./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 eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-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-?-eb692b5 [2022-07-20 02:29:32,943 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 02:29:32,945 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 02:29:32,988 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 02:29:32,989 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 02:29:32,990 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 02:29:32,992 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 02:29:32,995 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 02:29:32,996 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 02:29:33,001 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 02:29:33,002 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 02:29:33,004 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 02:29:33,004 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 02:29:33,006 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 02:29:33,007 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 02:29:33,010 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 02:29:33,011 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 02:29:33,012 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 02:29:33,014 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 02:29:33,019 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 02:29:33,021 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 02:29:33,022 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 02:29:33,023 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 02:29:33,023 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 02:29:33,025 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 02:29:33,032 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 02:29:33,033 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 02:29:33,033 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 02:29:33,034 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 02:29:33,035 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 02:29:33,036 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 02:29:33,036 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 02:29:33,038 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 02:29:33,038 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 02:29:33,039 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 02:29:33,041 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 02:29:33,041 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 02:29:33,041 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 02:29:33,042 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 02:29:33,042 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 02:29:33,043 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 02:29:33,044 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 02:29:33,045 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-20 02:29:33,076 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 02:29:33,077 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 02:29:33,077 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 02:29:33,077 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 02:29:33,078 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 02:29:33,078 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 02:29:33,079 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 02:29:33,079 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 02:29:33,079 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 02:29:33,080 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 02:29:33,080 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 02:29:33,081 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 02:29:33,081 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 02:29:33,081 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 02:29:33,081 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 02:29:33,082 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 02:29:33,082 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 02:29:33,082 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 02:29:33,082 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 02:29:33,083 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 02:29:33,083 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 02:29:33,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 02:29:33,084 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 02:29:33,084 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 02:29:33,084 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 02:29:33,084 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 02:29:33,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 02:29:33,085 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 02:29:33,085 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 02:29:33,085 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 02:29:33,085 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da295a433f96a090e97fd0ee72a58f7ad7a804da074c3950d4e4dc7d412af0ef [2022-07-20 02:29:33,311 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 02:29:33,335 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 02:29:33,338 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 02:29:33,339 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 02:29:33,340 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 02:29:33,341 INFO L432 ainManager$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 [2022-07-20 02:29:33,411 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f8741b51/0b28e141b2744110a320d41628376957/FLAG3fd15c8c7 [2022-07-20 02:29:34,157 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 02:29:34,158 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 [2022-07-20 02:29:34,201 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f8741b51/0b28e141b2744110a320d41628376957/FLAG3fd15c8c7 [2022-07-20 02:29:34,382 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f8741b51/0b28e141b2744110a320d41628376957 [2022-07-20 02:29:34,384 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 02:29:34,385 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 02:29:34,387 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 02:29:34,387 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 02:29:34,393 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 02:29:34,394 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:29:34" (1/1) ... [2022-07-20 02:29:34,394 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48be3269 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:29:34, skipping insertion in model container [2022-07-20 02:29:34,395 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:29:34" (1/1) ... [2022-07-20 02:29:34,399 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 02:29:34,543 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 02:29:36,000 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] [2022-07-20 02:29:36,003 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] [2022-07-20 02:29:36,005 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] [2022-07-20 02:29:36,005 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] [2022-07-20 02:29:36,015 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 02:29:36,091 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 02:29:36,450 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] [2022-07-20 02:29:36,451 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] [2022-07-20 02:29:36,451 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] [2022-07-20 02:29:36,452 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] [2022-07-20 02:29:36,457 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 02:29:36,651 INFO L208 MainTranslator]: Completed translation [2022-07-20 02:29:36,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:29:36 WrapperNode [2022-07-20 02:29:36,652 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 02:29:36,653 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 