFO L225 Difference]: With dead ends: 535 [2024-11-20 08:49:19,836 INFO L226 Difference]: Without dead ends: 289 [2024-11-20 08:49:19,836 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 08:49:19,837 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 0 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:49:19,838 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 227 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:49:19,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2024-11-20 08:49:19,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 289. [2024-11-20 08:49:19,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 234 states have (on average 1.2777777777777777) internal successors, (299), 236 states have internal predecessors, (299), 46 states have call successors, (46), 8 states have call predecessors, (46), 8 states have return successors, (46), 44 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-20 08:49:19,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 391 transitions. [2024-11-20 08:49:19,887 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 391 transitions. Word has length 113 [2024-11-20 08:49:19,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:49:19,887 INFO L471 AbstractCegarLoop]: Abstraction has 289 states and 391 transitions. [2024-11-20 08:49:19,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-20 08:49:19,888 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 391 transitions. [2024-11-20 08:49:19,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-20 08:49:19,889 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:49:19,889 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:19,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 08:49:19,889 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:49:19,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:49:19,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1728394544, now seen corresponding path program 1 times [2024-11-20 08:49:19,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:49:19,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67229463] [2024-11-20 08:49:19,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:49:19,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:49:19,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:20,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:49:20,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:20,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:49:20,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:20,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:49:20,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:20,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:49:20,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:20,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:49:20,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:20,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:49:20,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:20,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:49:20,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:20,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:49:20,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:20,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:49:20,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:20,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:49:20,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:20,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:49:20,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:20,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:49:20,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:20,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:49:20,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:20,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:49:20,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:20,082 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 08:49:20,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:49:20,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67229463] [2024-11-20 08:49:20,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67229463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:49:20,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:49:20,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 08:49:20,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374570843] [2024-11-20 08:49:20,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:49:20,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 08:49:20,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:49:20,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 08:49:20,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 08:49:20,085 INFO L87 Difference]: Start difference. First operand 289 states and 391 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-20 08:49:20,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:49:20,140 INFO L93 Difference]: Finished difference Result 547 states and 742 transitions. [2024-11-20 08:49:20,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 08:49:20,140 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 113 [2024-11-20 08:49:20,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:49:20,142 INFO L225 Difference]: With dead ends: 547 [2024-11-20 08:49:20,142 INFO L226 Difference]: Without dead ends: 298 [2024-11-20 08:49:20,143 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 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 08:49:20,143 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 0 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:49:20,144 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 443 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:49:20,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2024-11-20 08:49:20,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2024-11-20 08:49:20,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 243 states have (on average 1.2674897119341564) internal successors, (308), 245 states have internal predecessors, (308), 46 states have call successors, (46), 8 states have call predecessors, (46), 8 states have return successors, (46), 44 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-20 08:49:20,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 400 transitions. [2024-11-20 08:49:20,183 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 400 transitions. Word has length 113 [2024-11-20 08:49:20,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:49:20,183 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 400 transitions. [2024-11-20 08:49:20,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-20 08:49:20,184 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 400 transitions. [2024-11-20 08:49:20,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-20 08:49:20,185 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:49:20,185 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:20,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 08:49:20,185 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:49:20,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:49:20,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1336855875, now seen corresponding path program 1 times [2024-11-20 08:49:20,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:49:20,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436844355] [2024-11-20 08:49:20,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:49:20,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:49:20,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:21,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:49:21,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:21,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:49:21,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:21,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:49:21,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:21,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:49:21,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:21,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:49:21,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:21,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:49:21,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:21,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:49:21,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:21,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:49:21,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:21,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:49:21,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:21,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:49:21,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:21,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:49:21,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:21,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:49:21,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:21,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:49:21,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:21,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:49:21,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:21,783 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 08:49:21,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:49:21,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436844355] [2024-11-20 08:49:21,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436844355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:49:21,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:49:21,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-20 08:49:21,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924055560] [2024-11-20 08:49:21,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:49:21,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-20 08:49:21,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:49:21,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-20 08:49:21,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=314, Unknown=0, NotChecked=0, Total=380 [2024-11-20 08:49:21,786 INFO L87 Difference]: Start difference. First operand 298 states and 400 transitions. Second operand has 20 states, 16 states have (on average 2.875) internal successors, (46), 19 states have internal predecessors, (46), 9 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 7 states have call predecessors, (14), 9 states have call successors, (14) [2024-11-20 08:49:24,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:49:24,726 INFO L93 Difference]: Finished difference Result 844 states and 1128 transitions. [2024-11-20 08:49:24,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-20 08:49:24,727 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 16 states have (on average 2.875) internal successors, (46), 19 states have internal predecessors, (46), 9 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 7 states have call predecessors, (14), 9 states have call successors, (14) Word has length 113 [2024-11-20 08:49:24,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:49:24,732 INFO L225 Difference]: With dead ends: 844 [2024-11-20 08:49:24,732 INFO L226 Difference]: Without dead ends: 673 [2024-11-20 08:49:24,733 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 428 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=470, Invalid=1882, Unknown=0, NotChecked=0, Total=2352 [2024-11-20 08:49:24,734 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 1129 mSDsluCounter, 972 mSDsCounter, 0 mSdLazyCounter, 1355 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1129 SdHoareTripleChecker+Valid, 1123 SdHoareTripleChecker+Invalid, 1578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 1355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-20 08:49:24,734 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1129 Valid, 1123 Invalid, 1578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 1355 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-20 08:49:24,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2024-11-20 08:49:24,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 402. [2024-11-20 08:49:24,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 339 states have (on average 1.2743362831858407) internal successors, (432), 343 states have internal predecessors, (432), 50 states have call successors, (50), 12 states have call predecessors, (50), 12 states have return successors, (50), 46 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-20 08:49:24,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 532 transitions. [2024-11-20 08:49:24,780 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 532 transitions. Word has length 113 [2024-11-20 08:49:24,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:49:24,780 INFO L471 AbstractCegarLoop]: Abstraction has 402 states and 532 transitions. [2024-11-20 08:49:24,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 16 states have (on average 2.875) internal successors, (46), 19 states have internal predecessors, (46), 9 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 7 states have call predecessors, (14), 9 states have call successors, (14) [2024-11-20 08:49:24,781 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 532 transitions. [2024-11-20 08:49:24,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-20 08:49:24,782 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:49:24,782 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:24,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 08:49:24,783 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:49:24,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:49:24,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1369763519, now seen corresponding path program 1 times [2024-11-20 08:49:24,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:49:24,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643937389] [2024-11-20 08:49:24,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:49:24,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:49:24,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:25,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:49:25,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:25,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:49:25,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:25,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:49:25,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:25,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:49:25,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:25,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:49:25,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:25,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:49:25,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:25,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:49:25,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:25,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:49:25,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:25,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:49:25,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:25,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:49:25,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:25,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:49:25,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:25,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:49:25,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:25,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:49:25,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:25,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:49:25,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:25,578 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 08:49:25,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:49:25,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643937389] [2024-11-20 08:49:25,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643937389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:49:25,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:49:25,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-20 08:49:25,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246091170] [2024-11-20 08:49:25,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:49:25,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 08:49:25,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:49:25,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 08:49:25,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-20 08:49:25,580 INFO L87 Difference]: Start difference. First operand 402 states and 532 transitions. Second operand has 11 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-20 08:49:25,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:49:25,920 INFO L93 Difference]: Finished difference Result 741 states and 990 transitions. [2024-11-20 08:49:25,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 08:49:25,920 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 113 [2024-11-20 08:49:25,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:49:25,923 INFO L225 Difference]: With dead ends: 741 [2024-11-20 08:49:25,923 INFO L226 Difference]: Without dead ends: 474 [2024-11-20 08:49:25,924 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-11-20 08:49:25,924 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 247 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 729 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 08:49:25,927 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 729 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 08:49:25,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2024-11-20 08:49:25,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 398. [2024-11-20 08:49:25,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 335 states have (on average 1.2716417910447761) internal successors, (426), 339 states have internal predecessors, (426), 50 states have call successors, (50), 12 states have call predecessors, (50), 12 states have return successors, (50), 46 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-20 08:49:25,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 526 transitions. [2024-11-20 08:49:25,969 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 526 transitions. Word has length 113 [2024-11-20 08:49:25,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:49:25,969 INFO L471 AbstractCegarLoop]: Abstraction has 398 states and 526 transitions. [2024-11-20 08:49:25,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-20 08:49:25,969 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 526 transitions. [2024-11-20 08:49:25,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-20 08:49:25,970 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:49:25,971 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:25,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-20 08:49:25,971 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:49:25,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:49:25,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1567346285, now seen corresponding path program 1 times [2024-11-20 08:49:25,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:49:25,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135725971] [2024-11-20 08:49:25,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:49:25,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:49:26,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:26,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:49:26,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:26,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:49:26,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:26,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:49:26,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:26,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:49:26,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:26,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:49:26,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:26,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:49:26,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:26,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:49:26,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:26,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:49:26,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:26,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:49:26,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:26,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:49:26,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:26,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:49:26,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:26,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:49:26,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:26,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:49:26,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:26,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:49:26,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:26,520 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 08:49:26,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:49:26,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135725971] [2024-11-20 08:49:26,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135725971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:49:26,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:49:26,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 08:49:26,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209374528] [2024-11-20 08:49:26,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:49:26,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 08:49:26,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:49:26,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 08:49:26,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-20 08:49:26,522 INFO L87 Difference]: Start difference. First operand 398 states and 526 transitions. Second operand has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 10 states have internal predecessors, (48), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-20 08:49:26,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:49:26,873 INFO L93 Difference]: Finished difference Result 774 states and 1026 transitions. [2024-11-20 08:49:26,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 08:49:26,874 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 10 states have internal predecessors, (48), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 115 [2024-11-20 08:49:26,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:49:26,877 INFO L225 Difference]: With dead ends: 774 [2024-11-20 08:49:26,878 INFO L226 Difference]: Without dead ends: 511 [2024-11-20 08:49:26,878 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2024-11-20 08:49:26,879 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 210 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 08:49:26,879 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 608 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 08:49:26,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2024-11-20 08:49:26,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 373. [2024-11-20 08:49:26,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 327 states have (on average 1.2966360856269112) internal successors, (424), 330 states have internal predecessors, (424), 36 states have call successors, (36), 9 states have call predecessors, (36), 9 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-20 08:49:26,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 496 transitions. [2024-11-20 08:49:26,934 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 496 transitions. Word has length 115 [2024-11-20 08:49:26,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:49:26,934 INFO L471 AbstractCegarLoop]: Abstraction has 373 states and 496 transitions. [2024-11-20 08:49:26,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 10 states have internal predecessors, (48), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-20 08:49:26,935 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 496 transitions. [2024-11-20 08:49:26,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-20 08:49:26,936 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:49:26,936 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:26,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-20 08:49:26,937 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:49:26,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:49:26,938 INFO L85 PathProgramCache]: Analyzing trace with hash 2043987111, now seen corresponding path program 1 times [2024-11-20 08:49:26,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:49:26,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044912027] [2024-11-20 