./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-gspca-gspca_xirlink_cit.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-gspca-gspca_xirlink_cit.cil.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 da295a433f96a090e97fd0ee72a58f7ad7a804da074c3950d4e4dc7d412af0ef --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 02:44:11,574 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 02:44:11,577 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 02:44:11,630 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 02:44:11,631 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 02:44:11,632 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 02:44:11,634 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 02:44:11,636 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 02:44:11,638 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 02:44:11,642 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 02:44:11,643 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 02:44:11,645 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 02:44:11,646 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 02:44:11,648 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 02:44:11,649 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 02:44:11,651 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 02:44:11,653 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 02:44:11,654 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 02:44:11,656 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 02:44:11,661 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 02:44:11,663 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 02:44:11,664 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 02:44:11,665 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 02:44:11,666 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 02:44:11,668 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 02:44:11,672 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 02:44:11,673 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 02:44:11,673 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 02:44:11,674 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 02:44:11,675 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 02:44:11,677 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 02:44:11,677 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 02:44:11,679 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 02:44:11,679 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 02:44:11,680 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 02:44:11,681 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 02:44:11,681 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 02:44:11,681 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 02:44:11,682 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 02:44:11,682 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 02:44:11,683 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 02:44:11,684 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 02:44:11,686 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-23 02:44:11,718 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 02:44:11,718 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 02:44:11,719 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 02:44:11,719 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 02:44:11,720 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 02:44:11,720 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 02:44:11,720 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 02:44:11,721 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 02:44:11,721 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 02:44:11,722 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 02:44:11,722 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 02:44:11,722 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 02:44:11,722 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 02:44:11,722 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 02:44:11,723 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 02:44:11,723 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 02:44:11,723 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 02:44:11,723 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 02:44:11,723 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 02:44:11,724 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 02:44:11,724 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 02:44:11,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 02:44:11,724 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 02:44:11,725 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 02:44:11,725 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 02:44:11,725 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 02:44:11,725 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 02:44:11,725 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 02:44:11,726 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 02:44:11,726 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 02:44:11,726 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da295a433f96a090e97fd0ee72a58f7ad7a804da074c3950d4e4dc7d412af0ef [2022-07-23 02:44:11,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 02:44:11,982 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 02:44:11,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 02:44:11,986 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 02:44:11,986 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 02:44:11,988 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-gspca-gspca_xirlink_cit.cil.i [2022-07-23 02:44:12,061 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/795ff0969/e866d676129849c09acf087867ea3016/FLAG23bb0a158 [2022-07-23 02:44:12,859 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 02:44:12,860 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-gspca-gspca_xirlink_cit.cil.i [2022-07-23 02:44:12,907 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/795ff0969/e866d676129849c09acf087867ea3016/FLAG23bb0a158 [2022-07-23 02:44:13,417 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/795ff0969/e866d676129849c09acf087867ea3016 [2022-07-23 02:44:13,420 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 02:44:13,421 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 02:44:13,423 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 02:44:13,423 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 02:44:13,426 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 02:44:13,427 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 02:44:13" (1/1) ... [2022-07-23 02:44:13,428 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1405b79c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:44:13, skipping insertion in model container [2022-07-23 02:44:13,428 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 02:44:13" (1/1) ... [2022-07-23 02:44:13,437 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 02:44:13,572 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 02:44:15,336 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-gspca-gspca_xirlink_cit.cil.i[277615,277628] [2022-07-23 02:44:15,338 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-gspca-gspca_xirlink_cit.cil.i[277762,277775] [2022-07-23 02:44:15,339 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-gspca-gspca_xirlink_cit.cil.i[277901,277914] [2022-07-23 02:44:15,339 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-gspca-gspca_xirlink_cit.cil.i[278059,278072] [2022-07-23 02:44:15,347 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 02:44:15,429 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 02:44:15,701 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-gspca-gspca_xirlink_cit.cil.i[277615,277628] [2022-07-23 02:44:15,702 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-gspca-gspca_xirlink_cit.cil.i[277762,277775] [2022-07-23 02:44:15,702 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-gspca-gspca_xirlink_cit.cil.i[277901,277914] [2022-07-23 02:44:15,703 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-gspca-gspca_xirlink_cit.cil.i[278059,278072] [2022-07-23 02:44:15,708 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 02:44:15,873 INFO L208 MainTranslator]: Completed translation [2022-07-23 02:44:15,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:44:15 WrapperNode [2022-07-23 02:44:15,874 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 02:44:15,875 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 