./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 35987657 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-?-3598765 [2022-07-21 12:11:16,032 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 12:11:16,034 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 12:11:16,069 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 12:11:16,069 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 12:11:16,071 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 12:11:16,074 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 12:11:16,076 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 12:11:16,089 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 12:11:16,093 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 12:11:16,094 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 12:11:16,096 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 12:11:16,096 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 12:11:16,097 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 12:11:16,098 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 12:11:16,103 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 12:11:16,104 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 12:11:16,105 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 12:11:16,106 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 12:11:16,111 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 12:11:16,112 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 12:11:16,113 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 12:11:16,114 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 12:11:16,114 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 12:11:16,116 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 12:11:16,121 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 12:11:16,121 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 12:11:16,121 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 12:11:16,122 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 12:11:16,122 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 12:11:16,123 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 12:11:16,123 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 12:11:16,124 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 12:11:16,125 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 12:11:16,126 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 12:11:16,126 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 12:11:16,127 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 12:11:16,127 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 12:11:16,127 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 12:11:16,127 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 12:11:16,128 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 12:11:16,129 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 12:11:16,135 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 12:11:16,162 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 12:11:16,163 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 12:11:16,163 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 12:11:16,163 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 12:11:16,164 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 12:11:16,164 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 12:11:16,165 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 12:11:16,165 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 12:11:16,165 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 12:11:16,166 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 12:11:16,166 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 12:11:16,166 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 12:11:16,166 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 12:11:16,166 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 12:11:16,167 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 12:11:16,167 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 12:11:16,167 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 12:11:16,167 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 12:11:16,167 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 12:11:16,168 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 12:11:16,168 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 12:11:16,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 12:11:16,168 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 12:11:16,168 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 12:11:16,168 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 12:11:16,168 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 12:11:16,169 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 12:11:16,169 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 12:11:16,169 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 12:11:16,169 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 12:11:16,169 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1b2a361b7351c4ac2fc0213f47206309b2fae43ca25ec3cefac8a1c8b001422 [2022-07-21 12:11:16,478 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 12:11:16,509 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 12:11:16,511 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 12:11:16,512 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 12:11:16,512 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 12:11:16,514 INFO L432 ainManager$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 [2022-07-21 12:11:16,584 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7346528c/04248c71b8f14786a09e6b663d2e7557/FLAG15da8c2ac [2022-07-21 12:11:17,057 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 12:11:17,057 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 [2022-07-21 12:11:17,092 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7346528c/04248c71b8f14786a09e6b663d2e7557/FLAG15da8c2ac [2022-07-21 12:11:17,319 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7346528c/04248c71b8f14786a09e6b663d2e7557 [2022-07-21 12:11:17,321 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 12:11:17,322 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 12:11:17,324 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 12:11:17,324 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 12:11:17,327 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 12:11:17,327 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:11:17" (1/1) ... [2022-07-21 12:11:17,328 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13552b57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:11:17, skipping insertion in model container [2022-07-21 12:11:17,328 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:11:17" (1/1) ... [2022-07-21 12:11:17,333 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 12:11:17,412 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 12:11:18,141 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] [2022-07-21 12:11:18,297 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 12:11:18,315 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 12:11:18,480 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] [2022-07-21 12:11:18,490 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 12:11:18,524 INFO L208 MainTranslator]: Completed translation [2022-07-21 12:11:18,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:11:18 WrapperNode [2022-07-21 12:11:18,524 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 12:11:18,525 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 12:11:18,525 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 12:11:18,526 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 12:11:18,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:11:18" (1/1) ... [2022-07-21 12:11:18,586 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:11:18" (1/1) ... [2022-07-21 12:11:18,661 INFO L137 Inliner]: procedures = 188, calls = 548, calls flagged for inlining = 71, calls inlined = 66, statements flattened = 1598 [2022-07-21 12:11:18,663 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 12:11:18,664 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 12:11:18,664 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 12:11:18,665 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 12:11:18,670 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:11:18" (1/1) ... [2022-07-21 12:11:18,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:11:18" (1/1) ... [2022-07-21 12:11:18,689 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:11:18" (1/1) ... [2022-07-21 12:11:18,690 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:11:18" (1/1) ... [2022-07-21 12:11:18,752 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:11:18" (1/1) ... [2022-07-21 12:11:18,758 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:11:18" (1/1) ... [2022-07-21 12:11:18,764 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:11:18" (1/1) ... [2022-07-21 12:11:18,774 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 12:11:18,775 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 12:11:18,775 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 12:11:18,775 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 12:11:18,776 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:11:18" (1/1) ... [2022-07-21 12:11:18,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 12:11:18,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 12:11:18,802 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) [2022-07-21 12:11:18,818 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 [2022-07-21 12:11:18,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_serio_raw_mutex [2022-07-21 12:11:18,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_serio_raw_mutex [2022-07-21 12:11:18,843 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-07-21 12:11:18,843 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-07-21 12:11:18,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 12:11:18,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 12:11:18,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 12:11:18,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-21 12:11:18,844 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-21 12:11:18,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 12:11:18,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 12:11:18,844 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-21 12:11:18,844 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-21 12:11:18,845 INFO L130 BoogieDeclarations]: Found specification of procedure kill_fasync [2022-07-21 12:11:18,845 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_fasync [2022-07-21 12:11:18,845 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-07-21 12:11:18,845 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-07-21 12:11:18,845 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-07-21 12:11:18,845 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-07-21 12:11:18,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 12:11:18,845 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-21 12:11:18,845 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-21 12:11:18,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-21 12:11:18,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-21 12:11:18,846 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-07-21 12:11:18,846 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-07-21 12:11:18,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 12:11:18,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 12:11:18,846 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_disconnect [2022-07-21 12:11:18,846 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_disconnect [2022-07-21 12:11:18,846 INFO L130 BoogieDeclarations]: Found specification of procedure serio_continue_rx [2022-07-21 12:11:18,847 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_continue_rx [2022-07-21 12:11:18,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-21 12:11:18,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-21 12:11:18,847 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-21 12:11:18,847 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-21 12:11:18,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 12:11:18,848 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_poll [2022-07-21 12:11:18,848 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_poll [2022-07-21 12:11:18,848 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-21 12:11:18,848 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-21 12:11:18,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-21 12:11:18,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-21 12:11:18,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 12:11:18,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-21 12:11:18,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-21 12:11:18,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 12:11:18,849 INFO L130 BoogieDeclarations]: Found specification of procedure serio_set_drvdata [2022-07-21 12:11:18,849 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_set_drvdata [2022-07-21 12:11:18,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 12:11:18,849 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-21 12:11:18,849 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-21 12:11:18,849 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 12:11:18,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 12:11:18,850 INFO L130 BoogieDeclarations]: Found specification of procedure misc_register [2022-07-21 12:11:18,850 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_register [2022-07-21 12:11:18,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 12:11:18,851 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-21 12:11:18,852 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-21 12:11:18,852 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-07-21 12:11:18,853 INFO L130 BoogieDeclarations]: Found specification of procedure serio_pause_rx [2022-07-21 12:11:18,853 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_pause_rx [2022-07-21 12:11:18,853 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2022-07-21 12:11:18,853 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2022-07-21 12:11:18,853 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2022-07-21 12:11:18,853 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2022-07-21 12:11:18,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 12:11:18,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 12:11:18,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_2 [2022-07-21 12:11:18,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_2 [2022-07-21 12:11:18,854 INFO L130 BoogieDeclarations]: Found specification of procedure serio_get_drvdata [2022-07-21 12:11:18,854 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_get_drvdata [2022-07-21 12:11:18,854 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-21 12:11:18,854 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-21 12:11:18,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_serio_raw_mutex [2022-07-21 12:11:18,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_serio_raw_mutex [2022-07-21 12:11:18,855 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-07-21 12:11:18,855 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-07-21 12:11:18,855 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-21 12:11:18,855 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-21 12:11:18,855 INFO L130 BoogieDeclarations]: Found specification of procedure serio_close [2022-07-21 12:11:18,855 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_close [2022-07-21 12:11:18,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_serio_raw_mutex [2022-07-21 12:11:18,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_serio_raw_mutex [2022-07-21 12:11:18,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 12:11:18,856 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_write [2022-07-21 12:11:18,856 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_write [2022-07-21 12:11:18,856 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_fasync [2022-07-21 12:11:18,856 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_fasync [2022-07-21 12:11:18,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 12:11:18,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 12:11:19,181 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 12:11:19,183 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 12:11:19,348 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 12:11:20,069 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 12:11:20,085 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 12:11:20,086 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 12:11:20,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:11:20 BoogieIcfgContainer [2022-07-21 12:11:20,089 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 12:11:20,090 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 12:11:20,091 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 12:11:20,093 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 12:11:20,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 12:11:17" (1/3) ... [2022-07-21 12:11:20,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@912fa81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:11:20, skipping insertion in model container [2022-07-21 12:11:20,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:11:18" (2/3) ... [2022-07-21 12:11:20,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@912fa81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:11:20, skipping insertion in model container [2022-07-21 12:11:20,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:11:20" (3/3) ... [2022-07-21 12:11:20,095 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i [2022-07-21 12:11:20,105 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 12:11:20,106 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 12:11:20,162 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 12:11:20,167 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@319ecae6, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4b36fde7 [2022-07-21 12:11:20,167 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 12:11:20,172 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) [2022-07-21 12:11:20,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-07-21 12:11:20,184 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:11:20,185 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] [2022-07-21 12:11:20,186 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:11:20,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:11:20,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1422664901, now seen corresponding path program 1 times [2022-07-21 12:11:20,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:11:20,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661607568] [2022-07-21 12:11:20,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:11:20,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:11:20,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:20,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:11:20,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:20,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:20,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:20,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:20,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:20,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 