02:29:36,653 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 02:29:36,653 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 02:29:36,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:29:36" (1/1) ... [2022-07-20 02:29:36,787 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:29:36" (1/1) ... [2022-07-20 02:29:37,001 INFO L137 Inliner]: procedures = 202, calls = 3694, calls flagged for inlining = 99, calls inlined = 91, statements flattened = 6973 [2022-07-20 02:29:37,002 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 02:29:37,003 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 02:29:37,003 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 02:29:37,003 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 02:29:37,012 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:29:36" (1/1) ... [2022-07-20 02:29:37,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:29:36" (1/1) ... [2022-07-20 02:29:37,052 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:29:36" (1/1) ... [2022-07-20 02:29:37,054 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:29:36" (1/1) ... [2022-07-20 02:29:37,179 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:29:36" (1/1) ... [2022-07-20 02:29:37,202 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:29:36" (1/1) ... [2022-07-20 02:29:37,228 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:29:36" (1/1) ... [2022-07-20 02:29:37,258 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 02:29:37,260 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 02:29:37,260 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 02:29:37,262 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 02:29:37,263 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:29:36" (1/1) ... [2022-07-20 02:29:37,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 02:29:37,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 02:29:37,297 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-20 02:29:37,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-20 02:29:37,386 INFO L130 BoogieDeclarations]: Found specification of procedure sd_isoc_init [2022-07-20 02:29:37,387 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_isoc_init [2022-07-20 02:29:37,387 INFO L130 BoogieDeclarations]: Found specification of procedure cit_check_button [2022-07-20 02:29:37,387 INFO L138 BoogieDeclarations]: Found implementation of procedure cit_check_button [2022-07-20 02:29:37,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-20 02:29:37,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-20 02:29:37,388 INFO L130 BoogieDeclarations]: Found specification of procedure cit_send_x_01_00_05 [2022-07-20 02:29:37,388 INFO L138 BoogieDeclarations]: Found implementation of procedure cit_send_x_01_00_05 [2022-07-20 02:29:37,388 INFO L130 BoogieDeclarations]: Found specification of procedure cit_send_x_00_05 [2022-07-20 02:29:37,388 INFO L138 BoogieDeclarations]: Found implementation of procedure cit_send_x_00_05 [2022-07-20 02:29:37,388 INFO L130 BoogieDeclarations]: Found specification of procedure cit_PacketFormat2 [2022-07-20 02:29:37,388 INFO L138 BoogieDeclarations]: Found implementation of procedure cit_PacketFormat2 [2022-07-20 02:29:37,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-20 02:29:37,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-20 02:29:37,389 INFO L130 BoogieDeclarations]: Found specification of procedure sd_start [2022-07-20 02:29:37,389 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_start [2022-07-20 02:29:37,389 INFO L130 BoogieDeclarations]: Found specification of procedure cit_send_x_00 [2022-07-20 02:29:37,389 INFO L138 BoogieDeclarations]: Found implementation of procedure cit_send_x_00 [2022-07-20 02:29:37,389 INFO L130 BoogieDeclarations]: Found specification of procedure sd_isoc_nego [2022-07-20 02:29:37,389 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_isoc_nego [2022-07-20 02:29:37,390 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_frame_add [2022-07-20 02:29:37,390 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_frame_add [2022-07-20 02:29:37,390 INFO L130 BoogieDeclarations]: Found specification of procedure cit_model2_Packet1 [2022-07-20 02:29:37,390 INFO L138 BoogieDeclarations]: Found implementation of procedure cit_model2_Packet1 [2022-07-20 02:29:37,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-20 02:29:37,390 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2022-07-20 02:29:37,390 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2022-07-20 02:29:37,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-20 02:29:37,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-20 02:29:37,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-20 02:29:37,391 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std [2022-07-20 02:29:37,391 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std [2022-07-20 02:29:37,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-20 02:29:37,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-20 02:29:37,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-20 02:29:37,392 INFO L130 BoogieDeclarations]: Found specification of procedure cit_read_reg [2022-07-20 02:29:37,392 INFO L138 BoogieDeclarations]: Found implementation of procedure cit_read_reg [2022-07-20 02:29:37,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-20 02:29:37,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-20 02:29:37,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-20 02:29:37,392 INFO L130 BoogieDeclarations]: Found specification of procedure cit_get_packet_size [2022-07-20 02:29:37,393 INFO L138 BoogieDeclarations]: Found implementation of procedure cit_get_packet_size [2022-07-20 02:29:37,393 INFO L130 BoogieDeclarations]: Found specification of procedure usb_clear_halt [2022-07-20 02:29:37,393 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_clear_halt [2022-07-20 02:29:37,393 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2022-07-20 02:29:37,393 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2022-07-20 02:29:37,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-20 02:29:37,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-20 02:29:37,394 INFO L130 BoogieDeclarations]: Found specification of procedure cit_model4_Packet1 [2022-07-20 02:29:37,395 INFO L138 BoogieDeclarations]: Found implementation of procedure cit_model4_Packet1 [2022-07-20 02:29:37,395 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_grab [2022-07-20 02:29:37,395 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_grab [2022-07-20 02:29:37,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-20 02:29:37,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_2_4 [2022-07-20 02:29:37,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_2_4 [2022-07-20 02:29:37,396 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-07-20 02:29:37,396 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-07-20 02:29:37,396 INFO L130 BoogieDeclarations]: Found specification of procedure sd_init [2022-07-20 02:29:37,397 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_init [2022-07-20 02:29:37,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-20 02:29:37,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_sd_driver_exit_6_2 [2022-07-20 02:29:37,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_sd_driver_exit_6_2 [2022-07-20 02:29:37,397 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2022-07-20 02:29:37,397 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2022-07-20 02:29:37,398 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_disconnect [2022-07-20 02:29:37,398 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_disconnect [2022-07-20 02:29:37,398 INFO L130 BoogieDeclarations]: Found specification of procedure cit_restart_stream [2022-07-20 02:29:37,398 INFO L138 BoogieDeclarations]: Found implementation of procedure cit_restart_stream [2022-07-20 02:29:37,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-20 02:29:37,398 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_resume [2022-07-20 