02:44:15,875 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 02:44:15,875 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 02:44:15,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:44:15" (1/1) ... [2022-07-23 02:44:15,978 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:44:15" (1/1) ... [2022-07-23 02:44:16,218 INFO L137 Inliner]: procedures = 202, calls = 3694, calls flagged for inlining = 99, calls inlined = 91, statements flattened = 6973 [2022-07-23 02:44:16,219 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 02:44:16,220 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 02:44:16,221 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 02:44:16,221 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 02:44:16,229 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:44:15" (1/1) ... [2022-07-23 02:44:16,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:44:15" (1/1) ... [2022-07-23 02:44:16,258 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:44:15" (1/1) ... [2022-07-23 02:44:16,259 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:44:15" (1/1) ... [2022-07-23 02:44:16,360 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:44:15" (1/1) ... [2022-07-23 02:44:16,419 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:44:15" (1/1) ... [2022-07-23 02:44:16,456 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:44:15" (1/1) ... [2022-07-23 02:44:16,510 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 02:44:16,511 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 02:44:16,511 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 02:44:16,513 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 02:44:16,514 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:44:15" (1/1) ... [2022-07-23 02:44:16,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 02:44:16,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 02:44:16,541 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) [2022-07-23 02:44:16,553 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 [2022-07-23 02:44:16,578 INFO L130 BoogieDeclarations]: Found specification of procedure sd_isoc_init [2022-07-23 02:44:16,579 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_isoc_init [2022-07-23 02:44:16,579 INFO L130 BoogieDeclarations]: Found specification of procedure cit_check_button [2022-07-23 02:44:16,579 INFO L138 BoogieDeclarations]: Found implementation of procedure cit_check_button [2022-07-23 02:44:16,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-23 02:44:16,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-23 02:44:16,579 INFO L130 BoogieDeclarations]: Found specification of procedure cit_send_x_01_00_05 [2022-07-23 02:44:16,580 INFO L138 BoogieDeclarations]: Found implementation of procedure cit_send_x_01_00_05 [2022-07-23 02:44:16,580 INFO L130 BoogieDeclarations]: Found specification of procedure cit_send_x_00_05 [2022-07-23 02:44:16,580 INFO L138 BoogieDeclarations]: Found implementation of procedure cit_send_x_00_05 [2022-07-23 02:44:16,580 INFO L130 BoogieDeclarations]: Found specification of procedure cit_PacketFormat2 [2022-07-23 02:44:16,580 INFO L138 BoogieDeclarations]: Found implementation of procedure cit_PacketFormat2 [2022-07-23 02:44:16,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-23 02:44:16,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-23 02:44:16,581 INFO L130 BoogieDeclarations]: Found specification of procedure sd_start [2022-07-23 02:44:16,581 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_start [2022-07-23 02:44:16,581 INFO L130 BoogieDeclarations]: Found specification of procedure cit_send_x_00 [2022-07-23 02:44:16,581 INFO L138 BoogieDeclarations]: Found implementation of procedure cit_send_x_00 [2022-07-23 02:44:16,581 INFO L130 BoogieDeclarations]: Found specification of procedure sd_isoc_nego [2022-07-23 02:44:16,581 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_isoc_nego [2022-07-23 02:44:16,581 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_frame_add [2022-07-23 02:44:16,582 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_frame_add [2022-07-23 02:44:16,582 INFO L130 BoogieDeclarations]: Found specification of procedure cit_model2_Packet1 [2022-07-23 02:44:16,582 INFO L138 BoogieDeclarations]: Found implementation of procedure cit_model2_Packet1 [2022-07-23 02:44:16,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-23 02:44:16,582 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2022-07-23 02:44:16,582 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2022-07-23 02:44:16,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-23 02:44:16,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-23 02:44:16,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-23 02:44:16,583 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std [2022-07-23 02:44:16,583 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std [2022-07-23 02:44:16,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-23 02:44:16,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-23 02:44:16,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 02:44:16,584 INFO L130 BoogieDeclarations]: Found specification of procedure cit_read_reg [2022-07-23 02:44:16,584 INFO L138 BoogieDeclarations]: Found implementation of procedure cit_read_reg [2022-07-23 02:44:16,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-23 02:44:16,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-23 02:44:16,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-23 02:44:16,584 INFO L130 BoogieDeclarations]: Found specification of procedure cit_get_packet_size [2022-07-23 02:44:16,584 INFO L138 BoogieDeclarations]: Found implementation of procedure cit_get_packet_size [2022-07-23 02:44:16,585 INFO L130 BoogieDeclarations]: Found specification of procedure usb_clear_halt [2022-07-23 02:44:16,585 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_clear_halt [2022-07-23 02:44:16,585 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2022-07-23 02:44:16,585 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2022-07-23 02:44:16,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-23 02:44:16,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-23 02:44:16,585 INFO L130 BoogieDeclarations]: Found specification of procedure cit_model4_Packet1 [2022-07-23 02:44:16,586 INFO L138 BoogieDeclarations]: Found implementation of procedure cit_model4_Packet1 [2022-07-23 02:44:16,586 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_grab [2022-07-23 02:44:16,586 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_grab [2022-07-23 02:44:16,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-23 02:44:16,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_2_4 [2022-07-23 02:44:16,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_2_4 [2022-07-23 02:44:16,587 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-07-23 02:44:16,587 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-07-23 02:44:16,587 INFO L130 BoogieDeclarations]: Found specification of procedure sd_init [2022-07-23 02:44:16,587 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_init [2022-07-23 02:44:16,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-23 02:44:16,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_sd_driver_exit_6_2 [2022-07-23 02:44:16,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_sd_driver_exit_6_2 [2022-07-23 02:44:16,588 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2022-07-23 02:44:16,588 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2022-07-23 02:44:16,588 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_disconnect [2022-07-23 02:44:16,588 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_disconnect [2022-07-23 02:44:16,588 INFO L130 BoogieDeclarations]: Found specification of procedure cit_restart_stream [2022-07-23 02:44:16,588 INFO L138 BoogieDeclarations]: Found implementation of procedure cit_restart_stream [2022-07-23 02:44:16,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-23 02:44:16,589 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_resume [2022-07-23 02:44:16,589 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_resume [2022-07-23 02:44:16,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-07-23 02:44:16,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-07-23 02:44:16,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 02:44:16,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-23 02:44:16,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-23 02:44:16,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-23 02:44:16,590 