08:49:26,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:49:26,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:49:26,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:27,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:49:27,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:27,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:49:27,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:27,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:49:27,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:27,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:49:27,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:27,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:49:27,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:27,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:49:27,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:27,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:49:27,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:27,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:49:27,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:27,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:49:27,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:27,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:49:27,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:27,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:49:27,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:27,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:49:27,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:27,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:49:27,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:27,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:49:27,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:27,552 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 08:49:27,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:49:27,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044912027] [2024-11-20 08:49:27,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044912027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:49:27,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:49:27,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 08:49:27,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134293793] [2024-11-20 08:49:27,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:49:27,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 08:49:27,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:49:27,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 08:49:27,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-20 08:49:27,556 INFO L87 Difference]: Start difference. First operand 373 states and 496 transitions. Second operand has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 10 states have internal predecessors, (48), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-20 08:49:28,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:49:28,085 INFO L93 Difference]: Finished difference Result 883 states and 1177 transitions. [2024-11-20 08:49:28,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-20 08:49:28,086 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 10 states have internal predecessors, (48), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 115 [2024-11-20 08:49:28,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:49:28,089 INFO L225 Difference]: With dead ends: 883 [2024-11-20 08:49:28,089 INFO L226 Difference]: Without dead ends: 604 [2024-11-20 08:49:28,091 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2024-11-20 08:49:28,092 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 336 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 08:49:28,092 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 847 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 08:49:28,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2024-11-20 08:49:28,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 390. [2024-11-20 08:49:28,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 344 states have (on average 1.2936046511627908) internal successors, (445), 347 states have internal predecessors, (445), 36 states have call successors, (36), 9 states have call predecessors, (36), 9 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-20 08:49:28,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 517 transitions. [2024-11-20 08:49:28,136 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 517 transitions. Word has length 115 [2024-11-20 08:49:28,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:49:28,136 INFO L471 AbstractCegarLoop]: Abstraction has 390 states and 517 transitions. [2024-11-20 08:49:28,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 10 states have internal predecessors, (48), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-20 08:49:28,137 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 517 transitions. [2024-11-20 08:49:28,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-20 08:49:28,139 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:49:28,139 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:28,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-20 08:49:28,139 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:49:28,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:49:28,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1302366181, now seen corresponding path program 1 times [2024-11-20 08:49:28,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:49:28,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695045985] [2024-11-20 08:49:28,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:49:28,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:49:28,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:28,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:49:28,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:28,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:49:28,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:28,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:49:28,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:28,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:49:28,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:28,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:49:28,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:28,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:49:28,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:28,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:49:28,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:28,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:49:28,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:28,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:49:28,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:28,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:49:28,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:28,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:49:28,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:28,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:49:28,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:28,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:49:28,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:28,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:49:28,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:28,591 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 08:49:28,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:49:28,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695045985] [2024-11-20 08:49:28,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695045985] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:49:28,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:49:28,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 08:49:28,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414589322] [2024-11-20 08:49:28,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:49:28,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 08:49:28,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:49:28,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 08:49:28,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-20 08:49:28,592 INFO L87 Difference]: Start difference. First operand 390 states and 517 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-20 08:49:29,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:49:29,289 INFO L93 Difference]: Finished difference Result 1040 states and 1379 transitions. [2024-11-20 08:49:29,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-20 08:49:29,290 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 115 [2024-11-20 08:49:29,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:49:29,294 INFO L225 Difference]: With dead ends: 1040 [2024-11-20 08:49:29,294 INFO L226 Difference]: Without dead ends: 761 [2024-11-20 08:49:29,295 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-20 08:49:29,296 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 390 mSDsluCounter, 686 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 906 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 08:49:29,296 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 906 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 08:49:29,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2024-11-20 08:49:29,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 402. [2024-11-20 08:49:29,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 356 states have (on average 1.300561797752809) internal successors, (463), 359 states have internal predecessors, (463), 36 states have call successors, (36), 9 states have call predecessors, (36), 9 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-20 08:49:29,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 535 transitions. [2024-11-20 08:49:29,337 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 535 transitions. Word has length 115 [2024-11-20 08:49:29,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:49:29,337 INFO L471 AbstractCegarLoop]: Abstraction has 402 states and 535 transitions. [2024-11-20 08:49:29,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-20 08:49:29,338 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 535 transitions. [2024-11-20 08:49:29,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-20 08:49:29,339 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:49:29,339 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:29,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-20 08:49:29,339 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:49:29,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:49:29,340 INFO L85 PathProgramCache]: Analyzing trace with hash -503072153, now seen corresponding path program 1 times [2024-11-20 08:49:29,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:49:29,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968645472] [2024-11-20 08:49:29,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:49:29,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:49:29,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:30,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:49:30,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:30,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:49:30,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:30,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:49:30,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:30,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:49:30,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:30,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:49:30,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:30,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:49:30,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:30,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:49:30,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:30,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:49:30,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:30,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:49:30,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:30,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:49:30,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:30,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:49:30,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:30,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:49:30,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:30,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:49:30,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:30,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:49:30,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:30,307 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 08:49:30,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:49:30,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968645472] [2024-11-20 08:49:30,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968645472] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:49:30,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:49:30,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-20 08:49:30,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758571440] [2024-11-20 08:49:30,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:49:30,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 08:49:30,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:49:30,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 08:49:30,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-20 08:49:30,313 INFO L87 Difference]: Start difference. First operand 402 states and 535 transitions. Second operand has 13 states, 12 states have (on average 4.0) internal successors, (48), 13 states have internal predecessors, (48), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-20 08:49:31,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:49:31,310 INFO L93 Difference]: Finished difference Result 966 states and 1296 transitions. [2024-11-20 08:49:31,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-20 08:49:31,311 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.0) internal successors, (48), 13 states have internal predecessors, (48), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 115 [2024-11-20 08:49:31,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:49:31,314 INFO L225 Difference]: With dead ends: 966 [2024-11-20 08:49:31,314 INFO L226 Difference]: Without dead ends: 675 [2024-11-20 08:49:31,315 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=175, Invalid=527, Unknown=0, NotChecked=0, Total=702 [2024-11-20 08:49:31,316 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 608 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 608 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-20 08:49:31,316 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [608 Valid, 725 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-20 08:49:31,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2024-11-20 08:49:31,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 386. [2024-11-20 08:49:31,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 340 states have (on average 1.285294117647059) internal successors, (437), 343 states have internal predecessors, (437), 36 states have call successors, (36), 9 states have call predecessors, (36), 9 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-20 08:49:31,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 509 transitions. [2024-11-20 08:49:31,363 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 509 transitions. Word has length 115 [2024-11-20 08:49:31,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:49:31,366 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 509 transitions. [2024-11-20 08:49:31,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.0) internal successors, (48), 13 states have internal predecessors, (48), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-20 08:49:31,366 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 509 transitions. [2024-11-20 08:49:31,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-20 08:49:31,367 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:49:31,368 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:31,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-20 08:49:31,368 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:49:31,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:49:31,368 INFO L85 PathProgramCache]: Analyzing trace with hash 754447436, now seen corresponding path program 1 times [2024-11-20 08:49:31,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:49:31,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721630819] [2024-11-20 08:49:31,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:49:31,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:49:31,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:31,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:49:31,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:31,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:49:31,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:32,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:49:32,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:32,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:49:32,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:32,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:49:32,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:32,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:49:32,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:32,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:49:32,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:32,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:49:32,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:32,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:49:32,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:32,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:49:32,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:32,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:49:32,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:32,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:49:32,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:32,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:49:32,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:32,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:49:32,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:32,039 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 08:49:32,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:49:32,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721630819] [2024-11-20 08:49:32,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721630819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:49:32,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:49:32,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 08:49:32,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023486762] [2024-11-20 08:49:32,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:49:32,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 08:49:32,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:49:32,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 08:49:32,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-20 08:49:32,042 INFO L87 Difference]: Start difference. First operand 386 states and 509 transitions. Second operand has 10 states, 9 states have (on average 5.444444444444445) internal successors, (49), 10 states have internal predecessors, (49), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-20 08:49:32,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:49:32,548 INFO L93 Difference]: Finished difference Result 918 states and 1210 transitions. [2024-11-20 08:49:32,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 08:49:32,549 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.444444444444445) internal successors, (49), 10 states have internal predecessors, (49), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 116 [2024-11-20 08:49:32,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:49:32,552 INFO L225 Difference]: With dead ends: 918 [2024-11-20 08:49:32,552 INFO L226 Difference]: Without dead ends: 535 [2024-11-20 08:49:32,553 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2024-11-20 08:49:32,554 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 245 mSDsluCounter, 654 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 08:49:32,555 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 794 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 08:49:32,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2024-11-20 08:49:32,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 385. [2024-11-20 08:49:32,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 339 states have (on average 1.2831858407079646) internal successors, (435), 342 states have internal predecessors, (435), 36 states have call successors, (36), 9 states have call predecessors, (36), 9 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-20 08:49:32,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 507 transitions. [2024-11-20 08:49:32,593 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 507 transitions. Word has length 116 [2024-11-20 08:49:32,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:49:32,594 INFO L471 AbstractCegarLoop]: Abstraction has 385 states and 507 transitions. [2024-11-20 08:49:32,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.444444444444445) internal successors, (49), 10 states have internal predecessors, (49), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-20 08:49:32,594 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 507 transitions. [2024-11-20 08:49:32,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-20 08:49:32,595 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:49:32,595 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:32,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-20 08:49:32,596 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:49:32,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:49:32,596 INFO L85 PathProgramCache]: Analyzing trace with hash -525416242, now seen corresponding path program 1 times [2024-11-20 08:49:32,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:49:32,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546400944] [2024-11-20 08:49:32,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:49:32,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:49:32,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:32,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:49:32,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:32,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:49:32,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:32,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:49:32,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:32,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:49:32,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:32,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:49:32,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:32,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:49:32,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:32,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:49:32,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:32,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:49:32,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:32,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:49:32,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:32,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:49:32,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:32,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:49:32,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:32,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:49:32,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:32,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:49:32,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:32,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:49:32,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:32,966 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 08:49:32,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:49:32,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546400944] [2024-11-20 08:49:32,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546400944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:49:32,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:49:32,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 08:49:32,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456610407] [2024-11-20 08:49:32,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:49:32,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 08:49:32,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:49:32,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 08:49:32,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-20 08:49:32,969 INFO L87 Difference]: Start difference. First operand 385 states and 507 transitions. Second operand has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-20 08:49:33,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:49:33,169 INFO L93 Difference]: Finished difference Result 758 states and 996 transitions. [2024-11-20 08:49:33,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 08:49:33,170 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 116 [2024-11-20 08:49:33,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:49:33,172 INFO L225 Difference]: With dead ends: 758 [2024-11-20 08:49:33,172 INFO L226 Difference]: Without dead ends: 376 [2024-11-20 08:49:33,173 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-20 08:49:33,174 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 246 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 08:49:33,174 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 421 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 08:49:33,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2024-11-20 08:49:33,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 373. [2024-11-20 08:49:33,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 327 states have (on average 1.269113149847095) internal successors, (415), 330 states have internal predecessors, (415), 36 states have call successors, (36), 9 states have call predecessors, (36), 9 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-20 