02:29:37,398 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_resume [2022-07-20 02:29:37,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-07-20 02:29:37,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-07-20 02:29:37,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 02:29:37,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-20 02:29:37,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-20 02:29:37,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-20 02:29:37,400 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-07-20 02:29:37,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-07-20 02:29:37,400 INFO L130 BoogieDeclarations]: Found specification of procedure cit_write_reg [2022-07-20 02:29:37,400 INFO L138 BoogieDeclarations]: Found implementation of procedure cit_write_reg [2022-07-20 02:29:37,400 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-07-20 02:29:37,401 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-07-20 02:29:37,401 INFO L130 BoogieDeclarations]: Found specification of procedure sd_stopN [2022-07-20 02:29:37,401 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_stopN [2022-07-20 02:29:37,401 INFO L130 BoogieDeclarations]: Found specification of procedure sd_s_ctrl [2022-07-20 02:29:37,402 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_s_ctrl [2022-07-20 02:29:37,402 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_g_ctrl [2022-07-20 02:29:37,402 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_g_ctrl [2022-07-20 02:29:37,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-20 02:29:37,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-20 02:29:37,403 INFO L130 BoogieDeclarations]: Found specification of procedure sd_stop0 [2022-07-20 02:29:37,403 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_stop0 [2022-07-20 02:29:37,403 INFO L130 BoogieDeclarations]: Found specification of procedure cit_get_clock_div [2022-07-20 02:29:37,403 INFO L138 BoogieDeclarations]: Found implementation of procedure cit_get_clock_div [2022-07-20 02:29:37,403 INFO L130 BoogieDeclarations]: Found specification of procedure cit_model3_Packet1 [2022-07-20 02:29:37,403 INFO L138 BoogieDeclarations]: Found implementation of procedure cit_model3_Packet1 [2022-07-20 02:29:37,404 INFO L130 BoogieDeclarations]: Found specification of procedure cit_Packet_Format1 [2022-07-20 02:29:37,404 INFO L138 BoogieDeclarations]: Found implementation of procedure cit_Packet_Format1 [2022-07-20 02:29:37,404 INFO L130 BoogieDeclarations]: Found specification of procedure sd_init_controls [2022-07-20 02:29:37,404 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_init_controls [2022-07-20 02:29:37,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-20 02:29:37,404 INFO L130 BoogieDeclarations]: Found specification of procedure cit_send_FF_04_02 [2022-07-20 02:29:37,404 INFO L138 BoogieDeclarations]: Found implementation of procedure cit_send_FF_04_02 [2022-07-20 02:29:37,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-20 02:29:37,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-20 02:29:37,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 02:29:37,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 02:29:38,007 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 02:29:38,009 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 02:29:38,120 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-20 02:29:47,336 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-20 02:29:47,492 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 02:29:47,515 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 02:29:47,516 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-20 02:29:47,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:29:47 BoogieIcfgContainer [2022-07-20 02:29:47,520 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 02:29:47,522 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 02:29:47,522 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 02:29:47,526 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 02:29:47,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 02:29:34" (1/3) ... [2022-07-20 02:29:47,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@402f4593 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:29:47, skipping insertion in model container [2022-07-20 02:29:47,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:29:36" (2/3) ... [2022-07-20 02:29:47,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@402f4593 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:29:47, skipping insertion in model container [2022-07-20 02:29:47,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:29:47" (3/3) ... [2022-07-20 02:29:47,534 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-gspca-gspca_xirlink_cit.cil.i [2022-07-20 02:29:47,547 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 02:29:47,548 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-20 02:29:47,636 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 02:29:47,642 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@9440d97, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4695948b [2022-07-20 02:29:47,643 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-20 02:29:47,658 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) [2022-07-20 02:29:47,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-07-20 02:29:47,684 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:29:47,685 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] [2022-07-20 02:29:47,686 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 02:29:47,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:29:47,691 INFO L85 PathProgramCache]: Analyzing trace with hash -755739248, now seen corresponding path program 1 times [2022-07-20 02:29:47,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:29:47,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393478232] [2022-07-20 02:29:47,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:29:47,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:29:48,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:29:48,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:29:48,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:29:48,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:29:48,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:29:48,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 02:29:48,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:29:48,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:29:48,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:29:48,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 02:29:48,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:29:48,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:29:48,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:29:48,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 02:29:48,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:29:48,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:29:48,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:29:48,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 02:29:48,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:29:48,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:29:48,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:29:48,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 02:29:48,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:29:48,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:29:48,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:29:48,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-20 02:29:48,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:29:48,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:29:48,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:29:48,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-20 02:29:48,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:29:48,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:29:48,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:29:48,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-20 