./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/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 ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --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 64bit --witnessprinter.graph.data.programhash b1b2a361b7351c4ac2fc0213f47206309b2fae43ca25ec3cefac8a1c8b001422 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-20 00:40:12,632 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 00:40:12,634 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 00:40:12,660 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 00:40:12,661 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 00:40:12,662 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 00:40:12,663 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 00:40:12,666 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 00:40:12,667 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 00:40:12,668 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 00:40:12,669 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 00:40:12,670 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 00:40:12,671 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 00:40:12,673 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 00:40:12,674 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 00:40:12,675 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 00:40:12,676 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 00:40:12,680 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 00:40:12,681 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 00:40:12,682 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 00:40:12,685 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 00:40:12,686 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 00:40:12,687 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 00:40:12,687 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 00:40:12,689 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 00:40:12,692 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 00:40:12,695 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 00:40:12,696 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 00:40:12,697 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 00:40:12,697 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 00:40:12,698 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 00:40:12,698 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 00:40:12,699 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 00:40:12,700 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 00:40:12,700 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 00:40:12,701 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 00:40:12,702 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 00:40:12,702 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 00:40:12,702 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 00:40:12,702 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 00:40:12,703 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 00:40:12,704 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 00:40:12,705 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-20 00:40:12,723 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 00:40:12,723 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 00:40:12,723 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 00:40:12,723 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 00:40:12,724 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 00:40:12,724 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 00:40:12,724 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 00:40:12,725 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 00:40:12,725 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 00:40:12,726 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 00:40:12,726 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 00:40:12,726 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 00:40:12,726 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 00:40:12,726 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 00:40:12,726 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 00:40:12,726 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 00:40:12,727 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 00:40:12,727 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 00:40:12,727 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 00:40:12,727 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 00:40:12,727 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 00:40:12,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 00:40:12,728 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 00:40:12,728 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 00:40:12,728 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 00:40:12,728 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 00:40:12,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 00:40:12,728 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 00:40:12,728 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 00:40:12,729 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 00:40:12,729 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1b2a361b7351c4ac2fc0213f47206309b2fae43ca25ec3cefac8a1c8b001422 [2022-07-20 00:40:12,945 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 00:40:12,960 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 00:40:12,962 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 00:40:12,962 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 00:40:12,963 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 00:40:12,964 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i [2022-07-20 00:40:13,036 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dffb36267/af41bc33073d47d288eb849023141dcf/FLAG005b4af42 [2022-07-20 00:40:13,565 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 00:40:13,566 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i [2022-07-20 00:40:13,596 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dffb36267/af41bc33073d47d288eb849023141dcf/FLAG005b4af42 [2022-07-20 00:40:14,053 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dffb36267/af41bc33073d47d288eb849023141dcf [2022-07-20 00:40:14,055 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 00:40:14,056 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 00:40:14,057 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 00:40:14,057 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 00:40:14,066 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 00:40:14,067 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:40:14" (1/1) ... [2022-07-20 00:40:14,068 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e81ca9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:40:14, skipping insertion in model container [2022-07-20 00:40:14,068 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:40:14" (1/1) ... [2022-07-20 00:40:14,073 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 00:40:14,156 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 00:40:14,716 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i[129978,129991] [2022-07-20 00:40:14,789 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 00:40:14,807 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 00:40:14,967 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i[129978,129991] [2022-07-20 00:40:14,986 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 00:40:15,018 INFO L208 MainTranslator]: Completed translation [2022-07-20 00:40:15,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:40:15 WrapperNode [2022-07-20 00:40:15,020 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 00:40:15,021 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 00:40:15,021 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 00:40:15,021 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 00:40:15,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:40:15" (1/1) ... [2022-07-20 00:40:15,070 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:40:15" (1/1) ... [2022-07-20 00:40:15,145 INFO L137 Inliner]: procedures = 188, calls = 548, calls flagged for inlining = 71, calls inlined = 66, statements flattened = 1598 [2022-07-20 00:40:15,146 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 00:40:15,147 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 00:40:15,147 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 00:40:15,147 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 00:40:15,153 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:40:15" (1/1) ... [2022-07-20 00:40:15,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:40:15" (1/1) ... [2022-07-20 00:40:15,173 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:40:15" (1/1) ... [2022-07-20 00:40:15,174 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:40:15" (1/1) ... [2022-07-20 00:40:15,231 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:40:15" (1/1) ... [2022-07-20 00:40:15,241 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:40:15" (1/1) ... [2022-07-20 00:40:15,247 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:40:15" (1/1) ... [2022-07-20 00:40:15,257 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 00:40:15,258 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 00:40:15,258 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 00:40:15,259 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 00:40:15,272 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:40:15" (1/1) ... [2022-07-20 00:40:15,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 00:40:15,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 00:40:15,316 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-20 00:40:15,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-20 00:40:15,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_serio_raw_mutex [2022-07-20 00:40:15,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_serio_raw_mutex [2022-07-20 00:40:15,345 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-07-20 00:40:15,345 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-07-20 00:40:15,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-20 00:40:15,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-20 00:40:15,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-20 00:40:15,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-20 00:40:15,345 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-20 00:40:15,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-20 00:40:15,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-20 00:40:15,346 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-20 00:40:15,346 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-20 00:40:15,346 INFO L130 BoogieDeclarations]: Found specification of procedure kill_fasync [2022-07-20 00:40:15,346 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_fasync [2022-07-20 00:40:15,346 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-07-20 00:40:15,346 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-07-20 00:40:15,346 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-07-20 00:40:15,346 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-07-20 00:40:15,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-20 00:40:15,347 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-20 00:40:15,347 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-20 00:40:15,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-20 00:40:15,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-20 00:40:15,347 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-07-20 00:40:15,347 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-07-20 00:40:15,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-20 00:40:15,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-20 00:40:15,347 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_disconnect [2022-07-20 00:40:15,348 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_disconnect [2022-07-20 00:40:15,348 INFO L130 BoogieDeclarations]: Found specification of procedure serio_continue_rx [2022-07-20 00:40:15,348 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_continue_rx [2022-07-20 00:40:15,348 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-20 00:40:15,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-20 00:40:15,348 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-20 00:40:15,348 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-20 00:40:15,349 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-20 00:40:15,349 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_poll [2022-07-20 00:40:15,349 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_poll [2022-07-20 00:40:15,349 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-20 00:40:15,349 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-20 00:40:15,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-20 00:40:15,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-20 00:40:15,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 00:40:15,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-20 00:40:15,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-20 00:40:15,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-20 00:40:15,383 INFO L130 BoogieDeclarations]: Found specification of procedure serio_set_drvdata [2022-07-20 00:40:15,383 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_set_drvdata [2022-07-20 00:40:15,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-20 00:40:15,383 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-20 00:40:15,383 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-20 00:40:15,383 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-20 00:40:15,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-20 00:40:15,383 INFO L130 BoogieDeclarations]: Found specification of procedure misc_register [2022-07-20 00:40:15,383 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_register [2022-07-20 00:40:15,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-20 00:40:15,383 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-20 00:40:15,383 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-20 00:40:15,384 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-07-20 00:40:15,384 INFO L130 BoogieDeclarations]: Found specification of procedure serio_pause_rx [2022-07-20 00:40:15,384 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_pause_rx [2022-07-20 00:40:15,384 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2022-07-20 00:40:15,384 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2022-07-20 00:40:15,384 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2022-07-20 00:40:15,384 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2022-07-20 00:40:15,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-20 00:40:15,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-20 00:40:15,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_2 [2022-07-20 00:40:15,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_2 [2022-07-20 00:40:15,384 INFO L130 BoogieDeclarations]: Found specification of procedure serio_get_drvdata [2022-07-20 00:40:15,384 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_get_drvdata [2022-07-20 00:40:15,384 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-20 00:40:15,384 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-20 00:40:15,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_serio_raw_mutex [2022-07-20 00:40:15,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_serio_raw_mutex [2022-07-20 00:40:15,384 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-07-20 00:40:15,384 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-07-20 00:40:15,385 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-20 00:40:15,385 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-20 00:40:15,385 INFO L130 BoogieDeclarations]: Found specification of procedure serio_close [2022-07-20 00:40:15,385 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_close [2022-07-20 00:40:15,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_serio_raw_mutex [2022-07-20 00:40:15,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_serio_raw_mutex [2022-07-20 00:40:15,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-20 00:40:15,385 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_write [2022-07-20 00:40:15,385 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_write [2022-07-20 00:40:15,385 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_fasync [2022-07-20 00:40:15,385 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_fasync [2022-07-20 00:40:15,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 00:40:15,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 00:40:15,685 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 00:40:15,686 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 00:40:15,770 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-20 00:40:16,407 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 00:40:16,415 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 00:40:16,415 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-20 00:40:16,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 12:40:16 BoogieIcfgContainer [2022-07-20 00:40:16,417 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 00:40:16,419 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 00:40:16,419 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 00:40:16,421 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 00:40:16,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 12:40:14" (1/3) ... [2022-07-20 00:40:16,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@562c0644 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 12:40:16, skipping insertion in model container [2022-07-20 00:40:16,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:40:15" (2/3) ... [2022-07-20 00:40:16,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@562c0644 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 12:40:16, skipping insertion in model container [2022-07-20 00:40:16,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 12:40:16" (3/3) ... [2022-07-20 00:40:16,424 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i [2022-07-20 00:40:16,433 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 00:40:16,434 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-20 00:40:16,473 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 00:40:16,478 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@55d56c5a, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@576a4e36 [2022-07-20 00:40:16,478 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-20 00:40:16,483 INFO L276 IsEmpty]: Start isEmpty. Operand has 530 states, 377 states have (on average 1.336870026525199) internal successors, (504), 396 states have internal predecessors, (504), 113 states have call successors, (113), 39 states have call predecessors, (113), 38 states have return successors, (109), 109 states have call predecessors, (109), 109 states have call successors, (109) [2022-07-20 00:40:16,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-07-20 00:40:16,495 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:40:16,495 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:40:16,496 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:40:16,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:40:16,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1422664901, now seen corresponding path program 1 times [2022-07-20 00:40:16,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:40:16,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889381200] [2022-07-20 00:40:16,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:40:16,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:40:16,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:16,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:40:16,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:16,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:16,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:16,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:16,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:16,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:40:16,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:16,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:16,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:16,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:16,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:16,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:40:16,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:16,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:16,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:16,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:16,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:16,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 