08:49:33,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 487 transitions. [2024-11-20 08:49:33,212 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 487 transitions. Word has length 116 [2024-11-20 08:49:33,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:49:33,212 INFO L471 AbstractCegarLoop]: Abstraction has 373 states and 487 transitions. [2024-11-20 08:49:33,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-20 08:49:33,212 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 487 transitions. [2024-11-20 08:49:33,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-20 08:49:33,213 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:49:33,213 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:33,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-20 08:49:33,214 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:49:33,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:49:33,214 INFO L85 PathProgramCache]: Analyzing trace with hash 70813536, now seen corresponding path program 1 times [2024-11-20 08:49:33,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:49:33,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920901082] [2024-11-20 08:49:33,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:49:33,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:49:33,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:33,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:49:33,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:33,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:49:33,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:33,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:49:33,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:33,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:49:33,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:33,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:49:33,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:33,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:49:33,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:33,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:49:33,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:33,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:49:33,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:33,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:49:33,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:33,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:49:33,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:33,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:49:33,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:33,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:49:33,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:33,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:49:33,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:33,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:49:33,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:33,415 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 08:49:33,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:49:33,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920901082] [2024-11-20 08:49:33,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920901082] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:49:33,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:49:33,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 08:49:33,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142416466] [2024-11-20 08:49:33,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:49:33,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 08:49:33,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:49:33,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 08:49:33,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 08:49:33,418 INFO L87 Difference]: Start difference. First operand 373 states and 487 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-20 08:49:33,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:49:33,509 INFO L93 Difference]: Finished difference Result 750 states and 980 transitions. [2024-11-20 08:49:33,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 08:49:33,509 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 116 [2024-11-20 08:49:33,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:49:33,511 INFO L225 Difference]: With dead ends: 750 [2024-11-20 08:49:33,511 INFO L226 Difference]: Without dead ends: 380 [2024-11-20 08:49:33,512 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 08:49:33,513 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 93 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:49:33,513 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 440 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:49:33,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2024-11-20 08:49:33,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 373. [2024-11-20 08:49:33,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 327 states have (on average 1.2660550458715596) internal successors, (414), 330 states have internal predecessors, (414), 36 states have call successors, (36), 9 states have call predecessors, (36), 9 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-20 08:49:33,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 486 transitions. [2024-11-20 08:49:33,554 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 486 transitions. Word has length 116 [2024-11-20 08:49:33,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:49:33,555 INFO L471 AbstractCegarLoop]: Abstraction has 373 states and 486 transitions. [2024-11-20 08:49:33,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-20 08:49:33,555 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 486 transitions. [2024-11-20 08:49:33,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-20 08:49:33,556 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:49:33,556 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:33,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-20 08:49:33,556 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:49:33,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:49:33,557 INFO L85 PathProgramCache]: Analyzing trace with hash -2102425942, now seen corresponding path program 1 times [2024-11-20 08:49:33,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:49:33,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792211234] [2024-11-20 08:49:33,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:49:33,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:49:33,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:34,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:49:34,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:34,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:49:34,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:34,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:49:34,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:34,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:49:34,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:34,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:49:34,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:34,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:49:34,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:34,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:49:34,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:34,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:49:34,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:34,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:49:34,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:34,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:49:34,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:34,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:49:34,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:34,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:49:34,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:34,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:49:34,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:34,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:49:34,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:34,174 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 08:49:34,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:49:34,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792211234] [2024-11-20 08:49:34,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792211234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:49:34,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:49:34,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 08:49:34,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494851640] [2024-11-20 08:49:34,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:49:34,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 08:49:34,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:49:34,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 08:49:34,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-20 08:49:34,176 INFO L87 Difference]: Start difference. First operand 373 states and 486 transitions. Second operand has 9 states, 8 states have (on average 6.25) internal successors, (50), 9 states have internal predecessors, (50), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-20 08:49:34,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:49:34,457 INFO L93 Difference]: Finished difference Result 416 states and 536 transitions. [2024-11-20 08:49:34,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 08:49:34,458 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.25) internal successors, (50), 9 states have internal predecessors, (50), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 117 [2024-11-20 08:49:34,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:49:34,460 INFO L225 Difference]: With dead ends: 416 [2024-11-20 08:49:34,460 INFO L226 Difference]: Without dead ends: 414 [2024-11-20 08:49:34,460 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-11-20 08:49:34,461 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 160 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 08:49:34,461 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 557 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 08:49:34,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2024-11-20 08:49:34,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 388. [2024-11-20 08:49:34,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 342 states have (on average 1.2543859649122806) internal successors, (429), 345 states have internal predecessors, (429), 36 states have call successors, (36), 9 states have call predecessors, (36), 9 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-20 08:49:34,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 501 transitions. [2024-11-20 08:49:34,502 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 501 transitions. Word has length 117 [2024-11-20 08:49:34,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:49:34,502 INFO L471 AbstractCegarLoop]: Abstraction has 388 states and 501 transitions. [2024-11-20 08:49:34,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.25) internal successors, (50), 9 states have internal predecessors, (50), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-20 08:49:34,503 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 501 transitions. [2024-11-20 08:49:34,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-20 08:49:34,503 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:49:34,503 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:34,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-20 08:49:34,504 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:49:34,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:49:34,504 INFO L85 PathProgramCache]: Analyzing trace with hash -2100578900, now seen corresponding path program 1 times [2024-11-20 08:49:34,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:49:34,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759887711] [2024-11-20 08:49:34,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:49:34,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:49:34,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:35,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:49:35,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:35,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:49:35,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:35,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:49:35,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:35,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:49:35,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:35,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:49:35,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:35,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:49:35,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:35,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:49:35,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:35,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:49:35,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:35,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:49:35,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:35,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:49:35,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:35,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:49:35,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:35,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:49:35,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:35,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:49:35,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:35,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:49:35,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:35,073 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 08:49:35,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:49:35,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759887711] [2024-11-20 08:49:35,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759887711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:49:35,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:49:35,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 08:49:35,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709925338] [2024-11-20 08:49:35,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:49:35,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 08:49:35,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:49:35,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 08:49:35,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-20 08:49:35,076 INFO L87 Difference]: Start difference. First operand 388 states and 501 transitions. Second operand has 8 states, 7 states have (on average 7.142857142857143) internal successors, (50), 8 states have internal predecessors, (50), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-20 08:49:35,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:49:35,424 INFO L93 Difference]: Finished difference Result 819 states and 1052 transitions. [2024-11-20 08:49:35,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 08:49:35,425 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.142857142857143) internal successors, (50), 8 states have internal predecessors, (50), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 117 [2024-11-20 08:49:35,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:49:35,428 INFO L225 Difference]: With dead ends: 819 [2024-11-20 08:49:35,428 INFO L226 Difference]: Without dead ends: 434 [2024-11-20 08:49:35,429 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-20 08:49:35,429 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 225 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 08:49:35,429 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 507 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 08:49:35,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2024-11-20 08:49:35,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 433. [2024-11-20 08:49:35,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 370 states have (on average 1.2216216216216216) internal successors, (452), 374 states have internal predecessors, (452), 48 states have call successors, (48), 14 states have call predecessors, (48), 14 states have return successors, (48), 44 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-20 08:49:35,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 548 transitions. [2024-11-20 08:49:35,510 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 548 transitions. Word has length 117 [2024-11-20 08:49:35,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:49:35,510 INFO L471 AbstractCegarLoop]: Abstraction has 433 states and 548 transitions. [2024-11-20 08:49:35,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.142857142857143) internal successors, (50), 8 states have internal predecessors, (50), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-20 08:49:35,511 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 548 transitions. [2024-11-20 08:49:35,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-20 08:49:35,511 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:49:35,511 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:35,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-20 08:49:35,512 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:49:35,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:49:35,512 INFO L85 PathProgramCache]: Analyzing trace with hash -325571538, now seen corresponding path program 1 times [2024-11-20 08:49:35,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:49:35,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667198947] [2024-11-20 08:49:35,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:49:35,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:49:35,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:35,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:49:35,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:35,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:49:35,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:35,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:49:35,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:35,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:49:35,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:35,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:49:35,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:35,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:49:35,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:35,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:49:35,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:35,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:49:35,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:35,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:49:35,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:35,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:49:35,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:35,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:49:35,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:35,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:49:35,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:35,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:49:35,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:36,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:49:36,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:36,004 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 08:49:36,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:49:36,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667198947] [2024-11-20 08:49:36,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667198947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:49:36,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:49:36,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 08:49:36,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623761564] [2024-11-20 08:49:36,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:49:36,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 08:49:36,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:49:36,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 08:49:36,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-20 08:49:36,006 INFO L87 Difference]: Start difference. First operand 433 states and 548 transitions. Second operand has 8 states, 7 states have (on average 7.142857142857143) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-20 08:49:36,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:49:36,269 INFO L93 Difference]: Finished difference Result 816 states and 1042 transitions. [2024-11-20 08:49:36,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 08:49:36,270 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.142857142857143) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 117 [2024-11-20 08:49:36,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:49:36,272 INFO L225 Difference]: With dead ends: 816 [2024-11-20 08:49:36,272 INFO L226 Difference]: Without dead ends: 525 [2024-11-20 08:49:36,273 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-20 08:49:36,274 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 183 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 08:49:36,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 598 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 08:49:36,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2024-11-20 08:49:36,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 481. [2024-11-20 08:49:36,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 418 states have (on average 1.2320574162679425) internal successors, (515), 422 states have internal predecessors, (515), 48 states have call successors, (48), 14 states have call predecessors, (48), 14 states have return successors, (48), 44 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-20 08:49:36,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 611 transitions. [2024-11-20 08:49:36,458 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 611 transitions. Word has length 117 [2024-11-20 08:49:36,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:49:36,459 INFO L471 AbstractCegarLoop]: Abstraction has 481 states and 611 transitions. [2024-11-20 08:49:36,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.142857142857143) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-20 08:49:36,459 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 611 transitions. [2024-11-20 08:49:36,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-20 08:49:36,460 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:49:36,460 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:36,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-20 08:49:36,461 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:49:36,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:49:36,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1293632746, now seen corresponding path program 1 times [2024-11-20 08:49:36,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:49:36,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827620789] [2024-11-20 08:49:36,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:49:36,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:49:36,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:37,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:49:37,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:37,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:49:37,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:37,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:49:37,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:37,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:49:37,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:37,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:49:37,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:37,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:49:37,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:37,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:49:37,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:37,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:49:37,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:37,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:49:37,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:37,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:49:37,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:37,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:49:37,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:37,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:49:37,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:37,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:49:37,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:37,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:49:37,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:37,163 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 08:49:37,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:49:37,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827620789] [2024-11-20 08:49:37,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827620789] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:49:37,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:49:37,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-20 08:49:37,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540886643] [2024-11-20 