02:29:48,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:29:48,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-20 02:29:48,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:29:48,834 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2022-07-20 02:29:48,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:29:48,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393478232] [2022-07-20 02:29:48,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393478232] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:29:48,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:29:48,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 02:29:48,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317422379] [2022-07-20 02:29:48,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:29:48,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 02:29:48,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:29:48,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 02:29:48,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 02:29:48,883 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) [2022-07-20 02:30:02,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:30:02,024 INFO L93 Difference]: Finished difference Result 10035 states and 15555 transitions. [2022-07-20 02:30:02,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 02:30:02,026 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 [2022-07-20 02:30:02,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:30:02,115 INFO L225 Difference]: With dead ends: 10035 [2022-07-20 02:30:02,115 INFO L226 Difference]: Without dead ends: 7320 [2022-07-20 02:30:02,152 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 [2022-07-20 02:30:02,156 INFO L413 NwaCegarLoop]: 4881 mSDtfsCounter, 4875 mSDsluCounter, 3864 mSDsCounter, 0 mSdLazyCounter, 5862 mSolverCounterSat, 5702 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s 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, 12.3s IncrementalHoareTripleChecker+Time [2022-07-20 02:30:02,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6561 Valid, 8745 Invalid, 11564 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5702 Valid, 5862 Invalid, 0 Unknown, 0 Unchecked, 12.3s Time] [2022-07-20 02:30:02,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7320 states. [2022-07-20 02:30:03,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7320 to 5272. [2022-07-20 02:30:03,518 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) [2022-07-20 02:30:03,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5272 states to 5272 states and 8112 transitions. [2022-07-20 02:30:03,586 INFO L78 Accepts]: Start accepts. Automaton has 5272 states and 8112 transitions. Word has length 117 [2022-07-20 02:30:03,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:30:03,587 INFO L495 AbstractCegarLoop]: Abstraction has 5272 states and 8112 transitions. [2022-07-20 02:30:03,588 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) [2022-07-20 02:30:03,588 INFO L276 IsEmpty]: Start isEmpty. Operand 5272 states and 8112 transitions. [2022-07-20 02:30:03,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-07-20 02:30:03,604 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:30:03,604 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] [2022-07-20 02:30:03,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-20 02:30:03,605 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 02:30:03,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:30:03,606 INFO L85 PathProgramCache]: Analyzing trace with hash 201776202, now seen corresponding path program 1 times [2022-07-20 02:30:03,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:30:03,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847786581] [2022-07-20 02:30:03,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:30:03,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:30:03,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:03,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:30:03,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:03,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:30:03,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:03,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 02:30:03,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:03,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:30:03,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:03,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 02:30:03,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:03,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:30:03,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:04,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 02:30:04,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:04,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:30:04,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:04,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 02:30:04,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:04,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:30:04,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:04,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 02:30:04,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:04,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:30:04,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:04,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-20 02:30:04,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:04,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:30:04,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:04,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-20 02:30:04,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:04,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:30:04,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:04,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-20 02:30:04,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:04,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-20 02:30:04,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:04,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:30:04,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:04,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 02:30:04,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:04,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-20 02:30:04,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:04,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-20 02:30:04,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:04,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:30:04,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:04,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 02:30:04,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:04,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-20 02:30:04,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:04,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-20 02:30:04,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:04,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:30:04,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:04,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 02:30:04,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:04,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-20 02:30:04,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:04,215 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2022-07-20 02:30:04,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:30:04,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847786581] [2022-07-20 02:30:04,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847786581] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:30:04,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:30:04,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 02:30:04,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900974495] [2022-07-20 02:30:04,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:30:04,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 