./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--yurex.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 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--yurex.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 1df63cbd0336246e03c8a08fdd7cd62b20ae4ea405c1b7aaed1bb78f9f0fa189 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 13:21:56,044 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 13:21:56,046 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 13:21:56,068 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 13:21:56,068 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 13:21:56,069 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 13:21:56,070 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 13:21:56,070 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 13:21:56,076 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 13:21:56,080 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 13:21:56,081 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 13:21:56,082 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 13:21:56,083 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 13:21:56,084 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 13:21:56,085 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 13:21:56,085 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 13:21:56,086 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 13:21:56,086 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 13:21:56,087 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 13:21:56,088 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 13:21:56,089 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 13:21:56,090 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 13:21:56,090 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 13:21:56,091 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 13:21:56,092 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 13:21:56,096 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 13:21:56,096 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 13:21:56,097 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 13:21:56,098 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 13:21:56,099 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 13:21:56,099 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 13:21:56,099 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 13:21:56,100 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 13:21:56,101 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 13:21:56,101 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 13:21:56,101 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 13:21:56,102 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 13:21:56,102 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 13:21:56,102 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 13:21:56,102 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 13:21:56,103 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 13:21:56,104 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 13:21:56,120 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 13:21:56,126 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 13:21:56,127 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 13:21:56,127 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 13:21:56,128 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 13:21:56,128 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 13:21:56,128 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 13:21:56,128 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 13:21:56,129 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 13:21:56,129 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 13:21:56,130 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 13:21:56,130 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 13:21:56,130 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 13:21:56,130 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 13:21:56,130 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 13:21:56,130 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 13:21:56,131 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 13:21:56,131 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 13:21:56,131 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 13:21:56,131 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 13:21:56,131 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 13:21:56,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 13:21:56,131 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 13:21:56,132 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 13:21:56,132 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 13:21:56,132 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 13:21:56,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 13:21:56,133 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 13:21:56,134 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 13:21:56,134 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 13:21:56,134 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 13:21:56,134 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1df63cbd0336246e03c8a08fdd7cd62b20ae4ea405c1b7aaed1bb78f9f0fa189 [2021-11-17 13:21:56,342 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 13:21:56,362 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 13:21:56,364 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 13:21:56,365 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 13:21:56,366 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 13:21:56,367 INFO L432 ainManager$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--yurex.ko.cil.i [2021-11-17 13:21:56,420 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b4cb74f0/6e2cc996405d4b28ab38627530e514ad/FLAGed94ae480 [2021-11-17 13:21:56,958 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 13:21:56,958 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--yurex.ko.cil.i [2021-11-17 13:21:56,988 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b4cb74f0/6e2cc996405d4b28ab38627530e514ad/FLAGed94ae480 [2021-11-17 13:21:57,182 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b4cb74f0/6e2cc996405d4b28ab38627530e514ad [2021-11-17 13:21:57,184 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 13:21:57,185 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 13:21:57,188 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 13:21:57,188 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 13:21:57,190 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 13:21:57,191 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 01:21:57" (1/1) ... [2021-11-17 13:21:57,191 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d60d54e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:21:57, skipping insertion in model container [2021-11-17 13:21:57,191 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 01:21:57" (1/1) ... [2021-11-17 13:21:57,205 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 13:21:57,288 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 13:21:58,956 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[259112,259125] [2021-11-17 13:21:58,959 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[259257,259270] [2021-11-17 13:21:58,960 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[259403,259416] [2021-11-17 13:21:58,960 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[259568,259581] [2021-11-17 13:21:58,960 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[259726,259739] [2021-11-17 13:21:58,965 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[259884,259897] [2021-11-17 13:21:58,966 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[260042,260055] [2021-11-17 13:21:58,966 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[260202,260215] [2021-11-17 13:21:58,966 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[260361,260374] [2021-11-17 13:21:58,967 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[260500,260513] [2021-11-17 13:21:58,967 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[260642,260655] [2021-11-17 13:21:58,968 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[260791,260804] [2021-11-17 13:21:58,969 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[260930,260943] [2021-11-17 13:21:58,969 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[261085,261098] [2021-11-17 13:21:58,969 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[261245,261258] [2021-11-17 13:21:58,970 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[261396,261409] [2021-11-17 13:21:58,970 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[261547,261560] [2021-11-17 13:21:58,970 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[261699,261712] [2021-11-17 13:21:58,971 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[261848,261861] [2021-11-17 13:21:58,972 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[261996,262009] [2021-11-17 13:21:58,972 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[262153,262166] [2021-11-17 13:21:58,972 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[262302,262315] [2021-11-17 13:21:58,973 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[262458,262471] [2021-11-17 13:21:58,973 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[262611,262624] [2021-11-17 13:21:58,974 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[262757,262770] [2021-11-17 13:21:58,975 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[262900,262913] [2021-11-17 13:21:58,975 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[263052,263065] [2021-11-17 13:21:58,976 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[263198,263211] [2021-11-17 13:21:58,976 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[263343,263356] [2021-11-17 13:21:58,976 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[263497,263510] [2021-11-17 13:21:58,976 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[263648,263661] [2021-11-17 13:21:58,977 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[263803,263816] [2021-11-17 13:21:58,977 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[263955,263968] [2021-11-17 13:21:58,977 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[264110,264123] [2021-11-17 13:21:58,978 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[264274,264287] [2021-11-17 13:21:58,978 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[264430,264443] [2021-11-17 13:21:58,978 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[264594,264607] [2021-11-17 13:21:58,979 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[264736,264749] [2021-11-17 13:21:58,979 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[264894,264907] [2021-11-17 13:21:58,979 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[265061,265074] [2021-11-17 13:21:58,980 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[265220,265233] [2021-11-17 13:21:58,980 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[265379,265392] [2021-11-17 13:21:58,980 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[265528,265541] [2021-11-17 13:21:58,980 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[265675,265688] [2021-11-17 13:21:58,981 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[265814,265827] [2021-11-17 13:21:58,981 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[265977,265990] [2021-11-17 13:21:58,982 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[266143,266156] [2021-11-17 13:21:58,983 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[266307,266320] [2021-11-17 13:21:58,983 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[266472,266485] [2021-11-17 13:21:58,983 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[266637,266650] [2021-11-17 13:21:58,983 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[266803,266816] [2021-11-17 13:21:58,984 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[266968,266981] [2021-11-17 13:21:58,984 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[267135,267148] [2021-11-17 13:21:58,984 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[267295,267308] [2021-11-17 13:21:58,984 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[267457,267470] [2021-11-17 13:21:58,985 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[267616,267629] [2021-11-17 13:21:58,985 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[267762,267775] [2021-11-17 13:21:58,985 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[267905,267918] [2021-11-17 13:21:58,986 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[268049,268062] [2021-11-17 13:21:58,986 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[268192,268205] [2021-11-17 13:21:58,986 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[268336,268349] [2021-11-17 13:21:58,987 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[268477,268490] [2021-11-17 13:21:58,988 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[268615,268628] [2021-11-17 13:21:58,988 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[268773,268786] [2021-11-17 13:21:58,988 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[268932,268945] [2021-11-17 13:21:58,988 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[269088,269101] [2021-11-17 13:21:58,989 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[269237,269250] [2021-11-17 13:21:58,989 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[269389,269402] [2021-11-17 13:21:58,989 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[269540,269553] [2021-11-17 13:21:58,989 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[269689,269702] [2021-11-17 13:21:58,990 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[269841,269854] [2021-11-17 13:21:58,990 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[269989,270002] [2021-11-17 13:21:58,990 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[270142,270155] [2021-11-17 13:21:58,991 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[270293,270306] [2021-11-17 13:21:58,991 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[270443,270456] [2021-11-17 13:21:58,991 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[270590,270603] [2021-11-17 13:21:58,991 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[270741,270754] [2021-11-17 13:21:58,992 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[270892,270905] [2021-11-17 13:21:58,992 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[271040,271053] [2021-11-17 13:21:58,992 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[271206,271219] [2021-11-17 13:21:58,992 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[271375,271388] [2021-11-17 13:21:58,993 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[271542,271555] [2021-11-17 13:21:58,993 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[271710,271723] [2021-11-17 13:21:58,993 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[271860,271873] [2021-11-17 13:21:58,994 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[272007,272020] [2021-11-17 13:21:58,994 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[272168,272181] [2021-11-17 13:21:58,995 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[272338,272351] [2021-11-17 13:21:58,995 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[272500,272513] [2021-11-17 13:21:59,001 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 13:21:59,023 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 13:21:59,184 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[259112,259125] [2021-11-17 13:21:59,185 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[259257,259270] [2021-11-17 13:21:59,186 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[259403,259416] [2021-11-17 13:21:59,186 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[259568,259581] [2021-11-17 13:21:59,187 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[259726,259739] [2021-11-17 13:21:59,191 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[259884,259897] [2021-11-17 13:21:59,192 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[260042,260055] [2021-11-17 13:21:59,192 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[260202,260215] [2021-11-17 13:21:59,192 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[260361,260374] [2021-11-17 13:21:59,193 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[260500,260513] [2021-11-17 13:21:59,193 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[260642,260655] [2021-11-17 13:21:59,194 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[260791,260804] [2021-11-17 13:21:59,194 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[260930,260943] [2021-11-17 13:21:59,194 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[261085,261098] [2021-11-17 13:21:59,194 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[261245,261258] [2021-11-17 13:21:59,195 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[261396,261409] [2021-11-17 13:21:59,195 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[261547,261560] [2021-11-17 13:21:59,195 