08:49:37,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:49:37,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 08:49:37,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:49:37,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 08:49:37,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-20 08:49:37,166 INFO L87 Difference]: Start difference. First operand 481 states and 611 transitions. Second operand has 11 states, 10 states have (on average 5.1) internal successors, (51), 11 states have internal predecessors, (51), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-20 08:49:37,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:49:37,682 INFO L93 Difference]: Finished difference Result 1012 states and 1296 transitions. [2024-11-20 08:49:37,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 08:49:37,686 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.1) internal successors, (51), 11 states have internal predecessors, (51), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 118 [2024-11-20 08:49:37,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:49:37,689 INFO L225 Difference]: With dead ends: 1012 [2024-11-20 08:49:37,689 INFO L226 Difference]: Without dead ends: 673 [2024-11-20 08:49:37,691 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2024-11-20 08:49:37,692 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 418 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 760 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 08:49:37,692 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 760 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 08:49:37,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2024-11-20 08:49:37,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 493. [2024-11-20 08:49:37,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 427 states have (on average 1.2271662763466042) internal successors, (524), 431 states have internal predecessors, (524), 50 states have call successors, (50), 15 states have call predecessors, (50), 15 states have return successors, (50), 46 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-20 08:49:37,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 624 transitions. [2024-11-20 08:49:37,759 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 624 transitions. Word has length 118 [2024-11-20 08:49:37,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:49:37,759 INFO L471 AbstractCegarLoop]: Abstraction has 493 states and 624 transitions. [2024-11-20 08:49:37,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.1) internal successors, (51), 11 states have internal predecessors, (51), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-20 08:49:37,759 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 624 transitions. [2024-11-20 08:49:37,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-20 08:49:37,760 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:49:37,760 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:37,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-20 08:49:37,761 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:49:37,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:49:37,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1604330016, now seen corresponding path program 1 times [2024-11-20 08:49:37,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:49:37,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390587985] [2024-11-20 08:49:37,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:49:37,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:49:37,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:37,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:49:37,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:37,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:49:37,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:37,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:49:37,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:37,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:49:37,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:38,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:49:38,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:38,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:49:38,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:38,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:49:38,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:38,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:49:38,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:38,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:49:38,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:38,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:49:38,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:38,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:49:38,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:38,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:49:38,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:38,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:49:38,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:38,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:49:38,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:38,019 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 08:49:38,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:49:38,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390587985] [2024-11-20 08:49:38,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390587985] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:49:38,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:49:38,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 08:49:38,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005567895] [2024-11-20 08:49:38,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:49:38,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 08:49:38,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:49:38,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 08:49:38,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-20 08:49:38,021 INFO L87 Difference]: Start difference. First operand 493 states and 624 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-20 08:49:38,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:49:38,334 INFO L93 Difference]: Finished difference Result 1007 states and 1289 transitions. [2024-11-20 08:49:38,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 08:49:38,336 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 118 [2024-11-20 08:49:38,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:49:38,340 INFO L225 Difference]: With dead ends: 1007 [2024-11-20 08:49:38,340 INFO L226 Difference]: Without dead ends: 668 [2024-11-20 08:49:38,341 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-20 08:49:38,341 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 185 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 08:49:38,342 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 671 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 08:49:38,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2024-11-20 08:49:38,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 525. [2024-11-20 08:49:38,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 459 states have (on average 1.233115468409586) internal successors, (566), 463 states have internal predecessors, (566), 50 states have call successors, (50), 15 states have call predecessors, (50), 15 states have return successors, (50), 46 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-20 08:49:38,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 666 transitions. [2024-11-20 08:49:38,402 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 666 transitions. Word has length 118 [2024-11-20 08:49:38,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:49:38,402 INFO L471 AbstractCegarLoop]: Abstraction has 525 states and 666 transitions. [2024-11-20 08:49:38,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-20 08:49:38,403 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 666 transitions. [2024-11-20 08:49:38,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-20 08:49:38,403 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:49:38,403 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:38,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-20 08:49:38,404 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:49:38,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:49:38,404 INFO L85 PathProgramCache]: Analyzing trace with hash 324466338, now seen corresponding path program 1 times [2024-11-20 08:49:38,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:49:38,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636981135] [2024-11-20 08:49:38,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:49:38,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:49:38,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:39,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:49:39,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:39,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:49:39,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:39,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:49:39,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:39,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:49:39,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:39,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:49:39,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:39,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:49:39,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:39,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:49:39,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:39,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:49:39,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:39,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:49:39,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:39,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:49:39,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:39,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:49:39,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:39,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:49:39,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:39,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:49:39,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:39,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:49:39,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:39,072 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 08:49:39,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:49:39,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636981135] [2024-11-20 08:49:39,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636981135] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:49:39,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:49:39,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-20 08:49:39,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430414002] [2024-11-20 08:49:39,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:49:39,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 08:49:39,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:49:39,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 08:49:39,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-20 08:49:39,075 INFO L87 Difference]: Start difference. First operand 525 states and 666 transitions. Second operand has 13 states, 12 states have (on average 4.25) internal successors, (51), 13 states have internal predecessors, (51), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-20 08:49:39,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:49:39,818 INFO L93 Difference]: Finished difference Result 1040 states and 1328 transitions. [2024-11-20 08:49:39,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-20 08:49:39,819 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.25) internal successors, (51), 13 states have internal predecessors, (51), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 118 [2024-11-20 08:49:39,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:49:39,822 INFO L225 Difference]: With dead ends: 1040 [2024-11-20 08:49:39,823 INFO L226 Difference]: Without dead ends: 701 [2024-11-20 08:49:39,824 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=196, Invalid=560, Unknown=0, NotChecked=0, Total=756 [2024-11-20 08:49:39,824 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 640 mSDsluCounter, 665 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 640 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 08:49:39,824 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [640 Valid, 825 Invalid, 730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 08:49:39,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2024-11-20 08:49:39,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 531. [2024-11-20 08:49:39,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 465 states have (on average 1.2365591397849462) internal successors, (575), 469 states have internal predecessors, (575), 50 states have call successors, (50), 15 states have call predecessors, (50), 15 states have return successors, (50), 46 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-20 08:49:39,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 675 transitions. [2024-11-20 08:49:39,888 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 675 transitions. Word has length 118 [2024-11-20 08:49:39,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:49:39,888 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 675 transitions. [2024-11-20 08:49:39,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.25) internal successors, (51), 13 states have internal predecessors, (51), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-20 08:49:39,889 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 675 transitions. [2024-11-20 08:49:39,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-20 08:49:39,890 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:49:39,890 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:39,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-20 08:49:39,890 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:49:39,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:49:39,898 INFO L85 PathProgramCache]: Analyzing trace with hash -303223042, now seen corresponding path program 1 times [2024-11-20 08:49:39,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:49:39,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112106013] [2024-11-20 08:49:39,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:49:39,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:49:39,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:40,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:49:40,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:40,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:49:40,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:40,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:49:40,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:40,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:49:40,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:40,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:49:40,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:40,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:49:40,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:40,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:49:40,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:40,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:49:40,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:40,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:49:40,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:40,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:49:40,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:40,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:49:40,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:40,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:49:40,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:40,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:49:40,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:40,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:49:40,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:40,212 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 08:49:40,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:49:40,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112106013] [2024-11-20 08:49:40,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112106013] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:49:40,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:49:40,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 08:49:40,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468477805] [2024-11-20 08:49:40,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:49:40,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 08:49:40,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:49:40,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 08:49:40,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-20 08:49:40,214 INFO L87 Difference]: Start difference. First operand 531 states and 675 transitions. Second operand has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 8 states have internal predecessors, (52), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-20 08:49:40,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:49:40,430 INFO L93 Difference]: Finished difference Result 1017 states and 1294 transitions. [2024-11-20 08:49:40,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 08:49:40,432 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 8 states have internal predecessors, (52), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 119 [2024-11-20 08:49:40,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:49:40,434 INFO L225 Difference]: With dead ends: 1017 [2024-11-20 08:49:40,435 INFO L226 Difference]: Without dead ends: 534 [2024-11-20 08:49:40,436 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-20 08:49:40,436 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 223 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 08:49:40,437 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 452 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 08:49:40,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2024-11-20 08:49:40,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 531. [2024-11-20 08:49:40,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 465 states have (on average 1.2301075268817205) internal successors, (572), 469 states have internal predecessors, (572), 50 states have call successors, (50), 15 states have call predecessors, (50), 15 states have return successors, (50), 46 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-20 08:49:40,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 672 transitions. [2024-11-20 08:49:40,508 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 672 transitions. Word has length 119 [2024-11-20 08:49:40,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:49:40,509 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 672 transitions. [2024-11-20 08:49:40,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 8 states have internal predecessors, (52), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-20 08:49:40,509 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 672 transitions. [2024-11-20 08:49:40,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-20 08:49:40,510 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:49:40,511 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:40,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-20 08:49:40,511 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:49:40,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:49:40,511 INFO L85 PathProgramCache]: Analyzing trace with hash -45057604, now seen corresponding path program 1 times [2024-11-20 08:49:40,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:49:40,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618071397] [2024-11-20 08:49:40,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:49:40,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:49:40,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:40,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:49:40,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:40,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:49:40,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:40,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:49:40,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:40,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:49:40,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:40,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:49:40,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:40,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:49:40,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:40,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:49:40,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:40,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:49:40,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:40,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:49:40,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:40,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:49:40,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:40,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:49:40,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:40,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:49:40,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:40,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:49:40,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:41,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:49:41,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:41,003 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 08:49:41,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:49:41,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618071397] [2024-11-20 08:49:41,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618071397] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:49:41,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:49:41,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 08:49:41,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354447081] [2024-11-20 08:49:41,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:49:41,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 08:49:41,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:49:41,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 08:49:41,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-20 08:49:41,006 INFO L87 Difference]: Start difference. First operand 531 states and 672 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-20 08:49:41,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:49:41,328 INFO L93 Difference]: Finished difference Result 1113 states and 1402 transitions. [2024-11-20 08:49:41,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 08:49:41,328 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 119 [2024-11-20 08:49:41,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:49:41,331 INFO L225 Difference]: With dead ends: 1113 [2024-11-20 08:49:41,331 INFO L226 Difference]: Without dead ends: 630 [2024-11-20 08:49:41,332 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-20 08:49:41,332 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 178 mSDsluCounter, 945 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 1118 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 08:49:41,332 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 1118 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 08:49:41,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2024-11-20 08:49:41,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 547. [2024-11-20 08:49:41,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 481 states have (on average 1.2245322245322245) internal successors, (589), 485 states have internal predecessors, (589), 50 states have call successors, (50), 15 states have call predecessors, (50), 15 states have return successors, (50), 46 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-20 08:49:41,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 689 transitions. [2024-11-20 08:49:41,397 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 689 transitions. Word has length 119 [2024-11-20 08:49:41,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:49:41,398 INFO L471 AbstractCegarLoop]: Abstraction has 547 states and 689 transitions. [2024-11-20 08:49:41,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-20 08:49:41,398 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 689 transitions. [2024-11-20 08:49:41,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-20 08:49:41,399 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:49:41,399 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:41,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-20 08:49:41,399 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:49:41,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:49:41,399 INFO L85 PathProgramCache]: Analyzing trace with hash 656006974, now seen corresponding path program 1 times [2024-11-20 08:49:41,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:49:41,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784139187] [2024-11-20 