00:40:16,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:16,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:16,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:16,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:16,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:16,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 00:40:16,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:16,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:16,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:16,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:16,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:16,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 00:40:16,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:16,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:16,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:16,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:16,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:17,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 00:40:17,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:17,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-20 00:40:17,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:17,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-20 00:40:17,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:17,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-20 00:40:17,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:17,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-20 00:40:17,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:17,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-20 00:40:17,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:17,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-20 00:40:17,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:17,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-20 00:40:17,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:17,088 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2022-07-20 00:40:17,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:40:17,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889381200] [2022-07-20 00:40:17,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889381200] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:40:17,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:40:17,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-20 00:40:17,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052776203] [2022-07-20 00:40:17,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:40:17,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 00:40:17,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:40:17,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 00:40:17,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 00:40:17,120 INFO L87 Difference]: Start difference. First operand has 530 states, 377 states have (on average 1.336870026525199) internal successors, (504), 396 states have internal predecessors, (504), 113 states have call successors, (113), 39 states have call predecessors, (113), 38 states have return successors, (109), 109 states have call predecessors, (109), 109 states have call successors, (109) Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-20 00:40:17,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:40:17,676 INFO L93 Difference]: Finished difference Result 1079 states and 1520 transitions. [2022-07-20 00:40:17,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 00:40:17,678 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 168 [2022-07-20 00:40:17,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:40:17,693 INFO L225 Difference]: With dead ends: 1079 [2022-07-20 00:40:17,693 INFO L226 Difference]: Without dead ends: 543 [2022-07-20 00:40:17,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-20 00:40:17,699 INFO L413 NwaCegarLoop]: 674 mSDtfsCounter, 494 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 394 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 993 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 394 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-20 00:40:17,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 993 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [394 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-20 00:40:17,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2022-07-20 00:40:17,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 519. [2022-07-20 00:40:17,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 372 states have (on average 1.3091397849462365) internal successors, (487), 385 states have internal predecessors, (487), 109 states have call successors, (109), 38 states have call predecessors, (109), 37 states have return successors, (101), 101 states have call predecessors, (101), 101 states have call successors, (101) [2022-07-20 00:40:17,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 697 transitions. [2022-07-20 00:40:17,756 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 697 transitions. Word has length 168 [2022-07-20 00:40:17,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:40:17,757 INFO L495 AbstractCegarLoop]: Abstraction has 519 states and 697 transitions. [2022-07-20 00:40:17,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-20 00:40:17,757 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 697 transitions. [2022-07-20 00:40:17,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-07-20 00:40:17,760 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:40:17,760 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:40:17,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-20 00:40:17,760 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:40:17,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:40:17,761 INFO L85 PathProgramCache]: Analyzing trace with hash 459525447, now seen corresponding path program 1 times [2022-07-20 00:40:17,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:40:17,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377329847] [2022-07-20 00:40:17,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:40:17,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:40:17,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:17,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:40:17,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:17,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:17,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:17,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:17,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:17,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:40:17,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:17,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:17,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:17,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:17,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:17,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:40:17,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:17,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:17,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:17,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:17,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:17,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 00:40:17,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:17,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:17,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:17,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:17,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:17,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 00:40:17,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:17,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:17,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:17,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:17,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:17,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 00:40:17,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:17,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:17,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:17,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:17,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:17,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 00:40:17,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:17,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-20 00:40:17,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:17,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-20 00:40:17,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:17,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-20 00:40:17,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:18,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-20 00:40:18,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:18,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-20 00:40:18,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:18,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-20 00:40:18,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:18,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-20 00:40:18,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:18,016 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2022-07-20 00:40:18,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:40:18,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377329847] [2022-07-20 00:40:18,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377329847] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:40:18,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:40:18,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 00:40:18,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937239913] [2022-07-20 00:40:18,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:40:18,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 00:40:18,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:40:18,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 00:40:18,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-20 00:40:18,020 INFO L87 Difference]: Start difference. First operand 519 states and 697 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-07-20 00:40:19,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:40:19,049 INFO L93 Difference]: Finished difference Result 1508 states and 2028 transitions. [2022-07-20 00:40:19,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 00:40:19,049 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 168 [2022-07-20 00:40:19,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:40:19,054 INFO L225 Difference]: With dead ends: 1508 [2022-07-20 00:40:19,054 INFO L226 Difference]: Without dead ends: 1025 [2022-07-20 00:40:19,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-20 00:40:19,056 INFO L413 NwaCegarLoop]: 751 mSDtfsCounter, 1186 mSDsluCounter, 1029 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 520 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1245 SdHoareTripleChecker+Valid, 1780 SdHoareTripleChecker+Invalid, 1276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 520 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-20 00:40:19,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1245 Valid, 1780 Invalid, 1276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [520 Valid, 756 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-20 00:40:19,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1025 states. [2022-07-20 00:40:19,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1025 to 975. [2022-07-20 00:40:19,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 975 states, 706 states have (on average 1.3130311614730878) internal successors, (927), 725 states have internal predecessors, (927), 195 states have call successors, (195), 74 states have call predecessors, (195), 73 states have return successors, (187), 187 states have call predecessors, (187), 187 states have call successors, (187) [2022-07-20 00:40:19,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 975 states to 975 states and 1309 transitions. [2022-07-20 00:40:19,093 INFO L78 Accepts]: Start accepts. Automaton has 975 states and 1309 transitions. Word has length 168 [2022-07-20 00:40:19,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:40:19,093 INFO L495 AbstractCegarLoop]: Abstraction has 975 states and 1309 transitions. [2022-07-20 00:40:19,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-07-20 00:40:19,094 INFO L276 IsEmpty]: Start isEmpty. Operand 975 states and 1309 transitions. [2022-07-20 00:40:19,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-07-20 00:40:19,096 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:40:19,096 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:40:19,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-20 00:40:19,097 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:40:19,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:40:19,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1296910670, now seen corresponding path program 1 times [2022-07-20 00:40:19,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:40:19,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489350867] [2022-07-20 00:40:19,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:40:19,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:40:19,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:40:19,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:19,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:19,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:40:19,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:19,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:19,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:40:19,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:19,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:19,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 00:40:19,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:19,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:19,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 00:40:19,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:19,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:19,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 00:40:19,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:19,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:19,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 00:40:19,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-20 00:40:19,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-20 00:40:19,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-20 00:40:19,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-20 00:40:19,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-20 00:40:19,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-20 00:40:19,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-20 00:40:19,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-20 00:40:19,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:19,293 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2022-07-20 00:40:19,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:40:19,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489350867] [2022-07-20 00:40:19,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489350867] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:40:19,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:40:19,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 00:40:19,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266612743] [2022-07-20 00:40:19,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:40:19,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 00:40:19,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:40:19,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 00:40:19,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-20 00:40:19,296 INFO L87 Difference]: Start difference. First operand 975 states and 1309 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-20 00:40:20,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:40:20,165 INFO L93 Difference]: Finished difference Result 2455 states and 3239 transitions. [2022-07-20 00:40:20,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 00:40:20,165 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 174 [2022-07-20 00:40:20,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:40:20,174 INFO L225 Difference]: With dead ends: 2455 [2022-07-20 00:40:20,174 INFO L226 Difference]: Without dead ends: 1516 [2022-07-20 00:40:20,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-20 00:40:20,178 INFO L413 NwaCegarLoop]: 699 mSDtfsCounter, 863 mSDsluCounter, 931 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 406 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 897 SdHoareTripleChecker+Valid, 1630 SdHoareTripleChecker+Invalid, 1051 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 406 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-20 00:40:20,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [897 Valid, 1630 Invalid, 1051 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [406 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-20 00:40:20,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1516 states. [2022-07-20 00:40:20,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1516 to 1438. [2022-07-20 00:40:20,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1438 states, 1042 states have (on average 1.289827255278311) internal successors, (1344), 1073 states have internal predecessors, (1344), 264 states have call successors, (264), 128 states have call predecessors, (264), 131 states have return successors, (272), 252 states have call predecessors, (272), 256 states have call successors, (272) [2022-07-20 00:40:20,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1438 states to 1438 states and 1880 transitions. [2022-07-20 00:40:20,242 INFO L78 Accepts]: Start accepts. Automaton has 1438 states and 1880 transitions. Word has length 174 [2022-07-20 00:40:20,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:40:20,243 INFO L495 AbstractCegarLoop]: Abstraction has 1438 states and 1880 transitions. [2022-07-20 00:40:20,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-20 00:40:20,243 INFO L276 IsEmpty]: Start isEmpty. Operand 1438 states and 1880 transitions. [2022-07-20 00:40:20,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-07-20 00:40:20,246 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:40:20,246 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:40:20,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-20 00:40:20,246 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:40:20,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:40:20,247 INFO L85 PathProgramCache]: Analyzing trace with hash -51513060, now seen corresponding path program 1 times [2022-07-20 00:40:20,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:40:20,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483497306] [2022-07-20 00:40:20,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:40:20,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:40:20,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:20,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:40:20,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:20,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:20,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:20,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:20,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:20,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:40:20,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:20,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:20,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:20,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:20,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:20,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:40:20,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:20,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:20,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:20,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:20,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:20,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 00:40:20,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:20,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:20,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:20,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:20,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:20,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 