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[261699,261712] [2021-11-17 13:21:59,195 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[261848,261861] [2021-11-17 13:21:59,196 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[261996,262009] [2021-11-17 13:21:59,196 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[262153,262166] [2021-11-17 13:21:59,196 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[262302,262315] [2021-11-17 13:21:59,197 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[262458,262471] [2021-11-17 13:21:59,197 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[262611,262624] [2021-11-17 13:21:59,198 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[262757,262770] [2021-11-17 13:21:59,198 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[262900,262913] [2021-11-17 13:21:59,198 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[263052,263065] [2021-11-17 13:21:59,198 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[263198,263211] [2021-11-17 13:21:59,199 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[263343,263356] [2021-11-17 13:21:59,199 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[263497,263510] [2021-11-17 13:21:59,199 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[263648,263661] [2021-11-17 13:21:59,199 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[263803,263816] [2021-11-17 13:21:59,200 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[263955,263968] [2021-11-17 13:21:59,200 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[264110,264123] [2021-11-17 13:21:59,201 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[264274,264287] [2021-11-17 13:21:59,201 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[264430,264443] [2021-11-17 13:21:59,201 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[264594,264607] [2021-11-17 13:21:59,201 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[264736,264749] [2021-11-17 13:21:59,202 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[264894,264907] [2021-11-17 13:21:59,202 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[265061,265074] [2021-11-17 13:21:59,203 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[265220,265233] [2021-11-17 13:21:59,203 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[265379,265392] [2021-11-17 13:21:59,204 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[265528,265541] [2021-11-17 13:21:59,204 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[265675,265688] [2021-11-17 13:21:59,205 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[265814,265827] [2021-11-17 13:21:59,205 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[265977,265990] [2021-11-17 13:21:59,205 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[266143,266156] [2021-11-17 13:21:59,206 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[266307,266320] [2021-11-17 13:21:59,206 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[266472,266485] [2021-11-17 13:21:59,206 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[266637,266650] [2021-11-17 13:21:59,207 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[266803,266816] [2021-11-17 13:21:59,207 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[266968,266981] [2021-11-17 13:21:59,207 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[267135,267148] [2021-11-17 13:21:59,207 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[267295,267308] [2021-11-17 13:21:59,208 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[267457,267470] [2021-11-17 13:21:59,208 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[267616,267629] [2021-11-17 13:21:59,209 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[267762,267775] [2021-11-17 13:21:59,209 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[267905,267918] [2021-11-17 13:21:59,209 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[268049,268062] [2021-11-17 13:21:59,210 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[268192,268205] [2021-11-17 13:21:59,211 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[268336,268349] [2021-11-17 13:21:59,212 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[268477,268490] [2021-11-17 13:21:59,212 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[268615,268628] [2021-11-17 13:21:59,214 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[268773,268786] [2021-11-17 13:21:59,214 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[268932,268945] [2021-11-17 13:21:59,215 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[269088,269101] [2021-11-17 13:21:59,215 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[269237,269250] [2021-11-17 13:21:59,216 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[269389,269402] [2021-11-17 13:21:59,219 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[269540,269553] [2021-11-17 13:21:59,220 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[269689,269702] [2021-11-17 13:21:59,220 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[269841,269854] [2021-11-17 13:21:59,220 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[269989,270002] [2021-11-17 13:21:59,224 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[270142,270155] [2021-11-17 13:21:59,224 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[270293,270306] [2021-11-17 13:21:59,225 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[270443,270456] [2021-11-17 13:21:59,225 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[270590,270603] [2021-11-17 13:21:59,225 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[270741,270754] [2021-11-17 13:21:59,225 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[270892,270905] [2021-11-17 13:21:59,226 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[271040,271053] [2021-11-17 13:21:59,227 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[271206,271219] [2021-11-17 13:21:59,227 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[271375,271388] [2021-11-17 13:21:59,228 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[271542,271555] [2021-11-17 13:21:59,228 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[271710,271723] [2021-11-17 13:21:59,228 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[271860,271873] [2021-11-17 13:21:59,229 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[272007,272020] [2021-11-17 13:21:59,229 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[272168,272181] [2021-11-17 13:21:59,229 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[272338,272351] [2021-11-17 13:21:59,229 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i[272500,272513] [2021-11-17 13:21:59,232 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 13:21:59,325 INFO L208 MainTranslator]: Completed translation [2021-11-17 13:21:59,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:21:59 WrapperNode [2021-11-17 13:21:59,326 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 13:21:59,326 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 13:21:59,327 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 13:21:59,327 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 13:21:59,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:21:59" (1/1) ... [2021-11-17 13:21:59,395 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:21:59" (1/1) ... [2021-11-17 13:21:59,512 INFO L137 Inliner]: procedures = 508, calls = 1237, calls flagged for inlining = 228, calls inlined = 154, statements flattened = 2693 [2021-11-17 13:21:59,512 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 13:21:59,513 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 13:21:59,514 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 13:21:59,514 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 13:21:59,520 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:21:59" (1/1) ... [2021-11-17 13:21:59,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:21:59" (1/1) ... [2021-11-17 13:21:59,537 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:21:59" (1/1) ... [2021-11-17 13:21:59,538 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:21:59" (1/1) ... [2021-11-17 13:21:59,596 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:21:59" (1/1) ... [2021-11-17 13:21:59,613 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:21:59" (1/1) ... [2021-11-17 13:21:59,634 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:21:59" (1/1) ... [2021-11-17 13:21:59,654 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 13:21:59,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 13:21:59,655 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 13:21:59,655 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 13:21:59,656 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:21:59" (1/1) ... [2021-11-17 13:21:59,663 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 13:21:59,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 13:21:59,692 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) [2021-11-17 13:21:59,710 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 [2021-11-17 13:21:59,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-17 13:21:59,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-17 13:21:59,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-17 13:21:59,723 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-17 13:21:59,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 13:21:59,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 13:21:59,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-17 13:21:59,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-17 13:21:59,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_usb_alloc_coherent [2021-11-17 13:21:59,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_usb_alloc_coherent [2021-11-17 13:21:59,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_usb_yurex [2021-11-17 13:21:59,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_usb_yurex [2021-11-17 13:21:59,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-17 13:21:59,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-17 13:21:59,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-17 13:21:59,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-17 13:21:59,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-17 13:21:59,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-17 13:21:59,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-17 13:21:59,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-17 13:21:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-17 13:21:59,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-17 13:21:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-17 13:21:59,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-17 13:21:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 13:21:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-17 13:21:59,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-17 13:21:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-17 13:21:59,728 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-17 13:21:59,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 13:21:59,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-17 13:21:59,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-17 13:21:59,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-17 13:21:59,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-17 13:21:59,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-17 13:21:59,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-17 13:21:59,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 13:21:59,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-17 13:21:59,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-17 13:21:59,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-17 13:21:59,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-17 13:21:59,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-17 13:21:59,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-17 13:21:59,729 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-11-17 13:21:59,729 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-11-17 13:21:59,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-17 13:21:59,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-17 13:21:59,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-17 13:21:59,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-17 13:21:59,730 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-17 13:21:59,730 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-17 13:21:59,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-17 13:21:59,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-17 13:21:59,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 13:21:59,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 13:21:59,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-17 13:21:59,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-17 13:21:59,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 13:21:59,731 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-17 13:21:59,732 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 13:21:59,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 13:21:59,732 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-11-17 13:21:59,732 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-11-17 13:21:59,732 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-17 13:21:59,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-17 13:21:59,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_irq_check_alloc_flags [2021-11-17 13:21:59,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_irq_check_alloc_flags [2021-11-17 13:21:59,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_io_mutex_of_usb_yurex [2021-11-17 13:21:59,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_io_mutex_of_usb_yurex [2021-11-17 13:21:59,733 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-17 13:21:59,733 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-17 13:21:59,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-17 13:21:59,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-17 13:21:59,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 13:21:59,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 13:21:59,736 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-11-17 13:21:59,737 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-11-17 13:21:59,737 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-11-17 13:21:59,737 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-11-17 13:21:59,737 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 13:21:59,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 13:21:59,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-17 13:21:59,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-17 13:21:59,738 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-17 13:21:59,738 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-17 13:21:59,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-17 13:21:59,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-17 13:21:59,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_free_urb [2021-11-17 13:21:59,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_free_urb [2021-11-17 13:21:59,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-17 13:21:59,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-17 13:21:59,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 13:21:59,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-17 13:21:59,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-17 13:21:59,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 13:21:59,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_usb_free_coherent [2021-11-17 13:21:59,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_usb_free_coherent [2021-11-17 13:21:59,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_101 [2021-11-17 13:21:59,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_101 [2021-11-17 13:21:59,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 13:21:59,740 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-17 13:21:59,740 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-17 13:21:59,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-17 13:21:59,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-17 13:21:59,741 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-11-17 13:21:59,741 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-11-17 13:21:59,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-17 13:21:59,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-17 13:21:59,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-17 13:21:59,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-17 13:21:59,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2021-11-17 13:21:59,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2021-11-17 13:21:59,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_alloc_urb [2021-11-17 13:21:59,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_alloc_urb [2021-11-17 13:21:59,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-17 13:21:59,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-17 