08:49:41,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:49:41,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:49:41,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:41,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:49:41,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:41,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:49:41,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:41,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:49:41,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:41,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:49:41,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:41,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:49:41,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:41,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:49:41,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:41,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:49:41,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:41,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:49:41,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:41,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:49:41,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:41,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:49:41,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:41,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:49:41,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:41,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:49:41,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:41,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:49:41,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:41,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:49:41,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:41,613 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 08:49:41,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:49:41,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784139187] [2024-11-20 08:49:41,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784139187] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:49:41,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:49:41,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 08:49:41,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129389814] [2024-11-20 08:49:41,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:49:41,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 08:49:41,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:49:41,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 08:49:41,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 08:49:41,615 INFO L87 Difference]: Start difference. First operand 547 states and 689 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-20 08:49:41,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:49:41,728 INFO L93 Difference]: Finished difference Result 1257 states and 1587 transitions. [2024-11-20 08:49:41,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 08:49:41,729 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 119 [2024-11-20 08:49:41,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:49:41,732 INFO L225 Difference]: With dead ends: 1257 [2024-11-20 08:49:41,732 INFO L226 Difference]: Without dead ends: 758 [2024-11-20 08:49:41,733 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 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 08:49:41,734 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 35 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 08:49:41,734 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 619 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 08:49:41,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2024-11-20 08:49:41,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 675. [2024-11-20 08:49:41,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 609 states have (on average 1.2463054187192117) internal successors, (759), 613 states have internal predecessors, (759), 50 states have call successors, (50), 15 states have call predecessors, (50), 15 states have return successors, (50), 46 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-20 08:49:41,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 859 transitions. [2024-11-20 08:49:41,808 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 859 transitions. Word has length 119 [2024-11-20 08:49:41,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:49:41,810 INFO L471 AbstractCegarLoop]: Abstraction has 675 states and 859 transitions. [2024-11-20 08:49:41,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-20 08:49:41,810 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 859 transitions. [2024-11-20 08:49:41,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-20 08:49:41,811 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:49:41,811 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:41,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-20 08:49:41,811 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:49:41,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:49:41,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1850495938, now seen corresponding path program 1 times [2024-11-20 08:49:41,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:49:41,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609340886] [2024-11-20 08:49:41,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:49:41,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:49:41,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:42,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:49:42,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:42,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:49:42,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:42,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:49:42,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:42,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:49:42,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:42,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:49:42,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:42,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:49:42,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:42,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:49:42,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:42,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:49:42,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:42,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:49:42,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:42,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:49:42,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:42,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:49:42,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:42,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:49:42,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:42,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:49:42,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:42,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:49:42,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:42,370 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 08:49:42,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:49:42,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609340886] [2024-11-20 08:49:42,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609340886] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:49:42,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:49:42,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 08:49:42,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671814311] [2024-11-20 08:49:42,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:49:42,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 08:49:42,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:49:42,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 08:49:42,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-20 08:49:42,373 INFO L87 Difference]: Start difference. First operand 675 states and 859 transitions. Second operand has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 10 states have internal predecessors, (52), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-20 08:49:42,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:49:42,772 INFO L93 Difference]: Finished difference Result 1534 states and 1950 transitions. [2024-11-20 08:49:42,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 08:49:42,773 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 10 states have internal predecessors, (52), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 119 [2024-11-20 08:49:42,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:49:42,777 INFO L225 Difference]: With dead ends: 1534 [2024-11-20 08:49:42,777 INFO L226 Difference]: Without dead ends: 907 [2024-11-20 08:49:42,778 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2024-11-20 08:49:42,778 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 260 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 688 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 08:49:42,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 688 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 08:49:42,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2024-11-20 08:49:42,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 706. [2024-11-20 08:49:42,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 640 states have (on average 1.24375) internal successors, (796), 643 states have internal predecessors, (796), 50 states have call successors, (50), 15 states have call predecessors, (50), 15 states have return successors, (50), 47 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-20 08:49:42,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 896 transitions. [2024-11-20 08:49:42,850 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 896 transitions. Word has length 119 [2024-11-20 08:49:42,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:49:42,850 INFO L471 AbstractCegarLoop]: Abstraction has 706 states and 896 transitions. [2024-11-20 08:49:42,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 10 states have internal predecessors, (52), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-20 08:49:42,850 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 896 transitions. [2024-11-20 08:49:42,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-20 08:49:42,851 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:49:42,851 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:42,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-20 08:49:42,852 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:49:42,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:49:42,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1275504314, now seen corresponding path program 1 times [2024-11-20 08:49:42,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:49:42,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115428403] [2024-11-20 08:49:42,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:49:42,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:49:42,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:43,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:49:43,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:43,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:49:43,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:43,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:49:43,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:43,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:49:43,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:43,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:49:43,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:43,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:49:43,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:43,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:49:43,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:43,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:49:43,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:43,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:49:43,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:43,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:49:43,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:43,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:49:43,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:43,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:49:43,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:43,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:49:43,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:43,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:49:43,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:43,470 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 08:49:43,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:49:43,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115428403] [2024-11-20 08:49:43,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115428403] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:49:43,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:49:43,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-20 08:49:43,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920506049] [2024-11-20 08:49:43,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:49:43,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 08:49:43,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:49:43,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 08:49:43,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-20 08:49:43,472 INFO L87 Difference]: Start difference. First operand 706 states and 896 transitions. Second operand has 11 states, 9 states have (on average 5.777777777777778) internal successors, (52), 10 states have internal predecessors, (52), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-20 08:49:43,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:49:43,859 INFO L93 Difference]: Finished difference Result 1210 states and 1543 transitions. [2024-11-20 08:49:43,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 08:49:43,859 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 5.777777777777778) internal successors, (52), 10 states have internal predecessors, (52), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) Word has length 119 [2024-11-20 08:49:43,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:49:43,862 INFO L225 Difference]: With dead ends: 1210 [2024-11-20 08:49:43,862 INFO L226 Difference]: Without dead ends: 767 [2024-11-20 08:49:43,863 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2024-11-20 08:49:43,864 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 257 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 08:49:43,864 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 528 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 08:49:43,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2024-11-20 08:49:43,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 617. [2024-11-20 08:49:43,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 617 states, 551 states have (on average 1.2159709618874772) internal successors, (670), 554 states have internal predecessors, (670), 50 states have call successors, (50), 15 states have call predecessors, (50), 15 states have return successors, (50), 47 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-20 08:49:43,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 770 transitions. [2024-11-20 08:49:43,937 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 770 transitions. Word has length 119 [2024-11-20 08:49:43,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:49:43,937 INFO L471 AbstractCegarLoop]: Abstraction has 617 states and 770 transitions. [2024-11-20 08:49:43,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 5.777777777777778) internal successors, (52), 10 states have internal predecessors, (52), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-20 08:49:43,938 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 770 transitions. [2024-11-20 08:49:43,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-20 08:49:43,938 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:49:43,939 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:43,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-20 08:49:43,939 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:49:43,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:49:43,939 INFO L85 PathProgramCache]: Analyzing trace with hash -943492236, now seen corresponding path program 1 times [2024-11-20 08:49:43,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:49:43,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869719052] [2024-11-20 08:49:43,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:49:43,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:49:43,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:44,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:49:44,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:44,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:49:44,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:44,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:49:44,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:44,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:49:44,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:44,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:49:44,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:44,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:49:44,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:44,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:49:44,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:44,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:49:44,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:44,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:49:44,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:44,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:49:44,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:44,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:49:44,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:44,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:49:44,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:44,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:49:44,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:44,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:49:44,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:44,728 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 08:49:44,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:49:44,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869719052] [2024-11-20 08:49:44,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869719052] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:49:44,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:49:44,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-20 08:49:44,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493818218] [2024-11-20 08:49:44,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:49:44,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-20 08:49:44,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:49:44,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-20 08:49:44,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2024-11-20 08:49:44,730 INFO L87 Difference]: Start difference. First operand 617 states and 770 transitions. Second operand has 14 states, 11 states have (on average 4.818181818181818) internal successors, (53), 13 states have internal predecessors, (53), 7 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-20 08:49:45,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:49:45,344 INFO L93 Difference]: Finished difference Result 1093 states and 1368 transitions. [2024-11-20 08:49:45,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 08:49:45,344 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 4.818181818181818) internal successors, (53), 13 states have internal predecessors, (53), 7 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 7 states have call successors, (14) Word has length 120 [2024-11-20 08:49:45,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:49:45,347 INFO L225 Difference]: With dead ends: 1093 [2024-11-20 08:49:45,347 INFO L226 Difference]: Without dead ends: 729 [2024-11-20 08:49:45,347 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=117, Invalid=389, Unknown=0, NotChecked=0, Total=506 [2024-11-20 08:49:45,348 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 418 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 749 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 08:49:45,348 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 749 Invalid, 576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 08:49:45,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2024-11-20 08:49:45,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 701. [2024-11-20 08:49:45,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 627 states have (on average 1.2169059011164274) internal successors, (763), 631 states have internal predecessors, (763), 56 states have call successors, (56), 17 states have call predecessors, (56), 17 states have return successors, (56), 52 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-20 08:49:45,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 875 transitions. [2024-11-20 08:49:45,434 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 875 transitions. Word has length 120 [2024-11-20 08:49:45,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:49:45,434 INFO L471 AbstractCegarLoop]: Abstraction has 701 states and 875 transitions. [2024-11-20 08:49:45,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 4.818181818181818) internal successors, (53), 13 states have internal predecessors, (53), 7 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-20 08:49:45,435 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 875 transitions. [2024-11-20 08:49:45,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-20 08:49:45,435 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:49:45,435 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:45,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-20 08:49:45,436 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:49:45,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:49:45,436 INFO L85 PathProgramCache]: Analyzing trace with hash -864639065, now seen corresponding path program 1 times [2024-11-20 08:49:45,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:49:45,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209190737] [2024-11-20 08:49:45,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:49:45,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:49:45,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:46,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:49:46,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:46,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:49:46,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:46,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:49:46,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:46,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:49:46,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:46,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:49:46,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:46,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:49:46,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:46,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:49:46,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:46,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:49:46,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:46,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:49:46,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:46,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:49:46,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:46,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:49:46,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:46,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:49:46,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:46,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:49:46,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:46,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:49:46,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:46,417 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 08:49:46,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:49:46,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209190737] [2024-11-20 08:49:46,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209190737] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:49:46,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:49:46,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-20 08:49:46,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082655132] [2024-11-20 08:49:46,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:49:46,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-20 08:49:46,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:49:46,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-20 08:49:46,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2024-11-20 08:49:46,420 INFO L87 Difference]: Start difference. First operand 701 states and 875 transitions. Second operand has 17 states, 16 states have (on average 3.375) internal successors, (54), 16 states have internal predecessors, (54), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-20 08:49:47,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:49:47,421 INFO L93 Difference]: Finished difference Result 1498 states and 1882 transitions. [2024-11-20 08:49:47,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-20 