12:11:20,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:20,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:20,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:20,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:20,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:20,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 12:11:20,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:20,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:20,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:20,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:20,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:20,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 12:11:20,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:20,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:20,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:20,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:20,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:20,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 12:11:20,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:20,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:20,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:20,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:20,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:20,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 12:11:20,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:20,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:20,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:20,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:20,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:20,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 12:11:20,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:20,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-21 12:11:20,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:20,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-21 12:11:20,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:20,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 12:11:20,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:20,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 12:11:20,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:20,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 12:11:20,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:20,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-21 12:11:20,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:20,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-21 12:11:20,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:20,728 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2022-07-21 12:11:20,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:11:20,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661607568] [2022-07-21 12:11:20,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661607568] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:11:20,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:11:20,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 12:11:20,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653709865] [2022-07-21 12:11:20,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:11:20,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 12:11:20,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:11:20,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 12:11:20,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 12:11:20,761 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) [2022-07-21 12:11:21,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:11:21,399 INFO L93 Difference]: Finished difference Result 1079 states and 1520 transitions. [2022-07-21 12:11:21,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 12:11:21,401 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 [2022-07-21 12:11:21,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:11:21,412 INFO L225 Difference]: With dead ends: 1079 [2022-07-21 12:11:21,412 INFO L226 Difference]: Without dead ends: 543 [2022-07-21 12:11:21,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-21 12:11:21,419 INFO L413 NwaCegarLoop]: 672 mSDtfsCounter, 494 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 394 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 991 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 394 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 12:11:21,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 991 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [394 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 12:11:21,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2022-07-21 12:11:21,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 519. [2022-07-21 12:11:21,472 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) [2022-07-21 12:11:21,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 697 transitions. [2022-07-21 12:11:21,476 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 697 transitions. Word has length 168 [2022-07-21 12:11:21,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:11:21,477 INFO L495 AbstractCegarLoop]: Abstraction has 519 states and 697 transitions. [2022-07-21 12:11:21,477 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) [2022-07-21 12:11:21,477 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 697 transitions. [2022-07-21 12:11:21,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-07-21 12:11:21,480 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:11:21,480 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] [2022-07-21 12:11:21,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 12:11:21,481 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:11:21,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:11:21,481 INFO L85 PathProgramCache]: Analyzing trace with hash 459525447, now seen corresponding path program 1 times [2022-07-21 12:11:21,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:11:21,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725091473] [2022-07-21 12:11:21,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:11:21,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:11:21,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:21,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:11:21,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:21,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:21,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:21,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:21,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:21,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 12:11:21,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:21,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:21,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:21,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:21,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:21,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 12:11:21,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:21,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:21,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:21,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:21,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:21,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 12:11:21,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:21,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:21,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:21,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:21,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:21,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 12:11:21,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:21,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:21,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:21,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:21,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:21,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 12:11:21,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:21,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:21,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:21,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:21,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:21,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 12:11:21,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:21,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-21 12:11:21,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:21,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-21 12:11:21,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:21,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 12:11:21,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:21,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 12:11:21,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:21,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 12:11:21,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:21,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-21 12:11:21,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:21,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-21 12:11:21,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:21,784 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2022-07-21 12:11:21,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:11:21,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725091473] [2022-07-21 12:11:21,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725091473] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:11:21,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:11:21,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 12:11:21,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200372978] [2022-07-21 12:11:21,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:11:21,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 12:11:21,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:11:21,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 12:11:21,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 12:11:21,789 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) [2022-07-21 12:11:22,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:11:22,874 INFO L93 Difference]: Finished difference Result 1508 states and 2028 transitions. [2022-07-21 12:11:22,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 12:11:22,875 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 [2022-07-21 12:11:22,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:11:22,880 INFO L225 Difference]: With dead ends: 1508 [2022-07-21 12:11:22,880 INFO L226 Difference]: Without dead ends: 1025 [2022-07-21 12:11:22,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-21 12:11:22,883 INFO L413 NwaCegarLoop]: 751 mSDtfsCounter, 1186 mSDsluCounter, 1028 mSDsCounter, 0 mSdLazyCounter, 757 mSolverCounterSat, 520 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1245 SdHoareTripleChecker+Valid, 1779 SdHoareTripleChecker+Invalid, 1277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 520 IncrementalHoareTripleChecker+Valid, 757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 12:11:22,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1245 Valid, 1779 Invalid, 1277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [520 Valid, 757 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 12:11:22,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1025 states. [2022-07-21 12:11:22,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1025 to 975. [2022-07-21 12:11:22,920 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) [2022-07-21 12:11:22,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 975 states to 975 states and 1309 transitions. [2022-07-21 12:11:22,924 INFO L78 Accepts]: Start accepts. Automaton has 975 states and 1309 transitions. Word has length 168 [2022-07-21 12:11:22,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:11:22,925 INFO L495 AbstractCegarLoop]: Abstraction has 975 states and 1309 transitions. [2022-07-21 12:11:22,925 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) [2022-07-21 12:11:22,926 INFO L276 IsEmpty]: Start isEmpty. Operand 975 states and 1309 transitions. [2022-07-21 12:11:22,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-07-21 12:11:22,927 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:11:22,928 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] [2022-07-21 12:11:22,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 12:11:22,928 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:11:22,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:11:22,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1296910670, now seen corresponding path program 1 times [2022-07-21 12:11:22,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:11:22,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409804706] [2022-07-21 12:11:22,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:11:22,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:11:22,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:23,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:11:23,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:23,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:23,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:23,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:23,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:23,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 12:11:23,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:23,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:23,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:23,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:23,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:23,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 12:11:23,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:23,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:23,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:23,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:23,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:23,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 12:11:23,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:23,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:23,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:23,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:23,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:23,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 12:11:23,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:23,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:23,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:23,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:23,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:23,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 12:11:23,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:23,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:23,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:23,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:23,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:23,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 12:11:23,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:23,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-21 12:11:23,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:23,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-21 12:11:23,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:23,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 12:11:23,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:23,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 12:11:23,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:23,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 12:11:23,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:23,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-21 12:11:23,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:23,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-21 12:11:23,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:23,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 12:11:23,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:23,153 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2022-07-21 12:11:23,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:11:23,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409804706] [2022-07-21 12:11:23,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409804706] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:11:23,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:11:23,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 12:11:23,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792084609] [2022-07-21 12:11:23,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:11:23,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 12:11:23,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:11:23,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 12:11:23,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 12:11:23,155 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) [2022-07-21 12:11:24,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:11:24,062 INFO L93 Difference]: Finished difference Result 2455 states and 3239 transitions. [2022-07-21 12:11:24,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 12:11:24,063 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 [2022-07-21 12:11:24,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:11:24,074 INFO L225 Difference]: With dead ends: 2455 [2022-07-21 12:11:24,077 INFO L226 Difference]: Without dead ends: 1516 [2022-07-21 12:11:24,079 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 [2022-07-21 12:11:24,084 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 [2022-07-21 12:11:24,085 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] [2022-07-21 12:11:24,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1516 states. [2022-07-21 12:11:24,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1516 to 1438. [2022-07-21 12:11:24,144 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) [2022-07-21 12:11:24,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1438 states to 1438 states and 1880 transitions. [2022-07-21 12:11:24,151 INFO L78 Accepts]: Start accepts. Automaton has 1438 states and 1880 transitions. Word has length 174 [2022-07-21 12:11:24,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:11:24,152 INFO L495 AbstractCegarLoop]: Abstraction has 1438 states and 1880 transitions. [2022-07-21 12:11:24,152 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) [2022-07-21 12:11:24,152 INFO L276 IsEmpty]: Start isEmpty. Operand 1438 states and 1880 transitions. [2022-07-21 12:11:24,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-07-21 12:11:24,154 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:11:24,154 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] [2022-07-21 12:11:24,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 12:11:24,155 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:11:24,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:11:24,155 INFO L85 PathProgramCache]: Analyzing trace with hash -51513060, now seen corresponding path program 1 times [2022-07-21 12:11:24,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:11:24,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522114161] [2022-07-21 