./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c36dfa3b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.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 87fc46113f1aa6bf5cd254bff58332904e2431653df647e3a9a61cd4104d8890 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-04 14:14:38,879 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-04 14:14:38,880 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-04 14:14:38,930 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-04 14:14:38,931 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-04 14:14:38,933 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-04 14:14:38,935 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-04 14:14:38,943 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-04 14:14:38,945 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-04 14:14:38,945 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-04 14:14:38,946 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-04 14:14:38,947 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-04 14:14:38,947 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-04 14:14:38,951 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-04 14:14:38,953 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-04 14:14:38,955 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-04 14:14:38,956 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-04 14:14:38,957 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-04 14:14:38,958 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-04 14:14:38,959 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-04 14:14:38,960 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-04 14:14:38,962 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-04 14:14:38,963 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-04 14:14:38,964 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-04 14:14:38,966 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-04 14:14:38,971 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-04 14:14:38,971 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-04 14:14:38,972 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-04 14:14:38,973 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-04 14:14:38,973 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-04 14:14:38,974 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-04 14:14:38,974 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-04 14:14:38,975 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-04 14:14:38,976 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-04 14:14:38,977 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-04 14:14:38,977 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-04 14:14:38,978 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-04 14:14:38,978 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-04 14:14:38,978 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-04 14:14:38,979 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-04 14:14:38,979 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-04 14:14:38,980 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-04 14:14:39,008 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-04 14:14:39,008 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-04 14:14:39,009 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-04 14:14:39,009 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-04 14:14:39,010 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-04 14:14:39,010 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-04 14:14:39,010 INFO L138 SettingsManager]: * Use SBE=true [2021-11-04 14:14:39,010 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-04 14:14:39,010 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-04 14:14:39,010 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-04 14:14:39,011 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-04 14:14:39,011 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-04 14:14:39,011 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-04 14:14:39,011 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-04 14:14:39,012 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-04 14:14:39,012 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-04 14:14:39,012 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-04 14:14:39,012 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-04 14:14:39,012 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-04 14:14:39,012 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 14:14:39,013 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-04 14:14:39,013 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-04 14:14:39,013 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-04 14:14:39,013 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-04 14:14:39,013 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-04 14:14:39,013 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-04 14:14:39,013 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-04 14:14:39,015 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-04 14:14:39,015 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-04 14:14:39,015 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87fc46113f1aa6bf5cd254bff58332904e2431653df647e3a9a61cd4104d8890 [2021-11-04 14:14:39,192 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-04 14:14:39,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-04 14:14:39,217 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-04 14:14:39,218 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-04 14:14:39,219 INFO L275 PluginConnector]: CDTParser initialized [2021-11-04 14:14:39,220 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i [2021-11-04 14:14:39,265 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d4313c7a/cbf0d085919e4795b01f1ecba6c3f782/FLAGc7d0ba5e1 [2021-11-04 14:14:39,850 INFO L306 CDTParser]: Found 1 translation units. [2021-11-04 14:14:39,850 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i [2021-11-04 14:14:39,887 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d4313c7a/cbf0d085919e4795b01f1ecba6c3f782/FLAGc7d0ba5e1 [2021-11-04 14:14:40,299 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d4313c7a/cbf0d085919e4795b01f1ecba6c3f782 [2021-11-04 14:14:40,302 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-04 14:14:40,304 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-04 14:14:40,306 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-04 14:14:40,307 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-04 14:14:40,309 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-04 14:14:40,309 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 02:14:40" (1/1) ... [2021-11-04 14:14:40,310 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71d70970 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 02:14:40, skipping insertion in model container [2021-11-04 14:14:40,310 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 02:14:40" (1/1) ... [2021-11-04 14:14:40,315 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-04 14:14:40,401 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-04 14:14:42,014 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[287816,287829] [2021-11-04 14:14:42,017 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[287961,287974] [2021-11-04 14:14:42,017 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288107,288120] [2021-11-04 14:14:42,017 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288272,288285] [2021-11-04 14:14:42,018 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288430,288443] [2021-11-04 14:14:42,018 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288588,288601] [2021-11-04 14:14:42,019 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288746,288759] [2021-11-04 14:14:42,032 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288906,288919] [2021-11-04 14:14:42,032 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289065,289078] [2021-11-04 14:14:42,032 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289204,289217] [2021-11-04 14:14:42,036 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289346,289359] [2021-11-04 14:14:42,037 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289495,289508] [2021-11-04 14:14:42,041 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289634,289647] [2021-11-04 14:14:42,041 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289789,289802] [2021-11-04 14:14:42,042 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289949,289962] [2021-11-04 14:14:42,047 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290100,290113] [2021-11-04 14:14:42,048 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290251,290264] [2021-11-04 14:14:42,050 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290403,290416] [2021-11-04 14:14:42,050 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290552,290565] [2021-11-04 14:14:42,051 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290700,290713] [2021-11-04 14:14:42,051 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290857,290870] [2021-11-04 14:14:42,051 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291006,291019] [2021-11-04 14:14:42,052 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291162,291175] [2021-11-04 14:14:42,052 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291315,291328] [2021-11-04 14:14:42,052 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291461,291474] [2021-11-04 14:14:42,054 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291604,291617] [2021-11-04 14:14:42,054 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291756,291769] [2021-11-04 14:14:42,055 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291902,291915] [2021-11-04 14:14:42,055 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292047,292060] [2021-11-04 14:14:42,056 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292201,292214] [2021-11-04 14:14:42,056 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292352,292365] [2021-11-04 14:14:42,057 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292507,292520] [2021-11-04 14:14:42,057 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292659,292672] [2021-11-04 14:14:42,058 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292814,292827] [2021-11-04 14:14:42,058 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292978,292991] [2021-11-04 14:14:42,058 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293134,293147] [2021-11-04 14:14:42,060 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293298,293311] [2021-11-04 14:14:42,060 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293440,293453] [2021-11-04 14:14:42,060 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293598,293611] [2021-11-04 14:14:42,060 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293765,293778] [2021-11-04 14:14:42,061 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293924,293937] [2021-11-04 14:14:42,061 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294083,294096] [2021-11-04 14:14:42,061 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294232,294245] [2021-11-04 14:14:42,061 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294379,294392] [2021-11-04 14:14:42,062 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294518,294531] [2021-11-04 14:14:42,062 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294681,294694] [2021-11-04 14:14:42,062 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294847,294860] [2021-11-04 14:14:42,063 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295011,295024] [2021-11-04 14:14:42,064 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295176,295189] [2021-11-04 14:14:42,064 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295341,295354] [2021-11-04 14:14:42,064 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295507,295520] [2021-11-04 14:14:42,064 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295672,295685] [2021-11-04 14:14:42,065 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295839,295852] [2021-11-04 14:14:42,065 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295999,296012] [2021-11-04 14:14:42,065 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296161,296174] [2021-11-04 14:14:42,066 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296320,296333] [2021-11-04 14:14:42,066 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296466,296479] [2021-11-04 14:14:42,066 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296609,296622] [2021-11-04 14:14:42,067 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296753,296766] [2021-11-04 14:14:42,067 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296896,296909] [2021-11-04 14:14:42,067 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297040,297053] [2021-11-04 14:14:42,068 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297181,297194] [2021-11-04 14:14:42,068 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297319,297332] [2021-11-04 14:14:42,069 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297477,297490] [2021-11-04 14:14:42,069 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297636,297649] [2021-11-04 14:14:42,069 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297792,297805] [2021-11-04 14:14:42,069 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297941,297954] [2021-11-04 14:14:42,070 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298093,298106] [2021-11-04 14:14:42,071 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298244,298257] [2021-11-04 14:14:42,071 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298393,298406] [2021-11-04 14:14:42,071 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298545,298558] [2021-11-04 14:14:42,071 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298693,298706] [2021-11-04 14:14:42,072 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298846,298859] [2021-11-04 14:14:42,072 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298997,299010] [2021-11-04 14:14:42,072 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299147,299160] [2021-11-04 14:14:42,072 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299294,299307] [2021-11-04 14:14:42,073 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299445,299458] [2021-11-04 14:14:42,074 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299596,299609] [2021-11-04 14:14:42,074 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299744,299757] [2021-11-04 14:14:42,074 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299910,299923] [2021-11-04 14:14:42,074 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300079,300092] [2021-11-04 14:14:42,075 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300246,300259] [2021-11-04 14:14:42,075 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300414,300427] [2021-11-04 14:14:42,075 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300564,300577] [2021-11-04 14:14:42,076 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300711,300724] [2021-11-04 14:14:42,076 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300872,300885] [2021-11-04 14:14:42,076 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[301042,301055] [2021-11-04 14:14:42,077 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[301204,301217] [2021-11-04 14:14:42,080 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 14:14:42,103 INFO L203 MainTranslator]: Completed pre-run [2021-11-04 14:14:42,277 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[287816,287829] [2021-11-04 14:14:42,278 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[287961,287974] [2021-11-04 14:14:42,278 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288107,288120] [2021-11-04 14:14:42,279 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288272,288285] [2021-11-04 14:14:42,279 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288430,288443] [2021-11-04 14:14:42,279 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288588,288601] [2021-11-04 14:14:42,280 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288746,288759] [2021-11-04 14:14:42,281 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288906,288919] [2021-11-04 14:14:42,284 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289065,289078] [2021-11-04 14:14:42,285 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289204,289217] [2021-11-04 14:14:42,285 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289346,289359] [2021-11-04 14:14:42,286 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289495,289508] [2021-11-04 14:14:42,286 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289634,289647] [2021-11-04 14:14:42,286 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289789,289802] [2021-11-04 14:14:42,287 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289949,289962] [2021-11-04 14:14:42,287 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290100,290113] [2021-11-04 14:14:42,287 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290251,290264] [2021-11-04 14:14:42,287 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290403,290416] [2021-11-04 14:14:42,288 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290552,290565] [2021-11-04 14:14:42,288 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290700,290713] [2021-11-04 14:14:42,288 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290857,290870] [2021-11-04 14:14:42,288 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291006,291019] [2021-11-04 14:14:42,289 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291162,291175] [2021-11-04 14:14:42,289 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291315,291328] [2021-11-04 14:14:42,290 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291461,291474] [2021-11-04 14:14:42,290 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291604,291617] [2021-11-04 14:14:42,290 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291756,291769] [2021-11-04 14:14:42,290 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291902,291915] [2021-11-04 14:14:42,291 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292047,292060] [2021-11-04 14:14:42,291 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292201,292214] [2021-11-04 14:14:42,291 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292352,292365] [2021-11-04 14:14:42,291 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292507,292520] [2021-11-04 14:14:42,292 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292659,292672] [2021-11-04 14:14:42,292 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292814,292827] [2021-11-04 14:14:42,293 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292978,292991] [2021-11-04 14:14:42,294 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293134,293147] [2021-11-04 14:14:42,294 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293298,293311] [2021-11-04 14:14:42,294 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293440,293453] [2021-11-04 14:14:42,294 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293598,293611] [2021-11-04 14:14:42,295 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293765,293778] [2021-11-04 14:14:42,296 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293924,293937] [2021-11-04 14:14:42,296 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294083,294096] [2021-11-04 14:14:42,296 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294232,294245] [2021-11-04 14:14:42,296 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294379,294392] [2021-11-04 14:14:42,297 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294518,294531] [2021-11-04 14:14:42,297 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294681,294694] [2021-11-04 14:14:42,297 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294847,294860] [2021-11-04 14:14:42,297 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295011,295024] [2021-11-04 14:14:42,298 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295176,295189] [2021-11-04 14:14:42,298 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295341,295354] [2021-11-04 14:14:42,298 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295507,295520] [2021-11-04 14:14:42,299 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295672,295685] [2021-11-04 14:14:42,299 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295839,295852] [2021-11-04 14:14:42,299 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295999,296012] [2021-11-04 14:14:42,299 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296161,296174] [2021-11-04 14:14:42,300 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296320,296333] [2021-11-04 14:14:42,300 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296466,296479] [2021-11-04 14:14:42,300 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296609,296622] [2021-11-04 14:14:42,301 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296753,296766] [2021-11-04 14:14:42,301 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296896,296909] [2021-11-04 14:14:42,301 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297040,297053] [2021-11-04 14:14:42,302 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297181,297194] [2021-11-04 14:14:42,302 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297319,297332] [2021-11-04 14:14:42,303 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297477,297490] [2021-11-04 14:14:42,304 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297636,297649] [2021-11-04 14:14:42,305 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297792,297805] [2021-11-04 14:14:42,306 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297941,297954] [2021-11-04 14:14:42,306 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298093,298106] [2021-11-04 14:14:42,307 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298244,298257] [2021-11-04 14:14:42,307 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298393,298406] [2021-11-04 14:14:42,308 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298545,298558] [2021-11-04 14:14:42,311 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298693,298706] [2021-11-04 14:14:42,312 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298846,298859] [2021-11-04 14:14:42,312 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298997,299010] [2021-11-04 14:14:42,315 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299147,299160] [2021-11-04 14:14:42,316 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299294,299307] [2021-11-04 14:14:42,316 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299445,299458] [2021-11-04 14:14:42,316 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299596,299609] [2021-11-04 14:14:42,317 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299744,299757] [2021-11-04 14:14:42,318 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299910,299923] [2021-11-04 14:14:42,318 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300079,300092] [2021-11-04 14:14:42,319 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300246,300259] [2021-11-04 14:14:42,319 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300414,300427] [2021-11-04 14:14:42,319 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300564,300577] [2021-11-04 14:14:42,319 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300711,300724] [2021-11-04 14:14:42,320 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300872,300885] [2021-11-04 14:14:42,320 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[301042,301055] [2021-11-04 14:14:42,320 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[301204,301217] [2021-11-04 14:14:42,322 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 14:14:42,448 INFO L208 MainTranslator]: Completed translation [2021-11-04 14:14:42,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 02:14:42 WrapperNode [2021-11-04 14:14:42,449 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-04 14:14:42,450 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-04 14:14:42,450 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-04 14:14:42,450 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-04 14:14:42,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 02:14:42" (1/1) ... [2021-11-04 14:14:42,522 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 02:14:42" (1/1) ... [2021-11-04 14:14:42,733 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-04 14:14:42,734 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-04 14:14:42,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-04 14:14:42,735 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-04 14:14:42,740 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 02:14:42" (1/1) ... [2021-11-04 14:14:42,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 02:14:42" (1/1) ... [2021-11-04 14:14:42,788 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 02:14:42" (1/1) ... [2021-11-04 14:14:42,789 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 02:14:42" (1/1) ... [2021-11-04 14:14:42,872 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 02:14:42" (1/1) ... [2021-11-04 14:14:42,890 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 02:14:42" (1/1) ... [2021-11-04 14:14:42,918 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 02:14:42" (1/1) ... [2021-11-04 14:14:42,953 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-04 14:14:42,955 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-04 14:14:42,955 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-04 14:14:42,955 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-04 14:14:42,956 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 02:14:42" (1/1) ... [2021-11-04 14:14:42,961 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 14:14:42,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 14:14:42,978 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) [2021-11-04 14:14:43,013 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 [2021-11-04 14:14:43,026 INFO L130 BoogieDeclarations]: Found specification of procedure parport_uss720_disable_irq [2021-11-04 14:14:43,027 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_uss720_disable_irq [2021-11-04 14:14:43,027 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_async [2021-11-04 14:14:43,027 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_async [2021-11-04 14:14:43,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-04 14:14:43,027 INFO L130 BoogieDeclarations]: Found specification of procedure parport_uss720_data_reverse [2021-11-04 14:14:43,027 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_uss720_data_reverse [2021-11-04 14:14:43,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-04 14:14:43,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-04 14:14:43,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-04 14:14:43,028 INFO L130 BoogieDeclarations]: Found specification of procedure submit_async_request [2021-11-04 14:14:43,028 INFO L138 BoogieDeclarations]: Found implementation of procedure submit_async_request [2021-11-04 14:14:43,028 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-04 14:14:43,028 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-04 14:14:43,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-04 14:14:43,028 INFO L130 BoogieDeclarations]: Found specification of procedure change_mode [2021-11-04 14:14:43,028 INFO L138 BoogieDeclarations]: Found implementation of procedure change_mode [2021-11-04 14:14:43,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-04 14:14:43,029 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-04 14:14:43,029 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-04 14:14:43,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-04 14:14:43,029 INFO L130 BoogieDeclarations]: Found specification of procedure parport_generic_irq [2021-11-04 14:14:43,029 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_generic_irq [2021-11-04 14:14:43,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-04 14:14:43,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-04 14:14:43,029 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-11-04 14:14:43,029 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-11-04 14:14:43,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-04 14:14:43,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-04 14:14:43,030 INFO L130 BoogieDeclarations]: Found specification of procedure set_1284_register [2021-11-04 14:14:43,030 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1284_register [2021-11-04 14:14:43,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-04 14:14:43,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-04 14:14:43,030 INFO L130 BoogieDeclarations]: Found specification of procedure async_complete [2021-11-04 14:14:43,030 INFO L138 BoogieDeclarations]: Found implementation of procedure async_complete [2021-11-04 14:14:43,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-04 14:14:43,030 INFO L130 BoogieDeclarations]: Found specification of procedure parport_uss720_enable_irq [2021-11-04 14:14:43,031 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_uss720_enable_irq [2021-11-04 14:14:43,031 INFO L130 BoogieDeclarations]: Found specification of procedure uss720_disconnect [2021-11-04 14:14:43,031 INFO L138 BoogieDeclarations]: Found implementation of procedure uss720_disconnect [2021-11-04 14:14:43,031 INFO L130 BoogieDeclarations]: Found specification of procedure parport_uss720_data_forward [2021-11-04 14:14:43,031 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_uss720_data_forward [2021-11-04 14:14:43,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-04 14:14:43,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-04 14:14:45,052 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_entry_EMGentry_5_returnLabel: main_#res := 0; [2021-11-04 14:14:45,052 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L6476: #t~ret609 := main_#res; [2021-11-04 14:14:45,052 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-04 14:14:45,105 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-04 14:14:45,105 INFO L299 CfgBuilder]: Removed 1609 assume(true) statements. [2021-11-04 14:14:45,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 02:14:45 BoogieIcfgContainer [2021-11-04 14:14:45,110 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-04 14:14:45,111 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-04 14:14:45,111 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-04 14:14:45,114 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-04 14:14:45,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 02:14:40" (1/3) ... [2021-11-04 14:14:45,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ec6035d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 02:14:45, skipping insertion in model container [2021-11-04 14:14:45,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 02:14:42" (2/3) ... [2021-11-04 14:14:45,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ec6035d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 02:14:45, skipping insertion in model container [2021-11-04 14:14:45,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 02:14:45" (3/3) ... [2021-11-04 14:14:45,118 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i [2021-11-04 14:14:45,122 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-04 14:14:45,122 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 128 error locations. [2021-11-04 14:14:45,165 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-04 14:14:45,171 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-04 14:14:45,171 INFO L340 AbstractCegarLoop]: Starting to check reachability of 128 error locations. [2021-11-04 14:14:45,207 INFO L276 IsEmpty]: Start isEmpty. Operand has 1836 states, 1580 states have (on average 1.4132911392405063) internal successors, (2233), 1719 states have internal predecessors, (2233), 114 states have call successors, (114), 14 states have call predecessors, (114), 14 states have return successors, (114), 105 states have call predecessors, (114), 114 states have call successors, (114) [2021-11-04 14:14:45,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-04 14:14:45,212 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:14:45,212 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:14:45,212 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:14:45,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:14:45,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1610906549, now seen corresponding path program 1 times [2021-11-04 14:14:45,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:14:45,225 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390419440] [2021-11-04 14:14:45,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:14:45,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:14:45,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:14:45,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:14:45,735 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:14:45,735 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390419440] [2021-11-04 14:14:45,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390419440] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:14:45,736 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:14:45,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 14:14:45,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555613529] [2021-11-04 14:14:45,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:14:45,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 14:14:45,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:14:45,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 14:14:45,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 14:14:45,772 INFO L87 Difference]: Start difference. First operand has 1836 states, 1580 states have (on average 1.4132911392405063) internal successors, (2233), 1719 states have internal predecessors, (2233), 114 states have call successors, (114), 14 states have call predecessors, (114), 14 states have return successors, (114), 105 states have call predecessors, (114), 114 states have call successors, (114) Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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) [2021-11-04 14:14:50,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:14:50,931 INFO L93 Difference]: Finished difference Result 3579 states and 4917 transitions. [2021-11-04 14:14:50,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 14:14:50,935 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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) Word has length 31 [2021-11-04 14:14:50,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:14:50,958 INFO L225 Difference]: With dead ends: 3579 [2021-11-04 14:14:50,958 INFO L226 Difference]: Without dead ends: 1749 [2021-11-04 14:14:51,042 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.74ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 14:14:51,045 INFO L933 BasicCegarLoop]: 310 mSDtfsCounter, 2460 mSDsluCounter, 2158 mSDsCounter, 0 mSdLazyCounter, 3864 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4265.