00:40:20,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:20,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:20,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:20,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:20,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:20,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 00:40:20,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:20,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:20,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:20,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:20,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:20,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 00:40:20,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:20,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-20 00:40:20,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:20,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-20 00:40:20,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:20,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-20 00:40:20,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:20,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-20 00:40:20,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:20,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-20 00:40:20,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:20,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-20 00:40:20,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:20,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-20 00:40:20,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:20,437 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2022-07-20 00:40:20,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:40:20,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483497306] [2022-07-20 00:40:20,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483497306] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:40:20,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:40:20,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 00:40:20,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803801208] [2022-07-20 00:40:20,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:40:20,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 00:40:20,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:40:20,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 00:40:20,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-20 00:40:20,439 INFO L87 Difference]: Start difference. First operand 1438 states and 1880 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-07-20 00:40:21,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:40:21,061 INFO L93 Difference]: Finished difference Result 1512 states and 1976 transitions. [2022-07-20 00:40:21,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 00:40:21,062 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 173 [2022-07-20 00:40:21,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:40:21,067 INFO L225 Difference]: With dead ends: 1512 [2022-07-20 00:40:21,067 INFO L226 Difference]: Without dead ends: 1501 [2022-07-20 00:40:21,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-20 00:40:21,068 INFO L413 NwaCegarLoop]: 670 mSDtfsCounter, 934 mSDsluCounter, 907 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 293 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 999 SdHoareTripleChecker+Valid, 1577 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 293 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-20 00:40:21,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [999 Valid, 1577 Invalid, 746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [293 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-20 00:40:21,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1501 states. [2022-07-20 00:40:21,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1501 to 1438. [2022-07-20 00:40:21,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1438 states, 1042 states have (on average 1.2879078694817658) internal successors, (1342), 1073 states have internal predecessors, (1342), 264 states have call successors, (264), 128 states have call predecessors, (264), 131 states have return successors, (272), 252 states have call predecessors, (272), 256 states have call successors, (272) [2022-07-20 00:40:21,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1438 states to 1438 states and 1878 transitions. [2022-07-20 00:40:21,146 INFO L78 Accepts]: Start accepts. Automaton has 1438 states and 1878 transitions. Word has length 173 [2022-07-20 00:40:21,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:40:21,146 INFO L495 AbstractCegarLoop]: Abstraction has 1438 states and 1878 transitions. [2022-07-20 00:40:21,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-07-20 00:40:21,146 INFO L276 IsEmpty]: Start isEmpty. Operand 1438 states and 1878 transitions. [2022-07-20 00:40:21,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-07-20 00:40:21,148 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:40:21,148 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:40:21,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-20 00:40:21,148 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:40:21,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:40:21,149 INFO L85 PathProgramCache]: Analyzing trace with hash 5745242, now seen corresponding path program 1 times [2022-07-20 00:40:21,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:40:21,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551084885] [2022-07-20 00:40:21,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:40:21,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:40:21,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:21,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:40:21,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:21,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:21,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:21,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:21,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:21,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:40:21,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:21,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:21,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:21,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:21,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:21,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:40:21,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:21,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:21,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:21,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:21,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:21,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 00:40:21,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:21,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:21,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:21,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:21,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:21,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 00:40:21,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:21,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:21,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:21,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:21,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:21,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 00:40:21,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:21,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:21,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:21,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:21,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:21,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 00:40:21,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:21,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-20 00:40:21,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:21,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-20 00:40:21,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:21,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-20 00:40:21,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:21,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-20 00:40:21,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:21,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-20 00:40:21,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:21,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-20 00:40:21,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:21,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-20 00:40:21,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:21,423 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2022-07-20 00:40:21,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:40:21,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551084885] [2022-07-20 00:40:21,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551084885] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:40:21,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:40:21,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 00:40:21,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425816120] [2022-07-20 00:40:21,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:40:21,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 00:40:21,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:40:21,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 00:40:21,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-20 00:40:21,425 INFO L87 Difference]: Start difference. First operand 1438 states and 1878 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-20 00:40:22,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:40:22,152 INFO L93 Difference]: Finished difference Result 1492 states and 1949 transitions. [2022-07-20 00:40:22,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 00:40:22,152 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 173 [2022-07-20 00:40:22,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:40:22,158 INFO L225 Difference]: With dead ends: 1492 [2022-07-20 00:40:22,158 INFO L226 Difference]: Without dead ends: 1489 [2022-07-20 00:40:22,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-20 00:40:22,160 INFO L413 NwaCegarLoop]: 653 mSDtfsCounter, 891 mSDsluCounter, 868 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 289 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 950 SdHoareTripleChecker+Valid, 1521 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 289 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-20 00:40:22,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [950 Valid, 1521 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [289 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-20 00:40:22,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1489 states. [2022-07-20 00:40:22,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1489 to 1437. [2022-07-20 00:40:22,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1437 states, 1042 states have (on average 1.2869481765834934) internal successors, (1341), 1072 states have internal predecessors, (1341), 263 states have call successors, (263), 128 states have call predecessors, (263), 131 states have return successors, (272), 252 states have call predecessors, (272), 256 states have call successors, (272) [2022-07-20 00:40:22,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1437 states to 1437 states and 1876 transitions. [2022-07-20 00:40:22,201 INFO L78 Accepts]: Start accepts. Automaton has 1437 states and 1876 transitions. Word has length 173 [2022-07-20 00:40:22,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:40:22,202 INFO L495 AbstractCegarLoop]: Abstraction has 1437 states and 1876 transitions. [2022-07-20 00:40:22,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-20 00:40:22,202 INFO L276 IsEmpty]: Start isEmpty. Operand 1437 states and 1876 transitions. [2022-07-20 00:40:22,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-07-20 00:40:22,204 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:40:22,204 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:40:22,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-20 00:40:22,204 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:40:22,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:40:22,205 INFO L85 PathProgramCache]: Analyzing trace with hash 177987521, now seen corresponding path program 1 times [2022-07-20 00:40:22,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:40:22,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142516231] [2022-07-20 00:40:22,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:40:22,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:40:22,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:22,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:40:22,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:22,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:22,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:22,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:22,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:22,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:40:22,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:22,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:22,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:22,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:22,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:22,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:40:22,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:22,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:22,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:22,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:22,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:22,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 00:40:22,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:22,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:22,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:22,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:22,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:22,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 00:40:22,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:22,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:22,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:22,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:22,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:22,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 00:40:22,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:22,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:22,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:22,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:22,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:22,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 00:40:22,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:22,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-20 00:40:22,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:22,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-20 00:40:22,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:22,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-20 00:40:22,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:22,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-20 00:40:22,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:22,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-20 00:40:22,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:22,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-20 00:40:22,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:22,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-20 00:40:22,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:22,422 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2022-07-20 00:40:22,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:40:22,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142516231] [2022-07-20 00:40:22,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142516231] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:40:22,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:40:22,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 00:40:22,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075624137] [2022-07-20 00:40:22,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:40:22,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 00:40:22,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:40:22,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 00:40:22,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-20 00:40:22,424 INFO L87 Difference]: Start difference. First operand 1437 states and 1876 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-20 00:40:22,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:40:22,943 INFO L93 Difference]: Finished difference Result 1491 states and 1947 transitions. [2022-07-20 00:40:22,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 00:40:22,943 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 174 [2022-07-20 00:40:22,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:40:22,949 INFO L225 Difference]: With dead ends: 1491 [2022-07-20 00:40:22,949 INFO L226 Difference]: Without dead ends: 1488 [2022-07-20 00:40:22,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-20 00:40:22,951 INFO L413 NwaCegarLoop]: 653 mSDtfsCounter, 888 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 295 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 945 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 295 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-20 00:40:22,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [945 Valid, 1247 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [295 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-20 00:40:22,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1488 states. [2022-07-20 00:40:22,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1488 to 1436. [2022-07-20 00:40:22,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1436 states, 1042 states have (on average 1.2859884836852207) internal successors, (1340), 1071 states have internal predecessors, (1340), 262 states have call successors, (262), 128 states have call predecessors, (262), 131 states have return successors, (272), 252 states have call predecessors, (272), 256 states have call successors, (272) [2022-07-20 00:40:22,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 1874 transitions. [2022-07-20 00:40:22,992 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 1874 transitions. Word has length 174 [2022-07-20 00:40:22,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:40:22,992 INFO L495 AbstractCegarLoop]: Abstraction has 1436 states and 1874 transitions. [2022-07-20 00:40:22,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-20 00:40:22,992 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 1874 transitions. [2022-07-20 00:40:22,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-07-20 00:40:22,994 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:40:22,994 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:40:22,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-20 00:40:22,994 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:40:22,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:40:22,995 INFO L85 PathProgramCache]: Analyzing trace with hash 811215818, now seen corresponding path program 1 times [2022-07-20 00:40:22,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:40:22,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367370003] [2022-07-20 00:40:22,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:40:22,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:40:23,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:23,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:40:23,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:23,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:23,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:23,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:23,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:23,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:40:23,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:23,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:23,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:23,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:23,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:23,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:40:23,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:23,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:23,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:23,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:23,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:23,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 