12:11:24,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:11:24,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:11:24,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:24,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:11:24,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:24,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:24,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:24,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:24,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:24,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 12:11:24,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:24,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:24,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:24,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:24,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:24,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 12:11:24,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:24,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:24,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:24,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:24,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:24,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 12:11:24,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:24,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:24,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:24,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:24,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:24,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 12:11:24,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:24,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:24,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:24,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:24,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:24,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 12:11:24,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:24,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:24,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:24,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:24,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:24,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 12:11:24,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:24,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-21 12:11:24,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:24,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-21 12:11:24,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:24,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 12:11:24,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:24,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 12:11:24,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:24,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 12:11:24,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:24,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-21 12:11:24,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:24,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-21 12:11:24,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:24,351 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2022-07-21 12:11:24,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:11:24,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522114161] [2022-07-21 12:11:24,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522114161] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:11:24,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:11:24,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 12:11:24,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566052963] [2022-07-21 12:11:24,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:11:24,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 12:11:24,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:11:24,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 12:11:24,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 12:11:24,354 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) [2022-07-21 12:11:25,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:11:25,129 INFO L93 Difference]: Finished difference Result 1512 states and 1976 transitions. [2022-07-21 12:11:25,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 12:11:25,130 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 [2022-07-21 12:11:25,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:11:25,136 INFO L225 Difference]: With dead ends: 1512 [2022-07-21 12:11:25,136 INFO L226 Difference]: Without dead ends: 1501 [2022-07-21 12:11:25,136 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 [2022-07-21 12:11:25,142 INFO L413 NwaCegarLoop]: 668 mSDtfsCounter, 934 mSDsluCounter, 907 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 293 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1001 SdHoareTripleChecker+Valid, 1575 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 293 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 12:11:25,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1001 Valid, 1575 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [293 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 12:11:25,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1501 states. [2022-07-21 12:11:25,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1501 to 1438. [2022-07-21 12:11:25,181 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) [2022-07-21 12:11:25,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1438 states to 1438 states and 1878 transitions. [2022-07-21 12:11:25,192 INFO L78 Accepts]: Start accepts. Automaton has 1438 states and 1878 transitions. Word has length 173 [2022-07-21 12:11:25,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:11:25,192 INFO L495 AbstractCegarLoop]: Abstraction has 1438 states and 1878 transitions. [2022-07-21 12:11:25,193 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) [2022-07-21 12:11:25,193 INFO L276 IsEmpty]: Start isEmpty. Operand 1438 states and 1878 transitions. [2022-07-21 12:11:25,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-07-21 12:11:25,194 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:11:25,194 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] [2022-07-21 12:11:25,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 12:11:25,194 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:11:25,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:11:25,195 INFO L85 PathProgramCache]: Analyzing trace with hash 5745242, now seen corresponding path program 1 times [2022-07-21 12:11:25,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:11:25,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100386214] [2022-07-21 12:11:25,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:11:25,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:11:25,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:25,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:11:25,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:25,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:25,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:25,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:25,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:25,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 12:11:25,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:25,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:25,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:25,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:25,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:25,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 12:11:25,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:25,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:25,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:25,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:25,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:25,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 12:11:25,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:25,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:25,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:25,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:25,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:25,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 12:11:25,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:25,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:25,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:25,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:25,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:25,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 12:11:25,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:25,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:25,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:25,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:25,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:25,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 12:11:25,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:25,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-21 12:11:25,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:25,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-21 12:11:25,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:25,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 12:11:25,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:25,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 12:11:25,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:25,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 12:11:25,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:25,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-21 12:11:25,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:25,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-21 12:11:25,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:25,500 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2022-07-21 12:11:25,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:11:25,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100386214] [2022-07-21 12:11:25,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100386214] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:11:25,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:11:25,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 12:11:25,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459610143] [2022-07-21 12:11:25,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:11:25,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 12:11:25,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:11:25,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 12:11:25,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 12:11:25,502 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) [2022-07-21 12:11:26,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:11:26,502 INFO L93 Difference]: Finished difference Result 1492 states and 1949 transitions. [2022-07-21 12:11:26,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 12:11:26,502 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 [2022-07-21 12:11:26,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:11:26,508 INFO L225 Difference]: With dead ends: 1492 [2022-07-21 12:11:26,508 INFO L226 Difference]: Without dead ends: 1489 [2022-07-21 12:11:26,509 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 [2022-07-21 12:11:26,510 INFO L413 NwaCegarLoop]: 653 mSDtfsCounter, 891 mSDsluCounter, 868 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 289 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 12:11:26,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [950 Valid, 1521 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [289 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 12:11:26,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1489 states. [2022-07-21 12:11:26,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1489 to 1437. [2022-07-21 12:11:26,605 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) [2022-07-21 12:11:26,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1437 states to 1437 states and 1876 transitions. [2022-07-21 12:11:26,631 INFO L78 Accepts]: Start accepts. Automaton has 1437 states and 1876 transitions. Word has length 173 [2022-07-21 12:11:26,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:11:26,632 INFO L495 AbstractCegarLoop]: Abstraction has 1437 states and 1876 transitions. [2022-07-21 12:11:26,632 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) [2022-07-21 12:11:26,632 INFO L276 IsEmpty]: Start isEmpty. Operand 1437 states and 1876 transitions. [2022-07-21 12:11:26,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-07-21 12:11:26,634 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:11:26,634 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] [2022-07-21 12:11:26,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 12:11:26,634 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:11:26,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:11:26,635 INFO L85 PathProgramCache]: Analyzing trace with hash 177987521, now seen corresponding path program 1 times [2022-07-21 12:11:26,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:11:26,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790953682] [2022-07-21 12:11:26,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:11:26,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:11:26,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:26,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:11:26,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:26,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:26,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:26,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:26,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:26,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 12:11:26,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:26,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:26,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:26,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:26,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:26,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 12:11:26,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:26,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:26,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:26,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:26,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:26,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 12:11:26,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:26,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:26,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:26,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:26,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:26,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 12:11:26,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:26,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:26,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:26,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:26,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:26,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 12:11:26,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:26,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:26,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:26,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:26,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:26,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 12:11:26,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:26,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-21 12:11:26,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:26,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-21 12:11:26,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:27,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 12:11:27,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:27,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 12:11:27,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:27,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 12:11:27,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:27,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-21 12:11:27,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:27,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-21 12:11:27,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:27,038 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2022-07-21 12:11:27,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:11:27,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790953682] [2022-07-21 12:11:27,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790953682] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:11:27,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:11:27,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 12:11:27,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455166446] [2022-07-21 12:11:27,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:11:27,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 12:11:27,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:11:27,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 12:11:27,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 12:11:27,039 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) [2022-07-21 12:11:27,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:11:27,819 INFO L93 Difference]: Finished difference Result 1491 states and 1947 transitions. [2022-07-21 12:11:27,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 12:11:27,819 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 [2022-07-21 12:11:27,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:11:27,826 INFO L225 Difference]: With dead ends: 1491 [2022-07-21 12:11:27,826 INFO L226 Difference]: Without dead ends: 1488 [2022-07-21 12:11:27,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-21 12:11:27,830 INFO L413 NwaCegarLoop]: 651 mSDtfsCounter, 888 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 295 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 947 SdHoareTripleChecker+Valid, 1245 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 295 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 12:11:27,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [947 Valid, 1245 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [295 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 12:11:27,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1488 states. [2022-07-21 12:11:27,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1488 to 1436. [2022-07-21 12:11:27,903 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) [2022-07-21 12:11:27,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 1874 transitions. [2022-07-21 12:11:27,909 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 1874 transitions. Word has length 174 [2022-07-21 12:11:27,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:11:27,909 INFO L495 AbstractCegarLoop]: Abstraction has 1436 states and 1874 transitions. [2022-07-21 12:11:27,910 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) [2022-07-21 12:11:27,910 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 1874 transitions. [2022-07-21 12:11:27,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-07-21 12:11:27,911 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:11:27,912 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] [2022-07-21 12:11:27,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 