13:21:59,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-17 13:21:59,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-17 13:21:59,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-17 13:21:59,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-17 13:21:59,743 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-17 13:21:59,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-17 13:21:59,743 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-17 13:21:59,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-17 13:21:59,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-17 13:21:59,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-17 13:21:59,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_io_mutex_of_usb_yurex [2021-11-17 13:21:59,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_io_mutex_of_usb_yurex [2021-11-17 13:21:59,744 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-17 13:21:59,744 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-17 13:21:59,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-17 13:21:59,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-17 13:21:59,744 INFO L130 BoogieDeclarations]: Found specification of procedure kill_fasync [2021-11-17 13:21:59,744 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_fasync [2021-11-17 13:21:59,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 13:21:59,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-17 13:21:59,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-17 13:21:59,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 13:21:59,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 13:21:59,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-17 13:21:59,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-17 13:21:59,745 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-17 13:21:59,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-17 13:21:59,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-17 13:21:59,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-17 13:21:59,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-17 13:21:59,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-17 13:21:59,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 13:21:59,746 INFO L130 BoogieDeclarations]: Found specification of procedure yurex_disconnect [2021-11-17 13:21:59,746 INFO L138 BoogieDeclarations]: Found implementation of procedure yurex_disconnect [2021-11-17 13:22:00,203 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 13:22:00,205 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 13:22:00,580 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 13:22:02,431 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 13:22:02,449 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 13:22:02,449 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-17 13:22:02,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 01:22:02 BoogieIcfgContainer [2021-11-17 13:22:02,452 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 13:22:02,453 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 13:22:02,453 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 13:22:02,455 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 13:22:02,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 01:21:57" (1/3) ... [2021-11-17 13:22:02,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64614006 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 01:22:02, skipping insertion in model container [2021-11-17 13:22:02,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:21:59" (2/3) ... [2021-11-17 13:22:02,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64614006 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 01:22:02, skipping insertion in model container [2021-11-17 13:22:02,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 01:22:02" (3/3) ... [2021-11-17 13:22:02,459 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--usb--misc--yurex.ko.cil.i [2021-11-17 13:22:02,462 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 13:22:02,463 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2021-11-17 13:22:02,514 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 13:22:02,522 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 [2021-11-17 13:22:02,522 INFO L340 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2021-11-17 13:22:02,550 INFO L276 IsEmpty]: Start isEmpty. Operand has 976 states, 651 states have (on average 1.294930875576037) internal successors, (843), 702 states have internal predecessors, (843), 224 states have call successors, (224), 68 states have call predecessors, (224), 67 states have return successors, (219), 216 states have call predecessors, (219), 219 states have call successors, (219) [2021-11-17 13:22:02,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-17 13:22:02,556 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 13:22:02,557 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 13:22:02,557 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-17 13:22:02,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 13:22:02,561 INFO L85 PathProgramCache]: Analyzing trace with hash 150450018, now seen corresponding path program 1 times [2021-11-17 13:22:02,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 13:22:02,567 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072998428] [2021-11-17 13:22:02,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 13:22:02,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 13:22:02,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:02,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 13:22:02,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:02,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 13:22:02,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:02,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 13:22:02,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:02,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 13:22:02,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:02,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 13:22:02,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:03,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 13:22:03,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:03,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 13:22:03,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:03,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:03,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:03,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 13:22:03,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:03,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 13:22:03,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:03,066 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-17 13:22:03,067 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 13:22:03,067 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072998428] [2021-11-17 13:22:03,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072998428] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 13:22:03,068 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 13:22:03,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 13:22:03,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010385480] [2021-11-17 13:22:03,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 13:22:03,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 13:22:03,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 13:22:03,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 13:22:03,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 13:22:03,093 INFO L87 Difference]: Start difference. First operand has 976 states, 651 states have (on average 1.294930875576037) internal successors, (843), 702 states have internal predecessors, (843), 224 states have call successors, (224), 68 states have call predecessors, (224), 67 states have return successors, (219), 216 states have call predecessors, (219), 219 states have call successors, (219) Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-17 13:22:04,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 13:22:04,996 INFO L93 Difference]: Finished difference Result 1903 states and 2593 transitions. [2021-11-17 13:22:04,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 13:22:04,998 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 71 [2021-11-17 13:22:05,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 13:22:05,028 INFO L225 Difference]: With dead ends: 1903 [2021-11-17 13:22:05,028 INFO L226 Difference]: Without dead ends: 957 [2021-11-17 13:22:05,038 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-17 13:22:05,040 INFO L933 BasicCegarLoop]: 1185 mSDtfsCounter, 1754 mSDsluCounter, 1571 mSDsCounter, 0 mSdLazyCounter, 846 mSolverCounterSat, 670 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1908 SdHoareTripleChecker+Valid, 2756 SdHoareTripleChecker+Invalid, 1516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 670 IncrementalHoareTripleChecker+Valid, 846 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-17 13:22:05,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1908 Valid, 2756 Invalid, 1516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [670 Valid, 846 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-17 13:22:05,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 957 states. [2021-11-17 13:22:05,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 957 to 957. [2021-11-17 13:22:05,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 957 states, 640 states have (on average 1.2328125) internal successors, (789), 686 states have internal predecessors, (789), 219 states have call successors, (219), 67 states have call predecessors, (219), 66 states have return successors, (217), 214 states have call predecessors, (217), 217 states have call successors, (217) [2021-11-17 13:22:05,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 957 states to 957 states and 1225 transitions. [2021-11-17 13:22:05,180 INFO L78 Accepts]: Start accepts. Automaton has 957 states and 1225 transitions. Word has length 71 [2021-11-17 13:22:05,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 13:22:05,182 INFO L470 AbstractCegarLoop]: Abstraction has 957 states and 1225 transitions. [2021-11-17 13:22:05,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-17 13:22:05,182 INFO L276 IsEmpty]: Start isEmpty. Operand 957 states and 1225 transitions. [2021-11-17 13:22:05,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-17 13:22:05,185 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 13:22:05,185 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 13:22:05,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 13:22:05,185 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-17 13:22:05,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 13:22:05,186 INFO L85 PathProgramCache]: Analyzing trace with hash 395296491, now seen corresponding path program 1 times [2021-11-17 13:22:05,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 13:22:05,186 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505048930] [2021-11-17 13:22:05,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 13:22:05,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 13:22:05,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:05,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 13:22:05,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:05,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 13:22:05,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:05,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 13:22:05,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:05,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 13:22:05,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:05,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 13:22:05,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:05,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 13:22:05,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:05,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 13:22:05,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:05,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:05,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:05,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 13:22:05,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:05,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 13:22:05,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:05,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 13:22:05,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:05,410 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-17 13:22:05,411 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 13:22:05,411 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505048930] [2021-11-17 13:22:05,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505048930] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 13:22:05,411 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 13:22:05,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 13:22:05,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559970185] [2021-11-17 13:22:05,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 13:22:05,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 13:22:05,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 13:22:05,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 13:22:05,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 13:22:05,414 INFO L87 Difference]: Start difference. First operand 957 states and 1225 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-17 13:22:07,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 13:22:07,051 INFO L93 Difference]: Finished difference Result 957 states and 1225 transitions. [2021-11-17 13:22:07,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 13:22:07,052 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 77 [2021-11-17 13:22:07,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 13:22:07,059 INFO L225 Difference]: With dead ends: 957 [2021-11-17 13:22:07,059 INFO L226 Difference]: Without dead ends: 955 [2021-11-17 13:22:07,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-17 13:22:07,062 INFO L933 BasicCegarLoop]: 1165 mSDtfsCounter, 1720 mSDsluCounter, 1549 mSDsCounter, 0 mSdLazyCounter, 834 mSolverCounterSat, 660 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1871 SdHoareTripleChecker+Valid, 2714 SdHoareTripleChecker+Invalid, 1494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 660 IncrementalHoareTripleChecker+Valid, 834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-17 13:22:07,062 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1871 Valid, 2714 Invalid, 1494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [660 Valid, 834 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-17 13:22:07,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2021-11-17 13:22:07,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 955. [2021-11-17 13:22:07,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 955 states, 639 states have (on average 1.2316118935837246) internal successors, (787), 684 states have internal predecessors, (787), 219 states have call successors, (219), 67 states have call predecessors, (219), 66 states have return successors, (217), 214 states have call predecessors, (217), 217 states have call successors, (217) [2021-11-17 13:22:07,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 955 states to 955 states and 1223 transitions. [2021-11-17 13:22:07,129 INFO L78 Accepts]: Start accepts. Automaton has 955 states and 1223 transitions. Word has length 77 [2021-11-17 13:22:07,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 13:22:07,129 INFO L470 AbstractCegarLoop]: Abstraction has 955 states and 1223 transitions. [2021-11-17 13:22:07,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-17 13:22:07,130 INFO L276 IsEmpty]: Start isEmpty. Operand 955 states and 1223 transitions. [2021-11-17 13:22:07,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-17 13:22:07,131 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 13:22:07,131 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 13:22:07,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 13:22:07,131 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-17 13:22:07,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 13:22:07,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1728180818, now seen corresponding path program 1 times [2021-11-17 13:22:07,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 13:22:07,132 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030850117] [2021-11-17 13:22:07,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 13:22:07,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 13:22:07,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:07,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 13:22:07,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:07,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 