02:30:04,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:30:04,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 02:30:04,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 02:30:04,224 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) [2022-07-20 02:30:16,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:30:16,669 INFO L93 Difference]: Finished difference Result 19591 states and 30348 transitions. [2022-07-20 02:30:16,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 02:30:16,671 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 [2022-07-20 02:30:16,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:30:16,777 INFO L225 Difference]: With dead ends: 19591 [2022-07-20 02:30:16,777 INFO L226 Difference]: Without dead ends: 14340 [2022-07-20 02:30:16,832 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 [2022-07-20 02:30:16,833 INFO L413 NwaCegarLoop]: 4878 mSDtfsCounter, 4705 mSDsluCounter, 3826 mSDsCounter, 0 mSdLazyCounter, 5866 mSolverCounterSat, 5661 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s 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, 11.6s IncrementalHoareTripleChecker+Time [2022-07-20 02:30:16,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6391 Valid, 8704 Invalid, 11527 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5661 Valid, 5866 Invalid, 0 Unknown, 0 Unchecked, 11.6s Time] [2022-07-20 02:30:16,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14340 states. [2022-07-20 02:30:19,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14340 to 10247. [2022-07-20 02:30:19,680 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) [2022-07-20 02:30:19,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10247 states to 10247 states and 15797 transitions. [2022-07-20 02:30:19,756 INFO L78 Accepts]: Start accepts. Automaton has 10247 states and 15797 transitions. Word has length 185 [2022-07-20 02:30:19,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:30:19,757 INFO L495 AbstractCegarLoop]: Abstraction has 10247 states and 15797 transitions. [2022-07-20 02:30:19,758 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) [2022-07-20 02:30:19,758 INFO L276 IsEmpty]: Start isEmpty. Operand 10247 states and 15797 transitions. [2022-07-20 02:30:19,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-07-20 02:30:19,770 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:30:19,770 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] [2022-07-20 02:30:19,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-20 02:30:19,771 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 02:30:19,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:30:19,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1255827173, now seen corresponding path program 1 times [2022-07-20 02:30:19,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:30:19,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961864898] [2022-07-20 02:30:19,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:30:19,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:30:19,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:20,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:30:20,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:20,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:30:20,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:20,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 02:30:20,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:20,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:30:20,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:20,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 02:30:20,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:20,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:30:20,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:20,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 02:30:20,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:20,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:30:20,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:20,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 02:30:20,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:20,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:30:20,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:20,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 02:30:20,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:20,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:30:20,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:20,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-20 02:30:20,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:20,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:30:20,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:20,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-20 02:30:20,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:20,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:30:20,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:20,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-20 02:30:20,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:20,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-20 02:30:20,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:20,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-20 02:30:20,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:20,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-20 02:30:20,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:20,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-20 02:30:20,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:20,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:30:20,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:20,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-20 02:30:20,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:20,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-20 02:30:20,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:20,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-20 02:30:20,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:20,414 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2022-07-20 02:30:20,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:30:20,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961864898] [2022-07-20 02:30:20,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961864898] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:30:20,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:30:20,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 02:30:20,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246618322] [2022-07-20 02:30:20,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:30:20,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 02:30:20,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:30:20,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 02:30:20,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 02:30:20,417 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) [2022-07-20 02:30:31,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:30:31,091 INFO L93 Difference]: Finished difference Result 26615 states and 41243 transitions. [2022-07-20 02:30:31,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 02:30:31,092 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 [2022-07-20 02:30:31,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:30:31,382 INFO L225 Difference]: With dead ends: 26615 [2022-07-20 02:30:31,382 INFO L226 Difference]: Without dead ends: 21414 [2022-07-20 02:30:31,428 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 [2022-07-20 02:30:31,431 INFO L413 NwaCegarLoop]: 7977 mSDtfsCounter, 3855 mSDsluCounter, 4990 mSDsCounter, 0 mSdLazyCounter, 5868 mSolverCounterSat, 4132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5536 SdHoareTripleChecker+Valid, 12967 SdHoareTripleChecker+Invalid, 10000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4132 IncrementalHoareTripleChecker+Valid, 5868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-07-20 