12:11:27,912 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:11:27,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:11:27,912 INFO L85 PathProgramCache]: Analyzing trace with hash 811215818, now seen corresponding path program 1 times [2022-07-21 12:11:27,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:11:27,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456118389] [2022-07-21 12:11:27,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:11:27,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:11:27,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:28,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:11:28,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:28,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:28,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:28,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:28,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:28,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 12:11:28,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:28,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:28,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:28,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:28,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:28,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 12:11:28,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:28,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:28,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:28,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:28,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:28,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 12:11:28,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:28,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:28,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:28,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:28,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:28,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 12:11:28,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:28,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:28,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:28,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:28,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:28,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 12:11:28,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:28,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:28,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:28,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:28,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:28,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 12:11:28,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:28,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-21 12:11:28,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:28,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-21 12:11:28,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:28,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 12:11:28,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:28,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 12:11:28,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:28,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 12:11:28,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:28,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-21 12:11:28,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:28,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-21 12:11:28,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:28,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-21 12:11:28,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:28,128 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2022-07-21 12:11:28,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:11:28,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456118389] [2022-07-21 12:11:28,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456118389] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:11:28,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:11:28,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 12:11:28,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542341572] [2022-07-21 12:11:28,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:11:28,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 12:11:28,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:11:28,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 12:11:28,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 12:11:28,130 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) [2022-07-21 12:11:29,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:11:29,603 INFO L93 Difference]: Finished difference Result 3807 states and 4930 transitions. [2022-07-21 12:11:29,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 12:11:29,603 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 [2022-07-21 12:11:29,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:11:29,612 INFO L225 Difference]: With dead ends: 3807 [2022-07-21 12:11:29,612 INFO L226 Difference]: Without dead ends: 2417 [2022-07-21 12:11:29,616 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 [2022-07-21 12:11:29,616 INFO L413 NwaCegarLoop]: 995 mSDtfsCounter, 815 mSDsluCounter, 1143 mSDsCounter, 0 mSdLazyCounter, 777 mSolverCounterSat, 383 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 863 SdHoareTripleChecker+Valid, 2138 SdHoareTripleChecker+Invalid, 1160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 383 IncrementalHoareTripleChecker+Valid, 777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-21 12:11:29,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [863 Valid, 2138 Invalid, 1160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [383 Valid, 777 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-21 12:11:29,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2417 states. [2022-07-21 12:11:29,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2417 to 2304. [2022-07-21 12:11:29,788 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) [2022-07-21 12:11:29,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2304 states to 2304 states and 2979 transitions. [2022-07-21 12:11:29,797 INFO L78 Accepts]: Start accepts. Automaton has 2304 states and 2979 transitions. Word has length 178 [2022-07-21 12:11:29,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:11:29,797 INFO L495 AbstractCegarLoop]: Abstraction has 2304 states and 2979 transitions. [2022-07-21 12:11:29,797 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) [2022-07-21 12:11:29,797 INFO L276 IsEmpty]: Start isEmpty. Operand 2304 states and 2979 transitions. [2022-07-21 12:11:29,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-07-21 12:11:29,798 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:11:29,798 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] [2022-07-21 12:11:29,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 12:11:29,799 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:11:29,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:11:29,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1222535741, now seen corresponding path program 1 times [2022-07-21 12:11:29,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:11:29,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969387666] [2022-07-21 12:11:29,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:11:29,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:11:29,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:29,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:11:29,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:29,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:29,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:29,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:29,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:29,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 12:11:29,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:29,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:30,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:30,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:30,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:30,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 12:11:30,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:30,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:30,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:30,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:30,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:30,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 12:11:30,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:30,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:30,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:30,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:30,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:30,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 12:11:30,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:30,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:30,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:30,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:30,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:30,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 12:11:30,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:30,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:30,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:30,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:30,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:30,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 12:11:30,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:30,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-21 12:11:30,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:30,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-21 12:11:30,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:30,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 12:11:30,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:30,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 12:11:30,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:30,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 12:11:30,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:30,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-21 12:11:30,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:30,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-21 12:11:30,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:30,164 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2022-07-21 12:11:30,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:11:30,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969387666] [2022-07-21 12:11:30,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969387666] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:11:30,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:11:30,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 12:11:30,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825280842] [2022-07-21 12:11:30,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:11:30,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 12:11:30,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:11:30,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 12:11:30,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 12:11:30,166 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) [2022-07-21 12:11:31,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:11:31,226 INFO L93 Difference]: Finished difference Result 2392 states and 3084 transitions. [2022-07-21 12:11:31,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 12:11:31,239 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 [2022-07-21 12:11:31,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:11:31,249 INFO L225 Difference]: With dead ends: 2392 [2022-07-21 12:11:31,250 INFO L226 Difference]: Without dead ends: 2389 [2022-07-21 12:11:31,251 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 [2022-07-21 12:11:31,252 INFO L413 NwaCegarLoop]: 649 mSDtfsCounter, 885 mSDsluCounter, 862 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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, 1.0s IncrementalHoareTripleChecker+Time [2022-07-21 12:11:31,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [944 Valid, 1511 Invalid, 728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-21 12:11:31,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2389 states. [2022-07-21 12:11:31,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2389 to 2303. [2022-07-21 12:11:31,413 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) [2022-07-21 12:11:31,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2303 states to 2303 states and 2977 transitions. [2022-07-21 12:11:31,419 INFO L78 Accepts]: Start accepts. Automaton has 2303 states and 2977 transitions. Word has length 175 [2022-07-21 12:11:31,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:11:31,420 INFO L495 AbstractCegarLoop]: Abstraction has 2303 states and 2977 transitions. [2022-07-21 12:11:31,420 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) [2022-07-21 12:11:31,420 INFO L276 IsEmpty]: Start isEmpty. Operand 2303 states and 2977 transitions. [2022-07-21 12:11:31,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-07-21 12:11:31,422 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:11:31,422 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] [2022-07-21 12:11:31,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 12:11:31,422 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:11:31,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:11:31,423 INFO L85 PathProgramCache]: Analyzing trace with hash -756202940, now seen corresponding path program 1 times [2022-07-21 12:11:31,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:11:31,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742990516] [2022-07-21 12:11:31,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:11:31,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:11:31,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:31,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:11:31,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:31,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:31,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:31,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:31,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:31,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 12:11:31,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:31,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:31,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:31,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:31,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:31,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 12:11:31,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:31,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:31,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:31,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:31,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:31,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 12:11:31,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:31,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:31,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:31,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:31,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:31,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 12:11:31,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:31,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:31,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:31,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:31,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:31,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 12:11:31,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:31,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:31,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:31,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:31,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:31,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 12:11:31,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:31,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-21 12:11:31,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:31,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-21 12:11:31,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:31,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 12:11:31,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:31,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 12:11:31,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:31,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 12:11:31,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:31,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-21 12:11:31,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:31,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-21 12:11:31,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:31,635 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2022-07-21 12:11:31,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:11:31,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742990516] [2022-07-21 12:11:31,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742990516] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:11:31,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:11:31,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 12:11:31,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444085507] [2022-07-21 12:11:31,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:11:31,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 12:11:31,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:11:31,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 12:11:31,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 12:11:31,638 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) [2022-07-21 12:11:32,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:11:32,776 INFO L93 Difference]: Finished difference Result 6465 states and 8493 transitions. [2022-07-21 12:11:32,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 12:11:32,777 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 [2022-07-21 12:11:32,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:11:32,791 INFO L225 Difference]: With dead ends: 6465 [2022-07-21 12:11:32,791 INFO L226 Difference]: Without dead ends: 4204 [2022-07-21 12:11:32,797 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 [2022-07-21 12:11:32,799 INFO L413 NwaCegarLoop]: 819 mSDtfsCounter, 1059 mSDsluCounter, 993 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 434 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1107 SdHoareTripleChecker+Valid, 1812 SdHoareTripleChecker+Invalid, 1121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 434 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-21 12:11:32,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1107 Valid, 1812 Invalid, 1121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [434 Valid, 687 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-21 12:11:32,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4204 states. [2022-07-21 12:11:32,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4204 to 4004. [2022-07-21 12:11:32,954 