00:40:23,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:23,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:23,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:23,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:23,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:23,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 00:40:23,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:23,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:23,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:23,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:23,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:23,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 00:40:23,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:23,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:23,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:23,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:23,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:23,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 00:40:23,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:23,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-20 00:40:23,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:23,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-20 00:40:23,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:23,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-20 00:40:23,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:23,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-20 00:40:23,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:23,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-20 00:40:23,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:23,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-20 00:40:23,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:23,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-20 00:40:23,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:23,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-20 00:40:23,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:23,205 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2022-07-20 00:40:23,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:40:23,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367370003] [2022-07-20 00:40:23,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367370003] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:40:23,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:40:23,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 00:40:23,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484354230] [2022-07-20 00:40:23,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:40:23,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 00:40:23,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:40:23,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 00:40:23,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-20 00:40:23,209 INFO L87 Difference]: Start difference. First operand 1436 states and 1874 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-20 00:40:24,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:40:24,138 INFO L93 Difference]: Finished difference Result 3807 states and 4930 transitions. [2022-07-20 00:40:24,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 00:40:24,139 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 178 [2022-07-20 00:40:24,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:40:24,150 INFO L225 Difference]: With dead ends: 3807 [2022-07-20 00:40:24,151 INFO L226 Difference]: Without dead ends: 2417 [2022-07-20 00:40:24,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-20 00:40:24,156 INFO L413 NwaCegarLoop]: 995 mSDtfsCounter, 815 mSDsluCounter, 1144 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 383 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 863 SdHoareTripleChecker+Valid, 2139 SdHoareTripleChecker+Invalid, 1159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 383 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-20 00:40:24,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [863 Valid, 2139 Invalid, 1159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [383 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-20 00:40:24,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2417 states. [2022-07-20 00:40:24,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2417 to 2304. [2022-07-20 00:40:24,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2304 states, 1691 states have (on average 1.2897693672383206) internal successors, (2181), 1728 states have internal predecessors, (2181), 388 states have call successors, (388), 215 states have call predecessors, (388), 224 states have return successors, (410), 382 states have call predecessors, (410), 382 states have call successors, (410) [2022-07-20 00:40:24,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2304 states to 2304 states and 2979 transitions. [2022-07-20 00:40:24,257 INFO L78 Accepts]: Start accepts. Automaton has 2304 states and 2979 transitions. Word has length 178 [2022-07-20 00:40:24,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:40:24,257 INFO L495 AbstractCegarLoop]: Abstraction has 2304 states and 2979 transitions. [2022-07-20 00:40:24,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-20 00:40:24,258 INFO L276 IsEmpty]: Start isEmpty. Operand 2304 states and 2979 transitions. [2022-07-20 00:40:24,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-07-20 00:40:24,259 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:40:24,259 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:40:24,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-20 00:40:24,260 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:40:24,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:40:24,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1222535741, now seen corresponding path program 1 times [2022-07-20 00:40:24,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:40:24,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629022049] [2022-07-20 00:40:24,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:40:24,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:40:24,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:24,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:40:24,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:24,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:24,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:24,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:24,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:24,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:40:24,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:24,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:24,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:24,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:24,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:24,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:40:24,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:24,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:24,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:24,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:24,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:24,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 00:40:24,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:24,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:24,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:24,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:24,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:24,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 00:40:24,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:24,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:24,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:24,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:24,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:24,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 00:40:24,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:24,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:24,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:24,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:24,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:24,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 00:40:24,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:24,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-20 00:40:24,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:24,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-20 00:40:24,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:24,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-20 00:40:24,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:24,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-20 00:40:24,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:24,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-20 00:40:24,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:24,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-20 00:40:24,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:24,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-20 00:40:24,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:24,452 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2022-07-20 00:40:24,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:40:24,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629022049] [2022-07-20 00:40:24,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629022049] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:40:24,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:40:24,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 00:40:24,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307414350] [2022-07-20 00:40:24,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:40:24,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 00:40:24,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:40:24,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 00:40:24,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-20 00:40:24,454 INFO L87 Difference]: Start difference. First operand 2304 states and 2979 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-20 00:40:25,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:40:25,168 INFO L93 Difference]: Finished difference Result 2392 states and 3084 transitions. [2022-07-20 00:40:25,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 00:40:25,169 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 175 [2022-07-20 00:40:25,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:40:25,176 INFO L225 Difference]: With dead ends: 2392 [2022-07-20 00:40:25,176 INFO L226 Difference]: Without dead ends: 2389 [2022-07-20 00:40:25,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-20 00:40:25,177 INFO L413 NwaCegarLoop]: 649 mSDtfsCounter, 885 mSDsluCounter, 862 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 944 SdHoareTripleChecker+Valid, 1511 SdHoareTripleChecker+Invalid, 728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-20 00:40:25,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [944 Valid, 1511 Invalid, 728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-20 00:40:25,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2389 states. [2022-07-20 00:40:25,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2389 to 2303. [2022-07-20 00:40:25,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2303 states, 1691 states have (on average 1.289178001182732) internal successors, (2180), 1727 states have internal predecessors, (2180), 387 states have call successors, (387), 215 states have call predecessors, (387), 224 states have return successors, (410), 382 states have call predecessors, (410), 382 states have call successors, (410) [2022-07-20 00:40:25,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2303 states to 2303 states and 2977 transitions. [2022-07-20 00:40:25,266 INFO L78 Accepts]: Start accepts. Automaton has 2303 states and 2977 transitions. Word has length 175 [2022-07-20 00:40:25,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:40:25,266 INFO L495 AbstractCegarLoop]: Abstraction has 2303 states and 2977 transitions. [2022-07-20 00:40:25,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-20 00:40:25,267 INFO L276 IsEmpty]: Start isEmpty. Operand 2303 states and 2977 transitions. [2022-07-20 00:40:25,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-07-20 00:40:25,268 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:40:25,269 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:40:25,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-20 00:40:25,269 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:40:25,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:40:25,269 INFO L85 PathProgramCache]: Analyzing trace with hash -756202940, now seen corresponding path program 1 times [2022-07-20 00:40:25,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:40:25,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577482153] [2022-07-20 00:40:25,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:40:25,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:40:25,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:25,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:40:25,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:25,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:25,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:25,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:25,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:25,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:40:25,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:25,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:25,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:25,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:25,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:25,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:40:25,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:25,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:25,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:25,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:25,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:25,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 00:40:25,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:25,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:25,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:25,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:25,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:25,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 00:40:25,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:25,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:25,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:25,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:25,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:25,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 00:40:25,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:25,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:25,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:25,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:25,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:25,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 00:40:25,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:25,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-20 00:40:25,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:25,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-20 00:40:25,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:25,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-20 00:40:25,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:25,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-20 00:40:25,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:25,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-20 00:40:25,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:25,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-20 00:40:25,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:25,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-20 00:40:25,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:25,511 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2022-07-20 00:40:25,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:40:25,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577482153] [2022-07-20 00:40:25,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577482153] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:40:25,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:40:25,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 00:40:25,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953044741] [2022-07-20 00:40:25,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:40:25,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 00:40:25,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:40:25,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 00:40:25,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-20 00:40:25,514 INFO L87 Difference]: Start difference. First operand 2303 states and 2977 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-20 00:40:26,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:40:26,524 INFO L93 Difference]: Finished difference Result 6465 states and 8493 transitions. [2022-07-20 00:40:26,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 00:40:26,525 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 176 [2022-07-20 00:40:26,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:40:26,540 INFO L225 Difference]: With dead ends: 6465 [2022-07-20 00:40:26,541 INFO L226 Difference]: Without dead ends: 4204 [2022-07-20 00:40:26,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-20 00:40:26,549 INFO L413 NwaCegarLoop]: 817 mSDtfsCounter, 1059 mSDsluCounter, 991 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 434 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1107 SdHoareTripleChecker+Valid, 1808 SdHoareTripleChecker+Invalid, 1119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 434 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-20 00:40:26,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1107 Valid, 1808 Invalid, 1119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [434 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-20 00:40:26,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4204 states. [2022-07-20 00:40:26,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4204 to 4004. [2022-07-20 00:40:26,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4004 states, 3007 states have (on average 1.3072830063185898) internal successors, (3931), 3074 states have internal predecessors, (3931), 643 states have call successors, (643), 355 states have call predecessors, (643), 353 states have return successors, (715), 614 states have call predecessors, (715), 635 states have call successors, (715) [2022-07-20 00:40:26,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4004 states to 4004 states and 5289 transitions. [2022-07-20 00:40:26,713 INFO L78 Accepts]: Start accepts. Automaton has 4004 states and 5289 transitions. Word has length 176 [2022-07-20 00:40:26,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:40:26,714 INFO L495 AbstractCegarLoop]: Abstraction has 4004 states and 5289 transitions. [2022-07-20 00:40:26,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-20 00:40:26,714 INFO L276 IsEmpty]: Start isEmpty. Operand 4004 states and 5289 transitions. [2022-07-20 00:40:26,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-07-20 00:40:26,717 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:40:26,717 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:40:26,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-20 00:40:26,717 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:40:26,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:40:26,718 INFO L85 PathProgramCache]: Analyzing trace with hash -117529203, now seen corresponding path program 1 times [2022-07-20 00:40:26,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:40:26,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781584155] [2022-07-20 00:40:26,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:40:26,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:40:26,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:40:26,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:26,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:26,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:40:26,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:26,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:26,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:40:26,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:26,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:26,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 00:40:26,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:26,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:26,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 00:40:26,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:26,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:26,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 00:40:26,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:26,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:26,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 00:40:26,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-20 00:40:26,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-20 00:40:26,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-20 00:40:26,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-20 00:40:26,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-20 00:40:26,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-20 00:40:26,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-20 00:40:26,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-20 00:40:26,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:26,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:26,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-07-20 00:40:26,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-07-20 00:40:26,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-20 00:40:26,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-07-20 00:40:26,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:40:26,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:26,953 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 434 trivial. 