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2460 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 3866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.64ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4896.00ms IncrementalHoareTripleChecker+Time [2021-11-04 14:14:51,047 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2460 Valid, 618 Invalid, 3866 Unknown, 0 Unchecked, 23.64ms Time], IncrementalHoareTripleChecker [2 Valid, 3864 Invalid, 0 Unknown, 0 Unchecked, 4896.00ms Time] [2021-11-04 14:14:51,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1749 states. [2021-11-04 14:14:51,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1749 to 1749. [2021-11-04 14:14:51,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1749 states, 1495 states have (on average 1.2923076923076924) internal successors, (1932), 1632 states have internal predecessors, (1932), 114 states have call successors, (114), 14 states have call predecessors, (114), 14 states have return successors, (114), 105 states have call predecessors, (114), 114 states have call successors, (114) [2021-11-04 14:14:51,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1749 states to 1749 states and 2160 transitions. [2021-11-04 14:14:51,168 INFO L78 Accepts]: Start accepts. Automaton has 1749 states and 2160 transitions. Word has length 31 [2021-11-04 14:14:51,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:14:51,168 INFO L470 AbstractCegarLoop]: Abstraction has 1749 states and 2160 transitions. [2021-11-04 14:14:51,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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) [2021-11-04 14:14:51,169 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states and 2160 transitions. [2021-11-04 14:14:51,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-04 14:14:51,170 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:14:51,170 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:14:51,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-04 14:14:51,170 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:14:51,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:14:51,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1892748657, now seen corresponding path program 1 times [2021-11-04 14:14:51,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:14:51,172 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429616204] [2021-11-04 14:14:51,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:14:51,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:14:51,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:14:51,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:14:51,352 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:14:51,352 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429616204] [2021-11-04 14:14:51,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429616204] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:14:51,353 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:14:51,353 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 14:14:51,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92020980] [2021-11-04 14:14:51,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:14:51,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 14:14:51,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:14:51,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 14:14:51,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 14:14:51,355 INFO L87 Difference]: Start difference. First operand 1749 states and 2160 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 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) [2021-11-04 14:14:56,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:14:56,653 INFO L93 Difference]: Finished difference Result 1749 states and 2160 transitions. [2021-11-04 14:14:56,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 14:14:56,653 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 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) Word has length 33 [2021-11-04 14:14:56,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:14:56,662 INFO L225 Difference]: With dead ends: 1749 [2021-11-04 14:14:56,663 INFO L226 Difference]: Without dead ends: 1745 [2021-11-04 14:14:56,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.06ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 14:14:56,665 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 2278 mSDsluCounter, 2002 mSDsCounter, 0 mSdLazyCounter, 3702 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4532.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2278 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 3704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.25ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5146.00ms IncrementalHoareTripleChecker+Time [2021-11-04 14:14:56,666 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2278 Valid, 456 Invalid, 3704 Unknown, 0 Unchecked, 15.25ms Time], IncrementalHoareTripleChecker [2 Valid, 3702 Invalid, 0 Unknown, 0 Unchecked, 5146.00ms Time] [2021-11-04 14:14:56,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1745 states. [2021-11-04 14:14:56,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1745 to 1745. [2021-11-04 14:14:56,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1745 states, 1493 states have (on average 1.291359678499665) internal successors, (1928), 1628 states have internal predecessors, (1928), 114 states have call successors, (114), 14 states have call predecessors, (114), 14 states have return successors, (114), 105 states have call predecessors, (114), 114 states have call successors, (114) [2021-11-04 14:14:56,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1745 states to 1745 states and 2156 transitions. [2021-11-04 14:14:56,730 INFO L78 Accepts]: Start accepts. Automaton has 1745 states and 2156 transitions. Word has length 33 [2021-11-04 14:14:56,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:14:56,730 INFO L470 AbstractCegarLoop]: Abstraction has 1745 states and 2156 transitions. [2021-11-04 14:14:56,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 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) [2021-11-04 14:14:56,731 INFO L276 IsEmpty]: Start isEmpty. Operand 1745 states and 2156 transitions. [2021-11-04 14:14:56,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-04 14:14:56,732 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:14:56,732 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:14:56,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-04 14:14:56,733 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:14:56,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:14:56,733 INFO L85 PathProgramCache]: Analyzing trace with hash 2134892851, now seen corresponding path program 1 times [2021-11-04 14:14:56,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:14:56,734 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852741866] [2021-11-04 14:14:56,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:14:56,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:14:56,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:14:56,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:14:56,866 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:14:56,866 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852741866] [2021-11-04 14:14:56,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852741866] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:14:56,867 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:14:56,867 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 14:14:56,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306167905] [2021-11-04 14:14:56,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:14:56,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 14:14:56,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:14:56,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 14:14:56,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 14:14:56,869 INFO L87 Difference]: Start difference. First operand 1745 states and 2156 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 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) [2021-11-04 14:15:02,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:15:02,078 INFO L93 Difference]: Finished difference Result 1745 states and 2156 transitions. [2021-11-04 14:15:02,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 14:15:02,079 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 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) Word has length 35 [2021-11-04 14:15:02,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:15:02,090 INFO L225 Difference]: With dead ends: 1745 [2021-11-04 14:15:02,090 INFO L226 Difference]: Without dead ends: 1741 [2021-11-04 14:15:02,091 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.09ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 14:15:02,094 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 2264 mSDsluCounter, 2006 mSDsCounter, 0 mSdLazyCounter, 3702 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4513.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2264 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 3704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.67ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5062.35ms IncrementalHoareTripleChecker+Time [2021-11-04 14:15:02,095 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2264 Valid, 456 Invalid, 3704 Unknown, 0 Unchecked, 29.67ms Time], IncrementalHoareTripleChecker [2 Valid, 3702 Invalid, 0 Unknown, 0 Unchecked, 5062.35ms Time] [2021-11-04 14:15:02,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1741 states. [2021-11-04 14:15:02,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1741 to 1741. [2021-11-04 14:15:02,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1741 states, 1491 states have (on average 1.2904091213950368) internal successors, (1924), 1624 states have internal predecessors, (1924), 114 states have call successors, (114), 14 states have call predecessors, (114), 14 states have return successors, (114), 105 states have call predecessors, (114), 114 states have call successors, (114) [2021-11-04 14:15:02,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1741 states to 1741 states and 2152 transitions. [2021-11-04 14:15:02,157 INFO L78 Accepts]: Start accepts. Automaton has 1741 states and 2152 transitions. Word has length 35 [2021-11-04 14:15:02,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:15:02,158 INFO L470 AbstractCegarLoop]: Abstraction has 1741 states and 2152 transitions. [2021-11-04 14:15:02,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 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) [2021-11-04 14:15:02,158 INFO L276 IsEmpty]: Start isEmpty. Operand 1741 states and 2152 transitions. [2021-11-04 14:15:02,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-04 14:15:02,163 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:15:02,163 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:15:02,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-04 14:15:02,164 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:15:02,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:15:02,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1362118601, now seen corresponding path program 1 times [2021-11-04 14:15:02,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:15:02,165 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243240094] [2021-11-04 14:15:02,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:15:02,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:15:02,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:15:02,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:15:02,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:15:02,318 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243240094] [2021-11-04 14:15:02,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243240094] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:15:02,320 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:15:02,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 14:15:02,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304433975] [2021-11-04 14:15:02,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:15:02,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 14:15:02,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:15:02,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 14:15:02,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 14:15:02,321 INFO L87 Difference]: Start difference. First operand 1741 states and 2152 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 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) [2021-11-04 14:15:08,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:15:08,327 INFO L93 Difference]: Finished difference Result 1741 states and 2152 transitions. [2021-11-04 14:15:08,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 14:15:08,328 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 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) Word has length 37 [2021-11-04 14:15:08,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:15:08,333 INFO L225 Difference]: With dead ends: 1741 [2021-11-04 14:15:08,333 INFO L226 Difference]: Without dead ends: 1737 [2021-11-04 14:15:08,334 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.16ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 14:15:08,334 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 2250 mSDsluCounter, 2010 mSDsCounter, 0 mSdLazyCounter, 3702 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5338.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2250 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 3704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.19ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5890.55ms IncrementalHoareTripleChecker+Time [2021-11-04 14:15:08,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2250 Valid, 456 Invalid, 3704 Unknown, 0 Unchecked, 11.19ms Time], IncrementalHoareTripleChecker [2 Valid, 3702 Invalid, 0 Unknown, 0 Unchecked, 5890.55ms Time] [2021-11-04 14:15:08,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1737 states. [2021-11-04 14:15:08,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1737 to 1737. [2021-11-04 14:15:08,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1737 states, 1489 states have (on average 1.2894560107454667) internal successors, (1920), 1620 states have internal predecessors, (1920), 114 states have call successors, (114), 14 states have call predecessors, (114), 14 states have return successors, (114), 105 states have call predecessors, (114), 114 states have call successors, (114) [2021-11-04 14:15:08,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1737 states to 1737 states and 2148 transitions. [2021-11-04 14:15:08,370 INFO L78 Accepts]: Start accepts. Automaton has 1737 states and 2148 transitions. Word has length 37 [2021-11-04 14:15:08,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:15:08,371 INFO L470 AbstractCegarLoop]: Abstraction has 1737 states and 2148 transitions. [2021-11-04 14:15:08,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 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) [2021-11-04 14:15:08,371 INFO L276 IsEmpty]: Start isEmpty. Operand 1737 states and 2148 transitions. [2021-11-04 14:15:08,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-04 14:15:08,372 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:15:08,372 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:15:08,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-04 14:15:08,372 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:15:08,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:15:08,373 INFO L85 PathProgramCache]: Analyzing trace with hash 969269147, now seen corresponding path program 1 times [2021-11-04 14:15:08,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:15:08,373 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415862572] [2021-11-04 14:15:08,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:15:08,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:15:08,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:15:08,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:15:08,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:15:08,465 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415862572] [2021-11-04 14:15:08,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415862572] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:15:08,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:15:08,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 14:15:08,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492300262] [2021-11-04 14:15:08,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:15:08,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 14:15:08,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:15:08,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 14:15:08,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 14:15:08,467 INFO L87 Difference]: Start difference. First operand 1737 states and 2148 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 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) [2021-11-04 14:15:14,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:15:14,213 INFO L93 Difference]: Finished difference Result 1737 states and 2148 transitions. [2021-11-04 14:15:14,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 14:15:14,213 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 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) Word has length 39 [2021-11-04 14:15:14,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:15:14,220 INFO L225 Difference]: With dead ends: 1737 [2021-11-04 14:15:14,221 INFO L226 Difference]: Without dead ends: 1733 [2021-11-04 14:15:14,221 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.84ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 14:15:14,222 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 2236 mSDsluCounter, 2014 mSDsCounter, 0 mSdLazyCounter, 3702 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5099.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2236 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 3704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.65ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5651.70ms IncrementalHoareTripleChecker+Time [2021-11-04 14:15:14,223 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2236 Valid, 456 Invalid, 3704 Unknown, 0 Unchecked, 20.65ms Time], IncrementalHoareTripleChecker [2 Valid, 3702 Invalid, 0 Unknown, 0 Unchecked, 5651.70ms Time] [2021-11-04 14:15:14,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1733 states. [2021-11-04 14:15:14,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1733 to 1733. [2021-11-04 14:15:14,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1733 states, 1487 states have (on average 1.288500336247478) internal successors, (1916), 1616 states have internal predecessors, (1916), 114 states have call successors, (114), 14 states have call predecessors, (114), 14 states have return successors, (114), 105 states have call predecessors, (114), 114 states have call successors, (114) [2021-11-04 14:15:14,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1733 states to 1733 states and 2144 transitions. [2021-11-04 14:15:14,267 INFO L78 Accepts]: Start accepts. Automaton has 1733 states and 2144 transitions. Word has length 39 [2021-11-04 14:15:14,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:15:14,268 INFO L470 AbstractCegarLoop]: Abstraction has 1733 states and 2144 transitions. [2021-11-04 14:15:14,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 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) [2021-11-04 14:15:14,268 INFO L276 IsEmpty]: Start isEmpty. Operand 1733 states and 2144 transitions. [2021-11-04 14:15:14,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-04 14:15:14,269 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:15:14,269 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:15:14,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-04 14:15:14,270 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:15:14,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:15:14,270 INFO L85 PathProgramCache]: Analyzing trace with hash -540033185, now seen corresponding path program 1 times [2021-11-04 14:15:14,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:15:14,270 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233686060] [2021-11-04 14:15:14,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:15:14,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:15:14,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:15:14,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:15:14,363 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:15:14,363 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233686060] [2021-11-04 14:15:14,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233686060] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:15:14,363 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:15:14,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 14:15:14,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016202000] [2021-11-04 14:15:14,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:15:14,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 14:15:14,364 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:15:14,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 14:15:14,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 14:15:14,365 INFO L87 Difference]: Start difference. First operand 1733 states and 2144 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 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) [2021-11-04 14:15:19,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:15:19,520 INFO L93 Difference]: Finished difference Result 1733 states and 2144 transitions. [2021-11-04 14:15:19,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 14:15:19,521 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 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) Word has length 41 [2021-11-04 14:15:19,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:15:19,526 INFO L225 Difference]: With dead ends: 1733 [2021-11-04 14:15:19,526 INFO L226 Difference]: Without dead ends: 1729 [2021-11-04 14:15:19,527 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.75ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 14:15:19,527 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 2222 mSDsluCounter, 2018 mSDsCounter, 0 mSdLazyCounter, 3702 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4532.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2222 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 3704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.56ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5076.58ms IncrementalHoareTripleChecker+Time [2021-11-04 14:15:19,527 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2222 Valid, 456 Invalid, 3704 Unknown, 0 Unchecked, 7.56ms Time], IncrementalHoareTripleChecker [2 Valid, 3702 Invalid, 0 Unknown, 0 Unchecked, 5076.58ms Time] [2021-11-04 14:15:19,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1729 states. [2021-11-04 14:15:19,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1729 to 1729. [2021-11-04 14:15:19,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1729 states, 1485 states have (on average 1.2875420875420875) internal successors, (1912), 1612 states have internal predecessors, (1912), 114 states have call successors, (114), 14 states have call predecessors, (114), 14 states have return successors, (114), 105 states have call predecessors, (114), 114 states have call successors, (114) [2021-11-04 14:15:19,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1729 states to 1729 states and 2140 transitions. [2021-11-04 14:15:19,565 INFO L78 Accepts]: Start accepts. Automaton has 1729 states and 2140 transitions. Word has length 41 [2021-11-04 14:15:19,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:15:19,566 INFO L470 AbstractCegarLoop]: Abstraction has 1729 states and 2140 transitions. [2021-11-04 14:15:19,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 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) [2021-11-04 14:15:19,566 INFO L276 IsEmpty]: Start isEmpty. Operand 1729 states and 2140 transitions. [2021-11-04 14:15:19,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-04 14:15:19,567 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:15:19,567 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:15:19,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-04 14:15:19,567 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:15:19,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:15:19,567 INFO L85 PathProgramCache]: Analyzing trace with hash 719372163, now seen corresponding path program 1 times [2021-11-04 14:15:19,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:15:19,568 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479390831] [2021-11-04 14:15:19,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:15:19,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:15:19,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:15:19,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:15:19,645 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:15:19,645 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479390831] [2021-11-04 14:15:19,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479390831] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:15:19,645 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:15:19,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 14:15:19,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032187673] [2021-11-04 14:15:19,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:15:19,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 14:15:19,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:15:19,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 14:15:19,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 14:15:19,646 INFO L87 Difference]: Start difference. First operand 1729 states and 2140 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 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) [2021-11-04 14:15:24,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:15:24,796 INFO L93 Difference]: Finished difference Result 1729 states and 2140 transitions. [2021-11-04 14:15:24,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 14:15:24,797 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 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) Word has length 43 [2021-11-04 14:15:24,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:15:24,805 INFO L225 Difference]: With dead ends: 1729 [2021-11-04 14:15:24,806 INFO L226 Difference]: Without dead ends: 1725 [2021-11-04 14:15:24,808 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.07ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 14:15:24,809 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 2208 mSDsluCounter, 2022 mSDsCounter, 0 mSdLazyCounter, 3702 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4489.07ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2208 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 3704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.95ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5057.10ms IncrementalHoareTripleChecker+Time [2021-11-04 14:15:24,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2208 Valid, 456 Invalid, 3704 Unknown, 0 Unchecked, 7.95ms Time], IncrementalHoareTripleChecker [2 Valid, 3702 Invalid, 0 Unknown, 0 Unchecked, 5057.10ms Time] [2021-11-04 14:15:24,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1725 states. [2021-11-04 14:15:24,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1725 to 1725. [2021-11-04 14:15:24,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1725 states, 1483 states have (on average 1.2865812542144301) internal successors, (1908), 1608 states have internal predecessors, (1908), 114 states have call successors, (114), 14 states have call predecessors, (114), 14 states have return successors, (114), 105 states have call predecessors, (114), 114 states have call successors, (114) [2021-11-04 14:15:24,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1725 states to 1725 states and 2136 transitions. [2021-11-04 14:15:24,865 INFO L78 Accepts]: Start accepts. Automaton has 1725 states and 2136 transitions. Word has length 43 [2021-11-04 14:15:24,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:15:24,866 INFO L470 AbstractCegarLoop]: Abstraction has 1725 states and 2136 transitions. [2021-11-04 14:15:24,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 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) [2021-11-04 14:15:24,866 INFO L276 IsEmpty]: Start isEmpty. Operand 1725 states and 2136 transitions. [2021-11-04 14:15:24,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-04 14:15:24,866 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:15:24,867 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:15:24,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-04 14:15:24,867 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:15:24,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:15:24,867 INFO L85 PathProgramCache]: Analyzing trace with hash -172865529, now seen corresponding path program 1 times [2021-11-04 14:15:24,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:15:24,868 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187254303] [2021-11-04 14:15:24,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:15:24,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:15:24,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:15:25,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:15:25,004 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:15:25,004 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187254303] [2021-11-04 14:15:25,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187254303] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:15:25,004 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:15:25,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 14:15:25,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452982928] [2021-11-04 14:15:25,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:15:25,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 14:15:25,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:15:25,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 14:15:25,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 14:15:25,006 INFO L87 Difference]: Start difference. First operand 1725 states and 2136 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 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) [2021-11-04 14:15:34,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:15:34,000 INFO L93 Difference]: Finished difference Result 3290 states and 4200 transitions. [2021-11-04 14:15:34,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-04 14:15:34,001 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 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) Word has length 45 [2021-11-04 14:15:34,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:15:34,016 INFO L225 Difference]: With dead ends: 3290 [2021-11-04 14:15:34,016 INFO L226 Difference]: Without dead ends: 3286 [2021-11-04 14:15:34,019 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.03ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 14:15:34,019 INFO L933 BasicCegarLoop]: 350 mSDtfsCounter, 2280 mSDsluCounter, 4239 mSDsCounter, 0 mSdLazyCounter, 5486 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7810.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2280 SdHoareTripleChecker+Valid, 1037 SdHoareTripleChecker+Invalid, 5490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.76ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8760.15ms IncrementalHoareTripleChecker+Time [2021-11-04 14:15:34,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2280 Valid, 1037 Invalid, 5490 Unknown, 0 Unchecked, 20.76ms Time], IncrementalHoareTripleChecker [4 Valid, 5486 Invalid, 0 Unknown, 0 Unchecked, 8760.15ms Time] [2021-11-04 14:15:34,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3286 states. [2021-11-04 14:15:34,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3286 to 3023. [2021-11-04 14:15:34,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3023 states, 2658 states have (on average 1.2979683972911964) internal successors, (3450), 2792 states have internal predecessors, (3450), 224 states have call successors, (224), 27 states have call predecessors, (224), 27 states have return successors, (336), 208 states have call predecessors, (336), 224 states have call successors, (336) [2021-11-04 14:15:34,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3023 states to 3023 states and 4010 transitions. [2021-11-04 14:15:34,155 INFO L78 Accepts]: Start accepts. Automaton has 3023 states and 4010 transitions. Word has length 45 [2021-11-04 14:15:34,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:15:34,156 INFO L470 AbstractCegarLoop]: Abstraction has 3023 states and 4010 transitions. [2021-11-04 14:15:34,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 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) [2021-11-04 14:15:34,156 INFO L276 IsEmpty]: Start isEmpty. Operand 3023 states and 4010 transitions. [2021-11-04 14:15:34,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-04 14:15:34,157 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:15:34,157 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:15:34,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-04 14:15:34,157 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:15:34,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:15:34,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1380171018, now seen corresponding path program 1 times [2021-11-04 14:15:34,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:15:34,159 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610781678] [2021-11-04 14:15:34,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:15:34,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:15:34,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:15:34,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:15:34,263 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:15:34,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610781678] [2021-11-04 14:15:34,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610781678] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:15:34,263 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:15:34,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 14:15:34,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720055319] [2021-11-04 14:15:34,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:15:34,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 14:15:34,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:15:34,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 14:15:34,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 14:15:34,265 INFO L87 Difference]: Start difference. First operand 3023 states and 4010 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 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) [2021-11-04 14:15:39,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:15:39,907 INFO L93 Difference]: Finished difference Result 3023 states and 4010 transitions. [2021-11-04 14:15:39,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 14:15:39,907 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 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) Word has length 47 [2021-11-04 14:15:39,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:15:39,917 INFO L225 Difference]: With dead ends: 3023 [2021-11-04 14:15:39,917 INFO L226 Difference]: Without dead ends: 3019 [2021-11-04 14:15:39,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.57ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 14:15:39,920 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 2184 mSDsluCounter, 2033 mSDsCounter, 0 mSdLazyCounter, 3710 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4893.