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) [2022-07-21 12:11:32,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4004 states to 4004 states and 5289 transitions. [2022-07-21 12:11:32,968 INFO L78 Accepts]: Start accepts. Automaton has 4004 states and 5289 transitions. Word has length 176 [2022-07-21 12:11:32,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:11:32,969 INFO L495 AbstractCegarLoop]: Abstraction has 4004 states and 5289 transitions. [2022-07-21 12:11:32,969 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) [2022-07-21 12:11:32,969 INFO L276 IsEmpty]: Start isEmpty. Operand 4004 states and 5289 transitions. [2022-07-21 12:11:32,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-07-21 12:11:32,972 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:11:32,972 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] [2022-07-21 12:11:32,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-21 12:11:32,973 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:11:32,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:11:32,973 INFO L85 PathProgramCache]: Analyzing trace with hash -117529203, now seen corresponding path program 1 times [2022-07-21 12:11:32,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:11:32,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648950464] [2022-07-21 12:11:32,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:11:32,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:11:33,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:33,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:11:33,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:33,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:33,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:33,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:33,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:33,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 12:11:33,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:33,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:33,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:33,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:33,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:33,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 12:11:33,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:33,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:33,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:33,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:33,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:33,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 12:11:33,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:33,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:33,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:33,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:33,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:33,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 12:11:33,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:33,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:33,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:33,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:33,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:33,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 12:11:33,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:33,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:33,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:33,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:33,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:33,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 12:11:33,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:33,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-21 12:11:33,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:33,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-21 12:11:33,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:33,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 12:11:33,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:33,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 12:11:33,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:33,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 12:11:33,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:33,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-21 12:11:33,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:33,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-21 12:11:33,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:33,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 12:11:33,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:33,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:33,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:33,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:33,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:33,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-07-21 12:11:33,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:33,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-07-21 12:11:33,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:33,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-21 12:11:33,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:33,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-07-21 12:11:33,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:33,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:11:33,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:33,211 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 434 trivial. 0 not checked. [2022-07-21 12:11:33,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:11:33,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648950464] [2022-07-21 12:11:33,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648950464] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:11:33,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:11:33,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 12:11:33,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022571408] [2022-07-21 12:11:33,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:11:33,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 12:11:33,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:11:33,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 12:11:33,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 12:11:33,214 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) [2022-07-21 12:11:34,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:11:34,894 INFO L93 Difference]: Finished difference Result 9780 states and 12919 transitions. [2022-07-21 12:11:34,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 12:11:34,895 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 [2022-07-21 12:11:34,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:11:34,921 INFO L225 Difference]: With dead ends: 9780 [2022-07-21 12:11:34,921 INFO L226 Difference]: Without dead ends: 5826 [2022-07-21 12:11:34,931 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 [2022-07-21 12:11:34,932 INFO L413 NwaCegarLoop]: 1056 mSDtfsCounter, 1185 mSDsluCounter, 2078 mSDsCounter, 0 mSdLazyCounter, 1387 mSolverCounterSat, 522 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1246 SdHoareTripleChecker+Valid, 3134 SdHoareTripleChecker+Invalid, 1909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 522 IncrementalHoareTripleChecker+Valid, 1387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-21 12:11:34,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1246 Valid, 3134 Invalid, 1909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [522 Valid, 1387 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-21 12:11:34,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5826 states. [2022-07-21 12:11:35,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5826 to 5550. [2022-07-21 12:11:35,136 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) [2022-07-21 12:11:35,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5550 states to 5550 states and 7329 transitions. [2022-07-21 12:11:35,157 INFO L78 Accepts]: Start accepts. Automaton has 5550 states and 7329 transitions. Word has length 230 [2022-07-21 12:11:35,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:11:35,157 INFO L495 AbstractCegarLoop]: Abstraction has 5550 states and 7329 transitions. [2022-07-21 12:11:35,158 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) [2022-07-21 12:11:35,158 INFO L276 IsEmpty]: Start isEmpty. Operand 5550 states and 7329 transitions. [2022-07-21 12:11:35,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-07-21 12:11:35,161 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:11:35,161 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] [2022-07-21 12:11:35,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-21 12:11:35,162 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:11:35,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:11:35,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1836153145, now seen corresponding path program 1 times [2022-07-21 12:11:35,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:11:35,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156833328] [2022-07-21 12:11:35,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:11:35,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:11:35,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:35,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:11:35,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:35,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:35,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:35,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:35,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:35,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 12:11:35,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:35,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:35,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:35,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:35,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:35,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 12:11:35,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:35,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:35,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:35,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:35,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:35,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 12:11:35,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:35,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:35,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:35,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:35,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:35,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 12:11:35,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:35,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:35,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:35,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:35,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:35,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 12:11:35,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:35,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:35,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:35,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:35,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:35,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 12:11:35,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:35,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-21 12:11:35,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:35,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-21 12:11:35,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:35,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 12:11:35,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:35,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 12:11:35,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:35,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 12:11:35,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:35,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-21 12:11:35,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:35,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-21 12:11:35,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:35,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 12:11:35,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:35,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:35,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:35,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:35,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:35,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-21 12:11:35,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:35,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:35,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:35,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-21 12:11:35,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:35,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-07-21 12:11:35,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:35,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-07-21 12:11:35,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:35,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-07-21 12:11:35,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:35,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-21 12:11:35,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:35,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-07-21 12:11:35,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:35,445 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2022-07-21 12:11:35,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:11:35,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156833328] [2022-07-21 12:11:35,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156833328] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:11:35,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:11:35,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 12:11:35,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199935172] [2022-07-21 12:11:35,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:11:35,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 12:11:35,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:11:35,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 12:11:35,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-07-21 12:11:35,449 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) [2022-07-21 12:11:36,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:11:36,693 INFO L93 Difference]: Finished difference Result 11354 states and 15015 transitions. [2022-07-21 12:11:36,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 12:11:36,708 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 [2022-07-21 12:11:36,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:11:36,742 INFO L225 Difference]: With dead ends: 11354 [2022-07-21 12:11:36,743 INFO L226 Difference]: Without dead ends: 5854 [2022-07-21 12:11:36,774 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 [2022-07-21 12:11:36,775 INFO L413 NwaCegarLoop]: 640 mSDtfsCounter, 646 mSDsluCounter, 959 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 509 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 1.0s IncrementalHoareTripleChecker+Time [2022-07-21 12:11:36,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [656 Valid, 1599 Invalid, 1111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [509 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-21 12:11:36,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5854 states. [2022-07-21 12:11:37,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5854 to 5550. [2022-07-21 12:11:37,110 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) [2022-07-21 12:11:37,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5550 states to 5550 states and 7281 transitions. [2022-07-21 12:11:37,126 INFO L78 Accepts]: Start accepts. Automaton has 5550 states and 7281 transitions. Word has length 257 [2022-07-21 12:11:37,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:11:37,127 INFO L495 AbstractCegarLoop]: Abstraction has 5550 states and 7281 transitions. [2022-07-21 12:11:37,127 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) [2022-07-21 12:11:37,128 INFO L276 IsEmpty]: Start isEmpty. Operand 5550 states and 7281 transitions. [2022-07-21 12:11:37,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2022-07-21 12:11:37,130 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:11:37,130 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] [2022-07-21 12:11:37,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-21 12:11:37,131 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:11:37,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:11:37,131 INFO L85 PathProgramCache]: Analyzing trace with hash 771181833, now seen corresponding path program 1 times [2022-07-21 12:11:37,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:11:37,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494436884] [2022-07-21 12:11:37,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:11:37,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:11:37,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:37,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:11:37,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:37,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:37,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:37,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:37,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:37,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 12:11:37,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:37,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:37,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:37,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:37,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:37,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 12:11:37,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:37,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:37,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:37,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:37,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:37,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 12:11:37,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:37,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:37,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:37,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:37,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:37,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 12:11:37,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:37,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:37,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:37,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:37,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:37,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 12:11:37,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:37,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:37,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:37,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:37,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:37,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 