13:22:07,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:07,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 13:22:07,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:07,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 13:22:07,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:07,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 13:22:07,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:07,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 13:22:07,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:07,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 13:22:07,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:07,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:07,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:07,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 13:22:07,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:07,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 13:22:07,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:07,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 13:22:07,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:07,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 13:22:07,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:07,272 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-17 13:22:07,273 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 13:22:07,273 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030850117] [2021-11-17 13:22:07,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030850117] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 13:22:07,273 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 13:22:07,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 13:22:07,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530840564] [2021-11-17 13:22:07,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 13:22:07,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 13:22:07,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 13:22:07,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 13:22:07,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 13:22:07,275 INFO L87 Difference]: Start difference. First operand 955 states and 1223 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-17 13:22:08,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 13:22:08,874 INFO L93 Difference]: Finished difference Result 955 states and 1223 transitions. [2021-11-17 13:22:08,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 13:22:08,875 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 83 [2021-11-17 13:22:08,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 13:22:08,879 INFO L225 Difference]: With dead ends: 955 [2021-11-17 13:22:08,879 INFO L226 Difference]: Without dead ends: 953 [2021-11-17 13:22:08,880 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-17 13:22:08,880 INFO L933 BasicCegarLoop]: 1163 mSDtfsCounter, 1714 mSDsluCounter, 1549 mSDsCounter, 0 mSdLazyCounter, 832 mSolverCounterSat, 660 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1864 SdHoareTripleChecker+Valid, 2712 SdHoareTripleChecker+Invalid, 1492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 660 IncrementalHoareTripleChecker+Valid, 832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-17 13:22:08,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1864 Valid, 2712 Invalid, 1492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [660 Valid, 832 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-17 13:22:08,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 953 states. [2021-11-17 13:22:08,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 953 to 953. [2021-11-17 13:22:08,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 953 states, 638 states have (on average 1.2304075235109717) internal successors, (785), 682 states have internal predecessors, (785), 219 states have call successors, (219), 67 states have call predecessors, (219), 66 states have return successors, (217), 214 states have call predecessors, (217), 217 states have call successors, (217) [2021-11-17 13:22:08,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 953 states to 953 states and 1221 transitions. [2021-11-17 13:22:08,913 INFO L78 Accepts]: Start accepts. Automaton has 953 states and 1221 transitions. Word has length 83 [2021-11-17 13:22:08,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 13:22:08,913 INFO L470 AbstractCegarLoop]: Abstraction has 953 states and 1221 transitions. [2021-11-17 13:22:08,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-17 13:22:08,914 INFO L276 IsEmpty]: Start isEmpty. Operand 953 states and 1221 transitions. [2021-11-17 13:22:08,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-17 13:22:08,915 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 13:22:08,915 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 13:22:08,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 13:22:08,915 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-17 13:22:08,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 13:22:08,916 INFO L85 PathProgramCache]: Analyzing trace with hash -2012755007, now seen corresponding path program 1 times [2021-11-17 13:22:08,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 13:22:08,916 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563124561] [2021-11-17 13:22:08,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 13:22:08,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 13:22:08,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:09,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 13:22:09,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:09,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 13:22:09,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:09,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 13:22:09,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:09,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 13:22:09,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:09,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 13:22:09,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:09,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 13:22:09,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:09,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 13:22:09,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:09,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:09,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:09,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 13:22:09,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:09,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 13:22:09,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:09,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 13:22:09,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:09,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 13:22:09,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:09,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 13:22:09,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:09,171 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-17 13:22:09,171 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 13:22:09,171 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563124561] [2021-11-17 13:22:09,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563124561] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 13:22:09,171 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 13:22:09,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 13:22:09,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210506007] [2021-11-17 13:22:09,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 13:22:09,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 13:22:09,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 13:22:09,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 13:22:09,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 13:22:09,173 INFO L87 Difference]: Start difference. First operand 953 states and 1221 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-17 13:22:11,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 13:22:11,224 INFO L93 Difference]: Finished difference Result 953 states and 1221 transitions. [2021-11-17 13:22:11,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 13:22:11,225 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 89 [2021-11-17 13:22:11,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 13:22:11,232 INFO L225 Difference]: With dead ends: 953 [2021-11-17 13:22:11,232 INFO L226 Difference]: Without dead ends: 951 [2021-11-17 13:22:11,233 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-17 13:22:11,235 INFO L933 BasicCegarLoop]: 1161 mSDtfsCounter, 1708 mSDsluCounter, 1549 mSDsCounter, 0 mSdLazyCounter, 830 mSolverCounterSat, 660 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1857 SdHoareTripleChecker+Valid, 2710 SdHoareTripleChecker+Invalid, 1490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 660 IncrementalHoareTripleChecker+Valid, 830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-17 13:22:11,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1857 Valid, 2710 Invalid, 1490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [660 Valid, 830 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-17 13:22:11,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2021-11-17 13:22:11,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 951. [2021-11-17 13:22:11,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 951 states, 637 states have (on average 1.2291993720565149) internal successors, (783), 680 states have internal predecessors, (783), 219 states have call successors, (219), 67 states have call predecessors, (219), 66 states have return successors, (217), 214 states have call predecessors, (217), 217 states have call successors, (217) [2021-11-17 13:22:11,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 1219 transitions. [2021-11-17 13:22:11,276 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 1219 transitions. Word has length 89 [2021-11-17 13:22:11,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 13:22:11,277 INFO L470 AbstractCegarLoop]: Abstraction has 951 states and 1219 transitions. [2021-11-17 13:22:11,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-17 13:22:11,277 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 1219 transitions. [2021-11-17 13:22:11,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-17 13:22:11,283 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 13:22:11,283 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 13:22:11,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 13:22:11,284 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-17 13:22:11,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 13:22:11,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1710267306, now seen corresponding path program 1 times [2021-11-17 13:22:11,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 13:22:11,285 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195625870] [2021-11-17 13:22:11,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 13:22:11,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 13:22:11,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:11,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 13:22:11,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:11,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 13:22:11,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:11,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 13:22:11,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:11,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 13:22:11,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:11,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 13:22:11,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:11,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 13:22:11,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:11,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 13:22:11,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:11,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:11,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:11,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 13:22:11,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:11,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 13:22:11,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:11,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 13:22:11,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:11,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 13:22:11,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:11,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 13:22:11,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:11,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 13:22:11,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:11,517 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-17 13:22:11,518 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 13:22:11,518 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195625870] [2021-11-17 13:22:11,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195625870] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 13:22:11,518 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 13:22:11,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 13:22:11,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475953684] [2021-11-17 13:22:11,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 13:22:11,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 13:22:11,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 13:22:11,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 13:22:11,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 13:22:11,520 INFO L87 Difference]: Start difference. First operand 951 states and 1219 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-17 13:22:13,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 13:22:13,256 INFO L93 Difference]: Finished difference Result 951 states and 1219 transitions. [2021-11-17 13:22:13,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 13:22:13,257 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 95 [2021-11-17 13:22:13,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 13:22:13,261 INFO L225 Difference]: With dead ends: 951 [2021-11-17 13:22:13,261 INFO L226 Difference]: Without dead ends: 949 [2021-11-17 13:22:13,261 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-17 13:22:13,262 INFO L933 BasicCegarLoop]: 1159 mSDtfsCounter, 1702 mSDsluCounter, 1549 mSDsCounter, 0 mSdLazyCounter, 828 mSolverCounterSat, 660 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1850 SdHoareTripleChecker+Valid, 2708 SdHoareTripleChecker+Invalid, 1488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 660 IncrementalHoareTripleChecker+Valid, 828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-17 13:22:13,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1850 Valid, 2708 Invalid, 1488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [660 Valid, 828 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-17 13:22:13,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2021-11-17 13:22:13,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 949. [2021-11-17 13:22:13,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 949 states, 636 states have (on average 1.2279874213836477) internal successors, (781), 678 states have internal predecessors, (781), 219 states have call successors, (219), 67 states have call predecessors, (219), 66 states have return successors, (217), 214 states have call predecessors, (217), 217 states have call successors, (217) [2021-11-17 13:22:13,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 1217 transitions. [2021-11-17 13:22:13,293 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 1217 transitions. Word has length 95 [2021-11-17 13:22:13,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 13:22:13,294 INFO L470 AbstractCegarLoop]: Abstraction has 949 states and 1217 transitions. [2021-11-17 13:22:13,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-17 13:22:13,295 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 1217 transitions. [2021-11-17 13:22:13,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-17 13:22:13,297 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 13:22:13,298 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 13:22:13,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 13:22:13,298 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-17 13:22:13,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 13:22:13,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1309820457, now seen corresponding path program 1 times [2021-11-17 13:22:13,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 13:22:13,299 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303723816] [2021-11-17 13:22:13,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 13:22:13,299 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 