08:49:47,422 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.375) internal successors, (54), 16 states have internal predecessors, (54), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 121 [2024-11-20 08:49:47,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:49:47,425 INFO L225 Difference]: With dead ends: 1498 [2024-11-20 08:49:47,425 INFO L226 Difference]: Without dead ends: 1050 [2024-11-20 08:49:47,427 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=234, Invalid=1488, Unknown=0, NotChecked=0, Total=1722 [2024-11-20 08:49:47,427 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 278 mSDsluCounter, 1671 mSDsCounter, 0 mSdLazyCounter, 829 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 1836 SdHoareTripleChecker+Invalid, 866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 08:49:47,427 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 1836 Invalid, 866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 829 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 08:49:47,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1050 states. [2024-11-20 08:49:47,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1050 to 1012. [2024-11-20 08:49:47,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 917 states have (on average 1.2290076335877862) internal successors, (1127), 924 states have internal predecessors, (1127), 72 states have call successors, (72), 22 states have call predecessors, (72), 22 states have return successors, (72), 65 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-20 08:49:47,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1271 transitions. [2024-11-20 08:49:47,513 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1271 transitions. Word has length 121 [2024-11-20 08:49:47,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:49:47,514 INFO L471 AbstractCegarLoop]: Abstraction has 1012 states and 1271 transitions. [2024-11-20 08:49:47,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.375) internal successors, (54), 16 states have internal predecessors, (54), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-20 08:49:47,514 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1271 transitions. [2024-11-20 08:49:47,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-20 08:49:47,515 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:49:47,515 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:47,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-20 08:49:47,516 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:49:47,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:49:47,516 INFO L85 PathProgramCache]: Analyzing trace with hash -283492182, now seen corresponding path program 1 times [2024-11-20 08:49:47,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:49:47,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805760971] [2024-11-20 08:49:47,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:49:47,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:49:47,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:47,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:49:47,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:47,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:49:47,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:47,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:49:47,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:47,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:49:47,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:47,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:49:47,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:47,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:49:47,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:47,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:49:47,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:47,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:49:47,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:47,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:49:47,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:47,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:49:47,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:47,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:49:47,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:47,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:49:47,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:47,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:49:47,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:47,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:49:47,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:47,917 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 08:49:47,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:49:47,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805760971] [2024-11-20 08:49:47,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805760971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:49:47,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:49:47,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 08:49:47,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909983950] [2024-11-20 08:49:47,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:49:47,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 08:49:47,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:49:47,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 08:49:47,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-20 08:49:47,920 INFO L87 Difference]: Start difference. First operand 1012 states and 1271 transitions. Second operand has 9 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-20 08:49:48,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:49:48,223 INFO L93 Difference]: Finished difference Result 1716 states and 2160 transitions. [2024-11-20 08:49:48,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 08:49:48,223 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 121 [2024-11-20 08:49:48,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:49:48,228 INFO L225 Difference]: With dead ends: 1716 [2024-11-20 08:49:48,228 INFO L226 Difference]: Without dead ends: 1018 [2024-11-20 08:49:48,229 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2024-11-20 08:49:48,230 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 233 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 08:49:48,230 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 608 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 08:49:48,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1018 states. [2024-11-20 08:49:48,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1018 to 937. [2024-11-20 08:49:48,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 937 states, 850 states have (on average 1.2211764705882353) internal successors, (1038), 855 states have internal predecessors, (1038), 64 states have call successors, (64), 22 states have call predecessors, (64), 22 states have return successors, (64), 59 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-20 08:49:48,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 937 states to 937 states and 1166 transitions. [2024-11-20 08:49:48,334 INFO L78 Accepts]: Start accepts. Automaton has 937 states and 1166 transitions. Word has length 121 [2024-11-20 08:49:48,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:49:48,335 INFO L471 AbstractCegarLoop]: Abstraction has 937 states and 1166 transitions. [2024-11-20 08:49:48,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-20 08:49:48,335 INFO L276 IsEmpty]: Start isEmpty. Operand 937 states and 1166 transitions. [2024-11-20 08:49:48,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-20 08:49:48,336 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:49:48,336 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:48,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-20 08:49:48,337 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:49:48,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:49:48,337 INFO L85 PathProgramCache]: Analyzing trace with hash -851308708, now seen corresponding path program 1 times [2024-11-20 08:49:48,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:49:48,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594684127] [2024-11-20 08:49:48,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:49:48,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:49:48,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:49,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:49:49,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:49,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:49:49,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:49,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:49:49,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:49,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:49:49,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:49,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:49:49,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:49,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:49:49,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:49,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:49:49,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:49,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:49:49,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:49,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:49:49,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:49,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:49:49,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:49,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:49:49,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:49,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:49:49,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:49,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:49:49,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:49,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:49:49,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:49,448 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 08:49:49,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:49:49,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594684127] [2024-11-20 08:49:49,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594684127] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:49:49,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:49:49,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-20 08:49:49,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142111633] [2024-11-20 08:49:49,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:49:49,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-20 08:49:49,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:49:49,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-20 08:49:49,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2024-11-20 08:49:49,449 INFO L87 Difference]: Start difference. First operand 937 states and 1166 transitions. Second operand has 18 states, 17 states have (on average 3.235294117647059) internal successors, (55), 18 states have internal predecessors, (55), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-20 08:49:50,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:49:50,925 INFO L93 Difference]: Finished difference Result 1990 states and 2472 transitions. [2024-11-20 08:49:50,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-20 08:49:50,926 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.235294117647059) internal successors, (55), 18 states have internal predecessors, (55), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 122 [2024-11-20 08:49:50,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:49:50,932 INFO L225 Difference]: With dead ends: 1990 [2024-11-20 08:49:50,932 INFO L226 Difference]: Without dead ends: 1367 [2024-11-20 08:49:50,933 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=256, Invalid=1076, Unknown=0, NotChecked=0, Total=1332 [2024-11-20 08:49:50,934 INFO L432 NwaCegarLoop]: 230 mSDtfsCounter, 569 mSDsluCounter, 1770 mSDsCounter, 0 mSdLazyCounter, 1396 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 2000 SdHoareTripleChecker+Invalid, 1499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-20 08:49:50,934 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [569 Valid, 2000 Invalid, 1499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1396 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-20 08:49:50,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1367 states. [2024-11-20 08:49:51,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1367 to 1053. [2024-11-20 08:49:51,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1053 states, 960 states have (on average 1.2166666666666666) internal successors, (1168), 966 states have internal predecessors, (1168), 68 states have call successors, (68), 24 states have call predecessors, (68), 24 states have return successors, (68), 62 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-20 08:49:51,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1304 transitions. [2024-11-20 08:49:51,058 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1304 transitions. Word has length 122 [2024-11-20 08:49:51,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:49:51,058 INFO L471 AbstractCegarLoop]: Abstraction has 1053 states and 1304 transitions. [2024-11-20 08:49:51,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.235294117647059) internal successors, (55), 18 states have internal predecessors, (55), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-20 08:49:51,058 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1304 transitions. [2024-11-20 08:49:51,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-20 08:49:51,062 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:49:51,062 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:51,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-20 08:49:51,062 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:49:51,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:49:51,063 INFO L85 PathProgramCache]: Analyzing trace with hash 107921308, now seen corresponding path program 1 times [2024-11-20 08:49:51,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:49:51,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943367088] [2024-11-20 08:49:51,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:49:51,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:49:51,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:51,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:49:51,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:51,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:49:51,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:51,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:49:51,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:51,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:49:51,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:51,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:49:51,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:51,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:49:51,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:51,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:49:51,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:51,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:49:51,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:51,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:49:51,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:51,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:49:51,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:51,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:49:51,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:51,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:49:51,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:51,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:49:51,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:51,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:49:51,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:51,388 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 08:49:51,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:49:51,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943367088] [2024-11-20 08:49:51,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943367088] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:49:51,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:49:51,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 08:49:51,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911473693] [2024-11-20 08:49:51,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:49:51,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 08:49:51,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:49:51,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 08:49:51,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-20 08:49:51,390 INFO L87 Difference]: Start difference. First operand 1053 states and 1304 transitions. Second operand has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-20 08:49:51,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:49:51,737 INFO L93 Difference]: Finished difference Result 1878 states and 2322 transitions. [2024-11-20 08:49:51,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 08:49:51,738 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 122 [2024-11-20 08:49:51,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:49:51,743 INFO L225 Difference]: With dead ends: 1878 [2024-11-20 08:49:51,744 INFO L226 Difference]: Without dead ends: 1159 [2024-11-20 08:49:51,745 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2024-11-20 08:49:51,746 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 182 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 08:49:51,746 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 625 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 08:49:51,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2024-11-20 08:49:51,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 1081. [2024-11-20 08:49:51,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1081 states, 982 states have (on average 1.2057026476578412) internal successors, (1184), 989 states have internal predecessors, (1184), 72 states have call successors, (72), 26 states have call predecessors, (72), 26 states have return successors, (72), 65 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-20 08:49:51,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1081 states to 1081 states and 1328 transitions. [2024-11-20 08:49:51,898 INFO L78 Accepts]: Start accepts. Automaton has 1081 states and 1328 transitions. Word has length 122 [2024-11-20 08:49:51,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:49:51,898 INFO L471 AbstractCegarLoop]: Abstraction has 1081 states and 1328 transitions. [2024-11-20 08:49:51,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-20 08:49:51,898 INFO L276 IsEmpty]: Start isEmpty. Operand 1081 states and 1328 transitions. [2024-11-20 08:49:51,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-20 08:49:51,899 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:49:51,899 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:51,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-20 08:49:51,900 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:49:51,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:49:51,900 INFO L85 PathProgramCache]: Analyzing trace with hash -802322687, now seen corresponding path program 1 times [2024-11-20 08:49:51,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:49:51,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681578151] [2024-11-20 08:49:51,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:49:51,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:49:51,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:53,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:49:53,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:53,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:49:53,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:53,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:49:53,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:53,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:49:53,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:53,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:49:53,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:53,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:49:53,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:53,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:49:53,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:53,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:49:53,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:53,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:49:53,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:53,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:49:53,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:53,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:49:53,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:53,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:49:53,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:53,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:49:53,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:53,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:49:53,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:53,428 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 08:49:53,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:49:53,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681578151] [2024-11-20 08:49:53,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681578151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:49:53,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:49:53,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-20 08:49:53,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438266231] [2024-11-20 08:49:53,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:49:53,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-20 08:49:53,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:49:53,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-20 08:49:53,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2024-11-20 08:49:53,430 INFO L87 Difference]: Start difference. First operand 1081 states and 1328 transitions. Second operand has 18 states, 16 states have (on average 3.5) internal successors, (56), 17 states have internal predecessors, (56), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-20 08:49:57,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:49:57,468 INFO L93 Difference]: Finished difference Result 2285 states and 2813 transitions. [2024-11-20 08:49:57,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-20 08:49:57,469 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 3.5) internal successors, (56), 17 states have internal predecessors, (56), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) Word has length 123 [2024-11-20 08:49:57,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:49:57,475 INFO L225 Difference]: With dead ends: 2285 [2024-11-20 08:49:57,475 INFO L226 Difference]: Without dead ends: 1538 [2024-11-20 08:49:57,476 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=224, Invalid=898, Unknown=0, NotChecked=0, Total=1122 [2024-11-20 08:49:57,476 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 609 mSDsluCounter, 1074 mSDsCounter, 0 mSdLazyCounter, 1188 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 609 SdHoareTripleChecker+Valid, 1220 SdHoareTripleChecker+Invalid, 1269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-20 08:49:57,477 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [609 Valid, 1220 Invalid, 1269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1188 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-20 08:49:57,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1538 states. [2024-11-20 08:49:57,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1538 to 1167. [2024-11-20 08:49:57,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1167 states, 1068 states have (on average 1.2134831460674158) internal successors, (1296), 1075 states have internal predecessors, (1296), 72 states have call successors, (72), 26 states have call predecessors, (72), 26 states have return successors, (72), 65 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-20 08:49:57,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1167 states to 1167 states and 1440 transitions. [2024-11-20 08:49:57,612 INFO L78 Accepts]: Start accepts. Automaton has 1167 states and 1440 transitions. Word has length 123 [2024-11-20 08:49:57,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:49:57,612 INFO L471 AbstractCegarLoop]: Abstraction has 1167 states and 1440 transitions. [2024-11-20 08:49:57,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 3.5) internal successors, (56), 17 states have internal predecessors, (56), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-20 08:49:57,613 INFO L276 IsEmpty]: Start isEmpty. Operand 1167 states and 1440 transitions. [2024-11-20 08:49:57,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-20 08:49:57,614 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:49:57,614 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:57,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-20 08:49:57,614 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:49:57,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:49:57,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1904296707, now