12:11:37,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:37,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-21 12:11:37,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:37,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-21 12:11:37,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:37,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 12:11:37,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:37,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 12:11:37,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:37,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 12:11:37,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:37,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-21 12:11:37,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:37,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-21 12:11:37,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:37,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 12:11:37,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:37,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:37,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:37,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:37,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:37,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-21 12:11:37,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:37,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:37,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:37,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-21 12:11:37,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:37,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-21 12:11:37,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:37,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-07-21 12:11:37,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:37,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-07-21 12:11:37,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:37,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-07-21 12:11:37,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:37,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:11:37,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:37,383 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2022-07-21 12:11:37,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:11:37,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494436884] [2022-07-21 12:11:37,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494436884] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:11:37,383 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:11:37,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-21 12:11:37,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154195289] [2022-07-21 12:11:37,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:11:37,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 12:11:37,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:11:37,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 12:11:37,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-07-21 12:11:37,385 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) [2022-07-21 12:11:39,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:11:39,424 INFO L93 Difference]: Finished difference Result 13716 states and 17977 transitions. [2022-07-21 12:11:39,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-21 12:11:39,424 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 [2022-07-21 12:11:39,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:11:39,467 INFO L225 Difference]: With dead ends: 13716 [2022-07-21 12:11:39,467 INFO L226 Difference]: Without dead ends: 8216 [2022-07-21 12:11:39,487 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 [2022-07-21 12:11:39,488 INFO L413 NwaCegarLoop]: 1188 mSDtfsCounter, 1502 mSDsluCounter, 2339 mSDsCounter, 0 mSdLazyCounter, 1969 mSolverCounterSat, 909 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1536 SdHoareTripleChecker+Valid, 3527 SdHoareTripleChecker+Invalid, 2878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 909 IncrementalHoareTripleChecker+Valid, 1969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-21 12:11:39,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1536 Valid, 3527 Invalid, 2878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [909 Valid, 1969 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-21 12:11:39,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8216 states. [2022-07-21 12:11:39,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8216 to 5566. [2022-07-21 12:11:39,707 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) [2022-07-21 12:11:39,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5566 states to 5566 states and 7297 transitions. [2022-07-21 12:11:39,722 INFO L78 Accepts]: Start accepts. Automaton has 5566 states and 7297 transitions. Word has length 258 [2022-07-21 12:11:39,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:11:39,722 INFO L495 AbstractCegarLoop]: Abstraction has 5566 states and 7297 transitions. [2022-07-21 12:11:39,723 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) [2022-07-21 12:11:39,723 INFO L276 IsEmpty]: Start isEmpty. Operand 5566 states and 7297 transitions. [2022-07-21 12:11:39,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-07-21 12:11:39,725 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:11:39,725 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] [2022-07-21 12:11:39,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-21 12:11:39,726 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:11:39,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:11:39,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1081606444, now seen corresponding path program 1 times [2022-07-21 12:11:39,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:11:39,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459928820] [2022-07-21 12:11:39,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:11:39,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:11:39,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:39,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:11:39,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:39,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:39,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:39,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:39,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:39,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 12:11:39,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:39,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:39,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:39,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:39,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:39,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 12:11:39,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:39,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:39,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:39,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:39,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:39,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 12:11:39,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:39,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:39,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:39,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:39,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:39,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 12:11:39,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:39,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:39,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:39,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:39,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:39,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 12:11:39,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:39,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:39,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:39,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:39,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:39,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 12:11:39,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:39,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-21 12:11:39,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:39,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-21 12:11:39,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:39,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 12:11:39,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:39,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 12:11:39,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:39,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 12:11:39,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:39,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-21 12:11:39,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:39,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-21 12:11:39,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:39,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 12:11:39,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:39,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:39,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:39,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:39,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:39,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-21 12:11:39,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:39,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:39,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:39,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-21 12:11:39,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:39,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-07-21 12:11:39,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:39,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-21 12:11:39,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:39,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-07-21 12:11:39,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:40,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-07-21 12:11:40,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:40,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-21 12:11:40,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:40,008 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2022-07-21 12:11:40,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:11:40,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459928820] [2022-07-21 12:11:40,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459928820] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:11:40,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:11:40,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-21 12:11:40,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678959922] [2022-07-21 12:11:40,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:11:40,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 12:11:40,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:11:40,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 12:11:40,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-07-21 12:11:40,011 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) [2022-07-21 12:11:41,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:11:41,866 INFO L93 Difference]: Finished difference Result 10769 states and 15547 transitions. [2022-07-21 12:11:41,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 12:11:41,866 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 [2022-07-21 12:11:41,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:11:41,895 INFO L225 Difference]: With dead ends: 10769 [2022-07-21 12:11:41,895 INFO L226 Difference]: Without dead ends: 10747 [2022-07-21 12:11:41,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-07-21 12:11:41,899 INFO L413 NwaCegarLoop]: 1031 mSDtfsCounter, 1736 mSDsluCounter, 2576 mSDsCounter, 0 mSdLazyCounter, 1558 mSolverCounterSat, 607 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1746 SdHoareTripleChecker+Valid, 3607 SdHoareTripleChecker+Invalid, 2165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 607 IncrementalHoareTripleChecker+Valid, 1558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-21 12:11:41,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1746 Valid, 3607 Invalid, 2165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [607 Valid, 1558 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-21 12:11:41,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10747 states. [2022-07-21 12:11:42,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10747 to 5557. [2022-07-21 12:11:42,181 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) [2022-07-21 12:11:42,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5557 states to 5557 states and 7282 transitions. [2022-07-21 12:11:42,204 INFO L78 Accepts]: Start accepts. Automaton has 5557 states and 7282 transitions. Word has length 259 [2022-07-21 12:11:42,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:11:42,204 INFO L495 AbstractCegarLoop]: Abstraction has 5557 states and 7282 transitions. [2022-07-21 12:11:42,204 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) [2022-07-21 12:11:42,205 INFO L276 IsEmpty]: Start isEmpty. Operand 5557 states and 7282 transitions. [2022-07-21 12:11:42,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-07-21 12:11:42,207 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:11:42,207 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] [2022-07-21 12:11:42,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-21 12:11:42,207 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:11:42,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:11:42,207 INFO L85 PathProgramCache]: Analyzing trace with hash 198257234, now seen corresponding path program 1 times [2022-07-21 12:11:42,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:11:42,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213020060] [2022-07-21 12:11:42,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:11:42,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:11:42,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:42,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:11:42,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:42,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:42,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:42,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:42,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:42,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 12:11:42,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:42,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:42,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:42,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:42,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:42,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 12:11:42,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:42,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:42,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:42,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:42,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:42,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 12:11:42,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:42,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:42,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:42,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:42,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:42,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 12:11:42,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:42,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:42,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:42,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:42,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:42,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 12:11:42,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:42,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:42,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:42,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:42,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:42,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 12:11:42,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:42,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-21 12:11:42,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:42,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-21 12:11:42,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:42,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 12:11:42,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:42,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 12:11:42,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:42,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 12:11:42,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:42,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-21 12:11:42,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:42,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-21 12:11:42,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:42,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 12:11:42,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:42,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:42,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:42,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:42,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:42,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-21 12:11:42,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:42,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:42,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:42,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-21 12:11:42,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:42,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-07-21 12:11:42,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:42,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-21 12:11:42,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:42,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-07-21 12:11:42,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:42,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-07-21 12:11:42,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:42,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-21 12:11:42,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:42,429 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2022-07-21 12:11:42,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:11:42,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213020060] [2022-07-21 12:11:42,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213020060] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:11:42,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:11:42,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 12:11:42,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533213125] [2022-07-21 12:11:42,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:11:42,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 12:11:42,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:11:42,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 12:11:42,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-07-21 12:11:42,431 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) [2022-07-21 