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-07-23 02:44:16,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-07-23 02:44:16,590 INFO L130 BoogieDeclarations]: Found specification of procedure cit_write_reg [2022-07-23 02:44:16,590 INFO L138 BoogieDeclarations]: Found implementation of procedure cit_write_reg [2022-07-23 02:44:16,590 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-07-23 02:44:16,590 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-07-23 02:44:16,590 INFO L130 BoogieDeclarations]: Found specification of procedure sd_stopN [2022-07-23 02:44:16,591 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_stopN [2022-07-23 02:44:16,591 INFO L130 BoogieDeclarations]: Found specification of procedure sd_s_ctrl [2022-07-23 02:44:16,591 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_s_ctrl [2022-07-23 02:44:16,591 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_g_ctrl [2022-07-23 02:44:16,591 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_g_ctrl [2022-07-23 02:44:16,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-23 02:44:16,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-23 02:44:16,592 INFO L130 BoogieDeclarations]: Found specification of procedure sd_stop0 [2022-07-23 02:44:16,592 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_stop0 [2022-07-23 02:44:16,592 INFO L130 BoogieDeclarations]: Found specification of procedure cit_get_clock_div [2022-07-23 02:44:16,592 INFO L138 BoogieDeclarations]: Found implementation of procedure cit_get_clock_div [2022-07-23 02:44:16,592 INFO L130 BoogieDeclarations]: Found specification of procedure cit_model3_Packet1 [2022-07-23 02:44:16,592 INFO L138 BoogieDeclarations]: Found implementation of procedure cit_model3_Packet1 [2022-07-23 02:44:16,592 INFO L130 BoogieDeclarations]: Found specification of procedure cit_Packet_Format1 [2022-07-23 02:44:16,593 INFO L138 BoogieDeclarations]: Found implementation of procedure cit_Packet_Format1 [2022-07-23 02:44:16,593 INFO L130 BoogieDeclarations]: Found specification of procedure sd_init_controls [2022-07-23 02:44:16,593 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_init_controls [2022-07-23 02:44:16,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-23 02:44:16,593 INFO L130 BoogieDeclarations]: Found specification of procedure cit_send_FF_04_02 [2022-07-23 02:44:16,593 INFO L138 BoogieDeclarations]: Found implementation of procedure cit_send_FF_04_02 [2022-07-23 02:44:16,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-23 02:44:16,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-23 02:44:16,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 02:44:16,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 02:44:17,117 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 02:44:17,120 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 02:44:17,282 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-23 02:44:27,088 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-23 02:44:27,209 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 02:44:27,227 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 02:44:27,228 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-23 02:44:27,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 02:44:27 BoogieIcfgContainer [2022-07-23 02:44:27,232 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 02:44:27,233 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 02:44:27,233 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 02:44:27,237 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 02:44:27,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 02:44:13" (1/3) ... [2022-07-23 02:44:27,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@291a8c14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 02:44:27, skipping insertion in model container [2022-07-23 02:44:27,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:44:15" (2/3) ... [2022-07-23 02:44:27,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@291a8c14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 02:44:27, skipping insertion in model container [2022-07-23 02:44:27,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 02:44:27" (3/3) ... [2022-07-23 02:44:27,245 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-gspca-gspca_xirlink_cit.cil.i [2022-07-23 02:44:27,258 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 02:44:27,259 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-23 02:44:27,364 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 02:44:27,370 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@21765748, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4f6eb9fd [2022-07-23 02:44:27,370 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-23 02:44:27,386 INFO L276 IsEmpty]: Start isEmpty. Operand has 2725 states, 1463 states have (on average 1.21120984278879) internal successors, (1772), 1480 states have internal predecessors, (1772), 1213 states have call successors, (1213), 48 states have call predecessors, (1213), 47 states have return successors, (1207), 1200 states have call predecessors, (1207), 1207 states have call successors, (1207) [2022-07-23 02:44:27,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-07-23 02:44:27,406 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:44:27,407 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:44:27,408 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 02:44:27,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:44:27,412 INFO L85 PathProgramCache]: Analyzing trace with hash -755739248, now seen corresponding path program 1 times [2022-07-23 02:44:27,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 02:44:27,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200705687] [2022-07-23 02:44:27,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:44:27,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 02:44:27,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:44:28,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 02:44:28,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:44:28,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:44:28,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:44:28,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 02:44:28,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:44:28,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:44:28,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:44:28,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-23 02:44:28,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:44:28,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:44:28,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:44:28,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-23 02:44:28,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:44:28,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:44:28,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:44:28,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-23 02:44:28,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:44:28,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:44:28,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:44:28,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-23 02:44:28,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:44:28,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:44:28,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:44:28,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-23 02:44:28,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:44:28,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:44:28,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:44:28,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-23 02:44:28,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:44:28,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:44:28,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:44:28,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-23 02:44:28,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:44:28,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-23 02:44:28,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:44:28,531 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2022-07-23 02:44:28,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 02:44:28,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200705687] [2022-07-23 02:44:28,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200705687] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 02:44:28,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 02:44:28,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 