0 not checked. [2022-07-20 00:40:26,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:40:26,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781584155] [2022-07-20 00:40:26,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781584155] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:40:26,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:40:26,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-20 00:40:26,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637023847] [2022-07-20 00:40:26,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:40:26,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-20 00:40:26,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:40:26,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-20 00:40:26,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 00:40:26,955 INFO L87 Difference]: Start difference. First operand 4004 states and 5289 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-07-20 00:40:28,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:40:28,394 INFO L93 Difference]: Finished difference Result 9780 states and 12919 transitions. [2022-07-20 00:40:28,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-20 00:40:28,395 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 230 [2022-07-20 00:40:28,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:40:28,413 INFO L225 Difference]: With dead ends: 9780 [2022-07-20 00:40:28,413 INFO L226 Difference]: Without dead ends: 5826 [2022-07-20 00:40:28,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-07-20 00:40:28,421 INFO L413 NwaCegarLoop]: 1056 mSDtfsCounter, 1185 mSDsluCounter, 2078 mSDsCounter, 0 mSdLazyCounter, 1388 mSolverCounterSat, 522 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1247 SdHoareTripleChecker+Valid, 3134 SdHoareTripleChecker+Invalid, 1910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 522 IncrementalHoareTripleChecker+Valid, 1388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-20 00:40:28,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1247 Valid, 3134 Invalid, 1910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [522 Valid, 1388 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-20 00:40:28,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5826 states. [2022-07-20 00:40:28,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5826 to 5550. [2022-07-20 00:40:28,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5550 states, 4213 states have (on average 1.3123664846902445) internal successors, (5529), 4292 states have internal predecessors, (5529), 847 states have call successors, (847), 489 states have call predecessors, (847), 489 states have return successors, (953), 818 states have call predecessors, (953), 839 states have call successors, (953) [2022-07-20 00:40:28,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5550 states to 5550 states and 7329 transitions. [2022-07-20 00:40:28,606 INFO L78 Accepts]: Start accepts. Automaton has 5550 states and 7329 transitions. Word has length 230 [2022-07-20 00:40:28,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:40:28,606 INFO L495 AbstractCegarLoop]: Abstraction has 5550 states and 7329 transitions. [2022-07-20 00:40:28,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-07-20 00:40:28,607 INFO L276 IsEmpty]: Start isEmpty. Operand 5550 states and 7329 transitions. [2022-07-20 00:40:28,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-07-20 00:40:28,611 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:40:28,612 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:40:28,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-20 00:40:28,612 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:40:28,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:40:28,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1836153145, now seen corresponding path program 1 times [2022-07-20 00:40:28,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:40:28,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926706726] [2022-07-20 00:40:28,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:40:28,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:40:28,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:28,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:40:28,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:28,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:28,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:28,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:28,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:28,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:40:28,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:28,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:28,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:28,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:28,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:28,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:40:28,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:28,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:28,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:28,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:28,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:28,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 00:40:28,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:28,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:28,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:28,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:28,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:28,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 00:40:28,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:28,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:28,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:28,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:28,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:28,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 00:40:28,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:28,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:28,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:28,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:28,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:28,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 00:40:28,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:28,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-20 00:40:28,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:28,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-20 00:40:28,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:28,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-20 00:40:28,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:28,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-20 00:40:28,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:28,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-20 00:40:28,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:28,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-20 00:40:28,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:28,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-20 00:40:28,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:28,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-20 00:40:28,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:28,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:28,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:28,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:28,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:28,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-20 00:40:28,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:28,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:28,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:28,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-20 00:40:28,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:28,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-07-20 00:40:28,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:28,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-07-20 00:40:28,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:28,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-07-20 00:40:28,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:28,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-20 00:40:28,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:28,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-07-20 00:40:28,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:28,862 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2022-07-20 00:40:28,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:40:28,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926706726] [2022-07-20 00:40:28,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926706726] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:40:28,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:40:28,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-20 00:40:28,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82413256] [2022-07-20 00:40:28,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:40:28,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-20 00:40:28,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:40:28,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-20 00:40:28,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-07-20 00:40:28,864 INFO L87 Difference]: Start difference. First operand 5550 states and 7329 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-20 00:40:29,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:40:29,613 INFO L93 Difference]: Finished difference Result 11354 states and 15015 transitions. [2022-07-20 00:40:29,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 00:40:29,614 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 257 [2022-07-20 00:40:29,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:40:29,631 INFO L225 Difference]: With dead ends: 11354 [2022-07-20 00:40:29,632 INFO L226 Difference]: Without dead ends: 5854 [2022-07-20 00:40:29,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-07-20 00:40:29,641 INFO L413 NwaCegarLoop]: 640 mSDtfsCounter, 646 mSDsluCounter, 959 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 509 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 656 SdHoareTripleChecker+Valid, 1599 SdHoareTripleChecker+Invalid, 1111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 509 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-20 00:40:29,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [656 Valid, 1599 Invalid, 1111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [509 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-20 00:40:29,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5854 states. [2022-07-20 00:40:29,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5854 to 5550. [2022-07-20 00:40:29,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5550 states, 4213 states have (on average 1.3009731782577736) internal successors, (5481), 4292 states have internal predecessors, (5481), 847 states have call successors, (847), 489 states have call predecessors, (847), 489 states have return successors, (953), 818 states have call predecessors, (953), 839 states have call successors, (953) [2022-07-20 00:40:29,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5550 states to 5550 states and 7281 transitions. [2022-07-20 00:40:29,849 INFO L78 Accepts]: Start accepts. Automaton has 5550 states and 7281 transitions. Word has length 257 [2022-07-20 00:40:29,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:40:29,850 INFO L495 AbstractCegarLoop]: Abstraction has 5550 states and 7281 transitions. [2022-07-20 00:40:29,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-20 00:40:29,850 INFO L276 IsEmpty]: Start isEmpty. Operand 5550 states and 7281 transitions. [2022-07-20 00:40:29,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2022-07-20 00:40:29,853 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:40:29,853 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:40:29,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-20 00:40:29,853 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:40:29,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:40:29,854 INFO L85 PathProgramCache]: Analyzing trace with hash 771181833, now seen corresponding path program 1 times [2022-07-20 00:40:29,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:40:29,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863394512] [2022-07-20 00:40:29,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:40:29,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:40:29,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:29,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:40:29,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:29,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:29,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:29,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:29,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:29,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:40:29,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:29,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:29,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:29,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:29,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:29,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:40:29,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:29,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:29,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:29,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:29,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:29,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 00:40:29,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:29,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:29,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:29,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:29,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:29,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 00:40:29,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:29,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:29,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:29,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:29,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:29,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 00:40:29,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:29,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:29,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:29,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:29,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:29,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 00:40:29,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:29,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-20 00:40:29,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:29,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-20 00:40:29,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:30,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-20 00:40:30,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:30,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-20 00:40:30,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:30,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-20 00:40:30,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:30,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-20 00:40:30,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:30,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-20 00:40:30,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:30,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-20 00:40:30,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:30,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:30,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:30,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:30,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:30,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-20 00:40:30,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:30,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:30,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:30,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-20 00:40:30,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:30,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-20 00:40:30,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:30,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-07-20 00:40:30,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:30,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-07-20 00:40:30,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:30,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-07-20 00:40:30,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:30,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:40:30,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:30,067 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2022-07-20 00:40:30,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:40:30,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863394512] [2022-07-20 00:40:30,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863394512] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:40:30,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:40:30,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-20 00:40:30,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158975452] [2022-07-20 00:40:30,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:40:30,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-20 00:40:30,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:40:30,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-20 00:40:30,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-07-20 00:40:30,085 INFO L87 Difference]: Start difference. First operand 5550 states and 7281 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (28), 7 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-20 00:40:31,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:40:31,918 INFO L93 Difference]: Finished difference Result 13716 states and 17977 transitions. [2022-07-20 00:40:31,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-20 