12:11:43,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:11:43,850 INFO L93 Difference]: Finished difference Result 11354 states and 14850 transitions. [2022-07-21 12:11:43,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 12:11:43,850 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 [2022-07-21 12:11:43,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:11:43,869 INFO L225 Difference]: With dead ends: 11354 [2022-07-21 12:11:43,870 INFO L226 Difference]: Without dead ends: 5847 [2022-07-21 12:11:43,882 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 [2022-07-21 12:11:43,883 INFO L413 NwaCegarLoop]: 953 mSDtfsCounter, 930 mSDsluCounter, 2101 mSDsCounter, 0 mSdLazyCounter, 1253 mSolverCounterSat, 397 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 3054 SdHoareTripleChecker+Invalid, 1650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 397 IncrementalHoareTripleChecker+Valid, 1253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-21 12:11:43,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [978 Valid, 3054 Invalid, 1650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [397 Valid, 1253 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-21 12:11:43,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5847 states. [2022-07-21 12:11:44,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5847 to 5430. [2022-07-21 12:11:44,173 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) [2022-07-21 12:11:44,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5430 states to 5430 states and 7032 transitions. [2022-07-21 12:11:44,185 INFO L78 Accepts]: Start accepts. Automaton has 5430 states and 7032 transitions. Word has length 259 [2022-07-21 12:11:44,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:11:44,186 INFO L495 AbstractCegarLoop]: Abstraction has 5430 states and 7032 transitions. [2022-07-21 12:11:44,186 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) [2022-07-21 12:11:44,186 INFO L276 IsEmpty]: Start isEmpty. Operand 5430 states and 7032 transitions. [2022-07-21 12:11:44,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2022-07-21 12:11:44,190 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:11:44,190 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] [2022-07-21 12:11:44,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-21 12:11:44,191 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:11:44,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:11:44,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1017508335, now seen corresponding path program 1 times [2022-07-21 12:11:44,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:11:44,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035786723] [2022-07-21 12:11:44,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:11:44,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:11:44,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:44,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:11:44,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:44,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:44,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:44,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:44,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:44,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 12:11:44,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:44,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:44,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:44,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:44,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:44,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 12:11:44,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:44,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:44,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:44,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:44,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:44,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 12:11:44,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:44,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:44,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:44,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:44,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:44,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 12:11:44,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:44,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:44,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:44,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:44,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:44,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 12:11:44,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:44,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:44,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:44,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:44,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:44,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 12:11:44,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:44,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-21 12:11:44,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:44,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-21 12:11:44,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:44,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 12:11:44,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:44,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 12:11:44,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:44,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 12:11:44,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:44,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-21 12:11:44,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:44,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-21 12:11:44,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:44,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 12:11:44,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:44,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:44,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:44,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:44,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:44,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-21 12:11:44,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:44,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:44,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:44,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-21 12:11:44,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:44,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-07-21 12:11:44,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:44,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-21 12:11:44,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:44,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-07-21 12:11:44,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:44,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-07-21 12:11:44,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:44,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-21 12:11:44,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:44,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-07-21 12:11:44,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:44,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-07-21 12:11:44,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:44,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-07-21 12:11:44,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:44,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-07-21 12:11:44,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:44,433 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 447 trivial. 0 not checked. [2022-07-21 12:11:44,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:11:44,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035786723] [2022-07-21 12:11:44,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035786723] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:11:44,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:11:44,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-21 12:11:44,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130310340] [2022-07-21 12:11:44,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:11:44,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 12:11:44,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:11:44,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 12:11:44,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-07-21 12:11:44,435 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) [2022-07-21 12:11:46,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:11:46,081 INFO L93 Difference]: Finished difference Result 15917 states and 21972 transitions. [2022-07-21 12:11:46,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 12:11:46,081 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 [2022-07-21 12:11:46,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:11:46,110 INFO L225 Difference]: With dead ends: 15917 [2022-07-21 12:11:46,110 INFO L226 Difference]: Without dead ends: 10537 [2022-07-21 12:11:46,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2022-07-21 12:11:46,121 INFO L413 NwaCegarLoop]: 807 mSDtfsCounter, 1917 mSDsluCounter, 1941 mSDsCounter, 0 mSdLazyCounter, 1452 mSolverCounterSat, 1009 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1928 SdHoareTripleChecker+Valid, 2748 SdHoareTripleChecker+Invalid, 2461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1009 IncrementalHoareTripleChecker+Valid, 1452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-21 12:11:46,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1928 Valid, 2748 Invalid, 2461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1009 Valid, 1452 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-21 12:11:46,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10537 states. [2022-07-21 12:11:46,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10537 to 5416. [2022-07-21 12:11:46,363 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) [2022-07-21 12:11:46,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5416 states to 5416 states and 7014 transitions. [2022-07-21 12:11:46,374 INFO L78 Accepts]: Start accepts. Automaton has 5416 states and 7014 transitions. Word has length 292 [2022-07-21 12:11:46,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:11:46,374 INFO L495 AbstractCegarLoop]: Abstraction has 5416 states and 7014 transitions. [2022-07-21 12:11:46,374 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) [2022-07-21 12:11:46,375 INFO L276 IsEmpty]: Start isEmpty. Operand 5416 states and 7014 transitions. [2022-07-21 12:11:46,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2022-07-21 12:11:46,380 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:11:46,380 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] [2022-07-21 12:11:46,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-21 12:11:46,380 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:11:46,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:11:46,381 INFO L85 PathProgramCache]: Analyzing trace with hash -285423127, now seen corresponding path program 1 times [2022-07-21 12:11:46,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:11:46,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103247177] [2022-07-21 12:11:46,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:11:46,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:11:46,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:11:46,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:46,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:46,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 12:11:46,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:46,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:46,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 12:11:46,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:46,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:46,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 12:11:46,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:46,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:46,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 12:11:46,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:46,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:46,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 12:11:46,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:46,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:46,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 12:11:46,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-21 12:11:46,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-21 12:11:46,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 12:11:46,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 12:11:46,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 12:11:46,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-21 12:11:46,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-21 12:11:46,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 12:11:46,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:46,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:46,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-21 12:11:46,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:46,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-21 12:11:46,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-07-21 12:11:46,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-21 12:11:46,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-07-21 12:11:46,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-07-21 12:11:46,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-21 12:11:46,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-21 12:11:46,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-07-21 12:11:46,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-07-21 12:11:46,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-21 12:11:46,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:46,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:46,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:46,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 12:11:46,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:46,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:46,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2022-07-21 12:11:46,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-07-21 12:11:46,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:11:46,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:46,705 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 658 trivial. 0 not checked. [2022-07-21 12:11:46,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:11:46,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103247177] [2022-07-21 12:11:46,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103247177] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:11:46,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:11:46,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 12:11:46,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008353508] [2022-07-21 12:11:46,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:11:46,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 12:11:46,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:11:46,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 12:11:46,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-07-21 12:11:46,708 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) [2022-07-21 12:11:48,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:11:48,305 INFO L93 Difference]: Finished difference Result 5775 states and 7450 transitions. [2022-07-21 12:11:48,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 12:11:48,305 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 [2022-07-21 12:11:48,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:11:48,321 INFO L225 Difference]: With dead ends: 5775 [2022-07-21 12:11:48,321 INFO L226 Difference]: Without dead ends: 5683 [2022-07-21 12:11:48,324 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 [2022-07-21 12:11:48,324 INFO L413 NwaCegarLoop]: 635 mSDtfsCounter, 506 mSDsluCounter, 2801 mSDsCounter, 0 mSdLazyCounter, 2181 mSolverCounterSat, 397 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.3s IncrementalHoareTripleChecker+Time [2022-07-21 12:11:48,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 3436 Invalid, 2578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [397 Valid, 2181 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-21 12:11:48,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5683 states. [2022-07-21 12:11:48,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5683 to 5347. [2022-07-21 12:11:48,588 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) [2022-07-21 12:11:48,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5347 states to 5347 states and 6896 transitions. [2022-07-21 12:11:48,598 INFO L78 Accepts]: Start accepts. Automaton has 5347 states and 6896 transitions. Word has length 347 [2022-07-21 12:11:48,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:11:48,602 INFO L495 AbstractCegarLoop]: Abstraction has 5347 states and 6896 transitions. [2022-07-21 12:11:48,602 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) [2022-07-21 12:11:48,602 INFO L276 IsEmpty]: Start isEmpty. Operand 5347 states and 6896 transitions. [2022-07-21 12:11:48,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2022-07-21 12:11:48,609 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:11:48,609 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] [2022-07-21 12:11:48,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-21 12:11:48,610 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:11:48,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:11:48,610 INFO L85 PathProgramCache]: Analyzing trace with hash -106995251, now seen corresponding path program 1 times [2022-07-21 12:11:48,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:11:48,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681809381] [2022-07-21 12:11:48,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:11:48,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:11:48,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:11:48,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:48,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:48,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 12:11:48,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:48,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:48,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 12:11:48,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:48,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:48,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 12:11:48,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:48,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:48,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 12:11:48,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:48,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:48,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 12:11:48,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:48,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:48,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 12:11:48,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-21 12:11:48,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-21 12:11:48,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 12:11:48,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 12:11:48,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 12:11:48,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-21 12:11:48,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-21 12:11:48,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 12:11:48,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:48,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:48,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-21 12:11:48,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:48,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-21 12:11:48,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-07-21 12:11:48,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-21 12:11:48,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-07-21 12:11:48,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-07-21 12:11:48,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-21 12:11:48,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-21 12:11:48,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-07-21 12:11:48,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-07-21 12:11:48,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-21 12:11:48,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:48,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:48,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:48,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 12:11:48,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:48,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:48,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2022-07-21 12:11:48,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-07-21 12:11:48,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:11:48,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:48,939 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 658 trivial. 