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2184 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 3712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.58ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5487.74ms IncrementalHoareTripleChecker+Time [2021-11-04 14:15:39,920 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2184 Valid, 456 Invalid, 3712 Unknown, 0 Unchecked, 11.58ms Time], IncrementalHoareTripleChecker [2 Valid, 3710 Invalid, 0 Unknown, 0 Unchecked, 5487.74ms Time] [2021-11-04 14:15:39,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3019 states. [2021-11-04 14:15:40,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3019 to 3019. [2021-11-04 14:15:40,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3019 states, 2656 states have (on average 1.2974397590361446) internal successors, (3446), 2788 states have internal predecessors, (3446), 224 states have call successors, (224), 27 states have call predecessors, (224), 27 states have return successors, (336), 208 states have call predecessors, (336), 224 states have call successors, (336) [2021-11-04 14:15:40,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3019 states to 3019 states and 4006 transitions. [2021-11-04 14:15:40,052 INFO L78 Accepts]: Start accepts. Automaton has 3019 states and 4006 transitions. Word has length 47 [2021-11-04 14:15:40,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:15:40,053 INFO L470 AbstractCegarLoop]: Abstraction has 3019 states and 4006 transitions. [2021-11-04 14:15:40,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 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) [2021-11-04 14:15:40,053 INFO L276 IsEmpty]: Start isEmpty. Operand 3019 states and 4006 transitions. [2021-11-04 14:15:40,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-04 14:15:40,054 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:15:40,054 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:15:40,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-04 14:15:40,054 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:15:40,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:15:40,055 INFO L85 PathProgramCache]: Analyzing trace with hash -800325010, now seen corresponding path program 1 times [2021-11-04 14:15:40,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:15:40,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517361361] [2021-11-04 14:15:40,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:15:40,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:15:40,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:15:40,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:15:40,160 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:15:40,160 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517361361] [2021-11-04 14:15:40,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517361361] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:15:40,160 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:15:40,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 14:15:40,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6642830] [2021-11-04 14:15:40,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:15:40,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 14:15:40,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:15:40,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 14:15:40,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 14:15:40,162 INFO L87 Difference]: Start difference. First operand 3019 states and 4006 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 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) [2021-11-04 14:15:45,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:15:45,336 INFO L93 Difference]: Finished difference Result 3019 states and 4006 transitions. [2021-11-04 14:15:45,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 14:15:45,337 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 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) Word has length 49 [2021-11-04 14:15:45,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:15:45,346 INFO L225 Difference]: With dead ends: 3019 [2021-11-04 14:15:45,346 INFO L226 Difference]: Without dead ends: 3015 [2021-11-04 14:15:45,347 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.11ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 14:15:45,347 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 2170 mSDsluCounter, 2038 mSDsCounter, 0 mSdLazyCounter, 3710 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4475.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2170 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 3712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.46ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5058.02ms IncrementalHoareTripleChecker+Time [2021-11-04 14:15:45,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2170 Valid, 456 Invalid, 3712 Unknown, 0 Unchecked, 8.46ms Time], IncrementalHoareTripleChecker [2 Valid, 3710 Invalid, 0 Unknown, 0 Unchecked, 5058.02ms Time] [2021-11-04 14:15:45,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3015 states. [2021-11-04 14:15:45,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3015 to 3015. [2021-11-04 14:15:45,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3015 states, 2654 states have (on average 1.2969103240391862) internal successors, (3442), 2784 states have internal predecessors, (3442), 224 states have call successors, (224), 27 states have call predecessors, (224), 27 states have return successors, (336), 208 states have call predecessors, (336), 224 states have call successors, (336) [2021-11-04 14:15:45,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3015 states to 3015 states and 4002 transitions. [2021-11-04 14:15:45,473 INFO L78 Accepts]: Start accepts. Automaton has 3015 states and 4002 transitions. Word has length 49 [2021-11-04 14:15:45,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:15:45,473 INFO L470 AbstractCegarLoop]: Abstraction has 3015 states and 4002 transitions. [2021-11-04 14:15:45,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 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) [2021-11-04 14:15:45,473 INFO L276 IsEmpty]: Start isEmpty. Operand 3015 states and 4002 transitions. [2021-11-04 14:15:45,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-04 14:15:45,474 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:15:45,474 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:15:45,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-04 14:15:45,475 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:15:45,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:15:45,475 INFO L85 PathProgramCache]: Analyzing trace with hash -312967118, now seen corresponding path program 1 times [2021-11-04 14:15:45,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:15:45,475 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859448848] [2021-11-04 14:15:45,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:15:45,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:15:45,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:15:45,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:15:45,557 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:15:45,557 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859448848] [2021-11-04 14:15:45,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859448848] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:15:45,557 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:15:45,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 14:15:45,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711916817] [2021-11-04 14:15:45,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:15:45,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 14:15:45,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:15:45,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 14:15:45,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 14:15:45,559 INFO L87 Difference]: Start difference. First operand 3015 states and 4002 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 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) [2021-11-04 14:15:50,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:15:50,747 INFO L93 Difference]: Finished difference Result 3015 states and 4002 transitions. [2021-11-04 14:15:50,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 14:15:50,747 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 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) Word has length 51 [2021-11-04 14:15:50,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:15:50,756 INFO L225 Difference]: With dead ends: 3015 [2021-11-04 14:15:50,756 INFO L226 Difference]: Without dead ends: 3011 [2021-11-04 14:15:50,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.15ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 14:15:50,758 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 2156 mSDsluCounter, 2042 mSDsCounter, 0 mSdLazyCounter, 3710 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4498.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2156 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 3712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.25ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5063.11ms IncrementalHoareTripleChecker+Time [2021-11-04 14:15:50,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2156 Valid, 456 Invalid, 3712 Unknown, 0 Unchecked, 8.25ms Time], IncrementalHoareTripleChecker [2 Valid, 3710 Invalid, 0 Unknown, 0 Unchecked, 5063.11ms Time] [2021-11-04 14:15:50,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3011 states. [2021-11-04 14:15:50,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3011 to 3011. [2021-11-04 14:15:50,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3011 states, 2652 states have (on average 1.2963800904977376) internal successors, (3438), 2780 states have internal predecessors, (3438), 224 states have call successors, (224), 27 states have call predecessors, (224), 27 states have return successors, (336), 208 states have call predecessors, (336), 224 states have call successors, (336) [2021-11-04 14:15:50,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3011 states to 3011 states and 3998 transitions. [2021-11-04 14:15:50,890 INFO L78 Accepts]: Start accepts. Automaton has 3011 states and 3998 transitions. Word has length 51 [2021-11-04 14:15:50,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:15:50,890 INFO L470 AbstractCegarLoop]: Abstraction has 3011 states and 3998 transitions. [2021-11-04 14:15:50,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 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) [2021-11-04 14:15:50,891 INFO L276 IsEmpty]: Start isEmpty. Operand 3011 states and 3998 transitions. [2021-11-04 14:15:50,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-04 14:15:50,891 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:15:50,891 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:15:50,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-04 14:15:50,892 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:15:50,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:15:50,892 INFO L85 PathProgramCache]: Analyzing trace with hash -113467818, now seen corresponding path program 1 times [2021-11-04 14:15:50,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:15:50,892 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626951912] [2021-11-04 14:15:50,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:15:50,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:15:50,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:15:50,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:15:50,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:15:50,986 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626951912] [2021-11-04 14:15:50,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626951912] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:15:50,986 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:15:50,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 14:15:50,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109958529] [2021-11-04 14:15:50,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:15:50,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 14:15:50,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:15:50,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 14:15:50,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 14:15:50,988 INFO L87 Difference]: Start difference. First operand 3011 states and 3998 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 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) [2021-11-04 14:15:55,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:15:55,982 INFO L93 Difference]: Finished difference Result 3011 states and 3998 transitions. [2021-11-04 14:15:55,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 14:15:55,983 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 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) Word has length 53 [2021-11-04 14:15:55,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:15:55,992 INFO L225 Difference]: With dead ends: 3011 [2021-11-04 14:15:55,993 INFO L226 Difference]: Without dead ends: 3007 [2021-11-04 14:15:55,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.04ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 14:15:55,995 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 2142 mSDsluCounter, 2046 mSDsCounter, 0 mSdLazyCounter, 3710 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4291.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2142 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 3712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.95ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4871.75ms IncrementalHoareTripleChecker+Time [2021-11-04 14:15:55,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2142 Valid, 456 Invalid, 3712 Unknown, 0 Unchecked, 7.95ms Time], IncrementalHoareTripleChecker [2 Valid, 3710 Invalid, 0 Unknown, 0 Unchecked, 4871.75ms Time] [2021-11-04 14:15:55,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3007 states. [2021-11-04 14:15:56,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3007 to 3007. [2021-11-04 14:15:56,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3007 states, 2650 states have (on average 1.2958490566037735) internal successors, (3434), 2776 states have internal predecessors, (3434), 224 states have call successors, (224), 27 states have call predecessors, (224), 27 states have return successors, (336), 208 states have call predecessors, (336), 224 states have call successors, (336) [2021-11-04 14:15:56,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3007 states to 3007 states and 3994 transitions. [2021-11-04 14:15:56,109 INFO L78 Accepts]: Start accepts. Automaton has 3007 states and 3994 transitions. Word has length 53 [2021-11-04 14:15:56,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:15:56,109 INFO L470 AbstractCegarLoop]: Abstraction has 3007 states and 3994 transitions. [2021-11-04 14:15:56,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 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) [2021-11-04 14:15:56,110 INFO L276 IsEmpty]: Start isEmpty. Operand 3007 states and 3994 transitions. [2021-11-04 14:15:56,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-04 14:15:56,110 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:15:56,111 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:15:56,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-04 14:15:56,111 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting submit_async_requestErr0ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:15:56,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:15:56,111 INFO L85 PathProgramCache]: Analyzing trace with hash -245003035, now seen corresponding path program 1 times [2021-11-04 14:15:56,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:15:56,112 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477576966] [2021-11-04 14:15:56,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:15:56,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:15:56,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:15:56,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:15:56,300 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:15:56,300 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477576966] [2021-11-04 14:15:56,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477576966] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:15:56,301 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:15:56,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-04 14:15:56,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797067432] [2021-11-04 14:15:56,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:15:56,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-04 14:15:56,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:15:56,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-04 14:15:56,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-04 14:15:56,302 INFO L87 Difference]: Start difference. First operand 3007 states and 3994 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 14:16:03,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:16:03,580 INFO L93 Difference]: Finished difference Result 5870 states and 8194 transitions. [2021-11-04 14:16:03,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-04 14:16:03,580 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-11-04 14:16:03,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:16:03,590 INFO L225 Difference]: With dead ends: 5870 [2021-11-04 14:16:03,590 INFO L226 Difference]: Without dead ends: 3011 [2021-11-04 14:16:03,615 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.02ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-04 14:16:03,616 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 2393 mSDsluCounter, 3922 mSDsCounter, 0 mSdLazyCounter, 5330 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6266.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2393 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 5351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.19ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 5330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7078.68ms IncrementalHoareTripleChecker+Time [2021-11-04 14:16:03,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2393 Valid, 735 Invalid, 5351 Unknown, 0 Unchecked, 12.19ms Time], IncrementalHoareTripleChecker [21 Valid, 5330 Invalid, 0 Unknown, 0 Unchecked, 7078.68ms Time] [2021-11-04 14:16:03,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3011 states. [2021-11-04 14:16:03,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3011 to 3009. [2021-11-04 14:16:03,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3009 states, 2651 states have (on average 1.2927197284043757) internal successors, (3427), 2778 states have internal predecessors, (3427), 224 states have call successors, (224), 27 states have call predecessors, (224), 28 states have return successors, (356), 208 states have call predecessors, (356), 224 states have call successors, (356) [2021-11-04 14:16:03,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3009 states to 3009 states and 4007 transitions. [2021-11-04 14:16:03,716 INFO L78 Accepts]: Start accepts. Automaton has 3009 states and 4007 transitions. Word has length 55 [2021-11-04 14:16:03,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:16:03,716 INFO L470 AbstractCegarLoop]: Abstraction has 3009 states and 4007 transitions. [2021-11-04 14:16:03,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 14:16:03,716 INFO L276 IsEmpty]: Start isEmpty. Operand 3009 states and 4007 transitions. [2021-11-04 14:16:03,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-04 14:16:03,717 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:16:03,717 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:16:03,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-04 14:16:03,717 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting submit_async_requestErr0ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:16:03,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:16:03,718 INFO L85 PathProgramCache]: Analyzing trace with hash -244943453, now seen corresponding path program 1 times [2021-11-04 14:16:03,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:16:03,718 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506118408] [2021-11-04 14:16:03,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:16:03,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:16:03,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:16:03,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:16:03,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:16:03,800 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506118408] [2021-11-04 14:16:03,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506118408] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:16:03,800 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:16:03,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-04 14:16:03,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999201004] [2021-11-04 14:16:03,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:16:03,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 14:16:03,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:16:03,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 14:16:03,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 14:16:03,801 INFO L87 Difference]: Start difference. First operand 3009 states and 4007 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 14:16:11,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:16:11,284 INFO L93 Difference]: Finished difference Result 3011 states and 4028 transitions. [2021-11-04 14:16:11,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-04 14:16:11,284 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-11-04 14:16:11,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:16:11,290 INFO L225 Difference]: With dead ends: 3011 [2021-11-04 14:16:11,290 INFO L226 Difference]: Without dead ends: 3003 [2021-11-04 14:16:11,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.07ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 14:16:11,292 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 306 mSDsluCounter, 3931 mSDsCounter, 0 mSdLazyCounter, 5326 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6509.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 5344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.31ms SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 5326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7340.70ms IncrementalHoareTripleChecker+Time [2021-11-04 14:16:11,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [306 Valid, 738 Invalid, 5344 Unknown, 0 Unchecked, 12.31ms Time], IncrementalHoareTripleChecker [18 Valid, 5326 Invalid, 0 Unknown, 0 Unchecked, 7340.70ms Time] [2021-11-04 14:16:11,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3003 states. [2021-11-04 14:16:11,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3003 to 3001. [2021-11-04 14:16:11,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3001 states, 2647 states have (on average 1.2901397808840196) internal successors, (3415), 2770 states have internal predecessors, (3415), 224 states have call successors, (224), 27 states have call predecessors, (224), 28 states have return successors, (356), 208 states have call predecessors, (356), 224 states have call successors, (356) [2021-11-04 14:16:11,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3001 states to 3001 states and 3995 transitions. [2021-11-04 14:16:11,383 INFO L78 Accepts]: Start accepts. Automaton has 3001 states and 3995 transitions. Word has length 55 [2021-11-04 14:16:11,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:16:11,383 INFO L470 AbstractCegarLoop]: Abstraction has 3001 states and 3995 transitions. [2021-11-04 14:16:11,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 14:16:11,384 INFO L276 IsEmpty]: Start isEmpty. Operand 3001 states and 3995 transitions. [2021-11-04 14:16:11,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-04 14:16:11,385 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:16:11,385 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:16:11,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-04 14:16:11,386 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:16:11,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:16:11,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1668168486, now seen corresponding path program 1 times [2021-11-04 14:16:11,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:16:11,386 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179726286] [2021-11-04 14:16:11,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:16:11,387 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:16:11,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:16:11,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:16:11,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:16:11,490 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179726286] [2021-11-04 14:16:11,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179726286] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:16:11,490 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:16:11,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 14:16:11,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685997364] [2021-11-04 14:16:11,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:16:11,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 14:16:11,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:16:11,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 14:16:11,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 14:16:11,492 INFO L87 Difference]: Start difference. First operand 3001 states and 3995 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 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) [2021-11-04 14:16:16,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:16:16,772 INFO L93 Difference]: Finished difference Result 3001 states and 3995 transitions. [2021-11-04 14:16:16,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 14:16:16,773 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 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) Word has length 55 [2021-11-04 14:16:16,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:16:16,779 INFO L225 Difference]: With dead ends: 3001 [2021-11-04 14:16:16,779 INFO L226 Difference]: Without dead ends: 2997 [2021-11-04 14:16:16,781 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.90ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 14:16:16,782 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 2116 mSDsluCounter, 2038 mSDsCounter, 0 mSdLazyCounter, 3686 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4523.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2116 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 3688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.58ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5132.04ms IncrementalHoareTripleChecker+Time [2021-11-04 14:16:16,782 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2116 Valid, 456 Invalid, 3688 Unknown, 0 Unchecked, 9.58ms Time], IncrementalHoareTripleChecker [2 Valid, 3686 Invalid, 0 Unknown, 0 Unchecked, 5132.04ms Time] [2021-11-04 14:16:16,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2997 states. [2021-11-04 14:16:16,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2997 to 2997. [2021-11-04 14:16:16,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2997 states, 2645 states have (on average 1.2896030245746692) internal successors, (3411), 2766 states have internal predecessors, (3411), 224 states have call successors, (224), 27 states have call predecessors, (224), 28 states have return successors, (356), 208 states have call predecessors, (356), 224 states have call successors, (356) [2021-11-04 14:16:16,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2997 states to 2997 states and 3991 transitions. [2021-11-04 14:16:16,876 INFO L78 Accepts]: Start accepts. Automaton has 2997 states and 3991 transitions. Word has length 55 [2021-11-04 14:16:16,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:16:16,876 INFO L470 AbstractCegarLoop]: Abstraction has 2997 states and 3991 transitions. [2021-11-04 14:16:16,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 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) [2021-11-04 14:16:16,877 INFO L276 IsEmpty]: Start isEmpty. Operand 2997 states and 3991 transitions. [2021-11-04 14:16:16,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-04 14:16:16,881 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:16:16,881 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:16:16,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-04 14:16:16,881 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting submit_async_requestErr1ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:16:16,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:16:16,882 INFO L85 PathProgramCache]: Analyzing trace with hash 43563833, now seen corresponding path program 1 times [2021-11-04 14:16:16,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:16:16,882 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282631485] [2021-11-04 14:16:16,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:16:16,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:16:16,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:16:16,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:16:16,956 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:16:16,956 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282631485] [2021-11-04 14:16:16,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282631485] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:16:16,957 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:16:16,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 14:16:16,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719513478] [2021-11-04 14:16:16,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:16:16,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 14:16:16,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:16:16,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 14:16:16,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 14:16:16,959 INFO L87 Difference]: Start difference. First operand 2997 states and 3991 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 14:16:20,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:16:20,147 INFO L93 Difference]: Finished difference Result 5892 states and 8199 transitions. [2021-11-04 14:16:20,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 14:16:20,148 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-04 14:16:20,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:16:20,156 INFO L225 Difference]: With dead ends: 5892 [2021-11-04 14:16:20,156 INFO L226 Difference]: Without dead ends: 2978 [2021-11-04 14:16:20,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.15ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 14:16:20,180 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 2029 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1856 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2650.