02:44:28,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420094309] [2022-07-23 02:44:28,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:44:28,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 02:44:28,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 02:44:28,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 02:44:28,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 02:44:28,571 INFO L87 Difference]: Start difference. First operand has 2725 states, 1463 states have (on average 1.21120984278879) internal successors, (1772), 1480 states have internal predecessors, (1772), 1213 states have call successors, (1213), 48 states have call predecessors, (1213), 47 states have return successors, (1207), 1200 states have call predecessors, (1207), 1207 states have call successors, (1207) Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-23 02:44:43,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:44:43,424 INFO L93 Difference]: Finished difference Result 10035 states and 15555 transitions. [2022-07-23 02:44:43,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 02:44:43,426 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 117 [2022-07-23 02:44:43,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:44:43,586 INFO L225 Difference]: With dead ends: 10035 [2022-07-23 02:44:43,586 INFO L226 Difference]: Without dead ends: 7320 [2022-07-23 02:44:43,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 02:44:43,631 INFO L413 NwaCegarLoop]: 4881 mSDtfsCounter, 4875 mSDsluCounter, 3864 mSDsCounter, 0 mSdLazyCounter, 5862 mSolverCounterSat, 5702 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6561 SdHoareTripleChecker+Valid, 8745 SdHoareTripleChecker+Invalid, 11564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5702 IncrementalHoareTripleChecker+Valid, 5862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2022-07-23 02:44:43,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6561 Valid, 8745 Invalid, 11564 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5702 Valid, 5862 Invalid, 0 Unknown, 0 Unchecked, 13.8s Time] [2022-07-23 02:44:43,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7320 states. [2022-07-23 02:44:45,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7320 to 5272. [2022-07-23 02:44:45,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5272 states, 2815 states have (on average 1.2031971580817051) internal successors, (3387), 2846 states have internal predecessors, (3387), 2364 states have call successors, (2364), 92 states have call predecessors, (2364), 91 states have return successors, (2361), 2347 states have call predecessors, (2361), 2361 states have call successors, (2361) [2022-07-23 02:44:45,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5272 states to 5272 states and 8112 transitions. [2022-07-23 02:44:45,164 INFO L78 Accepts]: Start accepts. Automaton has 5272 states and 8112 transitions. Word has length 117 [2022-07-23 02:44:45,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:44:45,167 INFO L495 AbstractCegarLoop]: Abstraction has 5272 states and 8112 transitions. [2022-07-23 02:44:45,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-23 02:44:45,168 INFO L276 IsEmpty]: Start isEmpty. Operand 5272 states and 8112 transitions. [2022-07-23 02:44:45,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-07-23 02:44:45,189 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:44:45,189 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:44:45,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-23 02:44:45,190 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 02:44:45,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:44:45,191 INFO L85 PathProgramCache]: Analyzing trace with hash 201776202, now seen corresponding path program 1 times [2022-07-23 02:44:45,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 02:44:45,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932484057] [2022-07-23 02:44:45,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:44:45,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 02:44:45,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:44:45,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 02:44:45,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:44:45,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:44:45,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:44:45,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 02:44:45,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:44:45,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:44:45,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:44:45,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-23 02:44:45,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:44:45,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:44:45,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:44:45,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-23 02:44:45,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:44:45,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:44:45,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:44:45,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-23 02:44:45,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:44:45,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:44:45,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:44:45,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-23 02:44:45,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:44:45,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:44:45,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:44:45,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-23 02:44:45,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:44:45,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:44:45,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:44:45,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-23 02:44:45,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:44:45,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:44:45,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:44:45,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-23 02:44:45,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:44:45,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-23 02:44:45,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:44:45,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:44:45,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:44:45,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 02:44:45,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:44:45,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 02:44:45,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:44:45,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-23 02:44:45,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:44:45,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:44:45,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:44:45,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 02:44:45,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:44:45,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 02:44:45,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:44:45,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-23 02:44:45,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:44:45,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:44:45,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:44:45,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 02:44:45,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:44:45,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 02:44:45,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:44:45,899 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2022-07-23 02:44:45,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 02:44:45,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932484057] [2022-07-23 02:44:45,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932484057] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 02:44:45,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 02:44:45,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 02:44:45,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84119293] [2022-07-23 02:44:45,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:44:45,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 02:44:45,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 02:44:45,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 02:44:45,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 02:44:45,904 INFO L87 Difference]: Start