00:40:31,918 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (28), 7 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 258 [2022-07-20 00:40:31,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:40:31,940 INFO L225 Difference]: With dead ends: 13716 [2022-07-20 00:40:31,940 INFO L226 Difference]: Without dead ends: 8216 [2022-07-20 00:40:31,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2022-07-20 00:40:31,951 INFO L413 NwaCegarLoop]: 1187 mSDtfsCounter, 1497 mSDsluCounter, 2348 mSDsCounter, 0 mSdLazyCounter, 1969 mSolverCounterSat, 908 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1530 SdHoareTripleChecker+Valid, 3535 SdHoareTripleChecker+Invalid, 2877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 908 IncrementalHoareTripleChecker+Valid, 1969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-20 00:40:31,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1530 Valid, 3535 Invalid, 2877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [908 Valid, 1969 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-20 00:40:31,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8216 states. [2022-07-20 00:40:32,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8216 to 5566. [2022-07-20 00:40:32,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5566 states, 4229 states have (on average 1.2998344762355167) internal successors, (5497), 4308 states have internal predecessors, (5497), 847 states have call successors, (847), 489 states have call predecessors, (847), 489 states have return successors, (953), 818 states have call predecessors, (953), 839 states have call successors, (953) [2022-07-20 00:40:32,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5566 states to 5566 states and 7297 transitions. [2022-07-20 00:40:32,179 INFO L78 Accepts]: Start accepts. Automaton has 5566 states and 7297 transitions. Word has length 258 [2022-07-20 00:40:32,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:40:32,179 INFO L495 AbstractCegarLoop]: Abstraction has 5566 states and 7297 transitions. [2022-07-20 00:40:32,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (28), 7 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-20 00:40:32,180 INFO L276 IsEmpty]: Start isEmpty. Operand 5566 states and 7297 transitions. [2022-07-20 00:40:32,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-07-20 00:40:32,182 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:40:32,182 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:40:32,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-20 00:40:32,182 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:40:32,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:40:32,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1081606444, now seen corresponding path program 1 times [2022-07-20 00:40:32,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:40:32,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741490683] [2022-07-20 00:40:32,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:40:32,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:40:32,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:32,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:40:32,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:32,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:32,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:32,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:32,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:32,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:40:32,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:32,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:32,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:32,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:32,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:32,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:40:32,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:32,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:32,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:32,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:32,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:32,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 00:40:32,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:32,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:32,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:32,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:32,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:32,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 00:40:32,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:32,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:32,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:32,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:32,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:32,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 00:40:32,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:32,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:32,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:32,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:32,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:32,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 00:40:32,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:32,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-20 00:40:32,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:32,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-20 00:40:32,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:32,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-20 00:40:32,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:32,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-20 00:40:32,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:32,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-20 00:40:32,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:32,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-20 00:40:32,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:32,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-20 00:40:32,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:32,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-20 00:40:32,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:32,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:32,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:32,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:32,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:32,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-20 00:40:32,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:32,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:32,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:32,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-20 00:40:32,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:32,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-07-20 00:40:32,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:32,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-20 00:40:32,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:32,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-07-20 00:40:32,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:32,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-07-20 00:40:32,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:32,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-20 00:40:32,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:32,427 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2022-07-20 00:40:32,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:40:32,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741490683] [2022-07-20 00:40:32,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741490683] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:40:32,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:40:32,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-20 00:40:32,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760655258] [2022-07-20 00:40:32,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:40:32,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-20 00:40:32,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:40:32,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-20 00:40:32,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-07-20 00:40:32,429 INFO L87 Difference]: Start difference. First operand 5566 states and 7297 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (27), 6 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-20 00:40:34,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:40:34,009 INFO L93 Difference]: Finished difference Result 10769 states and 15547 transitions. [2022-07-20 00:40:34,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-20 00:40:34,009 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (27), 6 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 259 [2022-07-20 00:40:34,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:40:34,031 INFO L225 Difference]: With dead ends: 10769 [2022-07-20 00:40:34,032 INFO L226 Difference]: Without dead ends: 10747 [2022-07-20 00:40:34,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-07-20 00:40:34,035 INFO L413 NwaCegarLoop]: 1032 mSDtfsCounter, 1736 mSDsluCounter, 2575 mSDsCounter, 0 mSdLazyCounter, 1559 mSolverCounterSat, 608 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1746 SdHoareTripleChecker+Valid, 3607 SdHoareTripleChecker+Invalid, 2167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 608 IncrementalHoareTripleChecker+Valid, 1559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-20 00:40:34,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1746 Valid, 3607 Invalid, 2167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [608 Valid, 1559 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-20 00:40:34,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10747 states. [2022-07-20 00:40:34,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10747 to 5557. [2022-07-20 00:40:34,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5557 states, 4225 states have (on average 1.2991715976331362) internal successors, (5489), 4301 states have internal predecessors, (5489), 843 states have call successors, (843), 488 states have call predecessors, (843), 488 states have return successors, (950), 817 states have call predecessors, (950), 836 states have call successors, (950) [2022-07-20 00:40:34,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5557 states to 5557 states and 7282 transitions. [2022-07-20 00:40:34,352 INFO L78 Accepts]: Start accepts. Automaton has 5557 states and 7282 transitions. Word has length 259 [2022-07-20 00:40:34,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:40:34,352 INFO L495 AbstractCegarLoop]: Abstraction has 5557 states and 7282 transitions. [2022-07-20 00:40:34,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (27), 6 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-20 00:40:34,353 INFO L276 IsEmpty]: Start isEmpty. Operand 5557 states and 7282 transitions. [2022-07-20 00:40:34,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-07-20 00:40:34,354 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:40:34,354 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:40:34,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-20 00:40:34,355 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:40:34,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:40:34,355 INFO L85 PathProgramCache]: Analyzing trace with hash 198257234, now seen corresponding path program 1 times [2022-07-20 00:40:34,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:40:34,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405588371] [2022-07-20 00:40:34,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:40:34,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:40:34,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:34,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:40:34,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:34,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:34,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:34,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:34,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:34,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:40:34,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:34,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:34,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:34,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:34,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:34,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:40:34,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:34,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:34,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:34,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:34,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:34,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 00:40:34,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:34,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:34,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:34,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:34,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:34,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 00:40:34,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:34,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:34,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:34,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:34,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:34,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 00:40:34,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:34,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:34,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:34,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:34,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:34,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 00:40:34,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:34,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-20 00:40:34,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:34,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-20 00:40:34,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:34,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-20 00:40:34,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:34,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-20 00:40:34,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:34,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-20 00:40:34,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:34,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-20 00:40:34,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:34,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-20 00:40:34,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:34,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-20 00:40:34,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:34,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:34,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:34,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:34,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:34,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-20 00:40:34,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:34,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:34,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:34,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-20 00:40:34,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:34,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-07-20 00:40:34,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:34,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-20 00:40:34,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:34,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-07-20 00:40:34,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:34,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-07-20 00:40:34,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:34,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-20 00:40:34,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:34,568 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2022-07-20 00:40:34,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:40:34,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405588371] [2022-07-20 00:40:34,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405588371] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:40:34,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:40:34,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-20 00:40:34,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351682700] [2022-07-20 00:40:34,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:40:34,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-20 00:40:34,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:40:34,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-20 00:40:34,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-07-20 00:40:34,570 INFO L87 Difference]: Start difference. First operand 5557 states and 7282 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (27), 7 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-20 00:40:35,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:40:35,934 INFO L93 Difference]: Finished difference Result 11354 states and 14850 transitions. [2022-07-20 00:40:35,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-20 00:40:35,940 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (27), 7 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 259 [2022-07-20 00:40:35,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:40:35,956 INFO L225 Difference]: With dead ends: 11354 [2022-07-20 00:40:35,956 INFO L226 Difference]: Without dead ends: 5847 [2022-07-20 00:40:35,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-07-20 00:40:35,967 INFO L413 NwaCegarLoop]: 955 mSDtfsCounter, 930 mSDsluCounter, 2105 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 397 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 3060 SdHoareTripleChecker+Invalid, 1654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 397 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-20 00:40:35,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [978 Valid, 3060 Invalid, 1654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [397 Valid, 1257 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-20 00:40:35,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5847 states. [2022-07-20 00:40:36,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5847 to 5430. [2022-07-20 00:40:36,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5430 states, 4147 states have (on average 1.2980467808054015) internal successors, (5383), 4215 states have internal predecessors, (5383), 802 states have call successors, (802), 462 states have call predecessors, (802), 480 states have return successors, (847), 802 states have call predecessors, (847), 783 states have call successors, (847) [2022-07-20 00:40:36,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5430 states to 5430 states and 7032 transitions. [2022-07-20 00:40:36,175 INFO L78 Accepts]: Start accepts. Automaton has 5430 states and 7032 transitions. Word has length 259 [2022-07-20 00:40:36,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:40:36,175 INFO L495 AbstractCegarLoop]: Abstraction has 5430 states and 7032 transitions. [2022-07-20 00:40:36,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (27), 7 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-20 00:40:36,176 INFO L276 IsEmpty]: Start isEmpty. Operand 5430 states and 7032 transitions. [2022-07-20 00:40:36,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2022-07-20 00:40:36,178 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:40:36,178 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:40:36,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-20 00:40:36,178 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:40:36,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:40:36,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1017508335, now seen corresponding path program 1 times [2022-07-20 00:40:36,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:40:36,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591407499] [2022-07-20 00:40:36,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:40:36,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:40:36,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:40:36,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:36,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:36,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:40:36,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:36,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:36,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:40:36,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:36,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:36,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 00:40:36,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:36,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:36,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 00:40:36,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:36,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:36,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 00:40:36,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:36,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:36,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 00:40:36,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-20 00:40:36,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-20 00:40:36,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-20 00:40:36,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-20 00:40:36,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-20 00:40:36,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-20 00:40:36,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-20 00:40:36,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-20 00:40:36,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:36,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:36,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-20 00:40:36,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:36,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-20 00:40:36,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-07-20 00:40:36,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-20 00:40:36,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-07-20 00:40:36,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-07-20 00:40:36,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-20 00:40:36,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-07-20 00:40:36,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-07-20 00:40:36,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-07-20 00:40:36,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-07-20 00:40:36,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:36,422 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 447 trivial. 