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2029 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 1860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.12ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3050.91ms IncrementalHoareTripleChecker+Time [2021-11-04 14:16:20,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2029 Valid, 228 Invalid, 1860 Unknown, 0 Unchecked, 3.12ms Time], IncrementalHoareTripleChecker [4 Valid, 1856 Invalid, 0 Unknown, 0 Unchecked, 3050.91ms Time] [2021-11-04 14:16:20,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2978 states. [2021-11-04 14:16:20,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2978 to 2978. [2021-11-04 14:16:20,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2978 states, 2631 states have (on average 1.2843025465602433) internal successors, (3379), 2747 states have internal predecessors, (3379), 224 states have call successors, (224), 27 states have call predecessors, (224), 28 states have return successors, (356), 208 states have call predecessors, (356), 224 states have call successors, (356) [2021-11-04 14:16:20,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2978 states to 2978 states and 3959 transitions. [2021-11-04 14:16:20,276 INFO L78 Accepts]: Start accepts. Automaton has 2978 states and 3959 transitions. Word has length 58 [2021-11-04 14:16:20,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:16:20,277 INFO L470 AbstractCegarLoop]: Abstraction has 2978 states and 3959 transitions. [2021-11-04 14:16:20,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 14:16:20,277 INFO L276 IsEmpty]: Start isEmpty. Operand 2978 states and 3959 transitions. [2021-11-04 14:16:20,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-04 14:16:20,277 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:16:20,278 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:16:20,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-04 14:16:20,278 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:16:20,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:16:20,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1086891074, now seen corresponding path program 1 times [2021-11-04 14:16:20,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:16:20,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420591373] [2021-11-04 14:16:20,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:16:20,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:16:20,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:16:20,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:16:20,395 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:16:20,395 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420591373] [2021-11-04 14:16:20,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420591373] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:16:20,395 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:16:20,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 14:16:20,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999578523] [2021-11-04 14:16:20,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:16:20,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 14:16:20,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:16:20,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 14:16:20,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 14:16:20,397 INFO L87 Difference]: Start difference. First operand 2978 states and 3959 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 states have internal predecessors, (57), 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) [2021-11-04 14:16:22,250 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 14:16:27,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:16:27,114 INFO L93 Difference]: Finished difference Result 2978 states and 3959 transitions. [2021-11-04 14:16:27,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 14:16:27,115 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 states have internal predecessors, (57), 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) Word has length 57 [2021-11-04 14:16:27,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:16:27,121 INFO L225 Difference]: With dead ends: 2978 [2021-11-04 14:16:27,121 INFO L226 Difference]: Without dead ends: 2974 [2021-11-04 14:16:27,123 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.87ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 14:16:27,123 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 2082 mSDsluCounter, 2022 mSDsCounter, 0 mSdLazyCounter, 3646 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5833.60ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2082 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 3648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.40ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6572.76ms IncrementalHoareTripleChecker+Time [2021-11-04 14:16:27,123 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2082 Valid, 456 Invalid, 3648 Unknown, 0 Unchecked, 8.40ms Time], IncrementalHoareTripleChecker [2 Valid, 3646 Invalid, 0 Unknown, 0 Unchecked, 6572.76ms Time] [2021-11-04 14:16:27,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2974 states. [2021-11-04 14:16:27,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2974 to 2974. [2021-11-04 14:16:27,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2974 states, 2629 states have (on average 1.283758082921263) internal successors, (3375), 2743 states have internal predecessors, (3375), 224 states have call successors, (224), 27 states have call predecessors, (224), 28 states have return successors, (356), 208 states have call predecessors, (356), 224 states have call successors, (356) [2021-11-04 14:16:27,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2974 states to 2974 states and 3955 transitions. [2021-11-04 14:16:27,255 INFO L78 Accepts]: Start accepts. Automaton has 2974 states and 3955 transitions. Word has length 57 [2021-11-04 14:16:27,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:16:27,255 INFO L470 AbstractCegarLoop]: Abstraction has 2974 states and 3955 transitions. [2021-11-04 14:16:27,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 states have internal predecessors, (57), 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) [2021-11-04 14:16:27,256 INFO L276 IsEmpty]: Start isEmpty. Operand 2974 states and 3955 transitions. [2021-11-04 14:16:27,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-04 14:16:27,256 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:16:27,256 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:16:27,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-04 14:16:27,257 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:16:27,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:16:27,257 INFO L85 PathProgramCache]: Analyzing trace with hash 166502178, now seen corresponding path program 1 times [2021-11-04 14:16:27,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:16:27,257 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020305410] [2021-11-04 14:16:27,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:16:27,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:16:27,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:16:27,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-04 14:16:27,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:16:27,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:16:27,450 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:16:27,450 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020305410] [2021-11-04 14:16:27,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020305410] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:16:27,450 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:16:27,451 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-04 14:16:27,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142428797] [2021-11-04 14:16:27,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:16:27,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-04 14:16:27,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:16:27,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-04 14:16:27,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-04 14:16:27,452 INFO L87 Difference]: Start difference. First operand 2974 states and 3955 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-04 14:16:45,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:16:45,754 INFO L93 Difference]: Finished difference Result 6656 states and 9026 transitions. [2021-11-04 14:16:45,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-04 14:16:45,754 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 58 [2021-11-04 14:16:45,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:16:45,766 INFO L225 Difference]: With dead ends: 6656 [2021-11-04 14:16:45,767 INFO L226 Difference]: Without dead ends: 3847 [2021-11-04 14:16:45,778 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 59.31ms TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-04 14:16:45,778 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 554 mSDsluCounter, 8647 mSDsCounter, 0 mSdLazyCounter, 11160 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16195.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 589 SdHoareTripleChecker+Valid, 1187 SdHoareTripleChecker+Invalid, 11351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 33.44ms SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 11160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17954.85ms IncrementalHoareTripleChecker+Time [2021-11-04 14:16:45,779 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [589 Valid, 1187 Invalid, 11351 Unknown, 0 Unchecked, 33.44ms Time], IncrementalHoareTripleChecker [191 Valid, 11160 Invalid, 0 Unknown, 0 Unchecked, 17954.85ms Time] [2021-11-04 14:16:45,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3847 states. [2021-11-04 14:16:45,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3847 to 3070. [2021-11-04 14:16:45,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3070 states, 2717 states have (on average 1.276775855723224) internal successors, (3469), 2801 states have internal predecessors, (3469), 224 states have call successors, (224), 27 states have call predecessors, (224), 36 states have return successors, (420), 246 states have call predecessors, (420), 224 states have call successors, (420) [2021-11-04 14:16:45,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3070 states to 3070 states and 4113 transitions. [2021-11-04 14:16:45,936 INFO L78 Accepts]: Start accepts. Automaton has 3070 states and 4113 transitions. Word has length 58 [2021-11-04 14:16:45,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:16:45,936 INFO L470 AbstractCegarLoop]: Abstraction has 3070 states and 4113 transitions. [2021-11-04 14:16:45,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-04 14:16:45,937 INFO L276 IsEmpty]: Start isEmpty. Operand 3070 states and 4113 transitions. [2021-11-04 14:16:45,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-04 14:16:45,937 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:16:45,938 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:16:45,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-04 14:16:45,938 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:16:45,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:16:45,938 INFO L85 PathProgramCache]: Analyzing trace with hash -825046270, now seen corresponding path program 1 times [2021-11-04 14:16:45,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:16:45,939 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940180241] [2021-11-04 14:16:45,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:16:45,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:16:45,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:16:46,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:16:46,032 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:16:46,032 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940180241] [2021-11-04 14:16:46,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940180241] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:16:46,032 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:16:46,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 14:16:46,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648896484] [2021-11-04 14:16:46,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:16:46,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 14:16:46,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:16:46,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 14:16:46,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 14:16:46,034 INFO L87 Difference]: Start difference. First operand 3070 states and 4113 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 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) [2021-11-04 14:16:52,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:16:52,679 INFO L93 Difference]: Finished difference Result 3070 states and 4113 transitions. [2021-11-04 14:16:52,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 14:16:52,680 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 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) Word has length 59 [2021-11-04 14:16:52,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:16:52,689 INFO L225 Difference]: With dead ends: 3070 [2021-11-04 14:16:52,690 INFO L226 Difference]: Without dead ends: 3066 [2021-11-04 14:16:52,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.83ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 14:16:52,692 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 2068 mSDsluCounter, 2026 mSDsCounter, 0 mSdLazyCounter, 3646 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5653.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2068 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 3648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.96ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6443.59ms IncrementalHoareTripleChecker+Time [2021-11-04 14:16:52,693 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2068 Valid, 456 Invalid, 3648 Unknown, 0 Unchecked, 9.96ms Time], IncrementalHoareTripleChecker [2 Valid, 3646 Invalid, 0 Unknown, 0 Unchecked, 6443.59ms Time] [2021-11-04 14:16:52,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3066 states. [2021-11-04 14:16:52,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3066 to 3066. [2021-11-04 14:16:52,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3066 states, 2715 states have (on average 1.276243093922652) internal successors, (3465), 2797 states have internal predecessors, (3465), 224 states have call successors, (224), 27 states have call predecessors, (224), 36 states have return successors, (420), 246 states have call predecessors, (420), 224 states have call successors, (420) [2021-11-04 14:16:52,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3066 states to 3066 states and 4109 transitions. [2021-11-04 14:16:52,846 INFO L78 Accepts]: Start accepts. Automaton has 3066 states and 4109 transitions. Word has length 59 [2021-11-04 14:16:52,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:16:52,846 INFO L470 AbstractCegarLoop]: Abstraction has 3066 states and 4109 transitions. [2021-11-04 14:16:52,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 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) [2021-11-04 14:16:52,847 INFO L276 IsEmpty]: Start isEmpty. Operand 3066 states and 4109 transitions. [2021-11-04 14:16:52,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-04 14:16:52,848 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:16:52,848 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:16:52,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-04 14:16:52,849 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:16:52,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:16:52,849 INFO L85 PathProgramCache]: Analyzing trace with hash -453684406, now seen corresponding path program 1 times [2021-11-04 14:16:52,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:16:52,850 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877251486] [2021-11-04 14:16:52,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:16:52,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:16:53,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:16:53,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:16:53,182 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:16:53,182 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877251486] [2021-11-04 14:16:53,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877251486] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:16:53,182 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:16:53,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-04 14:16:53,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623139848] [2021-11-04 14:16:53,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:16:53,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-04 14:16:53,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:16:53,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-04 14:16:53,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-04 14:16:53,183 INFO L87 Difference]: Start difference. First operand 3066 states and 4109 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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) [2021-11-04 14:17:50,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:17:50,783 INFO L93 Difference]: Finished difference Result 11212 states and 15158 transitions. [2021-11-04 14:17:50,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-04 14:17:50,785 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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) Word has length 60 [2021-11-04 14:17:50,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:17:50,810 INFO L225 Difference]: With dead ends: 11212 [2021-11-04 14:17:50,810 INFO L226 Difference]: Without dead ends: 8545 [2021-11-04 14:17:50,821 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 111.63ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-04 14:17:50,822 INFO L933 BasicCegarLoop]: 528 mSDtfsCounter, 11205 mSDsluCounter, 14875 mSDsCounter, 0 mSdLazyCounter, 15929 mSolverCounterSat, 689 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41934.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11278 SdHoareTripleChecker+Valid, 2410 SdHoareTripleChecker+Invalid, 16618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 87.09ms SdHoareTripleChecker+Time, 689 IncrementalHoareTripleChecker+Valid, 15929 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 56446.03ms IncrementalHoareTripleChecker+Time [2021-11-04 14:17:50,822 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11278 Valid, 2410 Invalid, 16618 Unknown, 0 Unchecked, 87.09ms Time], IncrementalHoareTripleChecker [689 Valid, 15929 Invalid, 0 Unknown, 0 Unchecked, 56446.03ms Time] [2021-11-04 14:17:50,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8545 states. [2021-11-04 14:17:51,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8545 to 3100. [2021-11-04 14:17:51,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3100 states, 2749 states have (on average 1.2753728628592216) internal successors, (3506), 2831 states have internal predecessors, (3506), 224 states have call successors, (224), 27 states have call predecessors, (224), 36 states have return successors, (420), 246 states have call predecessors, (420), 224 states have call successors, (420) [2021-11-04 14:17:51,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3100 states to 3100 states and 4150 transitions. [2021-11-04 14:17:51,102 INFO L78 Accepts]: Start accepts. Automaton has 3100 states and 4150 transitions. Word has length 60 [2021-11-04 14:17:51,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:17:51,102 INFO L470 AbstractCegarLoop]: Abstraction has 3100 states and 4150 transitions. [2021-11-04 14:17:51,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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) [2021-11-04 14:17:51,102 INFO L276 IsEmpty]: Start isEmpty. Operand 3100 states and 4150 transitions. [2021-11-04 14:17:51,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-04 14:17:51,103 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:17:51,103 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:17:51,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-04 14:17:51,104 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:17:51,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:17:51,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1699707558, now seen corresponding path program 1 times [2021-11-04 14:17:51,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:17:51,105 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516023782] [2021-11-04 14:17:51,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:17:51,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:17:51,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:17:51,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:17:51,199 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:17:51,199 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516023782] [2021-11-04 14:17:51,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516023782] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:17:51,200 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:17:51,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 14:17:51,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124755571] [2021-11-04 14:17:51,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:17:51,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 14:17:51,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:17:51,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 14:17:51,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 14:17:51,202 INFO L87 Difference]: Start difference. First operand 3100 states and 4150 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 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) [2021-11-04 14:17:57,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:17:57,851 INFO L93 Difference]: Finished difference Result 3100 states and 4150 transitions. [2021-11-04 14:17:57,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 14:17:57,852 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 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) Word has length 61 [2021-11-04 14:17:57,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:17:57,864 INFO L225 Difference]: With dead ends: 3100 [2021-11-04 14:17:57,864 INFO L226 Difference]: Without dead ends: 3096 [2021-11-04 14:17:57,865 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.26ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 14:17:57,866 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 2054 mSDsluCounter, 2030 mSDsCounter, 0 mSdLazyCounter, 3646 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5442.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2054 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 3648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.79ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6362.85ms IncrementalHoareTripleChecker+Time [2021-11-04 14:17:57,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2054 Valid, 456 Invalid, 3648 Unknown, 0 Unchecked, 10.79ms Time], IncrementalHoareTripleChecker [2 Valid, 3646 Invalid, 0 Unknown, 0 Unchecked, 6362.85ms Time] [2021-11-04 14:17:57,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3096 states. [2021-11-04 14:17:58,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3096 to 3096. [2021-11-04 14:17:58,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3096 states, 2747 states have (on average 1.2748452857662904) internal successors, (3502), 2827 states have internal predecessors, (3502), 224 states have call successors, (224), 27 states have call predecessors, (224), 36 states have return successors, (420), 246 states have call predecessors, (420), 224 states have call successors, (420) [2021-11-04 14:17:58,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3096 states to 3096 states and 4146 transitions. [2021-11-04 14:17:58,076 INFO L78 Accepts]: Start accepts. Automaton has 3096 states and 4146 transitions. Word has length 61 [2021-11-04 14:17:58,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:17:58,077 INFO L470 AbstractCegarLoop]: Abstraction has 3096 states and 4146 transitions. [2021-11-04 14:17:58,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 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) [2021-11-04 14:17:58,077 INFO L276 IsEmpty]: Start isEmpty. Operand 3096 states and 4146 transitions. [2021-11-04 14:17:58,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-04 14:17:58,078 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:17:58,079 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:17:58,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-04 14:17:58,079 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:17:58,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:17:58,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1221097211, now seen corresponding path program 1 times [2021-11-04 14:17:58,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:17:58,080 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112977129] [2021-11-04 14:17:58,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:17:58,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:17:58,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:17:58,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:17:58,202 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:17:58,202 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112977129] [2021-11-04 14:17:58,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112977129] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:17:58,202 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:17:58,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 14:17:58,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325872644] [2021-11-04 14:17:58,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:17:58,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 14:17:58,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:17:58,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 14:17:58,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 14:17:58,204 INFO L87 Difference]: Start difference. First operand 3096 states and 4146 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 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) [2021-11-04 14:18:06,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:18:06,303 INFO L93 Difference]: Finished difference Result 9063 states and 13184 transitions. [2021-11-04 14:18:06,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 14:18:06,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 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) Word has length 62 [2021-11-04 14:18:06,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:18:06,323 INFO L225 Difference]: With dead ends: 9063 [2021-11-04 14:18:06,323 INFO L226 Difference]: Without dead ends: 6054 [2021-11-04 14:18:06,349 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.45ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 14:18:06,349 INFO L933 BasicCegarLoop]: 434 mSDtfsCounter, 2112 mSDsluCounter, 2000 mSDsCounter, 0 mSdLazyCounter, 3767 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6406.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2112 SdHoareTripleChecker+Valid, 662 SdHoareTripleChecker+Invalid, 3772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.42ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7517.26ms IncrementalHoareTripleChecker+Time [2021-11-04 14:18:06,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2112 Valid, 662 Invalid, 3772 Unknown, 0 Unchecked, 10.42ms Time], IncrementalHoareTripleChecker [5 Valid, 3767 Invalid, 0 Unknown, 0 Unchecked, 7517.26ms Time] [2021-11-04 14:18:06,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6054 states. [2021-11-04 14:18:06,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6054 to 5762. [2021-11-04 14:18:06,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5762 states, 5153 states have (on average 1.2850766543760916) internal successors, (6622), 5225 states have internal predecessors, (6622), 448 states have call successors, (448), 54 states have call predecessors, (448), 72 states have return successors, (1176), 492 states have call predecessors, (1176), 448 states have call successors, (1176) [2021-11-04 14:18:06,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5762 states to 5762 states and 8246 transitions. [2021-11-04 14:18:06,828 INFO L78 Accepts]: Start accepts. Automaton has 5762 states and 8246 transitions. Word has length 62 [2021-11-04 14:18:06,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:18:06,829 INFO L470 AbstractCegarLoop]: Abstraction has 5762 states and 8246 transitions. [2021-11-04 14:18:06,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 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) [2021-11-04 14:18:06,829 INFO L276 IsEmpty]: Start isEmpty. Operand 5762 states and 8246 transitions. [2021-11-04 14:18:06,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-04 14:18:06,830 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:18:06,830 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:18:06,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-04 14:18:06,830 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:18:06,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:18:06,831 INFO L85 PathProgramCache]: Analyzing trace with hash -962931773, now seen corresponding path program 1 times [2021-11-04 14:18:06,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:18:06,831 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069930793] [2021-11-04 14:18:06,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:18:06,831 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:18:06,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:18:06,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:18:06,921 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:18:06,921 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069930793] [2021-11-04 14:18:06,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069930793] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:18:06,921 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:18:06,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-04 14:18:06,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623246329] [2021-11-04 14:18:06,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:18:06,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-04 14:18:06,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:18:06,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-04 14:18:06,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-04 14:18:06,923 INFO L87 Difference]: Start difference. First operand 5762 states and 8246 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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) [2021-11-04 14:18:28,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:18:28,848 INFO L93 Difference]: Finished difference Result 13312 states and 19457 transitions. [2021-11-04 14:18:28,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-04 14:18:28,848 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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) Word has length 62 [2021-11-04 14:18:28,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:18:28,874 INFO L225 Difference]: With dead ends: 13312 [2021-11-04 14:18:28,874 INFO L226 Difference]: Without dead ends: 7758 [2021-11-04 14:18:28,901 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.68ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-04 14:18:28,902 INFO L933 BasicCegarLoop]: 607 mSDtfsCounter, 3110 mSDsluCounter, 11974 mSDsCounter, 0 mSdLazyCounter, 14699 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18583.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3183 SdHoareTripleChecker+Valid, 2217 SdHoareTripleChecker+Invalid, 14706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 31.67ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 14699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21096.61ms IncrementalHoareTripleChecker+Time [2021-11-04 14:18:28,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3183 Valid, 2217 Invalid, 14706 Unknown, 0 Unchecked, 31.67ms Time], IncrementalHoareTripleChecker [7 Valid, 14699 Invalid, 0 Unknown, 0 Unchecked, 21096.61ms Time] [2021-11-04 14:18:28,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7758 states. [2021-11-04 14:18:29,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7758 to 3092. [2021-11-04 14:18:29,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3092 states, 2745 states have (on average 1.2724954462659381) internal successors, (3493), 2823 states have internal predecessors, (3493), 224 states have call successors, (224), 27 states have call predecessors, (224), 36 states have return successors, (420), 246 states have call predecessors, (420), 224 states have call successors, (420) [2021-11-04 14:18:29,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3092 states to 3092 states and 4137 transitions. [2021-11-04 14:18:29,204 INFO L78 Accepts]: Start accepts. Automaton has 3092 states and 4137 transitions. Word has length 62 [2021-11-04 14:18:29,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:18:29,204 INFO L470 AbstractCegarLoop]: Abstraction has 3092 states and 4137 transitions. [2021-11-04 14:18:29,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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) [2021-11-04 14:18:29,204 INFO L276 IsEmpty]: Start isEmpty. Operand 3092 states and 4137 transitions. [2021-11-04 14:18:29,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-04 14:18:29,205 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:18:29,205 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:18:29,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-04 14:18:29,206 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:18:29,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:18:29,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1331614378, now seen corresponding path program 1 times [2021-11-04 14:18:29,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:18:29,206 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239062614] [2021-11-04 14:18:29,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:18:29,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:18:29,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:18:29,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:18:29,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:18:29,286 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239062614] [2021-11-04 14:18:29,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239062614] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:18:29,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:18:29,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 14:18:29,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037707406] [2021-11-04 14:18:29,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:18:29,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 14:18:29,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:18:29,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 14:18:29,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 14:18:29,287 INFO L87 Difference]: Start difference. First operand 3092 states and 4137 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 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) [2021-11-04 14:18:35,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:18:35,469 INFO L93 Difference]: Finished difference Result 3092 states and 4137 transitions. [2021-11-04 14:18:35,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 14:18:35,470 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 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) Word has length 63 [2021-11-04 14:18:35,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:18:35,477 INFO L225 Difference]: With dead ends: 3092 [2021-11-04 14:18:35,477 INFO L226 Difference]: Without dead ends: 3088 [2021-11-04 14:18:35,478 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.01ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 14:18:35,479 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 2032 mSDsluCounter, 2026 mSDsCounter, 0 mSdLazyCounter, 3630 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5148.