difference. First operand 5272 states and 8112 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-23 02:45:01,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:45:01,209 INFO L93 Difference]: Finished difference Result 19591 states and 30348 transitions. [2022-07-23 02:45:01,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 02:45:01,209 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 185 [2022-07-23 02:45:01,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:45:01,374 INFO L225 Difference]: With dead ends: 19591 [2022-07-23 02:45:01,374 INFO L226 Difference]: Without dead ends: 14340 [2022-07-23 02:45:01,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 02:45:01,450 INFO L413 NwaCegarLoop]: 4878 mSDtfsCounter, 4705 mSDsluCounter, 3826 mSDsCounter, 0 mSdLazyCounter, 5866 mSolverCounterSat, 5661 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6391 SdHoareTripleChecker+Valid, 8704 SdHoareTripleChecker+Invalid, 11527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5661 IncrementalHoareTripleChecker+Valid, 5866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2022-07-23 02:45:01,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6391 Valid, 8704 Invalid, 11527 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5661 Valid, 5866 Invalid, 0 Unknown, 0 Unchecked, 14.2s Time] [2022-07-23 02:45:01,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14340 states. [2022-07-23 02:45:04,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14340 to 10247. [2022-07-23 02:45:04,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10247 states, 5418 states have (on average 1.1982281284606866) internal successors, (6492), 5484 states have internal predecessors, (6492), 4654 states have call successors, (4654), 174 states have call predecessors, (4654), 173 states have return successors, (4651), 4616 states have call predecessors, (4651), 4651 states have call successors, (4651) [2022-07-23 02:45:04,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10247 states to 10247 states and 15797 transitions. [2022-07-23 02:45:04,604 INFO L78 Accepts]: Start accepts. Automaton has 10247 states and 15797 transitions. Word has length 185 [2022-07-23 02:45:04,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:45:04,605 INFO L495 AbstractCegarLoop]: Abstraction has 10247 states and 15797 transitions. [2022-07-23 02:45:04,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-23 02:45:04,606 INFO L276 IsEmpty]: Start isEmpty. Operand 10247 states and 15797 transitions. [2022-07-23 02:45:04,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-07-23 02:45:04,616 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:45:04,617 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 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] [2022-07-23 02:45:04,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-23 02:45:04,617 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 02:45:04,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:45:04,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1255827173, now seen corresponding path program 1 times [2022-07-23 02:45:04,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 02:45:04,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44772552] [2022-07-23 02:45:04,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:45:04,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 02:45:04,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:05,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 02:45:05,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:05,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:45:05,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:05,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 02:45:05,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:05,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:45:05,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:05,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-23 02:45:05,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:05,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:45:05,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:05,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-23 02:45:05,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:05,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:45:05,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:05,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-23 02:45:05,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:05,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:45:05,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:05,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-23 02:45:05,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:05,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:45:05,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:05,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-23 02:45:05,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:05,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:45:05,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:05,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-23 02:45:05,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:05,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:45:05,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:05,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-23 02:45:05,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:05,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-23 02:45:05,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:05,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-23 02:45:05,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:05,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-23 02:45:05,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:05,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-23 02:45:05,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:05,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:45:05,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:05,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-23 02:45:05,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:05,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-23 02:45:05,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:05,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-23 02:45:05,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:05,294 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2022-07-23 02:45:05,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 02:45:05,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44772552] [2022-07-23 02:45:05,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44772552] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 02:45:05,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 02:45:05,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 02:45:05,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250421220] [2022-07-23 02:45:05,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:45:05,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 02:45:05,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 02:45:05,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 02:45:05,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 02:45:05,297 INFO L87 Difference]: Start difference. First operand 10247 states and 15797 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-23 02:45:19,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:45:19,943 INFO L93 Difference]: Finished difference Result 26615 states and 41243 transitions. [2022-07-23 02:45:19,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 02:45:19,944 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 176 [2022-07-23 02:45:19,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:45:20,122 INFO L225 Difference]: With dead ends: 26615 [2022-07-23 02:45:20,123 INFO L226 Difference]: Without dead ends: 21414 [2022-07-23 02:45:20,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 02:45:20,188 INFO L413 NwaCegarLoop]: 7977 mSDtfsCounter, 3855 mSDsluCounter, 4990 mSDsCounter, 0 mSdLazyCounter, 5868 mSolverCounterSat, 4132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5536 SdHoareTripleChecker+Valid, 12967 SdHoareTripleChecker+Invalid, 10000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4132 IncrementalHoareTripleChecker+Valid, 5868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2022-07-23 02:45:20,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5536 Valid, 12967 Invalid, 10000 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4132 