seen corresponding path program 1 times [2024-11-20 08:49:57,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:49:57,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167352618] [2024-11-20 08:49:57,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:49:57,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:49:57,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:58,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:49:58,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:58,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:49:58,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:58,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:49:58,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:58,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:49:58,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:58,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:49:58,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:58,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:49:58,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:58,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:49:58,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:58,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:49:58,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:58,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:49:58,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:58,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:49:58,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:58,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:49:58,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:58,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:49:58,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:58,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:49:58,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:58,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:49:58,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:58,066 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 08:49:58,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:49:58,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167352618] [2024-11-20 08:49:58,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167352618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:49:58,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:49:58,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-20 08:49:58,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800688080] [2024-11-20 08:49:58,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:49:58,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 08:49:58,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:49:58,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 08:49:58,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-20 08:49:58,067 INFO L87 Difference]: Start difference. First operand 1167 states and 1440 transitions. Second operand has 11 states, 9 states have (on average 6.222222222222222) internal successors, (56), 11 states have internal predecessors, (56), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-20 08:49:58,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:49:58,547 INFO L93 Difference]: Finished difference Result 2464 states and 3049 transitions. [2024-11-20 08:49:58,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 08:49:58,547 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 6.222222222222222) internal successors, (56), 11 states have internal predecessors, (56), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) Word has length 123 [2024-11-20 08:49:58,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:49:58,554 INFO L225 Difference]: With dead ends: 2464 [2024-11-20 08:49:58,554 INFO L226 Difference]: Without dead ends: 1661 [2024-11-20 08:49:58,556 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2024-11-20 08:49:58,557 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 371 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 08:49:58,558 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 680 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 08:49:58,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1661 states. [2024-11-20 08:49:58,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1661 to 1342. [2024-11-20 08:49:58,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1342 states, 1243 states have (on average 1.2156074014481093) internal successors, (1511), 1250 states have internal predecessors, (1511), 72 states have call successors, (72), 26 states have call predecessors, (72), 26 states have return successors, (72), 65 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-20 08:49:58,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1342 states to 1342 states and 1655 transitions. [2024-11-20 08:49:58,705 INFO L78 Accepts]: Start accepts. Automaton has 1342 states and 1655 transitions. Word has length 123 [2024-11-20 08:49:58,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:49:58,706 INFO L471 AbstractCegarLoop]: Abstraction has 1342 states and 1655 transitions. [2024-11-20 08:49:58,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 6.222222222222222) internal successors, (56), 11 states have internal predecessors, (56), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-20 08:49:58,706 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 1655 transitions. [2024-11-20 08:49:58,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-20 08:49:58,707 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:49:58,707 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:58,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-20 08:49:58,707 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:49:58,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:49:58,708 INFO L85 PathProgramCache]: Analyzing trace with hash -684532987, now seen corresponding path program 1 times [2024-11-20 08:49:58,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:49:58,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008731467] [2024-11-20 08:49:58,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:49:58,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:49:58,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:59,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:49:59,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:59,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:49:59,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:59,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:49:59,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:59,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:49:59,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:59,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:49:59,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:59,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:49:59,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:59,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:49:59,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:59,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:49:59,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:59,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:49:59,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:59,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:49:59,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:59,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:49:59,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:59,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:49:59,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:59,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:49:59,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:59,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:49:59,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:49:59,864 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 08:49:59,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:49:59,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008731467] [2024-11-20 08:49:59,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008731467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:49:59,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:49:59,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-11-20 08:49:59,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934844433] [2024-11-20 08:49:59,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:49:59,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-20 08:49:59,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:49:59,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-20 08:49:59,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=419, Unknown=0, NotChecked=0, Total=506 [2024-11-20 08:49:59,866 INFO L87 Difference]: Start difference. First operand 1342 states and 1655 transitions. Second operand has 23 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 20 states have internal predecessors, (56), 9 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 9 states have call predecessors, (14), 9 states have call successors, (14) [2024-11-20 08:50:01,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:50:01,511 INFO L93 Difference]: Finished difference Result 2444 states and 3016 transitions. [2024-11-20 08:50:01,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-20 08:50:01,512 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 20 states have internal predecessors, (56), 9 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 9 states have call predecessors, (14), 9 states have call successors, (14) Word has length 123 [2024-11-20 08:50:01,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:50:01,518 INFO L225 Difference]: With dead ends: 2444 [2024-11-20 08:50:01,518 INFO L226 Difference]: Without dead ends: 1567 [2024-11-20 08:50:01,520 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=260, Invalid=1000, Unknown=0, NotChecked=0, Total=1260 [2024-11-20 08:50:01,520 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 555 mSDsluCounter, 1600 mSDsCounter, 0 mSdLazyCounter, 1495 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 1803 SdHoareTripleChecker+Invalid, 1596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:50:01,520 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [555 Valid, 1803 Invalid, 1596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1495 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-20 08:50:01,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1567 states. [2024-11-20 08:50:01,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1567 to 1363. [2024-11-20 08:50:01,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1363 states, 1264 states have (on average 1.2136075949367089) internal successors, (1534), 1271 states have internal predecessors, (1534), 72 states have call successors, (72), 26 states have call predecessors, (72), 26 states have return successors, (72), 65 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-20 08:50:01,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1363 states to 1363 states and 1678 transitions. [2024-11-20 08:50:01,663 INFO L78 Accepts]: Start accepts. Automaton has 1363 states and 1678 transitions. Word has length 123 [2024-11-20 08:50:01,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:50:01,664 INFO L471 AbstractCegarLoop]: Abstraction has 1363 states and 1678 transitions. [2024-11-20 08:50:01,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 20 states have internal predecessors, (56), 9 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 9 states have call predecessors, (14), 9 states have call successors, (14) [2024-11-20 08:50:01,664 INFO L276 IsEmpty]: Start isEmpty. Operand 1363 states and 1678 transitions. [2024-11-20 08:50:01,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-20 08:50:01,665 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:50:01,665 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:50:01,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-20 08:50:01,666 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:50:01,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:50:01,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1958383553, now seen corresponding path program 1 times [2024-11-20 08:50:01,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:50:01,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373041390] [2024-11-20 08:50:01,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:50:01,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:50:01,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:02,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:50:02,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:02,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:50:02,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:02,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:50:02,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:02,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:50:02,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:02,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:50:02,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:02,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:50:02,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:02,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:50:02,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:02,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:50:02,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:02,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:50:02,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:02,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:50:02,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:02,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:50:02,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:02,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:50:02,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:02,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:50:02,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:02,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:50:02,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:02,566 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 08:50:02,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:50:02,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373041390] [2024-11-20 08:50:02,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373041390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:50:02,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:50:02,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-20 08:50:02,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572175286] [2024-11-20 08:50:02,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:50:02,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-20 08:50:02,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:50:02,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-20 08:50:02,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2024-11-20 08:50:02,569 INFO L87 Difference]: Start difference. First operand 1363 states and 1678 transitions. Second operand has 17 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 16 states have internal predecessors, (56), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-20 08:50:03,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:50:03,905 INFO L93 Difference]: Finished difference Result 2692 states and 3319 transitions. [2024-11-20 08:50:03,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-20 08:50:03,906 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 16 states have internal predecessors, (56), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) Word has length 123 [2024-11-20 08:50:03,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:50:03,913 INFO L225 Difference]: With dead ends: 2692 [2024-11-20 08:50:03,913 INFO L226 Difference]: Without dead ends: 1804 [2024-11-20 08:50:03,915 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=228, Invalid=764, Unknown=0, NotChecked=0, Total=992 [2024-11-20 08:50:03,915 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 360 mSDsluCounter, 1333 mSDsCounter, 0 mSdLazyCounter, 987 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 1502 SdHoareTripleChecker+Invalid, 1096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-20 08:50:03,916 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 1502 Invalid, 1096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 987 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-20 08:50:03,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1804 states. [2024-11-20 08:50:04,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1804 to 1371. [2024-11-20 08:50:04,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1371 states, 1272 states have (on average 1.2122641509433962) internal successors, (1542), 1279 states have internal predecessors, (1542), 72 states have call successors, (72), 26 states have call predecessors, (72), 26 states have return successors, (72), 65 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-20 08:50:04,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1371 states to 1371 states and 1686 transitions. [2024-11-20 08:50:04,082 INFO L78 Accepts]: Start accepts. Automaton has 1371 states and 1686 transitions. Word has length 123 [2024-11-20 08:50:04,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:50:04,083 INFO L471 AbstractCegarLoop]: Abstraction has 1371 states and 1686 transitions. [2024-11-20 08:50:04,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 16 states have internal predecessors, (56), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-20 08:50:04,083 INFO L276 IsEmpty]: Start isEmpty. Operand 1371 states and 1686 transitions. [2024-11-20 08:50:04,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-20 08:50:04,084 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:50:04,084 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:50:04,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-20 08:50:04,085 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:50:04,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:50:04,085 INFO L85 PathProgramCache]: Analyzing trace with hash -100722813, now seen corresponding path program 1 times [2024-11-20 08:50:04,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:50:04,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995228803] [2024-11-20 08:50:04,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:50:04,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:50:04,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:04,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:50:04,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:04,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:50:04,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:04,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:50:04,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:04,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:50:04,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:04,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:50:04,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:04,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:50:04,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:04,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:50:04,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:04,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:50:04,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:04,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:50:04,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:04,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:50:04,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:04,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:50:04,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:04,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:50:04,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:04,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:50:04,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:04,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:50:04,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:04,761 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 08:50:04,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:50:04,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995228803] [2024-11-20 08:50:04,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995228803] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:50:04,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:50:04,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-20 08:50:04,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35234590] [2024-11-20 08:50:04,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:50:04,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-20 08:50:04,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:50:04,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-20 08:50:04,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2024-11-20 08:50:04,776 INFO L87 Difference]: Start difference. First operand 1371 states and 1686 transitions. Second operand has 15 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-20 08:50:06,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:50:06,052 INFO L93 Difference]: Finished difference Result 2922 states and 3586 transitions. [2024-11-20 08:50:06,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-20 08:50:06,053 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 123 [2024-11-20 08:50:06,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:50:06,059 INFO L225 Difference]: With dead ends: 2922 [2024-11-20 08:50:06,060 INFO L226 Difference]: Without dead ends: 2020 [2024-11-20 08:50:06,062 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=189, Invalid=681, Unknown=0, NotChecked=0, Total=870 [2024-11-20 08:50:06,063 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 564 mSDsluCounter, 1105 mSDsCounter, 0 mSdLazyCounter, 1112 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 564 SdHoareTripleChecker+Valid, 1263 SdHoareTripleChecker+Invalid, 1286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 1112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-20 08:50:06,063 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [564 Valid, 1263 Invalid, 1286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 1112 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-20 08:50:06,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2020 states. [2024-11-20 08:50:06,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2020 to 1367. [2024-11-20 08:50:06,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1367 states, 1268 states have (on average 1.2097791798107256) internal successors, (1534), 1275 states have internal predecessors, (1534), 72 states have call successors, (72), 26 states have call predecessors, (72), 26 states have return successors, (72), 65 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-20 08:50:06,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 1678 transitions. [2024-11-20 08:50:06,239 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 1678 transitions. Word has length 123 [2024-11-20 08:50:06,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:50:06,240 INFO L471 AbstractCegarLoop]: Abstraction has 1367 states and 1678 transitions. [2024-11-20 08:50:06,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-20 08:50:06,240 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 1678 transitions. [2024-11-20 08:50:06,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-20 08:50:06,241 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:50:06,242 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:50:06,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-20 08:50:06,242 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:50:06,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:50:06,242 INFO L85 PathProgramCache]: Analyzing trace with hash 17066887, now seen corresponding path program 1 times [2024-11-20 08:50:06,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:50:06,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463891099] [2024-11-20 08:50:06,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:50:06,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:50:06,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:06,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:50:06,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:06,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:50:06,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:06,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:50:06,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:06,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:50:06,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:06,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:50:06,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:06,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:50:06,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:06,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:50:06,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:06,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:50:06,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:06,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:50:06,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:06,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:50:06,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:06,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:50:06,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:06,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:50:06,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:06,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:50:06,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:06,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:50:06,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:06,881 