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2032 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 3632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.81ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5921.27ms IncrementalHoareTripleChecker+Time [2021-11-04 14:18:35,479 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2032 Valid, 456 Invalid, 3632 Unknown, 0 Unchecked, 7.81ms Time], IncrementalHoareTripleChecker [2 Valid, 3630 Invalid, 0 Unknown, 0 Unchecked, 5921.27ms Time] [2021-11-04 14:18:35,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3088 states. [2021-11-04 14:18:35,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3088 to 3088. [2021-11-04 14:18:35,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3088 states, 2743 states have (on average 1.2719650018228217) internal successors, (3489), 2819 states have internal predecessors, (3489), 224 states have call successors, (224), 27 states have call predecessors, (224), 36 states have return successors, (420), 246 states have call predecessors, (420), 224 states have call successors, (420) [2021-11-04 14:18:35,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3088 states to 3088 states and 4133 transitions. [2021-11-04 14:18:35,723 INFO L78 Accepts]: Start accepts. Automaton has 3088 states and 4133 transitions. Word has length 63 [2021-11-04 14:18:35,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:18:35,723 INFO L470 AbstractCegarLoop]: Abstraction has 3088 states and 4133 transitions. [2021-11-04 14:18:35,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 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) [2021-11-04 14:18:35,723 INFO L276 IsEmpty]: Start isEmpty. Operand 3088 states and 4133 transitions. [2021-11-04 14:18:35,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-04 14:18:35,725 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:18:35,725 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:18:35,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-04 14:18:35,725 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:18:35,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:18:35,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1959292730, now seen corresponding path program 1 times [2021-11-04 14:18:35,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:18:35,726 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328853754] [2021-11-04 14:18:35,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:18:35,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:18:35,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:18:35,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:18:35,813 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:18:35,813 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328853754] [2021-11-04 14:18:35,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328853754] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:18:35,813 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:18:35,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-04 14:18:35,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036769877] [2021-11-04 14:18:35,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:18:35,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-04 14:18:35,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:18:35,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-04 14:18:35,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-04 14:18:35,814 INFO L87 Difference]: Start difference. First operand 3088 states and 4133 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 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) [2021-11-04 14:18:59,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:18:59,400 INFO L93 Difference]: Finished difference Result 7746 states and 10773 transitions. [2021-11-04 14:18:59,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-04 14:18:59,400 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 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) Word has length 64 [2021-11-04 14:18:59,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:18:59,416 INFO L225 Difference]: With dead ends: 7746 [2021-11-04 14:18:59,416 INFO L226 Difference]: Without dead ends: 7742 [2021-11-04 14:18:59,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.57ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-04 14:18:59,421 INFO L933 BasicCegarLoop]: 605 mSDtfsCounter, 3088 mSDsluCounter, 11822 mSDsCounter, 0 mSdLazyCounter, 14504 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19963.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3161 SdHoareTripleChecker+Valid, 2207 SdHoareTripleChecker+Invalid, 14508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 32.93ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22693.68ms IncrementalHoareTripleChecker+Time [2021-11-04 14:18:59,421 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3161 Valid, 2207 Invalid, 14508 Unknown, 0 Unchecked, 32.93ms Time], IncrementalHoareTripleChecker [4 Valid, 14504 Invalid, 0 Unknown, 0 Unchecked, 22693.68ms Time] [2021-11-04 14:18:59,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7742 states. [2021-11-04 14:18:59,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7742 to 3084. [2021-11-04 14:18:59,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3084 states, 2741 states have (on average 1.2714337832907698) internal successors, (3485), 2815 states have internal predecessors, (3485), 224 states have call successors, (224), 27 states have call predecessors, (224), 36 states have return successors, (420), 246 states have call predecessors, (420), 224 states have call successors, (420) [2021-11-04 14:18:59,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3084 states to 3084 states and 4129 transitions. [2021-11-04 14:18:59,704 INFO L78 Accepts]: Start accepts. Automaton has 3084 states and 4129 transitions. Word has length 64 [2021-11-04 14:18:59,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:18:59,704 INFO L470 AbstractCegarLoop]: Abstraction has 3084 states and 4129 transitions. [2021-11-04 14:18:59,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 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) [2021-11-04 14:18:59,705 INFO L276 IsEmpty]: Start isEmpty. Operand 3084 states and 4129 transitions. [2021-11-04 14:18:59,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-04 14:18:59,706 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:18:59,706 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:18:59,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-04 14:18:59,706 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:18:59,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:18:59,707 INFO L85 PathProgramCache]: Analyzing trace with hash -703340252, now seen corresponding path program 1 times [2021-11-04 14:18:59,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:18:59,707 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613893799] [2021-11-04 14:18:59,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:18:59,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:18:59,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:18:59,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:18:59,784 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:18:59,784 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613893799] [2021-11-04 14:18:59,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613893799] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:18:59,785 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:18:59,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 14:18:59,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104491535] [2021-11-04 14:18:59,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:18:59,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 14:18:59,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:18:59,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 14:18:59,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 14:18:59,787 INFO L87 Difference]: Start difference. First operand 3084 states and 4129 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2021-11-04 14:19:03,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:19:03,327 INFO L93 Difference]: Finished difference Result 5879 states and 7898 transitions. [2021-11-04 14:19:03,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 14:19:03,327 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) Word has length 64 [2021-11-04 14:19:03,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:19:03,335 INFO L225 Difference]: With dead ends: 5879 [2021-11-04 14:19:03,335 INFO L226 Difference]: Without dead ends: 3080 [2021-11-04 14:19:03,342 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.85ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 14:19:03,342 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 2033 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1824 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2728.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2033 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 1827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.99ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3240.84ms IncrementalHoareTripleChecker+Time [2021-11-04 14:19:03,343 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2033 Valid, 228 Invalid, 1827 Unknown, 0 Unchecked, 2.99ms Time], IncrementalHoareTripleChecker [3 Valid, 1824 Invalid, 0 Unknown, 0 Unchecked, 3240.84ms Time] [2021-11-04 14:19:03,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3080 states. [2021-11-04 14:19:03,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3080 to 3080. [2021-11-04 14:19:03,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3080 states, 2738 states have (on average 1.2702702702702702) internal successors, (3478), 2811 states have internal predecessors, (3478), 224 states have call successors, (224), 27 states have call predecessors, (224), 36 states have return successors, (420), 246 states have call predecessors, (420), 224 states have call successors, (420) [2021-11-04 14:19:03,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3080 states to 3080 states and 4122 transitions. [2021-11-04 14:19:03,620 INFO L78 Accepts]: Start accepts. Automaton has 3080 states and 4122 transitions. Word has length 64 [2021-11-04 14:19:03,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:19:03,620 INFO L470 AbstractCegarLoop]: Abstraction has 3080 states and 4122 transitions. [2021-11-04 14:19:03,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2021-11-04 14:19:03,620 INFO L276 IsEmpty]: Start isEmpty. Operand 3080 states and 4122 transitions. [2021-11-04 14:19:03,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-04 14:19:03,622 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:19:03,622 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:19:03,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-04 14:19:03,622 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:19:03,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:19:03,623 INFO L85 PathProgramCache]: Analyzing trace with hash -218612978, now seen corresponding path program 1 times [2021-11-04 14:19:03,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:19:03,623 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075637804] [2021-11-04 14:19:03,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:19:03,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:19:03,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:19:03,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:19:03,702 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:19:03,702 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075637804] [2021-11-04 14:19:03,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075637804] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:19:03,703 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:19:03,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 14:19:03,703 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562031774] [2021-11-04 14:19:03,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:19:03,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 14:19:03,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:19:03,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 14:19:03,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 14:19:03,704 INFO L87 Difference]: Start difference. First operand 3080 states and 4122 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 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) [2021-11-04 14:19:09,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:19:09,884 INFO L93 Difference]: Finished difference Result 3080 states and 4122 transitions. [2021-11-04 14:19:09,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 14:19:09,884 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 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) Word has length 65 [2021-11-04 14:19:09,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:19:09,888 INFO L225 Difference]: With dead ends: 3080 [2021-11-04 14:19:09,888 INFO L226 Difference]: Without dead ends: 3076 [2021-11-04 14:19:09,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.68ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 14:19:09,889 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 2010 mSDsluCounter, 2022 mSDsCounter, 0 mSdLazyCounter, 3614 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5114.75ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2010 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 3616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.93ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5877.36ms IncrementalHoareTripleChecker+Time [2021-11-04 14:19:09,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2010 Valid, 456 Invalid, 3616 Unknown, 0 Unchecked, 6.93ms Time], IncrementalHoareTripleChecker [2 Valid, 3614 Invalid, 0 Unknown, 0 Unchecked, 5877.36ms Time] [2021-11-04 14:19:09,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3076 states. [2021-11-04 14:19:10,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3076 to 3076. [2021-11-04 14:19:10,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3076 states, 2736 states have (on average 1.269736842105263) internal successors, (3474), 2807 states have internal predecessors, (3474), 224 states have call successors, (224), 27 states have call predecessors, (224), 36 states have return successors, (420), 246 states have call predecessors, (420), 224 states have call successors, (420) [2021-11-04 14:19:10,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3076 states to 3076 states and 4118 transitions. [2021-11-04 14:19:10,146 INFO L78 Accepts]: Start accepts. Automaton has 3076 states and 4118 transitions. Word has length 65 [2021-11-04 14:19:10,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:19:10,146 INFO L470 AbstractCegarLoop]: Abstraction has 3076 states and 4118 transitions. [2021-11-04 14:19:10,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 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) [2021-11-04 14:19:10,146 INFO L276 IsEmpty]: Start isEmpty. Operand 3076 states and 4118 transitions. [2021-11-04 14:19:10,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-04 14:19:10,148 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:19:10,148 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:19:10,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-04 14:19:10,148 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:19:10,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:19:10,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1619041261, now seen corresponding path program 1 times [2021-11-04 14:19:10,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:19:10,149 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156880901] [2021-11-04 14:19:10,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:19:10,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:19:10,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:19:10,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-04 14:19:10,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:19:10,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:19:10,307 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:19:10,307 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156880901] [2021-11-04 14:19:10,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156880901] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:19:10,307 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:19:10,307 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-04 14:19:10,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514165525] [2021-11-04 14:19:10,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:19:10,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-04 14:19:10,308 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:19:10,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-04 14:19:10,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-04 14:19:10,309 INFO L87 Difference]: Start difference. First operand 3076 states and 4118 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-04 14:19:12,143 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 14:19:25,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:19:25,353 INFO L93 Difference]: Finished difference Result 5272 states and 7269 transitions. [2021-11-04 14:19:25,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-04 14:19:25,354 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2021-11-04 14:19:25,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:19:25,361 INFO L225 Difference]: With dead ends: 5272 [2021-11-04 14:19:25,361 INFO L226 Difference]: Without dead ends: 3211 [2021-11-04 14:19:25,369 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 56.39ms TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-04 14:19:25,369 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 140 mSDsluCounter, 7409 mSDsCounter, 0 mSdLazyCounter, 9321 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12937.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 1017 SdHoareTripleChecker+Invalid, 9460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.22ms SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 9321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14663.78ms IncrementalHoareTripleChecker+Time [2021-11-04 14:19:25,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 1017 Invalid, 9460 Unknown, 0 Unchecked, 20.22ms Time], IncrementalHoareTripleChecker [139 Valid, 9321 Invalid, 0 Unknown, 0 Unchecked, 14663.78ms Time] [2021-11-04 14:19:25,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3211 states. [2021-11-04 14:19:25,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3211 to 3088. [2021-11-04 14:19:25,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3088 states, 2748 states have (on average 1.2685589519650655) internal successors, (3486), 2813 states have internal predecessors, (3486), 224 states have call successors, (224), 27 states have call predecessors, (224), 36 states have return successors, (420), 252 states have call predecessors, (420), 224 states have call successors, (420) [2021-11-04 14:19:25,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3088 states to 3088 states and 4130 transitions. [2021-11-04 14:19:25,620 INFO L78 Accepts]: Start accepts. Automaton has 3088 states and 4130 transitions. Word has length 69 [2021-11-04 14:19:25,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:19:25,620 INFO L470 AbstractCegarLoop]: Abstraction has 3088 states and 4130 transitions. [2021-11-04 14:19:25,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-04 14:19:25,620 INFO L276 IsEmpty]: Start isEmpty. Operand 3088 states and 4130 transitions. [2021-11-04 14:19:25,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-04 14:19:25,622 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:19:25,622 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:19:25,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-04 14:19:25,622 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:19:25,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:19:25,622 INFO L85 PathProgramCache]: Analyzing trace with hash -671109870, now seen corresponding path program 1 times [2021-11-04 14:19:25,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:19:25,623 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454053550] [2021-11-04 14:19:25,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:19:25,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:19:25,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:19:25,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:19:25,718 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:19:25,718 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454053550] [2021-11-04 14:19:25,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454053550] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:19:25,719 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:19:25,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-04 14:19:25,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552183619] [2021-11-04 14:19:25,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:19:25,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-04 14:19:25,719 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:19:25,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-04 14:19:25,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-04 14:19:25,720 INFO L87 Difference]: Start difference. First operand 3088 states and 4130 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 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) [2021-11-04 14:19:27,786 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 14:19:37,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:19:37,238 INFO L93 Difference]: Finished difference Result 7784 states and 10475 transitions. [2021-11-04 14:19:37,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-04 14:19:37,238 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 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) Word has length 66 [2021-11-04 14:19:37,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:19:37,250 INFO L225 Difference]: With dead ends: 7784 [2021-11-04 14:19:37,250 INFO L226 Difference]: Without dead ends: 4783 [2021-11-04 14:19:37,257 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.95ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-04 14:19:37,257 INFO L933 BasicCegarLoop]: 275 mSDtfsCounter, 4856 mSDsluCounter, 3920 mSDsCounter, 0 mSdLazyCounter, 6005 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9674.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4856 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 6191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.69ms SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 6005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10974.83ms IncrementalHoareTripleChecker+Time [2021-11-04 14:19:37,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4856 Valid, 825 Invalid, 6191 Unknown, 0 Unchecked, 14.69ms Time], IncrementalHoareTripleChecker [186 Valid, 6005 Invalid, 0 Unknown, 0 Unchecked, 10974.83ms Time] [2021-11-04 14:19:37,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4783 states. [2021-11-04 14:19:37,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4783 to 3088. [2021-11-04 14:19:37,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3088 states, 2748 states have (on average 1.26783114992722) internal successors, (3484), 2813 states have internal predecessors, (3484), 224 states have call successors, (224), 27 states have call predecessors, (224), 36 states have return successors, (420), 252 states have call predecessors, (420), 224 states have call successors, (420) [2021-11-04 14:19:37,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3088 states to 3088 states and 4128 transitions. [2021-11-04 14:19:37,517 INFO L78 Accepts]: Start accepts. Automaton has 3088 states and 4128 transitions. Word has length 66 [2021-11-04 14:19:37,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:19:37,517 INFO L470 AbstractCegarLoop]: Abstraction has 3088 states and 4128 transitions. [2021-11-04 14:19:37,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 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) [2021-11-04 14:19:37,518 INFO L276 IsEmpty]: Start isEmpty. Operand 3088 states and 4128 transitions. [2021-11-04 14:19:37,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-04 14:19:37,519 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:19:37,519 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:19:37,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-04 14:19:37,519 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:19:37,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:19:37,520 INFO L85 PathProgramCache]: Analyzing trace with hash -671050288, now seen corresponding path program 1 times [2021-11-04 14:19:37,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:19:37,520 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182966710] [2021-11-04 14:19:37,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:19:37,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:19:37,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:19:37,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:19:37,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:19:37,590 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182966710] [2021-11-04 14:19:37,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182966710] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:19:37,590 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:19:37,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-04 14:19:37,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241492371] [2021-11-04 14:19:37,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:19:37,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 14:19:37,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:19:37,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 14:19:37,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 14:19:37,592 INFO L87 Difference]: Start difference. First operand 3088 states and 4128 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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) [2021-11-04 14:19:47,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:19:47,910 INFO L93 Difference]: Finished difference Result 4783 states and 6444 transitions. [2021-11-04 14:19:47,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 14:19:47,911 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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) Word has length 66 [2021-11-04 14:19:47,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:19:47,920 INFO L225 Difference]: With dead ends: 4783 [2021-11-04 14:19:47,920 INFO L226 Difference]: Without dead ends: 4781 [2021-11-04 14:19:47,924 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.96ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 14:19:47,924 INFO L933 BasicCegarLoop]: 355 mSDtfsCounter, 2431 mSDsluCounter, 3932 mSDsCounter, 0 mSdLazyCounter, 5935 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8474.87ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2431 SdHoareTripleChecker+Valid, 905 SdHoareTripleChecker+Invalid, 6095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.84ms SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 5935 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9784.84ms IncrementalHoareTripleChecker+Time [2021-11-04 14:19:47,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2431 Valid, 905 Invalid, 6095 Unknown, 0 Unchecked, 11.84ms Time], IncrementalHoareTripleChecker [160 Valid, 5935 Invalid, 0 Unknown, 0 Unchecked, 9784.84ms Time] [2021-11-04 14:19:47,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4781 states. [2021-11-04 14:19:48,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4781 to 3086. [2021-11-04 14:19:48,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3086 states, 2747 states have (on average 1.2672005824535857) internal successors, (3481), 2811 states have internal predecessors, (3481), 224 states have call successors, (224), 27 states have call predecessors, (224), 36 states have return successors, (420), 252 states have call predecessors, (420), 224 states have call successors, (420) [2021-11-04 14:19:48,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3086 states to 3086 states and 4125 transitions. [2021-11-04 14:19:48,179 INFO L78 Accepts]: Start accepts. Automaton has 3086 states and 4125 transitions. Word has length 66 [2021-11-04 14:19:48,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:19:48,179 INFO L470 AbstractCegarLoop]: Abstraction has 3086 states and 4125 transitions. [2021-11-04 14:19:48,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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) [2021-11-04 14:19:48,180 INFO L276 IsEmpty]: Start isEmpty. Operand 3086 states and 4125 transitions. [2021-11-04 14:19:48,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-04 14:19:48,181 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:19:48,181 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:19:48,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-04 14:19:48,181 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:19:48,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:19:48,182 INFO L85 PathProgramCache]: Analyzing trace with hash 366549970, now seen corresponding path program 1 times [2021-11-04 14:19:48,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:19:48,182 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761858545] [2021-11-04 14:19:48,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:19:48,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:19:48,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:19:48,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:19:48,248 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:19:48,248 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761858545] [2021-11-04 14:19:48,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761858545] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:19:48,248 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:19:48,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 14:19:48,249 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621169133] [2021-11-04 14:19:48,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:19:48,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 14:19:48,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:19:48,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 14:19:48,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 14:19:48,250 INFO L87 Difference]: Start difference. First operand 3086 states and 4125 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 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) [2021-11-04 14:19:54,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:19:54,436 INFO L93 Difference]: Finished difference Result 3086 states and 4125 transitions. [2021-11-04 14:19:54,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 14:19:54,436 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 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) Word has length 67 [2021-11-04 14:19:54,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:19:54,440 INFO L225 Difference]: With dead ends: 3086 [2021-11-04 14:19:54,440 INFO L226 Difference]: Without dead ends: 3082 [2021-11-04 14:19:54,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.82ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 14:19:54,441 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 1993 mSDsluCounter, 2023 mSDsCounter, 0 mSdLazyCounter, 3608 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5008.