Valid, 5868 Invalid, 0 Unknown, 0 Unchecked, 13.5s Time] [2022-07-23 02:45:20,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21414 states. [2022-07-23 02:45:24,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21414 to 15289. [2022-07-23 02:45:24,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15289 states, 8073 states have (on average 1.1980676328502415) internal successors, (9672), 8169 states have internal predecessors, (9672), 6956 states have call successors, (6956), 259 states have call predecessors, (6956), 258 states have return successors, (6953), 6902 states have call predecessors, (6953), 6953 states have call successors, (6953) [2022-07-23 02:45:24,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15289 states to 15289 states and 23581 transitions. [2022-07-23 02:45:24,582 INFO L78 Accepts]: Start accepts. Automaton has 15289 states and 23581 transitions. Word has length 176 [2022-07-23 02:45:24,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:45:24,586 INFO L495 AbstractCegarLoop]: Abstraction has 15289 states and 23581 transitions. [2022-07-23 02:45:24,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-23 02:45:24,587 INFO L276 IsEmpty]: Start isEmpty. Operand 15289 states and 23581 transitions. [2022-07-23 02:45:24,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-07-23 02:45:24,599 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:45:24,599 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 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] [2022-07-23 02:45:24,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-23 02:45:24,603 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 02:45:24,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:45:24,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1317866787, now seen corresponding path program 1 times [2022-07-23 02:45:24,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 02:45:24,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774538328] [2022-07-23 02:45:24,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:45:24,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 02:45:24,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:25,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 02:45:25,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:25,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:45:25,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:25,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 02:45:25,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:25,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:45:25,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:25,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-23 02:45:25,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:25,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:45:25,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:25,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-23 02:45:25,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:25,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:45:25,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:25,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-23 02:45:25,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:25,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:45:25,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:25,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-23 02:45:25,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:25,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:45:25,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:25,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-23 02:45:25,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:25,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:45:25,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:25,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-23 02:45:25,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:25,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:45:25,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:25,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-23 02:45:25,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:25,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-23 02:45:25,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:25,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-23 02:45:25,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:25,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-23 02:45:25,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:25,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-23 02:45:25,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:25,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:45:25,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:25,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-23 02:45:25,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:25,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-23 02:45:25,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:25,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-23 02:45:25,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:25,276 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked. [2022-07-23 02:45:25,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 02:45:25,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774538328] [2022-07-23 02:45:25,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774538328] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 02:45:25,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 02:45:25,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 02:45:25,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352500743] [2022-07-23 02:45:25,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:45:25,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 02:45:25,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 02:45:25,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 02:45:25,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 02:45:25,280 INFO L87 Difference]: Start difference. First operand 15289 states and 23581 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-23 02:45:34,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:45:34,499 INFO L93 Difference]: Finished difference Result 21412 states and 33231 transitions. [2022-07-23 02:45:34,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 02:45:34,499 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 176 [2022-07-23 02:45:34,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:45:34,679 INFO L225 Difference]: With dead ends: 21412 [2022-07-23 02:45:34,679 INFO L226 Difference]: Without dead ends: 21373 [2022-07-23 02:45:34,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-23 02:45:34,725 INFO L413 NwaCegarLoop]: 4103 mSDtfsCounter, 3888 mSDsluCounter, 3888 mSDsCounter, 0 mSdLazyCounter, 4118 mSolverCounterSat, 4074 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4695 SdHoareTripleChecker+Valid, 7991 SdHoareTripleChecker+Invalid, 8192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4074 IncrementalHoareTripleChecker+Valid, 4118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-07-23 02:45:34,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4695 Valid, 7991 Invalid, 8192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4074 Valid, 4118 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2022-07-23 02:45:34,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21373 states. [2022-07-23 02:45:38,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21373 to 15250. [2022-07-23 02:45:38,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15250 states, 8052 states have (on average 1.197839046199702) internal successors, (9645), 8142 states have internal predecessors, (9645), 6941 states have call successors, (6941), 256 states have call predecessors, (6941), 256 states have return successors, (6941), 6893 states have call predecessors, (6941), 6941 states have call successors, (6941) [2022-07-23 02:45:38,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15250 states to 15250 states and 23527 transitions. [2022-07-23 02:45:38,978 INFO L78 Accepts]: Start accepts. Automaton has 15250 states and 23527 transitions. Word has length 176 [2022-07-23 02:45:38,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:45:38,979 INFO L495 AbstractCegarLoop]: Abstraction has 15250 states and 23527 transitions. [2022-07-23 02:45:38,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-23 02:45:38,979 INFO L276 IsEmpty]: Start isEmpty. Operand 15250 states