02:30:31,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5536 Valid, 12967 Invalid, 10000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4132 Valid, 5868 Invalid, 0 Unknown, 0 Unchecked, 9.9s Time] [2022-07-20 02:30:31,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21414 states. [2022-07-20 02:30:35,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21414 to 15289. [2022-07-20 02:30:35,366 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) [2022-07-20 02:30:35,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15289 states to 15289 states and 23581 transitions. [2022-07-20 02:30:35,490 INFO L78 Accepts]: Start accepts. Automaton has 15289 states and 23581 transitions. Word has length 176 [2022-07-20 02:30:35,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:30:35,491 INFO L495 AbstractCegarLoop]: Abstraction has 15289 states and 23581 transitions. [2022-07-20 02:30:35,491 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) [2022-07-20 02:30:35,491 INFO L276 IsEmpty]: Start isEmpty. Operand 15289 states and 23581 transitions. [2022-07-20 02:30:35,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-07-20 02:30:35,502 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:30:35,502 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] [2022-07-20 02:30:35,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-20 02:30:35,503 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 02:30:35,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:30:35,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1317866787, now seen corresponding path program 1 times [2022-07-20 02:30:35,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:30:35,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404130428] [2022-07-20 02:30:35,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:30:35,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:30:35,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:35,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:30:35,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:35,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:30:35,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:35,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 02:30:35,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:35,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:30:35,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:35,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 02:30:35,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:35,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:30:35,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:35,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 02:30:35,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:35,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:30:35,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:35,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 02:30:35,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:35,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:30:35,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:35,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 02:30:35,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:35,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:30:35,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:35,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-20 02:30:35,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:35,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:30:35,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:35,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-20 02:30:35,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:36,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:30:36,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:36,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-20 02:30:36,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:36,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-20 02:30:36,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:36,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-20 02:30:36,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:36,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-20 02:30:36,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:36,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-20 02:30:36,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:36,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:30:36,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:36,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-20 02:30:36,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:36,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-20 02:30:36,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:36,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-20 02:30:36,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:36,088 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked. [2022-07-20 02:30:36,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:30:36,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404130428] [2022-07-20 02:30:36,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404130428] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:30:36,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:30:36,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-20 02:30:36,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919706795] [2022-07-20 02:30:36,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:30:36,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:30:36,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:30:36,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:30:36,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-20 02:30:36,091 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) [2022-07-20 02:30:44,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:30:44,969 INFO L93 Difference]: Finished difference Result 21412 states and 33231 transitions. [2022-07-20 02:30:44,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 02:30:44,970 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 [2022-07-20 02:30:44,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:30:45,161 INFO L225 Difference]: With dead ends: 21412 [2022-07-20 02:30:45,162 INFO L226 Difference]: Without dead ends: 21373 [2022-07-20 02:30:45,212 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 [2022-07-20 02:30:45,213 INFO L413 NwaCegarLoop]: 4103 mSDtfsCounter, 3888 mSDsluCounter, 3888 mSDsCounter, 0 mSdLazyCounter, 4118 mSolverCounterSat, 4074 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s 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, 8.0s IncrementalHoareTripleChecker+Time [2022-07-20 02:30:45,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4695 Valid, 7991 Invalid, 8192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4074 Valid, 4118 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2022-07-20 02:30:45,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21373 states. [2022-07-20 02:30:49,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21373 to 15250. [2022-07-20 02:30:49,916 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) [2022-07-20 02:30:50,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15250 states to 15250 states and 23527 transitions. [2022-07-20 02:30:50,043 INFO L78 Accepts]: Start accepts. Automaton has 15250 states and 23527 transitions. Word has length 176 [2022-07-20 02:30:50,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:30:50,044 INFO L495 AbstractCegarLoop]: Abstraction has 15250 states and 23527 transitions. [2022-07-20 02:30:50,044 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) [2022-07-20 02:30:50,044 INFO L276 IsEmpty]: Start isEmpty. Operand 15250 states and 23527 transitions. [2022-07-20 02:30:50,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-07-20 02:30:50,059 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:30:50,060 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] [2022-07-20 