0 not checked. [2022-07-21 12:11:48,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:11:48,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681809381] [2022-07-21 12:11:48,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681809381] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:11:48,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:11:48,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 12:11:48,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287152760] [2022-07-21 12:11:48,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:11:48,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 12:11:48,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:11:48,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 12:11:48,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-07-21 12:11:48,942 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) [2022-07-21 12:11:50,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:11:50,999 INFO L93 Difference]: Finished difference Result 10119 states and 14197 transitions. [2022-07-21 12:11:50,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 12:11:50,999 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 [2022-07-21 12:11:51,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:11:51,023 INFO L225 Difference]: With dead ends: 10119 [2022-07-21 12:11:51,023 INFO L226 Difference]: Without dead ends: 9649 [2022-07-21 12:11:51,028 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 [2022-07-21 12:11:51,028 INFO L413 NwaCegarLoop]: 1012 mSDtfsCounter, 1384 mSDsluCounter, 3869 mSDsCounter, 0 mSdLazyCounter, 2420 mSolverCounterSat, 601 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1445 SdHoareTripleChecker+Valid, 4881 SdHoareTripleChecker+Invalid, 3021 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 601 IncrementalHoareTripleChecker+Valid, 2420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-21 12:11:51,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1445 Valid, 4881 Invalid, 3021 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [601 Valid, 2420 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-21 12:11:51,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9649 states. [2022-07-21 12:11:51,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9649 to 5029. [2022-07-21 12:11:51,305 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) [2022-07-21 12:11:51,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5029 states to 5029 states and 6466 transitions. [2022-07-21 12:11:51,315 INFO L78 Accepts]: Start accepts. Automaton has 5029 states and 6466 transitions. Word has length 354 [2022-07-21 12:11:51,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:11:51,315 INFO L495 AbstractCegarLoop]: Abstraction has 5029 states and 6466 transitions. [2022-07-21 12:11:51,316 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) [2022-07-21 12:11:51,316 INFO L276 IsEmpty]: Start isEmpty. Operand 5029 states and 6466 transitions. [2022-07-21 12:11:51,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2022-07-21 12:11:51,363 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:11:51,364 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] [2022-07-21 12:11:51,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-21 12:11:51,364 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:11:51,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:11:51,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1167972668, now seen corresponding path program 1 times [2022-07-21 12:11:51,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:11:51,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137277614] [2022-07-21 12:11:51,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:11:51,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:11:51,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:11:51,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:51,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:51,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 12:11:51,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:51,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:51,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 12:11:51,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:51,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:51,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 12:11:51,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:51,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:51,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 12:11:51,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:51,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:51,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 12:11:51,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:51,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:51,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 12:11:51,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-21 12:11:51,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-21 12:11:51,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 12:11:51,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 12:11:51,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 12:11:51,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-21 12:11:51,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-21 12:11:51,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 12:11:51,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:51,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:51,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-21 12:11:51,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:51,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-21 12:11:51,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-07-21 12:11:51,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-21 12:11:51,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-07-21 12:11:51,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-07-21 12:11:51,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-21 12:11:51,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-21 12:11:51,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-07-21 12:11:51,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-07-21 12:11:51,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-21 12:11:51,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:51,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:51,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:51,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 12:11:51,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:51,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:51,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-07-21 12:11:51,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:51,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:51,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:11:51,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-07-21 12:11:51,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:51,665 INFO L134 CoverageAnalysis]: Checked inductivity of 667 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 661 trivial. 0 not checked. [2022-07-21 12:11:51,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:11:51,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137277614] [2022-07-21 12:11:51,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137277614] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:11:51,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:11:51,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 12:11:51,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474577956] [2022-07-21 12:11:51,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:11:51,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 12:11:51,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:11:51,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 12:11:51,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-07-21 12:11:51,668 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) [2022-07-21 12:11:53,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:11:53,222 INFO L93 Difference]: Finished difference Result 10352 states and 13349 transitions. [2022-07-21 12:11:53,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 12:11:53,223 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 [2022-07-21 12:11:53,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:11:53,237 INFO L225 Difference]: With dead ends: 10352 [2022-07-21 12:11:53,237 INFO L226 Difference]: Without dead ends: 5373 [2022-07-21 12:11:53,246 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 [2022-07-21 12:11:53,246 INFO L413 NwaCegarLoop]: 640 mSDtfsCounter, 747 mSDsluCounter, 2552 mSDsCounter, 0 mSdLazyCounter, 2010 mSolverCounterSat, 558 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.2s IncrementalHoareTripleChecker+Time [2022-07-21 12:11:53,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [758 Valid, 3192 Invalid, 2568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [558 Valid, 2010 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-21 12:11:53,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5373 states. [2022-07-21 12:11:53,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5373 to 5065. [2022-07-21 12:11:53,536 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) [2022-07-21 12:11:53,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5065 states to 5065 states and 6520 transitions. [2022-07-21 12:11:53,547 INFO L78 Accepts]: Start accepts. Automaton has 5065 states and 6520 transitions. Word has length 356 [2022-07-21 12:11:53,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:11:53,548 INFO L495 AbstractCegarLoop]: Abstraction has 5065 states and 6520 transitions. [2022-07-21 12:11:53,548 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) [2022-07-21 12:11:53,548 INFO L276 IsEmpty]: Start isEmpty. Operand 5065 states and 6520 transitions. [2022-07-21 12:11:53,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2022-07-21 12:11:53,557 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:11:53,557 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] [2022-07-21 12:11:53,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-21 12:11:53,558 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:11:53,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:11:53,558 INFO L85 PathProgramCache]: Analyzing trace with hash -622555303, now seen corresponding path program 1 times [2022-07-21 12:11:53,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:11:53,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613323316] [2022-07-21 12:11:53,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:11:53,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:11:53,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:11:53,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:53,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:53,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 12:11:53,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:53,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:53,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 12:11:53,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:53,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:53,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 12:11:53,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:53,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:53,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 12:11:53,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:53,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:53,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 12:11:53,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:53,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:53,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 12:11:53,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-21 12:11:53,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-21 12:11:53,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 12:11:53,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 12:11:53,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 12:11:53,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-21 12:11:53,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-21 12:11:53,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 12:11:53,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:53,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:53,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-21 12:11:53,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:53,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-21 12:11:53,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-07-21 12:11:53,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-21 12:11:53,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-07-21 12:11:53,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-07-21 12:11:53,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-21 12:11:53,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-21 12:11:53,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-07-21 12:11:53,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-07-21 12:11:53,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-21 12:11:53,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:53,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:53,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:53,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 12:11:53,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:53,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:53,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2022-07-21 12:11:53,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-07-21 12:11:53,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:11:53,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-07-21 12:11:53,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,860 INFO L134 CoverageAnalysis]: Checked inductivity of 674 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 661 trivial. 0 not checked. [2022-07-21 12:11:53,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:11:53,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613323316] [2022-07-21 12:11:53,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613323316] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:11:53,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:11:53,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 12:11:53,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754896406] [2022-07-21 12:11:53,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:11:53,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 12:11:53,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:11:53,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 12:11:53,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-07-21 12:11:53,863 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) [2022-07-21 12:11:56,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:11:56,031 INFO L93 Difference]: Finished difference Result 7753 states and 10558 transitions. [2022-07-21 12:11:56,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-21 12:11:56,032 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 [2022-07-21 12:11:56,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:11:56,034 INFO L225 Difference]: With dead ends: 7753 [2022-07-21 12:11:56,035 INFO L226 Difference]: Without dead ends: 0 [2022-07-21 12:11:56,050 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 [2022-07-21 12:11:56,051 INFO L413 NwaCegarLoop]: 1249 mSDtfsCounter, 1472 mSDsluCounter, 4926 mSDsCounter, 0 mSdLazyCounter, 2347 mSolverCounterSat, 832 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1532 SdHoareTripleChecker+Valid, 6175 SdHoareTripleChecker+Invalid, 3179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 832 IncrementalHoareTripleChecker+Valid, 2347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-21 12:11:56,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1532 Valid, 6175 Invalid, 3179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [832 Valid, 2347 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-21 12:11:56,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-21 12:11:56,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-21 12:11:56,052 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) [2022-07-21 12:11:56,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-21 12:11:56,054 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 366 [2022-07-21 12:11:56,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:11:56,054 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-21 12:11:56,054 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) [2022-07-21 12:11:56,055 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-21 12:11:56,055 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-21 12:11:56,057 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-21 12:11:56,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-21 12:11:56,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-21 12:12:25,048 WARN L233 SmtUtils]: Spent 27.89s 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) [2022-07-21 12:13:19,993 WARN L233 SmtUtils]: Spent 54.94s 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) [2022-07-21 12:14:19,845 WARN L233 SmtUtils]: Spent 59.83s 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) [2022-07-21 12:15:19,528 WARN L233 SmtUtils]: Spent 59.68s 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)