0 not checked. [2022-07-20 00:40:36,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:40:36,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591407499] [2022-07-20 00:40:36,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591407499] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:40:36,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:40:36,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-20 00:40:36,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760265612] [2022-07-20 00:40:36,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:40:36,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-20 00:40:36,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:40:36,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-20 00:40:36,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-07-20 00:40:36,425 INFO L87 Difference]: Start difference. First operand 5430 states and 7032 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (35), 6 states have call predecessors, (35), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-20 00:40:38,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:40:38,012 INFO L93 Difference]: Finished difference Result 15917 states and 21972 transitions. [2022-07-20 00:40:38,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-20 00:40:38,012 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (35), 6 states have call predecessors, (35), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 292 [2022-07-20 00:40:38,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:40:38,037 INFO L225 Difference]: With dead ends: 15917 [2022-07-20 00:40:38,037 INFO L226 Difference]: Without dead ends: 10537 [2022-07-20 00:40:38,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2022-07-20 00:40:38,049 INFO L413 NwaCegarLoop]: 804 mSDtfsCounter, 1917 mSDsluCounter, 1932 mSDsCounter, 0 mSdLazyCounter, 1444 mSolverCounterSat, 1003 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1928 SdHoareTripleChecker+Valid, 2736 SdHoareTripleChecker+Invalid, 2447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1003 IncrementalHoareTripleChecker+Valid, 1444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-20 00:40:38,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1928 Valid, 2736 Invalid, 2447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1003 Valid, 1444 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-20 00:40:38,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10537 states. [2022-07-20 00:40:38,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10537 to 5416. [2022-07-20 00:40:38,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5416 states, 4141 states have (on average 1.297512678097078) internal successors, (5373), 4205 states have internal predecessors, (5373), 798 states have call successors, (798), 458 states have call predecessors, (798), 476 states have return successors, (843), 798 states have call predecessors, (843), 779 states have call successors, (843) [2022-07-20 00:40:38,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5416 states to 5416 states and 7014 transitions. [2022-07-20 00:40:38,332 INFO L78 Accepts]: Start accepts. Automaton has 5416 states and 7014 transitions. Word has length 292 [2022-07-20 00:40:38,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:40:38,333 INFO L495 AbstractCegarLoop]: Abstraction has 5416 states and 7014 transitions. [2022-07-20 00:40:38,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (35), 6 states have call predecessors, (35), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-20 00:40:38,333 INFO L276 IsEmpty]: Start isEmpty. Operand 5416 states and 7014 transitions. [2022-07-20 00:40:38,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2022-07-20 00:40:38,338 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:40:38,338 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:40:38,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-20 00:40:38,339 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:40:38,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:40:38,339 INFO L85 PathProgramCache]: Analyzing trace with hash -285423127, now seen corresponding path program 1 times [2022-07-20 00:40:38,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:40:38,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470584190] [2022-07-20 00:40:38,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:40:38,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:40:38,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:40:38,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:38,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:40:38,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:38,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:38,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:40:38,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:38,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:38,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 00:40:38,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:38,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:38,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 00:40:38,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:38,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:38,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 00:40:38,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:38,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:38,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 00:40:38,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-20 00:40:38,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-20 00:40:38,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-20 00:40:38,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-20 00:40:38,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-20 00:40:38,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-20 00:40:38,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-20 00:40:38,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-20 00:40:38,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:38,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:38,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-20 00:40:38,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:38,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-20 00:40:38,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-07-20 00:40:38,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-20 00:40:38,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-07-20 00:40:38,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-07-20 00:40:38,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-20 00:40:38,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-20 00:40:38,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-07-20 00:40:38,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-07-20 00:40:38,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-20 00:40:38,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:38,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:38,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:38,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-20 00:40:38,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:38,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:38,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2022-07-20 00:40:38,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-07-20 00:40:38,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:40:38,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:38,642 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 658 trivial. 0 not checked. [2022-07-20 00:40:38,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:40:38,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470584190] [2022-07-20 00:40:38,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470584190] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:40:38,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:40:38,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-20 00:40:38,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141451333] [2022-07-20 00:40:38,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:40:38,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-20 00:40:38,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:40:38,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-20 00:40:38,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-07-20 00:40:38,644 INFO L87 Difference]: Start difference. First operand 5416 states and 7014 transitions. Second operand has 12 states, 12 states have (on average 11.333333333333334) internal successors, (136), 5 states have internal predecessors, (136), 2 states have call successors, (37), 8 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) [2022-07-20 00:40:40,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:40:40,474 INFO L93 Difference]: Finished difference Result 5775 states and 7450 transitions. [2022-07-20 00:40:40,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-20 00:40:40,475 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.333333333333334) internal successors, (136), 5 states have internal predecessors, (136), 2 states have call successors, (37), 8 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) Word has length 347 [2022-07-20 00:40:40,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:40:40,487 INFO L225 Difference]: With dead ends: 5775 [2022-07-20 00:40:40,487 INFO L226 Difference]: Without dead ends: 5683 [2022-07-20 00:40:40,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=118, Invalid=302, Unknown=0, NotChecked=0, Total=420 [2022-07-20 00:40:40,489 INFO L413 NwaCegarLoop]: 635 mSDtfsCounter, 506 mSDsluCounter, 2801 mSDsCounter, 0 mSdLazyCounter, 2181 mSolverCounterSat, 397 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 3436 SdHoareTripleChecker+Invalid, 2578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 397 IncrementalHoareTripleChecker+Valid, 2181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-20 00:40:40,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 3436 Invalid, 2578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [397 Valid, 2181 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-20 00:40:40,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5683 states. [2022-07-20 00:40:40,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5683 to 5347. [2022-07-20 00:40:40,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5347 states, 4079 states have (on average 1.2914930129933808) internal successors, (5268), 4142 states have internal predecessors, (5268), 791 states have call successors, (791), 458 states have call predecessors, (791), 476 states have return successors, (837), 792 states have call predecessors, (837), 773 states have call successors, (837) [2022-07-20 00:40:40,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5347 states to 5347 states and 6896 transitions. [2022-07-20 00:40:40,702 INFO L78 Accepts]: Start accepts. Automaton has 5347 states and 6896 transitions. Word has length 347 [2022-07-20 00:40:40,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:40:40,703 INFO L495 AbstractCegarLoop]: Abstraction has 5347 states and 6896 transitions. [2022-07-20 00:40:40,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.333333333333334) internal successors, (136), 5 states have internal predecessors, (136), 2 states have call successors, (37), 8 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) [2022-07-20 00:40:40,703 INFO L276 IsEmpty]: Start isEmpty. Operand 5347 states and 6896 transitions. [2022-07-20 00:40:40,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2022-07-20 00:40:40,708 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:40:40,709 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:40:40,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-20 00:40:40,709 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:40:40,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:40:40,709 INFO L85 PathProgramCache]: Analyzing trace with hash -106995251, now seen corresponding path program 1 times [2022-07-20 00:40:40,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:40:40,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820560334] [2022-07-20 00:40:40,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:40:40,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:40:40,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:40,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:40:40,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:40,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:40,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:40,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:40,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:40,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:40:40,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:40,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:40,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:40,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:40,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:40,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:40:40,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:40,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:40,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:40,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:40,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:40,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 00:40:40,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:40,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:40,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:40,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:40,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:40,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 00:40:40,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:40,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:40,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:40,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:40,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:40,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 00:40:40,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:40,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:40,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:40,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:40,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:40,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 00:40:40,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:40,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-20 00:40:40,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:40,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-20 00:40:40,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:40,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-20 00:40:40,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:40,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-20 00:40:40,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:40,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-20 00:40:40,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:40,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-20 00:40:40,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:40,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-20 00:40:40,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:40,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-20 00:40:40,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:40,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:40,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:40,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:40,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:40,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-20 00:40:40,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:40,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:40,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:40,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-20 00:40:40,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:40,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-07-20 00:40:40,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:40,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-20 00:40:40,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:40,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-07-20 00:40:40,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:40,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-07-20 00:40:40,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:40,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-20 00:40:40,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:40,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-20 00:40:40,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:40,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-07-20 00:40:40,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:40,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-07-20 00:40:40,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:40,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-20 00:40:41,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:41,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:41,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:41,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:41,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:41,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:41,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:41,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-20 00:40:41,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:41,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:41,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:41,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:41,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:41,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2022-07-20 00:40:41,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:41,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-07-20 00:40:41,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:41,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:40:41,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:41,097 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 658 trivial. 