02:30:50,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-20 02:30:50,060 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 02:30:50,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:30:50,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1957360498, now seen corresponding path program 1 times [2022-07-20 02:30:50,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:30:50,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294096704] [2022-07-20 02:30:50,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:30:50,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:30:50,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:50,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:30:50,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:50,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:30:50,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:50,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 02:30:50,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:50,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:30:50,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:50,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 02:30:50,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:50,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:30:50,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:50,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 02:30:50,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:50,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:30:50,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:50,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 02:30:50,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:50,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:30:50,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:50,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 02:30:50,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:50,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:30:50,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:50,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-20 02:30:50,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:50,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:30:50,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:50,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-20 02:30:50,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:50,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:30:50,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:50,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-20 02:30:50,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:50,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-20 02:30:50,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:50,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-20 02:30:50,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:50,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-20 02:30:50,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:50,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:30:50,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:50,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 02:30:50,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:50,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-20 02:30:50,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:50,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-07-20 02:30:50,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:50,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:30:50,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:50,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 02:30:50,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:50,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-20 02:30:50,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:50,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-20 02:30:50,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:50,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:30:50,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:50,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 02:30:50,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:50,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-20 02:30:50,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:30:50,688 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2022-07-20 02:30:50,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:30:50,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294096704] [2022-07-20 02:30:50,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294096704] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:30:50,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:30:50,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 02:30:50,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826929033] [2022-07-20 02:30:50,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:30:50,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 02:30:50,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:30:50,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 02:30:50,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-20 02:30:50,691 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) [2022-07-20 02:31:23,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:31:23,176 INFO L93 Difference]: Finished difference Result 61529 states and 95331 transitions. [2022-07-20 02:31:23,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-20 02:31:23,177 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 [2022-07-20 02:31:23,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:31:23,493 INFO L225 Difference]: With dead ends: 61529 [2022-07-20 02:31:23,493 INFO L226 Difference]: Without dead ends: 46300 [2022-07-20 02:31:23,669 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 [2022-07-20 02:31:23,670 INFO L413 NwaCegarLoop]: 5850 mSDtfsCounter, 10000 mSDsluCounter, 7062 mSDsCounter, 0 mSdLazyCounter, 16128 mSolverCounterSat, 12409 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.4s 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, 29.7s IncrementalHoareTripleChecker+Time [2022-07-20 02:31:23,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12511 Valid, 12912 Invalid, 28537 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [12409 Valid, 16128 Invalid, 0 Unknown, 0 Unchecked, 29.7s Time] [2022-07-20 02:31:23,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46300 states. [2022-07-20 02:31:33,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46300 to 33014. [2022-07-20 02:31:33,564 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) [2022-07-20 02:31:34,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33014 states to 33014 states and 50894 transitions. [2022-07-20 02:31:34,119 INFO L78 Accepts]: Start accepts. Automaton has 33014 states and 50894 transitions. Word has length 207 [2022-07-20 02:31:34,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:31:34,120 INFO L495 AbstractCegarLoop]: Abstraction has 33014 states and 50894 transitions. [2022-07-20 02:31:34,120 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) [2022-07-20 02:31:34,121 INFO L276 IsEmpty]: Start isEmpty. Operand 33014 states and 50894 transitions. [2022-07-20 02:31:34,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-07-20 02:31:34,167 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:31:34,168 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] [2022-07-20 02:31:34,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-20 02:31:34,168 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 02:31:34,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:31:34,169 INFO L85 PathProgramCache]: Analyzing trace with hash -272678099, now seen corresponding path program 1 times [2022-07-20 02:31:34,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:31:34,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586610859] [2022-07-20 