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1993 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 3610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.41ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5858.16ms IncrementalHoareTripleChecker+Time [2021-11-04 14:19:54,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1993 Valid, 456 Invalid, 3610 Unknown, 0 Unchecked, 7.41ms Time], IncrementalHoareTripleChecker [2 Valid, 3608 Invalid, 0 Unknown, 0 Unchecked, 5858.16ms Time] [2021-11-04 14:19:54,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3082 states. [2021-11-04 14:19:54,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3082 to 3082. [2021-11-04 14:19:54,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3082 states, 2745 states have (on average 1.2666666666666666) internal successors, (3477), 2807 states have internal predecessors, (3477), 224 states have call successors, (224), 27 states have call predecessors, (224), 36 states have return successors, (420), 252 states have call predecessors, (420), 224 states have call successors, (420) [2021-11-04 14:19:54,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3082 states to 3082 states and 4121 transitions. [2021-11-04 14:19:54,699 INFO L78 Accepts]: Start accepts. Automaton has 3082 states and 4121 transitions. Word has length 67 [2021-11-04 14:19:54,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:19:54,700 INFO L470 AbstractCegarLoop]: Abstraction has 3082 states and 4121 transitions. [2021-11-04 14:19:54,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 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) [2021-11-04 14:19:54,700 INFO L276 IsEmpty]: Start isEmpty. Operand 3082 states and 4121 transitions. [2021-11-04 14:19:54,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-04 14:19:54,701 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:19:54,702 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:19:54,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-11-04 14:19:54,702 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:19:54,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:19:54,702 INFO L85 PathProgramCache]: Analyzing trace with hash -2032569340, now seen corresponding path program 1 times [2021-11-04 14:19:54,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:19:54,702 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219383967] [2021-11-04 14:19:54,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:19:54,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:19:54,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:19:54,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:19:54,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:19:54,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219383967] [2021-11-04 14:19:54,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219383967] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:19:54,773 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:19:54,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-04 14:19:54,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118606151] [2021-11-04 14:19:54,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:19:54,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-04 14:19:54,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:19:54,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-04 14:19:54,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-04 14:19:54,775 INFO L87 Difference]: Start difference. First operand 3082 states and 4121 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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) [2021-11-04 14:19:59,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:19:59,649 INFO L93 Difference]: Finished difference Result 5920 states and 7934 transitions. [2021-11-04 14:19:59,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 14:19:59,650 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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) Word has length 67 [2021-11-04 14:19:59,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:19:59,658 INFO L225 Difference]: With dead ends: 5920 [2021-11-04 14:19:59,659 INFO L226 Difference]: Without dead ends: 3127 [2021-11-04 14:19:59,667 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.22ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-04 14:19:59,668 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 5393 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 1966 mSolverCounterSat, 697 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3758.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5393 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 2663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.67ms SdHoareTripleChecker+Time, 697 IncrementalHoareTripleChecker+Valid, 1966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4489.88ms IncrementalHoareTripleChecker+Time [2021-11-04 14:19:59,668 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5393 Valid, 228 Invalid, 2663 Unknown, 0 Unchecked, 9.67ms Time], IncrementalHoareTripleChecker [697 Valid, 1966 Invalid, 0 Unknown, 0 Unchecked, 4489.88ms Time] [2021-11-04 14:19:59,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3127 states. [2021-11-04 14:19:59,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3127 to 3078. [2021-11-04 14:19:59,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3078 states, 2742 states have (on average 1.2654996353026988) internal successors, (3470), 2803 states have internal predecessors, (3470), 224 states have call successors, (224), 27 states have call predecessors, (224), 36 states have return successors, (420), 252 states have call predecessors, (420), 224 states have call successors, (420) [2021-11-04 14:19:59,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3078 states to 3078 states and 4114 transitions. [2021-11-04 14:19:59,966 INFO L78 Accepts]: Start accepts. Automaton has 3078 states and 4114 transitions. Word has length 67 [2021-11-04 14:19:59,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:19:59,966 INFO L470 AbstractCegarLoop]: Abstraction has 3078 states and 4114 transitions. [2021-11-04 14:19:59,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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) [2021-11-04 14:19:59,966 INFO L276 IsEmpty]: Start isEmpty. Operand 3078 states and 4114 transitions. [2021-11-04 14:19:59,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-04 14:19:59,968 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:19:59,968 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:19:59,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-04 14:19:59,968 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:19:59,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:19:59,969 INFO L85 PathProgramCache]: Analyzing trace with hash 67427574, now seen corresponding path program 1 times [2021-11-04 14:19:59,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:19:59,969 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079912841] [2021-11-04 14:19:59,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:19:59,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:19:59,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:20:00,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:20:00,045 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:20:00,045 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079912841] [2021-11-04 14:20:00,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079912841] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:20:00,045 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:20:00,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 14:20:00,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856414113] [2021-11-04 14:20:00,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:20:00,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 14:20:00,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:20:00,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 14:20:00,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 14:20:00,047 INFO L87 Difference]: Start difference. First operand 3078 states and 4114 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 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) [2021-11-04 14:20:02,384 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 14:20:09,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:20:09,435 INFO L93 Difference]: Finished difference Result 3078 states and 4114 transitions. [2021-11-04 14:20:09,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 14:20:09,435 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 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) Word has length 69 [2021-11-04 14:20:09,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:20:09,440 INFO L225 Difference]: With dead ends: 3078 [2021-11-04 14:20:09,440 INFO L226 Difference]: Without dead ends: 3074 [2021-11-04 14:20:09,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.14ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 14:20:09,441 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 1975 mSDsluCounter, 2023 mSDsCounter, 0 mSdLazyCounter, 3599 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7726.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1975 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 3602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.59ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3599 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9019.38ms IncrementalHoareTripleChecker+Time [2021-11-04 14:20:09,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1975 Valid, 456 Invalid, 3602 Unknown, 0 Unchecked, 11.59ms Time], IncrementalHoareTripleChecker [2 Valid, 3599 Invalid, 1 Unknown, 0 Unchecked, 9019.38ms Time] [2021-11-04 14:20:09,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3074 states. [2021-11-04 14:20:09,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3074 to 3074. [2021-11-04 14:20:09,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3074 states, 2740 states have (on average 1.264963503649635) internal successors, (3466), 2799 states have internal predecessors, (3466), 224 states have call successors, (224), 27 states have call predecessors, (224), 36 states have return successors, (420), 252 states have call predecessors, (420), 224 states have call successors, (420) [2021-11-04 14:20:09,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3074 states to 3074 states and 4110 transitions. [2021-11-04 14:20:09,713 INFO L78 Accepts]: Start accepts. Automaton has 3074 states and 4110 transitions. Word has length 69 [2021-11-04 14:20:09,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:20:09,713 INFO L470 AbstractCegarLoop]: Abstraction has 3074 states and 4110 transitions. [2021-11-04 14:20:09,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 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) [2021-11-04 14:20:09,713 INFO L276 IsEmpty]: Start isEmpty. Operand 3074 states and 4110 transitions. [2021-11-04 14:20:09,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-04 14:20:09,715 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:20:09,715 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:20:09,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-11-04 14:20:09,715 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:20:09,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:20:09,716 INFO L85 PathProgramCache]: Analyzing trace with hash 373614202, now seen corresponding path program 1 times [2021-11-04 14:20:09,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:20:09,716 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28114319] [2021-11-04 14:20:09,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:20:09,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:20:09,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:20:09,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:20:09,786 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:20:09,786 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28114319] [2021-11-04 14:20:09,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28114319] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:20:09,786 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:20:09,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 14:20:09,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242091108] [2021-11-04 14:20:09,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:20:09,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 14:20:09,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:20:09,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 14:20:09,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 14:20:09,788 INFO L87 Difference]: Start difference. First operand 3074 states and 4110 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 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) [2021-11-04 14:20:20,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:20:20,631 INFO L93 Difference]: Finished difference Result 5979 states and 8403 transitions. [2021-11-04 14:20:20,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 14:20:20,632 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 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) Word has length 71 [2021-11-04 14:20:20,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:20:20,643 INFO L225 Difference]: With dead ends: 5979 [2021-11-04 14:20:20,643 INFO L226 Difference]: Without dead ends: 5888 [2021-11-04 14:20:20,644 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.44ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 14:20:20,644 INFO L933 BasicCegarLoop]: 421 mSDtfsCounter, 1959 mSDsluCounter, 5064 mSDsCounter, 0 mSdLazyCounter, 6977 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8620.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1959 SdHoareTripleChecker+Valid, 1180 SdHoareTripleChecker+Invalid, 6979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.81ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6977 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10159.11ms IncrementalHoareTripleChecker+Time [2021-11-04 14:20:20,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1959 Valid, 1180 Invalid, 6979 Unknown, 0 Unchecked, 14.81ms Time], IncrementalHoareTripleChecker [2 Valid, 6977 Invalid, 0 Unknown, 0 Unchecked, 10159.11ms Time] [2021-11-04 14:20:20,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5888 states. [2021-11-04 14:20:21,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5888 to 5744. [2021-11-04 14:20:21,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5744 states, 5152 states have (on average 1.2762034161490683) internal successors, (6575), 5195 states have internal predecessors, (6575), 446 states have call successors, (446), 54 states have call predecessors, (446), 72 states have return successors, (1212), 504 states have call predecessors, (1212), 446 states have call successors, (1212) [2021-11-04 14:20:21,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5744 states to 5744 states and 8233 transitions. [2021-11-04 14:20:21,209 INFO L78 Accepts]: Start accepts. Automaton has 5744 states and 8233 transitions. Word has length 71 [2021-11-04 14:20:21,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:20:21,209 INFO L470 AbstractCegarLoop]: Abstraction has 5744 states and 8233 transitions. [2021-11-04 14:20:21,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 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) [2021-11-04 14:20:21,210 INFO L276 IsEmpty]: Start isEmpty. Operand 5744 states and 8233 transitions. [2021-11-04 14:20:21,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-04 14:20:21,212 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:20:21,212 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:20:21,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-11-04 14:20:21,213 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting destroy_asyncErr0ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:20:21,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:20:21,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1639078494, now seen corresponding path program 1 times [2021-11-04 14:20:21,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:20:21,214 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958587435] [2021-11-04 14:20:21,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:20:21,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:20:21,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:20:21,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-04 14:20:21,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:20:21,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:20:21,372 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:20:21,373 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958587435] [2021-11-04 14:20:21,373 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958587435] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:20:21,373 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:20:21,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-04 14:20:21,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192149553] [2021-11-04 14:20:21,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:20:21,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-04 14:20:21,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:20:21,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-04 14:20:21,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-04 14:20:21,374 INFO L87 Difference]: Start difference. First operand 5744 states and 8233 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-04 14:20:36,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:20:36,646 INFO L93 Difference]: Finished difference Result 11433 states and 17691 transitions. [2021-11-04 14:20:36,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-04 14:20:36,646 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 82 [2021-11-04 14:20:36,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:20:36,662 INFO L225 Difference]: With dead ends: 11433 [2021-11-04 14:20:36,663 INFO L226 Difference]: Without dead ends: 5858 [2021-11-04 14:20:36,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 93.19ms TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-04 14:20:36,691 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 93 mSDsluCounter, 7274 mSDsCounter, 0 mSdLazyCounter, 9075 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12373.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 1056 SdHoareTripleChecker+Invalid, 9206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 22.37ms SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 9075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14476.24ms IncrementalHoareTripleChecker+Time [2021-11-04 14:20:36,691 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 1056 Invalid, 9206 Unknown, 0 Unchecked, 22.37ms Time], IncrementalHoareTripleChecker [131 Valid, 9075 Invalid, 0 Unknown, 0 Unchecked, 14476.24ms Time] [2021-11-04 14:20:36,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5858 states. [2021-11-04 14:20:37,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5858 to 5782. [2021-11-04 14:20:37,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5782 states, 5183 states have (on average 1.2751302334555277) internal successors, (6609), 5223 states have internal predecessors, (6609), 446 states have call successors, (446), 54 states have call predecessors, (446), 79 states have return successors, (1255), 514 states have call predecessors, (1255), 446 states have call successors, (1255) [2021-11-04 14:20:37,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5782 states to 5782 states and 8310 transitions. [2021-11-04 14:20:37,249 INFO L78 Accepts]: Start accepts. Automaton has 5782 states and 8310 transitions. Word has length 82 [2021-11-04 14:20:37,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:20:37,249 INFO L470 AbstractCegarLoop]: Abstraction has 5782 states and 8310 transitions. [2021-11-04 14:20:37,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-04 14:20:37,250 INFO L276 IsEmpty]: Start isEmpty. Operand 5782 states and 8310 transitions. [2021-11-04 14:20:37,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-04 14:20:37,252 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:20:37,252 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:20:37,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-11-04 14:20:37,252 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:20:37,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:20:37,253 INFO L85 PathProgramCache]: Analyzing trace with hash 520685166, now seen corresponding path program 1 times [2021-11-04 14:20:37,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:20:37,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890670798] [2021-11-04 14:20:37,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:20:37,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:20:37,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:20:37,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:20:37,355 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:20:37,356 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890670798] [2021-11-04 14:20:37,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890670798] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:20:37,356 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:20:37,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 14:20:37,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88113409] [2021-11-04 14:20:37,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:20:37,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 14:20:37,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:20:37,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 14:20:37,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 14:20:37,357 INFO L87 Difference]: Start difference. First operand 5782 states and 8310 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 3 states have internal predecessors, (88), 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) [2021-11-04 14:20:46,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:20:46,635 INFO L93 Difference]: Finished difference Result 8305 states and 12390 transitions. [2021-11-04 14:20:46,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-04 14:20:46,636 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 3 states have internal predecessors, (88), 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) Word has length 88 [2021-11-04 14:20:46,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:20:46,658 INFO L225 Difference]: With dead ends: 8305 [2021-11-04 14:20:46,658 INFO L226 Difference]: Without dead ends: 8271 [2021-11-04 14:20:46,660 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.11ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 14:20:46,660 INFO L933 BasicCegarLoop]: 374 mSDtfsCounter, 2797 mSDsluCounter, 1921 mSDsCounter, 0 mSdLazyCounter, 4226 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7266.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2797 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 4356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.23ms SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 4226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8431.67ms IncrementalHoareTripleChecker+Time [2021-11-04 14:20:46,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2797 Valid, 674 Invalid, 4356 Unknown, 0 Unchecked, 10.23ms Time], IncrementalHoareTripleChecker [130 Valid, 4226 Invalid, 0 Unknown, 0 Unchecked, 8431.67ms Time] [2021-11-04 14:20:46,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8271 states. [2021-11-04 14:20:47,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8271 to 5748. [2021-11-04 14:20:47,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5748 states, 5166 states have (on average 1.2634533488192026) internal successors, (6527), 5189 states have internal predecessors, (6527), 446 states have call successors, (446), 54 states have call predecessors, (446), 79 states have return successors, (1255), 514 states have call predecessors, (1255), 446 states have call successors, (1255) [2021-11-04 14:20:47,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5748 states to 5748 states and 8228 transitions. [2021-11-04 14:20:47,281 INFO L78 Accepts]: Start accepts. Automaton has 5748 states and 8228 transitions. Word has length 88 [2021-11-04 14:20:47,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:20:47,281 INFO L470 AbstractCegarLoop]: Abstraction has 5748 states and 8228 transitions. [2021-11-04 14:20:47,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 3 states have internal predecessors, (88), 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) [2021-11-04 14:20:47,281 INFO L276 IsEmpty]: Start isEmpty. Operand 5748 states and 8228 transitions. [2021-11-04 14:20:47,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-04 14:20:47,284 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:20:47,284 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:20:47,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-11-04 14:20:47,285 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:20:47,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:20:47,285 INFO L85 PathProgramCache]: Analyzing trace with hash -2115046006, now seen corresponding path program 1 times [2021-11-04 14:20:47,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:20:47,285 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980791008] [2021-11-04 14:20:47,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:20:47,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:20:47,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:20:47,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:20:47,365 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:20:47,365 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980791008] [2021-11-04 14:20:47,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980791008] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:20:47,365 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:20:47,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-04 14:20:47,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886416466] [2021-11-04 14:20:47,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:20:47,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 14:20:47,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:20:47,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 14:20:47,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 14:20:47,367 INFO L87 Difference]: Start difference. First operand 5748 states and 8228 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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) [2021-11-04 14:20:49,419 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 14:21:02,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:21:02,121 INFO L93 Difference]: Finished difference Result 8811 states and 12908 transitions. [2021-11-04 14:21:02,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-04 14:21:02,121 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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) Word has length 95 [2021-11-04 14:21:02,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:21:02,144 INFO L225 Difference]: With dead ends: 8811 [2021-11-04 14:21:02,145 INFO L226 Difference]: Without dead ends: 8777 [2021-11-04 14:21:02,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.38ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 14:21:02,147 INFO L933 BasicCegarLoop]: 374 mSDtfsCounter, 1243 mSDsluCounter, 4459 mSDsCounter, 0 mSdLazyCounter, 6537 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12039.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1317 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 6591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.42ms SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 6537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13781.83ms IncrementalHoareTripleChecker+Time [2021-11-04 14:21:02,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1317 Valid, 1048 Invalid, 6591 Unknown, 0 Unchecked, 13.42ms Time], IncrementalHoareTripleChecker [54 Valid, 6537 Invalid, 0 Unknown, 0 Unchecked, 13781.83ms Time] [2021-11-04 14:21:02,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8777 states. [2021-11-04 14:21:02,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8777 to 5714. [2021-11-04 14:21:02,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5714 states, 5149 states have (on average 1.251699359098854) internal successors, (6445), 5155 states have internal predecessors, (6445), 446 states have call successors, (446), 54 states have call predecessors, (446), 79 states have return successors, (1255), 514 states have call predecessors, (1255), 446 states have call successors, (1255) [2021-11-04 14:21:02,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5714 states to 5714 states and 8146 transitions. [2021-11-04 14:21:02,815 INFO L78 Accepts]: Start accepts. Automaton has 5714 states and 8146 transitions. Word has length 95 [2021-11-04 14:21:02,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:21:02,815 INFO L470 AbstractCegarLoop]: Abstraction has 5714 states and 8146 transitions. [2021-11-04 14:21:02,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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) [2021-11-04 14:21:02,815 INFO L276 IsEmpty]: Start isEmpty. Operand 5714 states and 8146 transitions. [2021-11-04 14:21:02,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-04 14:21:02,818 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:21:02,818 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:21:02,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-11-04 14:21:02,819 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting uss720_disconnectErr0ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:21:02,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:21:02,819 INFO L85 PathProgramCache]: Analyzing trace with hash 230320632, now seen corresponding path program 1 times [2021-11-04 14:21:02,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:21:02,819 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135405110] [2021-11-04 14:21:02,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:21:02,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:21:02,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:21:02,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:21:02,919 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:21:02,919 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135405110] [2021-11-04 14:21:02,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135405110] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:21:02,919 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:21:02,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 14:21:02,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154981134] [2021-11-04 14:21:02,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:21:02,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 14:21:02,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:21:02,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 14:21:02,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 14:21:02,922 INFO L87 Difference]: Start difference. First operand 5714 states and 8146 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 states have internal predecessors, (96), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 14:21:05,265 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 14:21:12,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:21:12,139 INFO L93 Difference]: Finished difference Result 5738 states and 8178 transitions. [2021-11-04 14:21:12,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-04 14:21:12,140 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 states have internal predecessors, (96), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2021-11-04 14:21:12,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:21:12,148 INFO L225 Difference]: With dead ends: 5738 [2021-11-04 14:21:12,148 INFO L226 Difference]: Without dead ends: 5736 [2021-11-04 14:21:12,149 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.63ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 14:21:12,150 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 1633 mSDsluCounter, 2068 mSDsCounter, 0 mSdLazyCounter, 3693 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7417.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1633 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 3718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.35ms SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 3693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8598.57ms IncrementalHoareTripleChecker+Time [2021-11-04 14:21:12,150 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1633 Valid, 459 Invalid, 3718 Unknown, 0 Unchecked, 8.35ms Time], IncrementalHoareTripleChecker [25 Valid, 3693 Invalid, 0 Unknown, 0 Unchecked, 8598.57ms Time] [2021-11-04 14:21:12,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5736 states. [2021-11-04 14:21:12,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5736 to 5730. [2021-11-04 14:21:12,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5730 states, 5163 states have (on average 1.2508231648266512) internal successors, (6458), 5171 states have internal predecessors, (6458), 446 states have call successors, (446), 54 states have call predecessors, (446), 82 states have return successors, (1261), 514 states have call predecessors, (1261), 446 states have call successors, (1261) [2021-11-04 14:21:12,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5730 states to 5730 states and 8165 transitions. [2021-11-04 14:21:12,716 INFO L78 Accepts]: Start accepts. Automaton has 5730 states and 8165 transitions. Word has length 97 [2021-11-04 14:21:12,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:21:12,717 INFO L470 AbstractCegarLoop]: Abstraction has 5730 states and 8165 transitions. [2021-11-04 14:21:12,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 states have internal predecessors, (96), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 14:21:12,717 INFO L276 IsEmpty]: Start isEmpty. Operand 5730 states and 8165 transitions. [2021-11-04 14:21:12,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-04 14:21:12,720 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:21:12,720 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:21:12,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-11-04 14:21:12,722 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting uss720_disconnectErr1ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:21:12,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:21:12,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1594754736, now seen corresponding path program 1 times [2021-11-04 14:21:12,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:21:12,722 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933644460] [2021-11-04 14:21:12,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:21:12,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:21:12,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:21:12,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:21:12,845 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:21:12,846 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933644460] [2021-11-04 14:21:12,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933644460] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:21:12,846 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:21:12,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-04 14:21:12,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760395134] [2021-11-04 14:21:12,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:21:12,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 14:21:12,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:21:12,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 14:21:12,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 14:21:12,848 INFO L87 Difference]: Start difference. First operand 5730 states and 8165 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 14:21:14,409 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 14:21:23,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:21:23,897 INFO L93 Difference]: Finished difference Result 5736 states and 8173 transitions. [2021-11-04 14:21:23,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-04 14:21:23,897 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2021-11-04 14:21:23,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:21:23,907 INFO L225 Difference]: With dead ends: 5736 [2021-11-04 14:21:23,907 INFO L226 Difference]: Without dead ends: 5734 [2021-11-04 14:21:23,909 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.74ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 14:21:23,909 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 225 mSDsluCounter, 3572 mSDsCounter, 0 mSdLazyCounter, 4966 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8930.