0 not checked. [2022-07-20 00:40:41,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:40:41,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820560334] [2022-07-20 00:40:41,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820560334] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:40:41,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:40:41,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-20 00:40:41,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948744177] [2022-07-20 00:40:41,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:40:41,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-20 00:40:41,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:40:41,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-20 00:40:41,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-07-20 00:40:41,100 INFO L87 Difference]: Start difference. First operand 5347 states and 6896 transitions. Second operand has 12 states, 12 states have (on average 12.0) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (36), 8 states have call predecessors, (36), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) [2022-07-20 00:40:43,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:40:43,072 INFO L93 Difference]: Finished difference Result 10119 states and 14197 transitions. [2022-07-20 00:40:43,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-20 00:40:43,072 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 12.0) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (36), 8 states have call predecessors, (36), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) Word has length 354 [2022-07-20 00:40:43,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:40:43,090 INFO L225 Difference]: With dead ends: 10119 [2022-07-20 00:40:43,090 INFO L226 Difference]: Without dead ends: 9649 [2022-07-20 00:40:43,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2022-07-20 00:40:43,092 INFO L413 NwaCegarLoop]: 1014 mSDtfsCounter, 1384 mSDsluCounter, 3876 mSDsCounter, 0 mSdLazyCounter, 2425 mSolverCounterSat, 603 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1442 SdHoareTripleChecker+Valid, 4890 SdHoareTripleChecker+Invalid, 3028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 603 IncrementalHoareTripleChecker+Valid, 2425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-20 00:40:43,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1442 Valid, 4890 Invalid, 3028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [603 Valid, 2425 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-20 00:40:43,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9649 states. [2022-07-20 00:40:43,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9649 to 5029. [2022-07-20 00:40:43,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5029 states, 3853 states have (on average 1.291461199065663) internal successors, (4976), 3904 states have internal predecessors, (4976), 721 states have call successors, (721), 435 states have call predecessors, (721), 454 states have return successors, (769), 729 states have call predecessors, (769), 705 states have call successors, (769) [2022-07-20 00:40:43,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5029 states to 5029 states and 6466 transitions. [2022-07-20 00:40:43,354 INFO L78 Accepts]: Start accepts. Automaton has 5029 states and 6466 transitions. Word has length 354 [2022-07-20 00:40:43,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:40:43,355 INFO L495 AbstractCegarLoop]: Abstraction has 5029 states and 6466 transitions. [2022-07-20 00:40:43,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.0) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (36), 8 states have call predecessors, (36), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) [2022-07-20 00:40:43,355 INFO L276 IsEmpty]: Start isEmpty. Operand 5029 states and 6466 transitions. [2022-07-20 00:40:43,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2022-07-20 00:40:43,361 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:40:43,361 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:40:43,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-20 00:40:43,362 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:40:43,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:40:43,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1167972668, now seen corresponding path program 1 times [2022-07-20 00:40:43,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:40:43,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331554373] [2022-07-20 00:40:43,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:40:43,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:40:43,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:40:43,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:43,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:43,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:40:43,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:43,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:43,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:40:43,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:43,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:43,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 00:40:43,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:43,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:43,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 00:40:43,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:43,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:43,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 00:40:43,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:43,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:43,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 00:40:43,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-20 00:40:43,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-20 00:40:43,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-20 00:40:43,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-20 00:40:43,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-20 00:40:43,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-20 00:40:43,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-20 00:40:43,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-20 00:40:43,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:43,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:43,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-20 00:40:43,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:43,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-20 00:40:43,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-07-20 00:40:43,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-20 00:40:43,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-07-20 00:40:43,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-07-20 00:40:43,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-20 00:40:43,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-20 00:40:43,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-07-20 00:40:43,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-07-20 00:40:43,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-20 00:40:43,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:43,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:43,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:43,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-20 00:40:43,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:43,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:43,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-07-20 00:40:43,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:43,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:43,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:40:43,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-07-20 00:40:43,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:43,688 INFO L134 CoverageAnalysis]: Checked inductivity of 667 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 661 trivial. 0 not checked. [2022-07-20 00:40:43,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:40:43,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331554373] [2022-07-20 00:40:43,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331554373] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:40:43,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:40:43,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-20 00:40:43,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298101396] [2022-07-20 00:40:43,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:40:43,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-20 00:40:43,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:40:43,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-20 00:40:43,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-07-20 00:40:43,691 INFO L87 Difference]: Start difference. First operand 5029 states and 6466 transitions. Second operand has 12 states, 12 states have (on average 11.583333333333334) internal successors, (139), 5 states have internal predecessors, (139), 2 states have call successors, (39), 8 states have call predecessors, (39), 3 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) [2022-07-20 00:40:45,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:40:45,180 INFO L93 Difference]: Finished difference Result 10352 states and 13349 transitions. [2022-07-20 00:40:45,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-20 00:40:45,181 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.583333333333334) internal successors, (139), 5 states have internal predecessors, (139), 2 states have call successors, (39), 8 states have call predecessors, (39), 3 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) Word has length 356 [2022-07-20 00:40:45,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:40:45,192 INFO L225 Difference]: With dead ends: 10352 [2022-07-20 00:40:45,192 INFO L226 Difference]: Without dead ends: 5373 [2022-07-20 00:40:45,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2022-07-20 00:40:45,200 INFO L413 NwaCegarLoop]: 640 mSDtfsCounter, 747 mSDsluCounter, 2552 mSDsCounter, 0 mSdLazyCounter, 2010 mSolverCounterSat, 558 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 758 SdHoareTripleChecker+Valid, 3192 SdHoareTripleChecker+Invalid, 2568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 558 IncrementalHoareTripleChecker+Valid, 2010 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-20 00:40:45,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [758 Valid, 3192 Invalid, 2568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [558 Valid, 2010 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-20 00:40:45,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5373 states. [2022-07-20 00:40:45,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5373 to 5065. [2022-07-20 00:40:45,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5065 states, 3889 states have (on average 1.2933916173823605) internal successors, (5030), 3946 states have internal predecessors, (5030), 727 states have call successors, (727), 435 states have call predecessors, (727), 448 states have return successors, (763), 723 states have call predecessors, (763), 711 states have call successors, (763) [2022-07-20 00:40:45,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5065 states to 5065 states and 6520 transitions. [2022-07-20 00:40:45,412 INFO L78 Accepts]: Start accepts. Automaton has 5065 states and 6520 transitions. Word has length 356 [2022-07-20 00:40:45,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:40:45,412 INFO L495 AbstractCegarLoop]: Abstraction has 5065 states and 6520 transitions. [2022-07-20 00:40:45,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.583333333333334) internal successors, (139), 5 states have internal predecessors, (139), 2 states have call successors, (39), 8 states have call predecessors, (39), 3 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) [2022-07-20 00:40:45,412 INFO L276 IsEmpty]: Start isEmpty. Operand 5065 states and 6520 transitions. [2022-07-20 00:40:45,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2022-07-20 00:40:45,420 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:40:45,420 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:40:45,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-20 00:40:45,421 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:40:45,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:40:45,421 INFO L85 PathProgramCache]: Analyzing trace with hash -622555303, now seen corresponding path program 1 times [2022-07-20 00:40:45,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:40:45,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277560088] [2022-07-20 00:40:45,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:40:45,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:40:45,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:40:45,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:45,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:45,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:40:45,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:45,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:45,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:40:45,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:45,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:45,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 00:40:45,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:45,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:45,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 00:40:45,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:45,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:45,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 00:40:45,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:45,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:45,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 00:40:45,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-20 00:40:45,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-20 00:40:45,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-20 00:40:45,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-20 00:40:45,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-20 00:40:45,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-20 00:40:45,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-20 00:40:45,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-20 00:40:45,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:45,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:45,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-20 00:40:45,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:45,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-20 00:40:45,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-07-20 00:40:45,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-20 00:40:45,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-07-20 00:40:45,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-07-20 00:40:45,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-20 00:40:45,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-20 00:40:45,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-07-20 00:40:45,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-07-20 00:40:45,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-20 00:40:45,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:45,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:45,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:45,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-20 00:40:45,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:40:45,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:40:45,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2022-07-20 00:40:45,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-07-20 00:40:45,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:40:45,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-07-20 00:40:45,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:40:45,751 INFO L134 CoverageAnalysis]: Checked inductivity of 674 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 661 trivial. 0 not checked. [2022-07-20 00:40:45,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:40:45,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277560088] [2022-07-20 00:40:45,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277560088] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:40:45,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:40:45,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-20 00:40:45,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082682771] [2022-07-20 00:40:45,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:40:45,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-20 00:40:45,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:40:45,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-20 00:40:45,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-07-20 00:40:45,753 INFO L87 Difference]: Start difference. First operand 5065 states and 6520 transitions. Second operand has 12 states, 12 states have (on average 12.583333333333334) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (38), 8 states have call predecessors, (38), 2 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) [2022-07-20 00:40:47,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:40:47,335 INFO L93 Difference]: Finished difference Result 7753 states and 10558 transitions. [2022-07-20 00:40:47,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-20 00:40:47,335 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 12.583333333333334) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (38), 8 states have call predecessors, (38), 2 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) Word has length 366 [2022-07-20 00:40:47,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:40:47,337 INFO L225 Difference]: With dead ends: 7753 [2022-07-20 00:40:47,337 INFO L226 Difference]: Without dead ends: 0 [2022-07-20 00:40:47,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2022-07-20 00:40:47,350 INFO L413 NwaCegarLoop]: 1249 mSDtfsCounter, 1472 mSDsluCounter, 4937 mSDsCounter, 0 mSdLazyCounter, 2337 mSolverCounterSat, 830 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1531 SdHoareTripleChecker+Valid, 6186 SdHoareTripleChecker+Invalid, 3167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 830 IncrementalHoareTripleChecker+Valid, 2337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-20 00:40:47,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1531 Valid, 6186 Invalid, 3167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [830 Valid, 2337 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-20 00:40:47,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-20 00:40:47,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-20 00:40:47,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 00:40:47,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-20 00:40:47,353 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 366 [2022-07-20 00:40:47,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:40:47,353 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-20 00:40:47,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.583333333333334) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (38), 8 states have call predecessors, (38), 2 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) [2022-07-20 00:40:47,353 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-20 00:40:47,353 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-20 00:40:47,355 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-20 00:40:47,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-20 00:40:47,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-20 00:41:19,320 WARN L233 SmtUtils]: Spent 31.17s on a formula simplification that was a NOOP. DAG size: 99 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-07-20 00:42:18,235 WARN L233 SmtUtils]: Spent 58.91s on a formula simplification that was a NOOP. DAG size: 106 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-07-20 00:43:21,336 WARN L233 SmtUtils]: Spent 1.05m on a formula simplification that was a NOOP. DAG size: 108 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-07-20 00:44:25,310 WARN L233 SmtUtils]: Spent 1.07m on a formula simplification that was a NOOP. DAG size: 108 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or)