13:22:13,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:13,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 13:22:13,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:13,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 13:22:13,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:13,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 13:22:13,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:13,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 13:22:13,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:13,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 13:22:13,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:13,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 13:22:13,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:13,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 13:22:13,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:13,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:13,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:13,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 13:22:13,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:13,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 13:22:13,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:13,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 13:22:13,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:13,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 13:22:13,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:13,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 13:22:13,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:13,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 13:22:13,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:13,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 13:22:13,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:13,469 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-17 13:22:13,469 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 13:22:13,469 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303723816] [2021-11-17 13:22:13,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303723816] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 13:22:13,470 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 13:22:13,470 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 13:22:13,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049265853] [2021-11-17 13:22:13,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 13:22:13,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 13:22:13,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 13:22:13,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 13:22:13,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 13:22:13,472 INFO L87 Difference]: Start difference. First operand 949 states and 1217 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-17 13:22:15,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 13:22:15,292 INFO L93 Difference]: Finished difference Result 949 states and 1217 transitions. [2021-11-17 13:22:15,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 13:22:15,292 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 101 [2021-11-17 13:22:15,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 13:22:15,296 INFO L225 Difference]: With dead ends: 949 [2021-11-17 13:22:15,296 INFO L226 Difference]: Without dead ends: 947 [2021-11-17 13:22:15,297 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-17 13:22:15,297 INFO L933 BasicCegarLoop]: 1157 mSDtfsCounter, 1696 mSDsluCounter, 1549 mSDsCounter, 0 mSdLazyCounter, 826 mSolverCounterSat, 660 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1843 SdHoareTripleChecker+Valid, 2706 SdHoareTripleChecker+Invalid, 1486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 660 IncrementalHoareTripleChecker+Valid, 826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-17 13:22:15,298 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1843 Valid, 2706 Invalid, 1486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [660 Valid, 826 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-17 13:22:15,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2021-11-17 13:22:15,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 947. [2021-11-17 13:22:15,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 947 states, 635 states have (on average 1.226771653543307) internal successors, (779), 676 states have internal predecessors, (779), 219 states have call successors, (219), 67 states have call predecessors, (219), 66 states have return successors, (217), 214 states have call predecessors, (217), 217 states have call successors, (217) [2021-11-17 13:22:15,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 947 states to 947 states and 1215 transitions. [2021-11-17 13:22:15,337 INFO L78 Accepts]: Start accepts. Automaton has 947 states and 1215 transitions. Word has length 101 [2021-11-17 13:22:15,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 13:22:15,338 INFO L470 AbstractCegarLoop]: Abstraction has 947 states and 1215 transitions. [2021-11-17 13:22:15,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-17 13:22:15,338 INFO L276 IsEmpty]: Start isEmpty. Operand 947 states and 1215 transitions. [2021-11-17 13:22:15,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-17 13:22:15,340 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 13:22:15,340 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 13:22:15,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 13:22:15,341 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-17 13:22:15,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 13:22:15,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1917796044, now seen corresponding path program 1 times [2021-11-17 13:22:15,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 13:22:15,341 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751681767] [2021-11-17 13:22:15,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 13:22:15,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 13:22:15,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:15,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 13:22:15,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:15,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 13:22:15,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:15,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 13:22:15,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:15,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 13:22:15,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:15,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 13:22:15,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:15,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 13:22:15,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:15,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 13:22:15,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:15,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:15,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:15,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 13:22:15,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:15,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 13:22:15,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:15,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 13:22:15,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:15,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 13:22:15,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:15,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 13:22:15,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:15,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 13:22:15,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:15,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 13:22:15,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:15,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 13:22:15,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:15,519 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-17 13:22:15,519 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 13:22:15,519 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751681767] [2021-11-17 13:22:15,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751681767] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 13:22:15,519 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 13:22:15,519 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 13:22:15,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012582324] [2021-11-17 13:22:15,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 13:22:15,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 13:22:15,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 13:22:15,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 13:22:15,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 13:22:15,521 INFO L87 Difference]: Start difference. First operand 947 states and 1215 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-17 13:22:17,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 13:22:17,224 INFO L93 Difference]: Finished difference Result 947 states and 1215 transitions. [2021-11-17 13:22:17,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 13:22:17,224 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 107 [2021-11-17 13:22:17,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 13:22:17,229 INFO L225 Difference]: With dead ends: 947 [2021-11-17 13:22:17,229 INFO L226 Difference]: Without dead ends: 945 [2021-11-17 13:22:17,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-17 13:22:17,230 INFO L933 BasicCegarLoop]: 1155 mSDtfsCounter, 1690 mSDsluCounter, 1549 mSDsCounter, 0 mSdLazyCounter, 824 mSolverCounterSat, 660 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1836 SdHoareTripleChecker+Valid, 2704 SdHoareTripleChecker+Invalid, 1484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 660 IncrementalHoareTripleChecker+Valid, 824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-17 13:22:17,230 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1836 Valid, 2704 Invalid, 1484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [660 Valid, 824 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-17 13:22:17,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2021-11-17 13:22:17,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 945. [2021-11-17 13:22:17,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 945 states, 634 states have (on average 1.225552050473186) internal successors, (777), 674 states have internal predecessors, (777), 219 states have call successors, (219), 67 states have call predecessors, (219), 66 states have return successors, (217), 214 states have call predecessors, (217), 217 states have call successors, (217) [2021-11-17 13:22:17,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 945 states to 945 states and 1213 transitions. [2021-11-17 13:22:17,255 INFO L78 Accepts]: Start accepts. Automaton has 945 states and 1213 transitions. Word has length 107 [2021-11-17 13:22:17,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 13:22:17,256 INFO L470 AbstractCegarLoop]: Abstraction has 945 states and 1213 transitions. [2021-11-17 13:22:17,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-17 13:22:17,256 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1213 transitions. [2021-11-17 13:22:17,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-17 13:22:17,257 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 13:22:17,258 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 13:22:17,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-17 13:22:17,258 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-17 13:22:17,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 13:22:17,258 INFO L85 PathProgramCache]: Analyzing trace with hash -334687362, now seen corresponding path program 1 times [2021-11-17 13:22:17,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 13:22:17,258 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244167296] [2021-11-17 13:22:17,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 13:22:17,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 13:22:17,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:17,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 13:22:17,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:17,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 13:22:17,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:17,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 13:22:17,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:17,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 13:22:17,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:17,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 13:22:17,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:17,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 13:22:17,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:17,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 13:22:17,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:17,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:17,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:17,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 13:22:17,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:17,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 13:22:17,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:17,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 13:22:17,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:17,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 13:22:17,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:17,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 13:22:17,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:17,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 13:22:17,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:17,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 13:22:17,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:17,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 13:22:17,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:17,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 13:22:17,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:17,396 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-17 13:22:17,396 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 13:22:17,396 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244167296] [2021-11-17 13:22:17,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244167296] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 13:22:17,397 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 13:22:17,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 13:22:17,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562015425] [2021-11-17 13:22:17,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 13:22:17,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 13:22:17,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 13:22:17,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 13:22:17,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 13:22:17,398 INFO L87 Difference]: Start difference. First operand 945 states and 1213 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-17 13:22:19,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 13:22:19,095 INFO L93 Difference]: Finished difference Result 945 states and 1213 transitions. [2021-11-17 13:22:19,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 13:22:19,096 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 113 [2021-11-17 13:22:19,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 13:22:19,100 INFO L225 Difference]: With dead ends: 945 [2021-11-17 13:22:19,100 INFO L226 Difference]: Without dead ends: 943 [2021-11-17 13:22:19,100 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-17 13:22:19,101 INFO L933 BasicCegarLoop]: 1153 mSDtfsCounter, 1688 mSDsluCounter, 1549 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 660 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1833 SdHoareTripleChecker+Valid, 2702 SdHoareTripleChecker+Invalid, 1478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 660 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-17 13:22:19,101 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1833 Valid, 2702 Invalid, 1478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [660 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-17 13:22:19,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 943 states. [2021-11-17 13:22:19,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 943 to 943. [2021-11-17 13:22:19,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 943 states, 633 states have (on average 1.2243285939968405) internal successors, (775), 672 states have internal predecessors, (775), 219 states have call successors, (219), 67 states have call predecessors, (219), 66 states have return successors, (217), 214 states have call predecessors, (217), 217 states have call successors, (217) [2021-11-17 13:22:19,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 943 states to 943 states