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 4988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.48ms SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 4966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10418.49ms IncrementalHoareTripleChecker+Time [2021-11-04 14:21:23,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 689 Invalid, 4988 Unknown, 0 Unchecked, 9.48ms Time], IncrementalHoareTripleChecker [22 Valid, 4966 Invalid, 0 Unknown, 0 Unchecked, 10418.49ms Time] [2021-11-04 14:21:23,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5734 states. [2021-11-04 14:21:24,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5734 to 5728. [2021-11-04 14:21:24,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5728 states, 5162 states have (on average 1.250096861681519) internal successors, (6453), 5169 states have internal predecessors, (6453), 446 states have call successors, (446), 54 states have call predecessors, (446), 82 states have return successors, (1261), 514 states have call predecessors, (1261), 446 states have call successors, (1261) [2021-11-04 14:21:24,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5728 states to 5728 states and 8160 transitions. [2021-11-04 14:21:24,502 INFO L78 Accepts]: Start accepts. Automaton has 5728 states and 8160 transitions. Word has length 104 [2021-11-04 14:21:24,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:21:24,502 INFO L470 AbstractCegarLoop]: Abstraction has 5728 states and 8160 transitions. [2021-11-04 14:21:24,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 14:21:24,502 INFO L276 IsEmpty]: Start isEmpty. Operand 5728 states and 8160 transitions. [2021-11-04 14:21:24,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-04 14:21:24,506 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:21:24,506 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:21:24,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-11-04 14:21:24,506 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting destroy_asyncErr0ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:21:24,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:21:24,507 INFO L85 PathProgramCache]: Analyzing trace with hash -46434317, now seen corresponding path program 1 times [2021-11-04 14:21:24,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:21:24,507 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782814589] [2021-11-04 14:21:24,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:21:24,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:21:24,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:21:24,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:21:24,656 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:21:24,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782814589] [2021-11-04 14:21:24,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782814589] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:21:24,657 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:21:24,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-04 14:21:24,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753617269] [2021-11-04 14:21:24,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:21:24,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-04 14:21:24,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:21:24,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-04 14:21:24,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-04 14:21:24,658 INFO L87 Difference]: Start difference. First operand 5728 states and 8160 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (6), 2 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 14:21:43,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:21:43,570 INFO L93 Difference]: Finished difference Result 8733 states and 12842 transitions. [2021-11-04 14:21:43,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-04 14:21:43,570 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (6), 2 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-11-04 14:21:43,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:21:43,592 INFO L225 Difference]: With dead ends: 8733 [2021-11-04 14:21:43,592 INFO L226 Difference]: Without dead ends: 8731 [2021-11-04 14:21:43,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 16.68ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-04 14:21:43,595 INFO L933 BasicCegarLoop]: 752 mSDtfsCounter, 3735 mSDsluCounter, 8221 mSDsCounter, 0 mSdLazyCounter, 10937 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15346.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3736 SdHoareTripleChecker+Valid, 1990 SdHoareTripleChecker+Invalid, 10942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.17ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10937 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17813.53ms IncrementalHoareTripleChecker+Time [2021-11-04 14:21:43,595 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3736 Valid, 1990 Invalid, 10942 Unknown, 0 Unchecked, 26.17ms Time], IncrementalHoareTripleChecker [5 Valid, 10937 Invalid, 0 Unknown, 0 Unchecked, 17813.53ms Time] [2021-11-04 14:21:43,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8731 states. [2021-11-04 14:21:44,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8731 to 8411. [2021-11-04 14:21:44,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8411 states, 7578 states have (on average 1.2545526524148851) internal successors, (9507), 7570 states have internal predecessors, (9507), 668 states have call successors, (668), 81 states have call predecessors, (668), 127 states have return successors, (2392), 774 states have call predecessors, (2392), 668 states have call successors, (2392) [2021-11-04 14:21:44,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8411 states to 8411 states and 12567 transitions. [2021-11-04 14:21:44,493 INFO L78 Accepts]: Start accepts. Automaton has 8411 states and 12567 transitions. Word has length 120 [2021-11-04 14:21:44,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:21:44,493 INFO L470 AbstractCegarLoop]: Abstraction has 8411 states and 12567 transitions. [2021-11-04 14:21:44,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (6), 2 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 14:21:44,493 INFO L276 IsEmpty]: Start isEmpty. Operand 8411 states and 12567 transitions. [2021-11-04 14:21:44,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-04 14:21:44,498 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:21:44,498 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:21:44,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-11-04 14:21:44,498 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:21:44,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:21:44,498 INFO L85 PathProgramCache]: Analyzing trace with hash 780796894, now seen corresponding path program 1 times [2021-11-04 14:21:44,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:21:44,499 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610115284] [2021-11-04 14:21:44,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:21:44,499 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:21:44,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:21:44,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:21:44,680 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:21:44,680 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610115284] [2021-11-04 14:21:44,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610115284] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:21:44,680 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:21:44,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-04 14:21:44,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069740585] [2021-11-04 14:21:44,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:21:44,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-04 14:21:44,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:21:44,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-04 14:21:44,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-04 14:21:44,681 INFO L87 Difference]: Start difference. First operand 8411 states and 12567 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 8 states have internal predecessors, (114), 2 states have call successors, (5), 2 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 14:22:06,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:22:06,094 INFO L93 Difference]: Finished difference Result 16675 states and 27234 transitions. [2021-11-04 14:22:06,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-04 14:22:06,095 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 8 states have internal predecessors, (114), 2 states have call successors, (5), 2 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-11-04 14:22:06,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:22:06,126 INFO L225 Difference]: With dead ends: 16675 [2021-11-04 14:22:06,126 INFO L226 Difference]: Without dead ends: 8429 [2021-11-04 14:22:06,189 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 97.76ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-11-04 14:22:06,189 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 27 mSDsluCounter, 11843 mSDsCounter, 0 mSdLazyCounter, 12131 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17133.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 1736 SdHoareTripleChecker+Invalid, 12131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 25.76ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20284.90ms IncrementalHoareTripleChecker+Time [2021-11-04 14:22:06,189 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 1736 Invalid, 12131 Unknown, 0 Unchecked, 25.76ms Time], IncrementalHoareTripleChecker [0 Valid, 12131 Invalid, 0 Unknown, 0 Unchecked, 20284.90ms Time] [2021-11-04 14:22:06,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8429 states. [2021-11-04 14:22:07,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8429 to 8417. [2021-11-04 14:22:07,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8417 states, 7584 states have (on average 1.253691983122363) internal successors, (9508), 7576 states have internal predecessors, (9508), 668 states have call successors, (668), 81 states have call predecessors, (668), 127 states have return successors, (2392), 774 states have call predecessors, (2392), 668 states have call successors, (2392) [2021-11-04 14:22:07,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8417 states to 8417 states and 12568 transitions. [2021-11-04 14:22:07,140 INFO L78 Accepts]: Start accepts. Automaton has 8417 states and 12568 transitions. Word has length 119 [2021-11-04 14:22:07,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:22:07,140 INFO L470 AbstractCegarLoop]: Abstraction has 8417 states and 12568 transitions. [2021-11-04 14:22:07,141 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 8 states have internal predecessors, (114), 2 states have call successors, (5), 2 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 14:22:07,141 INFO L276 IsEmpty]: Start isEmpty. Operand 8417 states and 12568 transitions. [2021-11-04 14:22:07,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-04 14:22:07,145 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:22:07,145 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:22:07,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-11-04 14:22:07,145 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:22:07,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:22:07,146 INFO L85 PathProgramCache]: Analyzing trace with hash 916141842, now seen corresponding path program 1 times [2021-11-04 14:22:07,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:22:07,146 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934446292] [2021-11-04 14:22:07,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:22:07,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:22:07,176 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-04 14:22:07,177 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [981011879] [2021-11-04 14:22:07,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:22:07,177 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-04 14:22:07,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 14:22:07,179 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-04 14:22:07,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-04 14:22:07,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:22:07,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 2224 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-04 14:22:07,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-04 14:22:08,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:22:08,064 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-04 14:22:08,064 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:22:08,064 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934446292] [2021-11-04 14:22:08,064 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-04 14:22:08,064 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [981011879] [2021-11-04 14:22:08,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [981011879] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:22:08,064 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:22:08,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-04 14:22:08,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791110114] [2021-11-04 14:22:08,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:22:08,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-04 14:22:08,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:22:08,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-04 14:22:08,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-04 14:22:08,065 INFO L87 Difference]: Start difference. First operand 8417 states and 12568 transitions. Second operand has 7 states, 6 states have (on average 20.0) internal successors, (120), 5 states have internal predecessors, (120), 3 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 14:22:26,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:22:26,300 INFO L93 Difference]: Finished difference Result 16855 states and 27284 transitions. [2021-11-04 14:22:26,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-04 14:22:26,300 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 20.0) internal successors, (120), 5 states have internal predecessors, (120), 3 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2021-11-04 14:22:26,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:22:26,334 INFO L225 Difference]: With dead ends: 16855 [2021-11-04 14:22:26,334 INFO L226 Difference]: Without dead ends: 8603 [2021-11-04 14:22:26,392 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 43.86ms TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-04 14:22:26,393 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 28 mSDsluCounter, 9508 mSDsCounter, 0 mSdLazyCounter, 10685 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14309.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 1073 SdHoareTripleChecker+Invalid, 10738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 22.18ms SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 10685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17099.95ms IncrementalHoareTripleChecker+Time [2021-11-04 14:22:26,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 1073 Invalid, 10738 Unknown, 0 Unchecked, 22.18ms Time], IncrementalHoareTripleChecker [53 Valid, 10685 Invalid, 0 Unknown, 0 Unchecked, 17099.95ms Time] [2021-11-04 14:22:26,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8603 states. [2021-11-04 14:22:27,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8603 to 8585. [2021-11-04 14:22:27,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8585 states, 7722 states have (on average 1.2514892514892515) internal successors, (9664), 7708 states have internal predecessors, (9664), 680 states have call successors, (680), 99 states have call predecessors, (680), 145 states have return successors, (2452), 792 states have call predecessors, (2452), 680 states have call successors, (2452) [2021-11-04 14:22:27,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8585 states to 8585 states and 12796 transitions. [2021-11-04 14:22:27,351 INFO L78 Accepts]: Start accepts. Automaton has 8585 states and 12796 transitions. Word has length 125 [2021-11-04 14:22:27,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:22:27,352 INFO L470 AbstractCegarLoop]: Abstraction has 8585 states and 12796 transitions. [2021-11-04 14:22:27,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 20.0) internal successors, (120), 5 states have internal predecessors, (120), 3 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 14:22:27,352 INFO L276 IsEmpty]: Start isEmpty. Operand 8585 states and 12796 transitions. [2021-11-04 14:22:27,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-04 14:22:27,356 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:22:27,356 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:22:27,377 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-04 14:22:27,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-04 14:22:27,556 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting submit_async_requestErr6ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:22:27,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:22:27,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1194060150, now seen corresponding path program 1 times [2021-11-04 14:22:27,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:22:27,557 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156290728] [2021-11-04 14:22:27,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:22:27,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:22:27,597 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-04 14:22:27,597 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1962087223] [2021-11-04 14:22:27,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:22:27,597 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-04 14:22:27,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 14:22:27,598 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-04 14:22:27,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-04 14:22:28,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:22:28,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 2132 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-04 14:22:28,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-04 14:22:28,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:22:28,457 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-04 14:22:28,457 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:22:28,457 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156290728] [2021-11-04 14:22:28,457 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-04 14:22:28,457 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1962087223] [2021-11-04 14:22:28,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1962087223] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:22:28,457 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:22:28,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 14:22:28,457 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782592862] [2021-11-04 14:22:28,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:22:28,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 14:22:28,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:22:28,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 14:22:28,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 14:22:28,458 INFO L87 Difference]: Start difference. First operand 8585 states and 12796 transitions. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 states have internal predecessors, (120), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 14:22:36,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:22:36,269 INFO L93 Difference]: Finished difference Result 8597 states and 13162 transitions. [2021-11-04 14:22:36,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-04 14:22:36,270 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 states have internal predecessors, (120), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2021-11-04 14:22:36,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:22:36,287 INFO L225 Difference]: With dead ends: 8597 [2021-11-04 14:22:36,287 INFO L226 Difference]: Without dead ends: 8595 [2021-11-04 14:22:36,290 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.35ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 14:22:36,290 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 1623 mSDsluCounter, 2058 mSDsCounter, 0 mSdLazyCounter, 3656 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5620.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1623 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 3681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.56ms SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 3656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6872.45ms IncrementalHoareTripleChecker+Time [2021-11-04 14:22:36,291 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1623 Valid, 495 Invalid, 3681 Unknown, 0 Unchecked, 9.56ms Time], IncrementalHoareTripleChecker [25 Valid, 3656 Invalid, 0 Unknown, 0 Unchecked, 6872.45ms Time] [2021-11-04 14:22:36,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8595 states. [2021-11-04 14:22:37,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8595 to 8583. [2021-11-04 14:22:37,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8583 states, 7721 states have (on average 1.2507447221862453) internal successors, (9657), 7706 states have internal predecessors, (9657), 680 states have call successors, (680), 99 states have call predecessors, (680), 145 states have return successors, (2452), 792 states have call predecessors, (2452), 680 states have call successors, (2452) [2021-11-04 14:22:37,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8583 states to 8583 states and 12789 transitions. [2021-11-04 14:22:37,215 INFO L78 Accepts]: Start accepts. Automaton has 8583 states and 12789 transitions. Word has length 122 [2021-11-04 14:22:37,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:22:37,219 INFO L470 AbstractCegarLoop]: Abstraction has 8583 states and 12789 transitions. [2021-11-04 14:22:37,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 states have internal predecessors, (120), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 14:22:37,219 INFO L276 IsEmpty]: Start isEmpty. Operand 8583 states and 12789 transitions. [2021-11-04 14:22:37,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-04 14:22:37,223 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:22:37,223 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:22:37,253 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-04 14:22:37,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2021-11-04 14:22:37,431 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting destroy_asyncErr0ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:22:37,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:22:37,432 INFO L85 PathProgramCache]: Analyzing trace with hash -393854719, now seen corresponding path program 1 times [2021-11-04 14:22:37,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:22:37,432 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961140923] [2021-11-04 14:22:37,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:22:37,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:22:37,461 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-04 14:22:37,462 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [584084716] [2021-11-04 14:22:37,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:22:37,462 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-04 14:22:37,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 14:22:37,463 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-04 14:22:37,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-04 14:22:37,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:22:38,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 2247 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-04 14:22:38,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-04 14:22:38,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:22:38,312 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-04 14:22:38,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:22:38,312 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961140923] [2021-11-04 14:22:38,312 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-04 14:22:38,312 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [584084716] [2021-11-04 14:22:38,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [584084716] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:22:38,312 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:22:38,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-11-04 14:22:38,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402664048] [2021-11-04 14:22:38,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:22:38,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-04 14:22:38,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:22:38,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-04 14:22:38,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2021-11-04 14:22:38,314 INFO L87 Difference]: Start difference. First operand 8583 states and 12789 transitions. Second operand has 16 states, 16 states have (on average 7.5) internal successors, (120), 16 states have internal predecessors, (120), 1 states have call successors, (6), 1 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 14:22:42,172 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 14:22:43,592 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 14:23:23,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:23:23,285 INFO L93 Difference]: Finished difference Result 17175 states and 25587 transitions. [2021-11-04 14:23:23,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-04 14:23:23,286 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.5) internal successors, (120), 16 states have internal predecessors, (120), 1 states have call successors, (6), 1 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2021-11-04 14:23:23,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:23:23,317 INFO L225 Difference]: With dead ends: 17175 [2021-11-04 14:23:23,317 INFO L226 Difference]: Without dead ends: 8583 [2021-11-04 14:23:23,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 319.23ms TimeCoverageRelationStatistics Valid=222, Invalid=590, Unknown=0, NotChecked=0, Total=812 [2021-11-04 14:23:23,353 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 121 mSDsluCounter, 27157 mSDsCounter, 0 mSdLazyCounter, 25963 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37245.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 3420 SdHoareTripleChecker+Invalid, 25980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 48.17ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 25963 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43545.09ms IncrementalHoareTripleChecker+Time [2021-11-04 14:23:23,353 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 3420 Invalid, 25980 Unknown, 0 Unchecked, 48.17ms Time], IncrementalHoareTripleChecker [16 Valid, 25963 Invalid, 1 Unknown, 0 Unchecked, 43545.09ms Time] [2021-11-04 14:23:23,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8583 states. [2021-11-04 14:23:24,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8583 to 8583. [2021-11-04 14:23:24,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8583 states, 7721 states have (on average 1.2506152052842896) internal successors, (9656), 7706 states have internal predecessors, (9656), 680 states have call successors, (680), 99 states have call predecessors, (680), 145 states have return successors, (2452), 792 states have call predecessors, (2452), 680 states have call successors, (2452) [2021-11-04 14:23:24,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8583 states to 8583 states and 12788 transitions. [2021-11-04 14:23:24,308 INFO L78 Accepts]: Start accepts. Automaton has 8583 states and 12788 transitions. Word has length 126 [2021-11-04 14:23:24,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:23:24,308 INFO L470 AbstractCegarLoop]: Abstraction has 8583 states and 12788 transitions. [2021-11-04 14:23:24,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.5) internal successors, (120), 16 states have internal predecessors, (120), 1 states have call successors, (6), 1 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 14:23:24,308 INFO L276 IsEmpty]: Start isEmpty. Operand 8583 states and 12788 transitions. [2021-11-04 14:23:24,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-04 14:23:24,312 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:23:24,313 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:23:24,336 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-04 14:23:24,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-04 14:23:24,519 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting destroy_asyncErr0ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:23:24,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:23:24,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1486489921, now seen corresponding path program 1 times [2021-11-04 14:23:24,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:23:24,520 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392899075] [2021-11-04 14:23:24,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:23:24,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:23:24,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:23:24,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:23:24,601 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:23:24,601 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392899075] [2021-11-04 14:23:24,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392899075] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:23:24,601 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:23:24,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-04 14:23:24,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665745895] [2021-11-04 14:23:24,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:23:24,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-04 14:23:24,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:23:24,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-04 14:23:24,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-04 14:23:24,602 INFO L87 Difference]: Start difference. First operand 8583 states and 12788 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 1 states have call successors, (6), 1 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 14:23:26,697 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 14:23:39,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:23:39,452 INFO L93 Difference]: Finished difference Result 14929 states and 22309 transitions. [2021-11-04 14:23:39,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-04 14:23:39,452 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 1 states have call successors, (6), 1 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2021-11-04 14:23:39,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:23:39,480 INFO L225 Difference]: With dead ends: 14929 [2021-11-04 14:23:39,480 INFO L226 Difference]: Without dead ends: 8583 [2021-11-04 14:23:39,509 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 39.39ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-04 14:23:39,509 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 4472 mSDsluCounter, 4963 mSDsCounter, 0 mSdLazyCounter, 5893 mSolverCounterSat, 323 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11239.