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 08:50:06,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:50:06,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463891099] [2024-11-20 08:50:06,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463891099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:50:06,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:50:06,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-20 08:50:06,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093065229] [2024-11-20 08:50:06,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:50:06,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 08:50:06,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:50:06,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 08:50:06,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-20 08:50:06,884 INFO L87 Difference]: Start difference. First operand 1367 states and 1678 transitions. Second operand has 13 states, 12 states have (on average 4.666666666666667) internal successors, (56), 13 states have internal predecessors, (56), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-20 08:50:07,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:50:07,744 INFO L93 Difference]: Finished difference Result 2758 states and 3391 transitions. [2024-11-20 08:50:07,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-20 08:50:07,745 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.666666666666667) internal successors, (56), 13 states have internal predecessors, (56), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 123 [2024-11-20 08:50:07,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:50:07,750 INFO L225 Difference]: With dead ends: 2758 [2024-11-20 08:50:07,750 INFO L226 Difference]: Without dead ends: 1870 [2024-11-20 08:50:07,752 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=145, Invalid=407, Unknown=0, NotChecked=0, Total=552 [2024-11-20 08:50:07,752 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 622 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 929 SdHoareTripleChecker+Invalid, 758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 08:50:07,753 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [622 Valid, 929 Invalid, 758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 08:50:07,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1870 states. [2024-11-20 08:50:07,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1870 to 1376. [2024-11-20 08:50:07,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1376 states, 1277 states have (on average 1.2083007047768206) internal successors, (1543), 1284 states have internal predecessors, (1543), 72 states have call successors, (72), 26 states have call predecessors, (72), 26 states have return successors, (72), 65 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-20 08:50:07,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 1687 transitions. [2024-11-20 08:50:07,947 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 1687 transitions. Word has length 123 [2024-11-20 08:50:07,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:50:07,947 INFO L471 AbstractCegarLoop]: Abstraction has 1376 states and 1687 transitions. [2024-11-20 08:50:07,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.666666666666667) internal successors, (56), 13 states have internal predecessors, (56), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-20 08:50:07,947 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 1687 transitions. [2024-11-20 08:50:07,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-20 08:50:07,951 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:50:07,951 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:50:07,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-20 08:50:07,952 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:50:07,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:50:07,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1571281015, now seen corresponding path program 1 times [2024-11-20 08:50:07,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:50:07,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503873304] [2024-11-20 08:50:07,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:50:07,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:50:07,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:08,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:50:08,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:08,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:50:08,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:08,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:50:08,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:08,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:50:08,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:08,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:50:08,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:08,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:50:08,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:08,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:50:08,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:08,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:50:08,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:08,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:50:08,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:08,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:50:08,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:08,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:50:08,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:08,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:50:08,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:08,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:50:08,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:08,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:50:08,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:08,349 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 08:50:08,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:50:08,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503873304] [2024-11-20 08:50:08,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503873304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:50:08,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:50:08,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-20 08:50:08,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901199386] [2024-11-20 08:50:08,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:50:08,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 08:50:08,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:50:08,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 08:50:08,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-20 08:50:08,351 INFO L87 Difference]: Start difference. First operand 1376 states and 1687 transitions. Second operand has 13 states, 12 states have (on average 4.666666666666667) internal successors, (56), 13 states have internal predecessors, (56), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-20 08:50:09,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:50:09,106 INFO L93 Difference]: Finished difference Result 2848 states and 3486 transitions. [2024-11-20 08:50:09,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 08:50:09,106 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.666666666666667) internal successors, (56), 13 states have internal predecessors, (56), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 123 [2024-11-20 08:50:09,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:50:09,110 INFO L225 Difference]: With dead ends: 2848 [2024-11-20 08:50:09,111 INFO L226 Difference]: Without dead ends: 1960 [2024-11-20 08:50:09,112 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=149, Invalid=451, Unknown=0, NotChecked=0, Total=600 [2024-11-20 08:50:09,113 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 447 mSDsluCounter, 1022 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 08:50:09,113 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [447 Valid, 1192 Invalid, 861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 08:50:09,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1960 states. [2024-11-20 08:50:09,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1960 to 1394. [2024-11-20 08:50:09,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1295 states have (on average 1.2123552123552124) internal successors, (1570), 1302 states have internal predecessors, (1570), 72 states have call successors, (72), 26 states have call predecessors, (72), 26 states have return successors, (72), 65 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-20 08:50:09,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 1714 transitions. [2024-11-20 08:50:09,325 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 1714 transitions. Word has length 123 [2024-11-20 08:50:09,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:50:09,326 INFO L471 AbstractCegarLoop]: Abstraction has 1394 states and 1714 transitions. [2024-11-20 08:50:09,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.666666666666667) internal successors, (56), 13 states have internal predecessors, (56), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-20 08:50:09,326 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 1714 transitions. [2024-11-20 08:50:09,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-20 08:50:09,328 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:50:09,328 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:50:09,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-20 08:50:09,328 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:50:09,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:50:09,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1443822603, now seen corresponding path program 1 times [2024-11-20 08:50:09,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:50:09,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340522591] [2024-11-20 08:50:09,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:50:09,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:50:09,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:11,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:50:11,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:11,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:50:11,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:11,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:50:11,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:11,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:50:11,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:11,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:50:11,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:11,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:50:11,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:11,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:50:11,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:11,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:50:11,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:11,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:50:11,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:11,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:50:11,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:11,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:50:11,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:11,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:50:11,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:11,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:50:11,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:11,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:50:11,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:11,057 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 08:50:11,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:50:11,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340522591] [2024-11-20 08:50:11,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340522591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:50:11,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:50:11,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2024-11-20 08:50:11,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905204389] [2024-11-20 08:50:11,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:50:11,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-20 08:50:11,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:50:11,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-20 08:50:11,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=539, Unknown=0, NotChecked=0, Total=650 [2024-11-20 08:50:11,059 INFO L87 Difference]: Start difference. First operand 1394 states and 1714 transitions. Second operand has 26 states, 22 states have (on average 2.5454545454545454) internal successors, (56), 23 states have internal predecessors, (56), 9 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 9 states have call predecessors, (14), 9 states have call successors, (14) [2024-11-20 08:50:13,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:50:13,166 INFO L93 Difference]: Finished difference Result 2663 states and 3259 transitions. [2024-11-20 08:50:13,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-20 08:50:13,167 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 22 states have (on average 2.5454545454545454) internal successors, (56), 23 states have internal predecessors, (56), 9 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 9 states have call predecessors, (14), 9 states have call successors, (14) Word has length 123 [2024-11-20 08:50:13,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:50:13,171 INFO L225 Difference]: With dead ends: 2663 [2024-11-20 08:50:13,171 INFO L226 Difference]: Without dead ends: 1771 [2024-11-20 08:50:13,173 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=455, Invalid=1707, Unknown=0, NotChecked=0, Total=2162 [2024-11-20 08:50:13,174 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 786 mSDsluCounter, 1883 mSDsCounter, 0 mSdLazyCounter, 1867 mSolverCounterSat, 238 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 786 SdHoareTripleChecker+Valid, 2047 SdHoareTripleChecker+Invalid, 2105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 238 IncrementalHoareTripleChecker+Valid, 1867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-20 08:50:13,174 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [786 Valid, 2047 Invalid, 2105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [238 Valid, 1867 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-20 08:50:13,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1771 states. [2024-11-20 08:50:13,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1771 to 1408. [2024-11-20 08:50:13,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1408 states, 1308 states have (on average 1.2087155963302751) internal successors, (1581), 1315 states have internal predecessors, (1581), 72 states have call successors, (72), 27 states have call predecessors, (72), 27 states have return successors, (72), 65 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-20 08:50:13,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1408 states to 1408 states and 1725 transitions. [2024-11-20 08:50:13,367 INFO L78 Accepts]: Start accepts. Automaton has 1408 states and 1725 transitions. Word has length 123 [2024-11-20 08:50:13,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:50:13,368 INFO L471 AbstractCegarLoop]: Abstraction has 1408 states and 1725 transitions. [2024-11-20 08:50:13,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 22 states have (on average 2.5454545454545454) internal successors, (56), 23 states have internal predecessors, (56), 9 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 9 states have call predecessors, (14), 9 states have call successors, (14) [2024-11-20 08:50:13,368 INFO L276 IsEmpty]: Start isEmpty. Operand 1408 states and 1725 transitions. [2024-11-20 08:50:13,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-20 08:50:13,369 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:50:13,369 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:50:13,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-20 08:50:13,370 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:50:13,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:50:13,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1943370185, now seen corresponding path program 1 times [2024-11-20 08:50:13,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:50:13,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345272657] [2024-11-20 08:50:13,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:50:13,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:50:13,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:13,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:50:13,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:13,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:50:13,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:13,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:50:13,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:13,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:50:13,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:13,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:50:13,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:13,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:50:13,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:13,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:50:13,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:13,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:50:13,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:13,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:50:13,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:13,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:50:13,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:13,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:50:13,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:13,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:50:13,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:13,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:50:13,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:13,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:50:13,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:13,778 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 08:50:13,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:50:13,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345272657] [2024-11-20 08:50:13,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345272657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:50:13,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:50:13,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-20 08:50:13,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194197013] [2024-11-20 08:50:13,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:50:13,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 08:50:13,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:50:13,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 08:50:13,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-20 08:50:13,780 INFO L87 Difference]: Start difference. First operand 1408 states and 1725 transitions. Second operand has 11 states, 10 states have (on average 5.6) internal successors, (56), 11 states have internal predecessors, (56), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-20 08:50:14,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:50:14,396 INFO L93 Difference]: Finished difference Result 2721 states and 3349 transitions. [2024-11-20 08:50:14,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 08:50:14,396 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.6) internal successors, (56), 11 states have internal predecessors, (56), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 123 [2024-11-20 08:50:14,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:50:14,399 INFO L225 Difference]: With dead ends: 2721 [2024-11-20 08:50:14,399 INFO L226 Difference]: Without dead ends: 1739 [2024-11-20 08:50:14,401 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2024-11-20 08:50:14,401 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 312 mSDsluCounter, 688 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 08:50:14,401 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 862 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 08:50:14,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1739 states. [2024-11-20 08:50:14,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1739 to 1432. [2024-11-20 08:50:14,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1332 states have (on average 1.204954954954955) internal successors, (1605), 1339 states have internal predecessors, (1605), 72 states have call successors, (72), 27 states have call predecessors, (72), 27 states have return successors, (72), 65 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-20 08:50:14,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 1749 transitions. [2024-11-20 08:50:14,544 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 1749 transitions. Word has length 123 [2024-11-20 08:50:14,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:50:14,544 INFO L471 AbstractCegarLoop]: Abstraction has 1432 states and 1749 transitions. [2024-11-20 08:50:14,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.6) internal successors, (56), 11 states have internal predecessors, (56), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-20 08:50:14,545 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 1749 transitions. [2024-11-20 08:50:14,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-20 08:50:14,546 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:50:14,546 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:50:14,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-20 08:50:14,546 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:50:14,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:50:14,547 INFO L85 PathProgramCache]: Analyzing trace with hash -965393717, now seen corresponding path program 1 times [2024-11-20 08:50:14,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:50:14,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999471378] [2024-11-20 08:50:14,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:50:14,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:50:14,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:15,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:50:15,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:15,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:50:15,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:15,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:50:15,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:15,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:50:15,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:15,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:50:15,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:15,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:50:15,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:15,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:50:15,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:15,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:50:15,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:15,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:50:15,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:15,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:50:15,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:15,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:50:15,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:15,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:50:15,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:15,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:50:15,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:15,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:50:15,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:50:15,256 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 08:50:15,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:50:15,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999471378] [2024-11-20 08:50:15,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999471378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:50:15,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:50:15,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-20 08:50:15,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875491409] [2024-11-20 08:50:15,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:50:15,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-20 08:50:15,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:50:15,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-20 08:50:15,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2024-11-20 08:50:15,258 INFO L87 Difference]: Start difference. First operand 1432 states and 1749 transitions. Second operand has 16 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 states have internal predecessors, (56), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14)