and 1211 transitions. [2021-11-17 13:22:19,133 INFO L78 Accepts]: Start accepts. Automaton has 943 states and 1211 transitions. Word has length 113 [2021-11-17 13:22:19,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 13:22:19,133 INFO L470 AbstractCegarLoop]: Abstraction has 943 states and 1211 transitions. [2021-11-17 13:22:19,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-17 13:22:19,133 INFO L276 IsEmpty]: Start isEmpty. Operand 943 states and 1211 transitions. [2021-11-17 13:22:19,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-17 13:22:19,135 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 13:22:19,135 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 13:22:19,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-17 13:22:19,135 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-17 13:22:19,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 13:22:19,136 INFO L85 PathProgramCache]: Analyzing trace with hash 488135713, now seen corresponding path program 1 times [2021-11-17 13:22:19,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 13:22:19,136 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844887868] [2021-11-17 13:22:19,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 13:22:19,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 13:22:19,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:19,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 13:22:19,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:19,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 13:22:19,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:19,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 13:22:19,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:19,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 13:22:19,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:19,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 13:22:19,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:19,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 13:22:19,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:19,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 13:22:19,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:19,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:19,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:19,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 13:22:19,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:19,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 13:22:19,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:19,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 13:22:19,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:19,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 13:22:19,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:19,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 13:22:19,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:19,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 13:22:19,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:19,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 13:22:19,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:19,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 13:22:19,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:19,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 13:22:19,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:19,273 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-17 13:22:19,273 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 13:22:19,273 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844887868] [2021-11-17 13:22:19,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844887868] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 13:22:19,273 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 13:22:19,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 13:22:19,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410052403] [2021-11-17 13:22:19,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 13:22:19,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 13:22:19,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 13:22:19,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 13:22:19,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 13:22:19,275 INFO L87 Difference]: Start difference. First operand 943 states and 1211 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-17 13:22:21,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 13:22:21,070 INFO L93 Difference]: Finished difference Result 943 states and 1211 transitions. [2021-11-17 13:22:21,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 13:22:21,071 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 115 [2021-11-17 13:22:21,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 13:22:21,074 INFO L225 Difference]: With dead ends: 943 [2021-11-17 13:22:21,074 INFO L226 Difference]: Without dead ends: 941 [2021-11-17 13:22:21,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-17 13:22:21,075 INFO L933 BasicCegarLoop]: 1151 mSDtfsCounter, 1676 mSDsluCounter, 1549 mSDsCounter, 0 mSdLazyCounter, 820 mSolverCounterSat, 660 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1821 SdHoareTripleChecker+Valid, 2700 SdHoareTripleChecker+Invalid, 1480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 660 IncrementalHoareTripleChecker+Valid, 820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-17 13:22:21,075 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1821 Valid, 2700 Invalid, 1480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [660 Valid, 820 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-17 13:22:21,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2021-11-17 13:22:21,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 941. [2021-11-17 13:22:21,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 941 states, 632 states have (on average 1.2231012658227849) internal successors, (773), 670 states have internal predecessors, (773), 219 states have call successors, (219), 67 states have call predecessors, (219), 66 states have return successors, (217), 214 states have call predecessors, (217), 217 states have call successors, (217) [2021-11-17 13:22:21,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 941 states to 941 states and 1209 transitions. [2021-11-17 13:22:21,103 INFO L78 Accepts]: Start accepts. Automaton has 941 states and 1209 transitions. Word has length 115 [2021-11-17 13:22:21,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 13:22:21,103 INFO L470 AbstractCegarLoop]: Abstraction has 941 states and 1209 transitions. [2021-11-17 13:22:21,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-17 13:22:21,104 INFO L276 IsEmpty]: Start isEmpty. Operand 941 states and 1209 transitions. [2021-11-17 13:22:21,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-17 13:22:21,105 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 13:22:21,105 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 13:22:21,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-17 13:22:21,105 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-17 13:22:21,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 13:22:21,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1281926017, now seen corresponding path program 1 times [2021-11-17 13:22:21,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 13:22:21,106 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131398501] [2021-11-17 13:22:21,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 13:22:21,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 13:22:21,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:21,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 13:22:21,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:21,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 13:22:21,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:21,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 13:22:21,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:21,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 13:22:21,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:21,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 13:22:21,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:21,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 13:22:21,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:21,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 13:22:21,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:21,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:21,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:21,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 13:22:21,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:21,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 13:22:21,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:21,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 13:22:21,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:21,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 13:22:21,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:21,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 13:22:21,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:21,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 13:22:21,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:21,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 13:22:21,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:21,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 13:22:21,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:21,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 13:22:21,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:21,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-17 13:22:21,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:21,236 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-17 13:22:21,237 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 13:22:21,237 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131398501] [2021-11-17 13:22:21,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131398501] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 13:22:21,237 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 13:22:21,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 13:22:21,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125856034] [2021-11-17 13:22:21,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 13:22:21,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 13:22:21,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 13:22:21,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 13:22:21,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 13:22:21,238 INFO L87 Difference]: Start difference. First operand 941 states and 1209 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 13:22:22,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 13:22:22,642 INFO L93 Difference]: Finished difference Result 941 states and 1209 transitions. [2021-11-17 13:22:22,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 13:22:22,643 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 121 [2021-11-17 13:22:22,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 13:22:22,650 INFO L225 Difference]: With dead ends: 941 [2021-11-17 13:22:22,651 INFO L226 Difference]: Without dead ends: 939 [2021-11-17 13:22:22,651 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-17 13:22:22,651 INFO L933 BasicCegarLoop]: 1149 mSDtfsCounter, 1672 mSDsluCounter, 1549 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 660 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1816 SdHoareTripleChecker+Valid, 2698 SdHoareTripleChecker+Invalid, 1478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 660 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-17 13:22:22,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1816 Valid, 2698 Invalid, 1478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [660 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-17 13:22:22,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2021-11-17 13:22:22,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 939. [2021-11-17 13:22:22,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 939 states, 631 states have (on average 1.2218700475435815) internal successors, (771), 668 states have internal predecessors, (771), 219 states have call successors, (219), 67 states have call predecessors, (219), 66 states have return successors, (217), 214 states have call predecessors, (217), 217 states have call successors, (217) [2021-11-17 13:22:22,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1207 transitions. [2021-11-17 13:22:22,702 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1207 transitions. Word has length 121 [2021-11-17 13:22:22,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 13:22:22,702 INFO L470 AbstractCegarLoop]: Abstraction has 939 states and 1207 transitions. [2021-11-17 13:22:22,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 13:22:22,703 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1207 transitions. [2021-11-17 13:22:22,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-17 13:22:22,704 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 13:22:22,704 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 13:22:22,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-17 13:22:22,704 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-17 13:22:22,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 13:22:22,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1200561438, now seen corresponding path program 1 times [2021-11-17 13:22:22,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 13:22:22,705 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125597628] [2021-11-17 13:22:22,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 13:22:22,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 13:22:22,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:22,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 13:22:22,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:22,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 13:22:22,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:22,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 13:22:22,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:22,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 13:22:22,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:22,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 13:22:22,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:22,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 13:22:22,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:22,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 13:22:22,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:22,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:22,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:22,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 13:22:22,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:22,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 13:22:22,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:22,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 13:22:22,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:22,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 13:22:22,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:22,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 13:22:22,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:22,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 13:22:22,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:22,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 13:22:22,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:22,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 13:22:22,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:22,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 13:22:22,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:22,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-17 13:22:22,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:22,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 13:22:22,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:22,838 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-17 13:22:22,838 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 13:22:22,838 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125597628] [2021-11-17 13:22:22,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125597628] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 13:22:22,839 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 13:22:22,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 13:22:22,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783657547] [2021-11-17 13:22:22,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 13:22:22,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 13:22:22,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 13:22:22,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 13:22:22,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 13:22:22,840 INFO L87 Difference]: Start difference. First operand 939 states and 1207 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, (20), 4 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-17 13:22:24,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 13:22:24,330 INFO L93 Difference]: Finished difference Result 939 states and 1207 transitions. [2021-11-17 13:22:24,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 13:22:24,331 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, (20), 4 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 127 [2021-11-17 13:22:24,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 13:22:24,336 INFO L225 Difference]: With dead ends: 939 [2021-11-17 13:22:24,336 INFO L226 Difference]: Without dead ends: 937 [2021-11-17 13:22:24,336 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-17 13:22:24,337 INFO L933 BasicCegarLoop]: 1147 mSDtfsCounter, 1666 mSDsluCounter, 1549 mSDsCounter, 0 mSdLazyCounter, 816 mSolverCounterSat, 660 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1809 SdHoareTripleChecker+Valid, 2696 SdHoareTripleChecker+Invalid, 1476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 660 IncrementalHoareTripleChecker+Valid, 816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-17 13:22:24,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1809 Valid, 2696 Invalid, 1476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [660 Valid, 816 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-17 13:22:24,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2021-11-17 13:22:24,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 937. [2021-11-17 13:22:24,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 937 states, 630 states have (on average 1.2206349206349207) internal successors, (769), 666 states have internal predecessors, (769), 219 states have call successors, (219), 67 states have call predecessors, (219), 66 states have return successors, (217), 214 states have call predecessors, (217), 217 states have call successors, (217) [2021-11-17 13:22:24,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 937 states to 937 states and 1205 transitions. [2021-11-17 13:22:24,385 INFO L78 Accepts]: Start accepts. Automaton has 937 states and 1205 transitions. Word has length 127 [2021-11-17 13:22:24,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 13:22:24,385 INFO L470 AbstractCegarLoop]: Abstraction has 937 states and 1205 transitions. [2021-11-17 13:22:24,385 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, (20), 4 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-17 13:22:24,385 INFO L276 IsEmpty]: Start isEmpty. Operand 937 states and 1205 transitions. [2021-11-17 13:22:24,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-17 13:22:24,387 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 13:22:24,387 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 13:22:24,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-17 13:22:24,387 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-17 13:22:24,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 13:22:24,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1108051758, now seen corresponding path program 1 times [2021-11-17 13:22:24,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 13:22:24,388 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520753773] [2021-11-17 13:22:24,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 13:22:24,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 13:22:24,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:24,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 13:22:24,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:24,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 13:22:24,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:24,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 13:22:24,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:24,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 13:22:24,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:24,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-11-17 13:22:24,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:24,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:24,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:24,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:22:24,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:24,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:22:24,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:24,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 13:22:24,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:24,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:24,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:24,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:22:24,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:24,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:22:24,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:24,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-17 13:22:24,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:24,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:24,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:24,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:22:24,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:24,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:22:24,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:24,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 13:22:24,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:24,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:24,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:24,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:22:24,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:24,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:22:24,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:24,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 13:22:24,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:24,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:24,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:24,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:22:24,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:24,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:22:24,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:24,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 13:22:24,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:24,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 13:22:24,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:24,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 13:22:24,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:24,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 13:22:24,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:24,679 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2021-11-17 13:22:24,679 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 13:22:24,679 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520753773] [2021-11-17 13:22:24,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520753773] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 13:22:24,680 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 13:22:24,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-17 13:22:24,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636878729] [2021-11-17 13:22:24,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 13:22:24,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-17 13:22:24,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 13:22:24,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-17 13:22:24,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-17 13:22:24,697 INFO L87 Difference]: Start difference. First operand 937 states and 1205 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-17 13:22:27,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 13:22:27,764 INFO L93 Difference]: Finished difference Result 1858 states and 2401 transitions. [2021-11-17 13:22:27,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-17 13:22:27,765 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 171 [2021-11-17 13:22:27,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 13:22:27,770 INFO L225 Difference]: With dead ends: 1858 [2021-11-17 13:22:27,770 INFO L226 Difference]: Without dead ends: 961 [2021-11-17 13:22:27,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2021-11-17 13:22:27,773 INFO L933 BasicCegarLoop]: 1143 mSDtfsCounter, 1961 mSDsluCounter, 3120 mSDsCounter, 0 mSdLazyCounter, 2392 mSolverCounterSat, 938 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2117 SdHoareTripleChecker+Valid, 4263 SdHoareTripleChecker+Invalid, 3330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 938 IncrementalHoareTripleChecker+Valid, 2392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-11-17 13:22:27,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2117 Valid, 4263 Invalid, 3330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [938 Valid, 2392 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-11-17 13:22:27,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2021-11-17 13:22:27,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 937. [2021-11-17 13:22:27,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 937 states, 630 states have (on average 1.2190476190476192) internal successors, (768), 666 states have internal predecessors, (768), 219 states have call successors, (219), 67 states have call predecessors, (219), 66 states have return successors, (217), 214 states have call predecessors, (217), 217 states have call successors, (217) [2021-11-17 13:22:27,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 937 states to 937 states and 1204 transitions. [2021-11-17 13:22:27,812 INFO L78 Accepts]: Start accepts. Automaton has 937 states and 1204 transitions. Word has length 171 [2021-11-17 13:22:27,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 13:22:27,813 INFO L470 AbstractCegarLoop]: Abstraction has 937 states and 1204 transitions. [2021-11-17 13:22:27,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-17 13:22:27,813 INFO L276 IsEmpty]: Start isEmpty. Operand 937 states and 1204 transitions. [2021-11-17 13:22:27,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-17 13:22:27,815 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 13:22:27,815 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 13:22:27,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-17 13:22:27,815 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-17 13:22:27,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 13:22:27,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1107992176, now seen corresponding path program 1 times [2021-11-17 13:22:27,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 13:22:27,816 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376853592] [2021-11-17 13:22:27,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 13:22:27,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 13:22:27,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:27,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 13:22:27,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:27,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 13:22:27,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:27,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 13:22:27,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:27,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 13:22:27,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:27,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-11-17 13:22:27,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:27,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:27,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:27,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:22:27,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:27,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:22:27,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:27,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 13:22:27,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:27,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:27,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:27,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:22:27,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:27,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:22:27,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:27,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-17 13:22:27,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:27,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:27,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:27,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:22:27,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:27,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:22:27,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:27,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 13:22:27,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:27,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:27,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:27,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:22:27,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:27,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:22:27,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:27,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 13:22:27,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:27,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:27,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:27,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:22:27,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:27,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:22:27,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:28,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 13:22:28,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:28,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 13:22:28,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:28,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 13:22:28,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:28,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 13:22:28,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:28,022 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2021-11-17 13:22:28,022 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 13:22:28,022 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376853592] [2021-11-17 13:22:28,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376853592] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 13:22:28,023 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 13:22:28,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 13:22:28,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060329124] [2021-11-17 13:22:28,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 13:22:28,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 13:22:28,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 13:22:28,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 13:22:28,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-17 13:22:28,024 INFO L87 Difference]: Start difference. First operand 937 states and 1204 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2021-11-17 13:22:30,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 13:22:30,284 INFO L93 Difference]: Finished difference Result 961 states and 1238 transitions. [2021-11-17 13:22:30,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 13:22:30,285 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 171 [2021-11-17 13:22:30,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 13:22:30,288 INFO L225 Difference]: With dead ends: 961 [2021-11-17 13:22:30,288 INFO L226 Difference]: Without dead ends: 959 [2021-11-17 13:22:30,289 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-11-17 13:22:30,289 INFO L933 BasicCegarLoop]: 1140 mSDtfsCounter, 1049 mSDsluCounter, 2731 mSDsCounter, 0 mSdLazyCounter, 1557 mSolverCounterSat, 816 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1049 SdHoareTripleChecker+Valid, 3871 SdHoareTripleChecker+Invalid, 2373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 816 IncrementalHoareTripleChecker+Valid, 1557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-17 13:22:30,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1049 Valid, 3871 Invalid, 2373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [816 Valid, 1557 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-17 13:22:30,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2021-11-17 13:22:30,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 935. [2021-11-17 13:22:30,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 935 states, 629 states have (on average 1.217806041335453) internal successors, (766), 664 states have internal predecessors, (766), 219 states have call successors, (219), 67 states have call predecessors, (219), 66 