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4472 SdHoareTripleChecker+Valid, 1046 SdHoareTripleChecker+Invalid, 6216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.34ms SdHoareTripleChecker+Time, 323 IncrementalHoareTripleChecker+Valid, 5893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13851.70ms IncrementalHoareTripleChecker+Time [2021-11-04 14:23:39,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4472 Valid, 1046 Invalid, 6216 Unknown, 0 Unchecked, 16.34ms Time], IncrementalHoareTripleChecker [323 Valid, 5893 Invalid, 0 Unknown, 0 Unchecked, 13851.70ms Time] [2021-11-04 14:23:39,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8583 states. [2021-11-04 14:23:40,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8583 to 8583. [2021-11-04 14:23:40,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8583 states, 7721 states have (on average 1.2498381038725555) internal successors, (9650), 7706 states have internal predecessors, (9650), 680 states have call successors, (680), 99 states have call predecessors, (680), 145 states have return successors, (2452), 792 states have call predecessors, (2452), 680 states have call successors, (2452) [2021-11-04 14:23:40,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8583 states to 8583 states and 12782 transitions. [2021-11-04 14:23:40,507 INFO L78 Accepts]: Start accepts. Automaton has 8583 states and 12782 transitions. Word has length 126 [2021-11-04 14:23:40,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:23:40,508 INFO L470 AbstractCegarLoop]: Abstraction has 8583 states and 12782 transitions. [2021-11-04 14:23:40,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 1 states have call successors, (6), 1 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 14:23:40,508 INFO L276 IsEmpty]: Start isEmpty. Operand 8583 states and 12782 transitions. [2021-11-04 14:23:40,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-04 14:23:40,512 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:23:40,512 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:23:40,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-11-04 14:23:40,512 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting destroy_asyncErr0ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:23:40,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:23:40,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1015133571, now seen corresponding path program 1 times [2021-11-04 14:23:40,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:23:40,512 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39235843] [2021-11-04 14:23:40,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:23:40,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:23:40,541 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-04 14:23:40,542 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [884776990] [2021-11-04 14:23:40,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:23:40,542 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-04 14:23:40,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 14:23:40,543 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-04 14:23:40,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-04 14:23:41,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:23:41,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 2246 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-04 14:23:41,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-04 14:23:41,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:23:41,308 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-04 14:23:41,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:23:41,308 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39235843] [2021-11-04 14:23:41,308 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-04 14:23:41,308 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884776990] [2021-11-04 14:23:41,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [884776990] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:23:41,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:23:41,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-04 14:23:41,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679406498] [2021-11-04 14:23:41,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:23:41,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-04 14:23:41,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:23:41,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-04 14:23:41,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-04 14:23:41,309 INFO L87 Difference]: Start difference. First operand 8583 states and 12782 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 1 states have call successors, (6), 1 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 14:23:43,802 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 14:23:45,999 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 14:23:48,453 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.45s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 14:23:58,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:23:58,409 INFO L93 Difference]: Finished difference Result 14741 states and 22106 transitions. [2021-11-04 14:23:58,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-04 14:23:58,410 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 1 states have call successors, (6), 1 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2021-11-04 14:23:58,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:23:58,442 INFO L225 Difference]: With dead ends: 14741 [2021-11-04 14:23:58,442 INFO L226 Difference]: Without dead ends: 8581 [2021-11-04 14:23:58,474 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.40ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-04 14:23:58,474 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 2412 mSDsluCounter, 3169 mSDsCounter, 0 mSdLazyCounter, 4490 mSolverCounterSat, 160 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13292.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2412 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 4652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.45ms SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 4490 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15972.96ms IncrementalHoareTripleChecker+Time [2021-11-04 14:23:58,474 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2412 Valid, 752 Invalid, 4652 Unknown, 0 Unchecked, 16.45ms Time], IncrementalHoareTripleChecker [160 Valid, 4490 Invalid, 2 Unknown, 0 Unchecked, 15972.96ms Time] [2021-11-04 14:23:58,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8581 states. [2021-11-04 14:23:59,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8581 to 8581. [2021-11-04 14:23:59,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8581 states, 7719 states have (on average 1.2497732866951679) internal successors, (9647), 7704 states have internal predecessors, (9647), 680 states have call successors, (680), 99 states have call predecessors, (680), 145 states have return successors, (2452), 792 states have call predecessors, (2452), 680 states have call successors, (2452) [2021-11-04 14:23:59,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8581 states to 8581 states and 12779 transitions. [2021-11-04 14:23:59,572 INFO L78 Accepts]: Start accepts. Automaton has 8581 states and 12779 transitions. Word has length 126 [2021-11-04 14:23:59,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:23:59,573 INFO L470 AbstractCegarLoop]: Abstraction has 8581 states and 12779 transitions. [2021-11-04 14:23:59,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 1 states have call successors, (6), 1 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 14:23:59,573 INFO L276 IsEmpty]: Start isEmpty. Operand 8581 states and 12779 transitions. [2021-11-04 14:23:59,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-04 14:23:59,575 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:23:59,575 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:23:59,596 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-04 14:23:59,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-04 14:23:59,775 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting destroy_asyncErr0ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:23:59,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:23:59,776 INFO L85 PathProgramCache]: Analyzing trace with hash -685131123, now seen corresponding path program 1 times [2021-11-04 14:23:59,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:23:59,776 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444285235] [2021-11-04 14:23:59,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:23:59,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:23:59,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:23:59,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:23:59,950 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:23:59,950 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444285235] [2021-11-04 14:23:59,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444285235] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:23:59,951 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:23:59,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-04 14:23:59,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492705964] [2021-11-04 14:23:59,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:23:59,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-04 14:23:59,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:23:59,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-04 14:23:59,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-04 14:23:59,952 INFO L87 Difference]: Start difference. First operand 8581 states and 12779 transitions. Second operand has 7 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 14:24:20,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:24:20,491 INFO L93 Difference]: Finished difference Result 12730 states and 19768 transitions. [2021-11-04 14:24:20,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-04 14:24:20,492 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 128 [2021-11-04 14:24:20,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:24:20,508 INFO L225 Difference]: With dead ends: 12730 [2021-11-04 14:24:20,508 INFO L226 Difference]: Without dead ends: 4312 [2021-11-04 14:24:20,577 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 33.72ms TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-04 14:24:20,577 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 42 mSDsluCounter, 9342 mSDsCounter, 0 mSdLazyCounter, 10150 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16331.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 1196 SdHoareTripleChecker+Invalid, 10162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.95ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 10150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19835.16ms IncrementalHoareTripleChecker+Time [2021-11-04 14:24:20,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 1196 Invalid, 10162 Unknown, 0 Unchecked, 20.95ms Time], IncrementalHoareTripleChecker [12 Valid, 10150 Invalid, 0 Unknown, 0 Unchecked, 19835.16ms Time] [2021-11-04 14:24:20,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4312 states. [2021-11-04 14:24:21,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4312 to 4300. [2021-11-04 14:24:21,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4300 states, 3890 states have (on average 1.2375321336760925) internal successors, (4814), 3877 states have internal predecessors, (4814), 317 states have call successors, (317), 45 states have call predecessors, (317), 60 states have return successors, (730), 380 states have call predecessors, (730), 317 states have call successors, (730) [2021-11-04 14:24:21,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4300 states to 4300 states and 5861 transitions. [2021-11-04 14:24:21,071 INFO L78 Accepts]: Start accepts. Automaton has 4300 states and 5861 transitions. Word has length 128 [2021-11-04 14:24:21,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:24:21,071 INFO L470 AbstractCegarLoop]: Abstraction has 4300 states and 5861 transitions. [2021-11-04 14:24:21,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 14:24:21,071 INFO L276 IsEmpty]: Start isEmpty. Operand 4300 states and 5861 transitions. [2021-11-04 14:24:21,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-04 14:24:21,073 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:24:21,073 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:24:21,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-11-04 14:24:21,073 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:24:21,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:24:21,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1591477764, now seen corresponding path program 1 times [2021-11-04 14:24:21,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:24:21,073 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119843183] [2021-11-04 14:24:21,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:24:21,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:24:21,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:24:21,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:24:21,282 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:24:21,282 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119843183] [2021-11-04 14:24:21,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119843183] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:24:21,282 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:24:21,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-04 14:24:21,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87563409] [2021-11-04 14:24:21,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:24:21,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-04 14:24:21,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:24:21,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-04 14:24:21,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-04 14:24:21,283 INFO L87 Difference]: Start difference. First operand 4300 states and 5861 transitions. Second operand has 8 states, 8 states have (on average 15.5) internal successors, (124), 8 states have internal predecessors, (124), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 14:24:23,807 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 14:24:26,121 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 14:24:28,577 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.45s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 14:24:31,005 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.43s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 14:24:33,361 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 14:24:35,680 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 14:24:56,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:24:56,414 INFO L93 Difference]: Finished difference Result 10845 states and 14960 transitions. [2021-11-04 14:24:56,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-04 14:24:56,415 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.5) internal successors, (124), 8 states have internal predecessors, (124), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2021-11-04 14:24:56,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:24:56,462 INFO L225 Difference]: With dead ends: 10845 [2021-11-04 14:24:56,462 INFO L226 Difference]: Without dead ends: 6675 [2021-11-04 14:24:56,475 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 101.71ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-11-04 14:24:56,476 INFO L933 BasicCegarLoop]: 345 mSDtfsCounter, 6147 mSDsluCounter, 11695 mSDsCounter, 0 mSdLazyCounter, 12654 mSolverCounterSat, 438 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29475.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6147 SdHoareTripleChecker+Valid, 1977 SdHoareTripleChecker+Invalid, 13098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.05ms SdHoareTripleChecker+Time, 438 IncrementalHoareTripleChecker+Valid, 12654 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34069.24ms IncrementalHoareTripleChecker+Time [2021-11-04 14:24:56,476 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6147 Valid, 1977 Invalid, 13098 Unknown, 0 Unchecked, 29.05ms Time], IncrementalHoareTripleChecker [438 Valid, 12654 Invalid, 6 Unknown, 0 Unchecked, 34069.24ms Time] [2021-11-04 14:24:56,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6675 states. [2021-11-04 14:24:56,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6675 to 4312. [2021-11-04 14:24:56,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4312 states, 3902 states have (on average 1.2368016401845208) internal successors, (4826), 3889 states have internal predecessors, (4826), 317 states have call successors, (317), 45 states have call predecessors, (317), 60 states have return successors, (730), 380 states have call predecessors, (730), 317 states have call successors, (730) [2021-11-04 14:24:56,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4312 states to 4312 states and 5873 transitions. [2021-11-04 14:24:56,994 INFO L78 Accepts]: Start accepts. Automaton has 4312 states and 5873 transitions. Word has length 127 [2021-11-04 14:24:56,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:24:56,994 INFO L470 AbstractCegarLoop]: Abstraction has 4312 states and 5873 transitions. [2021-11-04 14:24:56,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.5) internal successors, (124), 8 states have internal predecessors, (124), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 14:24:56,994 INFO L276 IsEmpty]: Start isEmpty. Operand 4312 states and 5873 transitions. [2021-11-04 14:24:56,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-04 14:24:56,996 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:24:56,996 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:24:56,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-11-04 14:24:56,996 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:24:56,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:24:56,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1433478832, now seen corresponding path program 1 times [2021-11-04 14:24:56,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:24:56,996 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689043179] [2021-11-04 14:24:56,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:24:56,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:24:57,032 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-04 14:24:57,032 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [28808964] [2021-11-04 14:24:57,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:24:57,032 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-04 14:24:57,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 14:24:57,033 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-04 14:24:57,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-04 14:25:32,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:25:32,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 2464 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-04 14:25:32,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-04 14:25:33,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:25:33,066 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-04 14:25:33,066 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:25:33,066 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689043179] [2021-11-04 14:25:33,066 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-04 14:25:33,066 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [28808964] [2021-11-04 14:25:33,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [28808964] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:25:33,066 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:25:33,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-04 14:25:33,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469347572] [2021-11-04 14:25:33,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:25:33,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-04 14:25:33,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:25:33,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-04 14:25:33,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-04 14:25:33,068 INFO L87 Difference]: Start difference. First operand 4312 states and 5873 transitions. Second operand has 7 states, 6 states have (on average 21.666666666666668) internal successors, (130), 5 states have internal predecessors, (130), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 14:25:36,474 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 14:25:39,587 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 14:25:57,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:25:57,281 INFO L93 Difference]: Finished difference Result 8479 states and 12168 transitions. [2021-11-04 14:25:57,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-04 14:25:57,281 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 21.666666666666668) internal successors, (130), 5 states have internal predecessors, (130), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-11-04 14:25:57,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:25:57,298 INFO L225 Difference]: With dead ends: 8479 [2021-11-04 14:25:57,298 INFO L226 Difference]: Without dead ends: 4342 [2021-11-04 14:25:57,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 56.07ms TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-11-04 14:25:57,319 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 41 mSDsluCounter, 9407 mSDsCounter, 0 mSdLazyCounter, 10170 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19826.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 1212 SdHoareTripleChecker+Invalid, 10178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.99ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 10170 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23474.49ms IncrementalHoareTripleChecker+Time [2021-11-04 14:25:57,319 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 1212 Invalid, 10178 Unknown, 0 Unchecked, 20.99ms Time], IncrementalHoareTripleChecker [7 Valid, 10170 Invalid, 1 Unknown, 0 Unchecked, 23474.49ms Time] [2021-11-04 14:25:57,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4342 states. [2021-11-04 14:25:57,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4342 to 4312. [2021-11-04 14:25:57,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4312 states, 3902 states have (on average 1.2360328036904151) internal successors, (4823), 3889 states have internal predecessors, (4823), 317 states have call successors, (317), 45 states have call predecessors, (317), 60 states have return successors, (730), 380 states have call predecessors, (730), 317 states have call successors, (730) [2021-11-04 14:25:57,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4312 states to 4312 states and 5870 transitions. [2021-11-04 14:25:57,841 INFO L78 Accepts]: Start accepts. Automaton has 4312 states and 5870 transitions. Word has length 133 [2021-11-04 14:25:57,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:25:57,841 INFO L470 AbstractCegarLoop]: Abstraction has 4312 states and 5870 transitions. [2021-11-04 14:25:57,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 21.666666666666668) internal successors, (130), 5 states have internal predecessors, (130), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 14:25:57,842 INFO L276 IsEmpty]: Start isEmpty. Operand 4312 states and 5870 transitions. [2021-11-04 14:25:57,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-04 14:25:57,843 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:25:57,843 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:25:57,899 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-11-04 14:25:58,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-11-04 14:25:58,046 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:25:58,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:25:58,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1042286893, now seen corresponding path program 1 times [2021-11-04 14:25:58,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:25:58,046 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665151803] [2021-11-04 14:25:58,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:25:58,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:25:58,088 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-04 14:25:58,088 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [290173595] [2021-11-04 14:25:58,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:25:58,089 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-04 14:25:58,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 14:25:58,090 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-04 14:25:58,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-04 14:26:06,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:26:06,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 2453 conjuncts, 52 conjunts are in the unsatisfiable core [2021-11-04 14:26:06,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-04 14:26:06,222 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-04 14:26:06,223 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2021-11-04 14:26:06,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-04 14:26:06,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 23 [2021-11-04 14:26:06,447 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-04 14:26:06,447 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 16 [2021-11-04 14:26:06,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-04 14:26:06,461 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-04 14:26:06,461 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 10 [2021-11-04 14:26:06,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:26:06,549 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-04 14:26:06,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:26:06,549 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665151803] [2021-11-04 14:26:06,549 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-04 14:26:06,549 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [290173595] [2021-11-04 14:26:06,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [290173595] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:26:06,549 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:26:06,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-04 14:26:06,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129230500] [2021-11-04 14:26:06,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:26:06,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-04 14:26:06,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:26:06,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-04 14:26:06,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-04 14:26:06,550 INFO L87 Difference]: Start difference. First operand 4312 states and 5870 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 14:26:07,881 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 14:26:09,805 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 14:26:10,874 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 14:26:27,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:26:27,447 INFO L93 Difference]: Finished difference Result 8104 states and 11041 transitions. [2021-11-04 14:26:27,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-04 14:26:27,449 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-11-04 14:26:27,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:26:27,467 INFO L225 Difference]: With dead ends: 8104 [2021-11-04 14:26:27,467 INFO L226 Difference]: Without dead ends: 4315 [2021-11-04 14:26:27,503 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 90.38ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-04 14:26:27,504 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 42 mSDsluCounter, 5037 mSDsCounter, 0 mSdLazyCounter, 6687 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16474.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 6689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.92ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20085.68ms IncrementalHoareTripleChecker+Time [2021-11-04 14:26:27,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 835 Invalid, 6689 Unknown, 0 Unchecked, 20.92ms Time], IncrementalHoareTripleChecker [2 Valid, 6687 Invalid, 0 Unknown, 0 Unchecked, 20085.68ms Time] [2021-11-04 14:26:27,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4315 states. [2021-11-04 14:26:28,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4315 to 4313. [2021-11-04 14:26:28,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4313 states, 3903 states have (on average 1.2359723289777094) internal successors, (4824), 3890 states have internal predecessors, (4824), 317 states have call successors, (317), 45 states have call predecessors, (317), 60 states have return successors, (730), 380 states have call predecessors, (730), 317 states have call successors, (730) [2021-11-04 14:26:28,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4313 states to 4313 states and 5871 transitions. [2021-11-04 14:26:28,052 INFO L78 Accepts]: Start accepts. Automaton has 4313 states and 5871 transitions. Word has length 133 [2021-11-04 14:26:28,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:26:28,053 INFO L470 AbstractCegarLoop]: Abstraction has 4313 states and 5871 transitions. [2021-11-04 14:26:28,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 14:26:28,053 INFO L276 IsEmpty]: Start isEmpty. Operand 4313 states and 5871 transitions. [2021-11-04 14:26:28,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-11-04 14:26:28,054 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:26:28,055 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:26:28,102 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-04 14:26:28,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2021-11-04 14:26:28,255 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:26:28,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:26:28,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1866879769, now seen corresponding path program 1 times [2021-11-04 14:26:28,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:26:28,256 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491740101] [2021-11-04 14:26:28,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:26:28,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:26:28,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 14:26:28,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 14:26:28,899 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 14:26:28,899 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491740101] [2021-11-04 14:26:28,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491740101] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 14:26:28,899 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 14:26:28,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-04 14:26:28,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073293836] [2021-11-04 14:26:28,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 14:26:28,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-04 14:26:28,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 14:26:28,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-04 14:26:28,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-11-04 14:26:28,900 INFO L87 Difference]: Start difference. First operand 4313 states and 5871 transitions. Second operand has 11 states, 11 states have (on average 12.0) internal successors, (132), 11 states have internal predecessors, (132), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 14:26:31,053 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 14:26:33,067 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 14:26:35,439 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 14:26:37,774 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 14:26:40,110 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 14:26:42,338 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 14:26:43,871 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 14:26:46,277 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.41s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 14:27:16,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 14:27:16,317 INFO L93 Difference]: Finished difference Result 9683 states and 13382 transitions. [2021-11-04 14:27:16,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-04 14:27:16,318 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.0) internal successors, (132), 11 states have internal predecessors, (132), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2021-11-04 14:27:16,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 14:27:16,344 INFO L225 Difference]: With dead ends: 9683 [2021-11-04 14:27:16,344 INFO L226 Difference]: Without dead ends: 5920 [2021-11-04 14:27:16,357 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 147.81ms TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2021-11-04 14:27:16,360 INFO L933 BasicCegarLoop]: 279 mSDtfsCounter, 3950 mSDsluCounter, 17954 mSDsCounter, 0 mSdLazyCounter, 17907 mSolverCounterSat, 333 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39462.99ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3950 SdHoareTripleChecker+Valid, 2466 SdHoareTripleChecker+Invalid, 18245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 46.93ms SdHoareTripleChecker+Time, 333 IncrementalHoareTripleChecker+Valid, 17907 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46153.33ms IncrementalHoareTripleChecker+Time [2021-11-04 14:27:16,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3950 Valid, 2466 Invalid, 18245 Unknown, 0 Unchecked, 46.93ms Time], IncrementalHoareTripleChecker [333 Valid, 17907 Invalid, 5 Unknown, 0 Unchecked, 46153.33ms Time] [2021-11-04 14:27:16,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5920 states. [2021-11-04 14:27:16,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5920 to 4329. [2021-11-04 14:27:16,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4329 states, 3919 states have (on average 1.2350089308497065) internal successors, (4840), 3906 states have internal predecessors, (4840), 317 states have call successors, (317), 45 states have call predecessors, (317), 60 states have return successors, (730), 380 states have call predecessors, (730), 317 states have call successors, (730) [2021-11-04 14:27:16,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4329 states to 4329 states and 5887 transitions. [2021-11-04 14:27:16,937 INFO L78 Accepts]: Start accepts. Automaton has 4329 states and 5887 transitions. Word has length 136 [2021-11-04 14:27:16,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 14:27:16,938 INFO L470 AbstractCegarLoop]: Abstraction has 4329 states and 5887 transitions. [2021-11-04 14:27:16,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.0) internal successors, (132), 11 states have internal predecessors, (132), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 14:27:16,938 INFO L276 IsEmpty]: Start isEmpty. Operand 4329 states and 5887 transitions. [2021-11-04 14:27:16,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-11-04 14:27:16,939 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 14:27:16,939 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 14:27:16,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-11-04 14:27:16,940 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION === [change_modeErr0ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr1ASSERT_VIOLATIONERROR_FUNCTION, change_modeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 125 more)] === [2021-11-04 14:27:16,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 14:27:16,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1940917469, now seen corresponding path program 1 times [2021-11-04 14:27:16,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 14:27:16,940 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133915205] [2021-11-04 14:27:16,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:27:16,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 14:27:16,975 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-04 14:27:16,975 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1513462071] [2021-11-04 14:27:16,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 14:27:16,975 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-04 14:27:16,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 14:27:16,979 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-04 14:27:16,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process Killed by 15