and 23527 transitions. [2022-07-23 02:45:38,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-07-23 02:45:38,993 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:45:38,994 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 8, 8, 8, 8, 8, 8, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-23 02:45:38,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-23 02:45:38,994 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 02:45:38,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:45:38,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1957360498, now seen corresponding path program 1 times [2022-07-23 02:45:38,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 02:45:38,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479162842] [2022-07-23 02:45:38,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:45:38,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 02:45:39,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:39,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 02:45:39,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:39,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:45:39,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:39,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 02:45:39,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:39,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:45:39,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:39,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-23 02:45:39,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:39,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:45:39,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:39,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-23 02:45:39,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:39,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:45:39,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:39,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-23 02:45:39,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:39,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:45:39,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:39,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-23 02:45:39,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:39,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:45:39,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:39,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-23 02:45:39,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:39,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:45:39,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:39,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-23 02:45:39,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:39,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:45:39,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:39,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-23 02:45:39,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:39,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-23 02:45:39,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:39,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-23 02:45:39,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:39,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-23 02:45:39,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:39,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:45:39,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:39,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 02:45:39,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:39,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 02:45:39,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:39,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-07-23 02:45:39,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:39,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:45:39,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:39,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 02:45:39,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:39,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 02:45:39,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:39,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-23 02:45:39,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:39,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:45:39,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:39,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 02:45:39,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:39,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 02:45:39,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:45:39,778 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2022-07-23 02:45:39,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 02:45:39,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479162842] [2022-07-23 02:45:39,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479162842] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 02:45:39,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 02:45:39,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 02:45:39,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507109434] [2022-07-23 02:45:39,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:45:39,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 02:45:39,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 02:45:39,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 02:45:39,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-23 02:45:39,782 INFO L87 Difference]: Start difference. First operand 15250 states and 23527 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-23 02:46:10,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:46:10,513 INFO L93 Difference]: Finished difference Result 61529 states and 95331 transitions. [2022-07-23 02:46:10,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-23 02:46:10,514 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 207 [2022-07-23 02:46:10,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:46:10,828 INFO L225 Difference]: With dead ends: 61529 [2022-07-23 02:46:10,829 INFO L226 Difference]: Without dead ends: 46300 [2022-07-23 02:46:11,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-23 02:46:11,024 INFO L413 NwaCegarLoop]: 5850 mSDtfsCounter, 10000 mSDsluCounter, 7062 mSDsCounter, 0 mSdLazyCounter, 16128 mSolverCounterSat, 12409 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12511 SdHoareTripleChecker+Valid, 12912 SdHoareTripleChecker+Invalid, 28537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 12409 IncrementalHoareTripleChecker+Valid, 16128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.0s IncrementalHoareTripleChecker+Time [2022-07-23 02:46:11,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12511 Valid, 12912 Invalid, 28537 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [12409 Valid, 16128 Invalid, 0 Unknown, 0 Unchecked, 28.0s Time] [2022-07-23 02:46:11,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46300 states. [2022-07-23 02:46:19,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46300 to 33014. [2022-07-23 02:46:19,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33014 states, 17426 states have (on average 1.1966027774589694) internal successors, (20852), 17616 states have internal predecessors, (20852), 15021 states have call successors, (15021), 566 states have call predecessors, (15021), 566 states have return successors, (15021), 14922 states have call predecessors, (15021), 15021 states have call successors, (15021) [2022-07-23 02:46:20,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33014 states to 33014 states and 50894 transitions. [2022-07-23 02:46:20,323 INFO L78 Accepts]: Start accepts. Automaton has 33014 states and 50894 transitions. Word has length 207 [2022-07-23 02:46:20,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:46:20,326 INFO L495 AbstractCegarLoop]: Abstraction has 33014 states and 50894 transitions. [2022-07-23 02:46:20,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-23 02:46:20,326 INFO L276 IsEmpty]: Start isEmpty. Operand 33014 states and 50894 transitions. [2022-07-23 02:46:20,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-07-23 02:46:20,380 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:46:20,381 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 11, 11, 11, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-23 02:46:20,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-23 02:46:20,383 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 