02:31:34,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:31:34,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:31:34,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:31:34,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:31:34,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:31:34,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:31:34,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:31:34,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 02:31:34,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:31:34,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:31:34,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:31:34,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 02:31:34,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:31:34,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:31:34,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:31:34,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-20 02:31:34,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:31:34,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:31:34,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:31:34,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-20 02:31:34,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:31:34,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:31:34,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:31:34,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 02:31:34,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:31:34,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:31:34,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:31:34,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-20 02:31:34,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:31:34,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:31:34,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:31:34,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-20 02:31:34,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:31:34,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:31:34,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:31:34,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-20 02:31:34,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:31:34,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-20 02:31:34,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:31:34,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-20 02:31:34,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:31:34,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-20 02:31:34,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:31:34,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-20 02:31:34,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:31:34,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-20 02:31:34,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:31:34,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:31:34,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:31:34,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-20 02:31:34,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:31:34,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-20 02:31:34,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:31:34,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-20 02:31:34,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:31:34,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-20 02:31:34,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:31:34,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-20 02:31:34,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:31:34,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:31:34,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:31:34,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 02:31:34,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:31:34,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-20 02:31:34,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:31:34,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-07-20 02:31:34,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:31:34,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:31:34,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:31:34,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 02:31:34,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:31:34,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-20 02:31:34,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:31:34,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-20 02:31:34,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:31:34,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:31:34,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:31:34,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 02:31:34,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:31:34,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-20 02:31:34,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:31:34,864 INFO L134 CoverageAnalysis]: Checked inductivity of 667 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 667 trivial. 0 not checked. [2022-07-20 02:31:34,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:31:34,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586610859] [2022-07-20 02:31:34,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586610859] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:31:34,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:31:34,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-20 02:31:34,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510797764] [2022-07-20 02:31:34,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:31:34,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:31:34,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:31:34,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:31:34,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-20 02:31:34,868 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) [2022-07-20 02:31:44,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:31:44,296 INFO L93 Difference]: Finished difference Result 49350 states and 76427 transitions. [2022-07-20 02:31:44,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 02:31:44,297 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 [2022-07-20 02:31:44,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:31:44,299 INFO L225 Difference]: With dead ends: 49350 [2022-07-20 02:31:44,299 INFO L226 Difference]: Without dead ends: 0 [2022-07-20 02:31:44,595 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 [2022-07-20 02:31:44,596 INFO L413 NwaCegarLoop]: 4472 mSDtfsCounter, 4241 mSDsluCounter, 4265 mSDsCounter, 0 mSdLazyCounter, 4214 mSolverCounterSat, 4196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5042 SdHoareTripleChecker+Valid, 8737 SdHoareTripleChecker+Invalid, 8410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4196 IncrementalHoareTripleChecker+Valid, 4214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-07-20 02:31:44,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5042 Valid, 8737 Invalid, 8410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4196 Valid, 4214 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2022-07-20 02:31:44,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-20 02:31:44,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-20 02:31:44,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 02:31:44,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-20 02:31:44,614 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 274 [2022-07-20 02:31:44,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:31:44,615 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-20 02:31:44,615 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) [2022-07-20 02:31:44,615 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-20 02:31:44,615 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-20 02:31:44,617 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-07-20 02:31:44,618 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-07-20 02:31:44,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-20 02:31:44,620 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.