02:46:20,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:46:20,383 INFO L85 PathProgramCache]: Analyzing trace with hash -272678099, now seen corresponding path program 1 times [2022-07-23 02:46:20,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 02:46:20,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203412275] [2022-07-23 02:46:20,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:46:20,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 02:46:20,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:46:20,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 02:46:20,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:46:20,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:46:20,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:46:20,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 02:46:20,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:46:20,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:46:20,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:46:20,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-23 02:46:20,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:46:20,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:46:20,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:46:20,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-23 02:46:20,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:46:20,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:46:20,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:46:20,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-23 02:46:20,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:46:20,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:46:20,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:46:20,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-23 02:46:20,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:46:20,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:46:20,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:46:20,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-23 02:46:20,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:46:20,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:46:20,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:46:20,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-23 02:46:20,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:46:20,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:46:20,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:46:20,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-23 02:46:20,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:46:20,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-23 02:46:20,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:46:20,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-23 02:46:20,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:46:20,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-23 02:46:20,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:46:20,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-23 02:46:20,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:46:20,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-23 02:46:20,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:46:20,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:46:20,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:46:20,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-23 02:46:20,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:46:20,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-23 02:46:20,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:46:20,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-23 02:46:20,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:46:20,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-23 02:46:20,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:46:20,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-23 02:46:20,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:46:20,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:46:20,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:46:20,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 02:46:20,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:46:20,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 02:46:20,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:46:20,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-07-23 02:46:21,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:46:21,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:46:21,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:46:21,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 02:46:21,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:46:21,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 02:46:21,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:46:21,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-23 02:46:21,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:46:21,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 02:46:21,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:46:21,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 02:46:21,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:46:21,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 02:46:21,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:46:21,058 INFO L134 CoverageAnalysis]: Checked inductivity of 667 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 667 trivial. 0 not checked. [2022-07-23 02:46:21,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 02:46:21,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203412275] [2022-07-23 02:46:21,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203412275] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 02:46:21,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 02:46:21,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 02:46:21,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331128512] [2022-07-23 02:46:21,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:46:21,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 02:46:21,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 02:46:21,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 02:46:21,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 02:46:21,062 INFO L87 Difference]: Start difference. First operand 33014 states and 50894 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-23 02:46:30,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:46:30,745 INFO L93 Difference]: Finished difference Result 49350 states and 76427 transitions. [2022-07-23 02:46:30,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 02:46:30,747 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 274 [2022-07-23 02:46:30,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:46:30,750 INFO L225 Difference]: With dead ends: 49350 [2022-07-23 02:46:30,750 INFO L226 Difference]: Without dead ends: 0 [2022-07-23 02:46:31,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-23 02:46:31,045 INFO L413 NwaCegarLoop]: 4472 mSDtfsCounter, 4241 mSDsluCounter, 4265 mSDsCounter, 0 mSdLazyCounter, 4212 mSolverCounterSat, 4198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5042 SdHoareTripleChecker+Valid, 8737 SdHoareTripleChecker+Invalid, 8410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4198 IncrementalHoareTripleChecker+Valid, 4212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-07-23 02:46:31,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5042 Valid, 8737 Invalid, 8410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4198 Valid, 4212 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2022-07-23 02:46:31,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-23 02:46:31,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-23 02:46:31,047 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) [2022-07-23 02:46:31,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-23 02:46:31,064 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 274 [2022-07-23 02:46:31,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:46:31,065 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-23 02:46:31,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-23 02:46:31,065 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-23 02:46:31,065 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-23 02:46:31,068 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-07-23 02:46:31,068 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-07-23 02:46:31,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-23 02:46:31,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.