states have return successors, (217), 214 states have call predecessors, (217), 217 states have call successors, (217) [2021-11-17 13:22:30,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 935 states to 935 states and 1202 transitions. [2021-11-17 13:22:30,336 INFO L78 Accepts]: Start accepts. Automaton has 935 states and 1202 transitions. Word has length 171 [2021-11-17 13:22:30,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 13:22:30,336 INFO L470 AbstractCegarLoop]: Abstraction has 935 states and 1202 transitions. [2021-11-17 13:22:30,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2021-11-17 13:22:30,337 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 1202 transitions. [2021-11-17 13:22:30,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-17 13:22:30,338 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 13:22:30,338 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 13:22:30,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-17 13:22:30,338 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-17 13:22:30,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 13:22:30,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1944874354, now seen corresponding path program 1 times [2021-11-17 13:22:30,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 13:22:30,339 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824760901] [2021-11-17 13:22:30,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 13:22:30,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 13:22:30,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:30,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 13:22:30,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:30,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 13:22:30,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:30,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 13:22:30,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:30,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 13:22:30,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:30,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 13:22:30,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:30,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 13:22:30,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:30,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 13:22:30,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:30,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:30,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:30,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 13:22:30,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:30,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 13:22:30,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:30,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 13:22:30,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:30,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 13:22:30,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:30,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 13:22:30,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:30,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 13:22:30,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:30,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 13:22:30,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:30,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 13:22:30,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:30,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 13:22:30,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:30,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-17 13:22:30,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:30,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 13:22:30,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:30,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-17 13:22:30,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:30,477 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-17 13:22:30,477 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 13:22:30,477 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824760901] [2021-11-17 13:22:30,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824760901] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 13:22:30,477 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 13:22:30,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 13:22:30,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696052053] [2021-11-17 13:22:30,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 13:22:30,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 13:22:30,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 13:22:30,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 13:22:30,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 13:22:30,479 INFO L87 Difference]: Start difference. First operand 935 states and 1202 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-17 13:22:31,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 13:22:31,933 INFO L93 Difference]: Finished difference Result 935 states and 1202 transitions. [2021-11-17 13:22:31,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 13:22:31,934 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 133 [2021-11-17 13:22:31,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 13:22:31,937 INFO L225 Difference]: With dead ends: 935 [2021-11-17 13:22:31,938 INFO L226 Difference]: Without dead ends: 933 [2021-11-17 13:22:31,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-17 13:22:31,938 INFO L933 BasicCegarLoop]: 1142 mSDtfsCounter, 1651 mSDsluCounter, 1549 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 660 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1793 SdHoareTripleChecker+Valid, 2691 SdHoareTripleChecker+Invalid, 1471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 660 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-17 13:22:31,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1793 Valid, 2691 Invalid, 1471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [660 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-17 13:22:31,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 933 states. [2021-11-17 13:22:31,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 933 to 933. [2021-11-17 13:22:31,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 933 states, 628 states have (on average 1.21656050955414) internal successors, (764), 662 states have internal predecessors, (764), 219 states have call successors, (219), 67 states have call predecessors, (219), 66 states have return successors, (217), 214 states have call predecessors, (217), 217 states have call successors, (217) [2021-11-17 13:22:31,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1200 transitions. [2021-11-17 13:22:31,974 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1200 transitions. Word has length 133 [2021-11-17 13:22:31,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 13:22:31,975 INFO L470 AbstractCegarLoop]: Abstraction has 933 states and 1200 transitions. [2021-11-17 13:22:31,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-17 13:22:31,975 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1200 transitions. [2021-11-17 13:22:31,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-11-17 13:22:31,977 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 13:22:31,978 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 13:22:31,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-17 13:22:31,978 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-17 13:22:31,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 13:22:31,978 INFO L85 PathProgramCache]: Analyzing trace with hash 157610685, now seen corresponding path program 1 times [2021-11-17 13:22:31,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 13:22:31,979 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520856167] [2021-11-17 13:22:31,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 13:22:31,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 13:22:32,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:32,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 13:22:32,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:32,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 13:22:32,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:32,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 13:22:32,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:32,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 13:22:32,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:32,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-11-17 13:22:32,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:32,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:32,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:32,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:22:32,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:32,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:22:32,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:32,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 13:22:32,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:32,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:32,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:32,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:22:32,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:32,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:22:32,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:32,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-17 13:22:32,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:32,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:32,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:32,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:22:32,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:32,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:22:32,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:32,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 13:22:32,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:32,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:32,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:32,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:22:32,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:32,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:22:32,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:32,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 13:22:32,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:32,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:32,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:32,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:22:32,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:32,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:22:32,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:32,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 13:22:32,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:32,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 13:22:32,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:32,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 13:22:32,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:32,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 13:22:32,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:32,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:32,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:32,181 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2021-11-17 13:22:32,182 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 13:22:32,182 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520856167] [2021-11-17 13:22:32,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520856167] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 13:22:32,182 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 13:22:32,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 13:22:32,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513767242] [2021-11-17 13:22:32,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 13:22:32,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 13:22:32,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 13:22:32,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 13:22:32,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 13:22:32,184 INFO L87 Difference]: Start difference. First operand 933 states and 1200 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-17 13:22:34,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 13:22:34,643 INFO L93 Difference]: Finished difference Result 1846 states and 2387 transitions. [2021-11-17 13:22:34,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 13:22:34,644 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 178 [2021-11-17 13:22:34,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 13:22:34,648 INFO L225 Difference]: With dead ends: 1846 [2021-11-17 13:22:34,648 INFO L226 Difference]: Without dead ends: 953 [2021-11-17 13:22:34,650 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-17 13:22:34,651 INFO L933 BasicCegarLoop]: 1131 mSDtfsCounter, 1928 mSDsluCounter, 1182 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 939 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2087 SdHoareTripleChecker+Valid, 2313 SdHoareTripleChecker+Invalid, 1634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 939 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-17 13:22:34,657 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2087 Valid, 2313 Invalid, 1634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [939 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-17 13:22:34,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 953 states. [2021-11-17 13:22:34,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 953 to 929. [2021-11-17 13:22:34,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 929 states, 625 states have (on average 1.2144) internal successors, (759), 658 states have internal predecessors, (759), 219 states have call successors, (219), 67 states have call predecessors, (219), 66 states have return successors, (217), 214 states have call predecessors, (217), 217 states have call successors, (217) [2021-11-17 13:22:34,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1195 transitions. [2021-11-17 13:22:34,692 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1195 transitions. Word has length 178 [2021-11-17 13:22:34,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 13:22:34,693 INFO L470 AbstractCegarLoop]: Abstraction has 929 states and 1195 transitions. [2021-11-17 13:22:34,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-17 13:22:34,694 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1195 transitions. [2021-11-17 13:22:34,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-17 13:22:34,711 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 13:22:34,711 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 13:22:34,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-17 13:22:34,712 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-17 13:22:34,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 13:22:34,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1224799676, now seen corresponding path program 1 times [2021-11-17 13:22:34,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 13:22:34,713 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960078128] [2021-11-17 13:22:34,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 13:22:34,713 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 13:22:34,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:34,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 13:22:34,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:34,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 13:22:34,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:34,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 13:22:34,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:34,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 13:22:34,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:34,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 13:22:34,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:34,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 13:22:34,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:34,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 13:22:34,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:34,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:34,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:34,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 13:22:34,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:34,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 13:22:34,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:34,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 13:22:34,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:34,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 13:22:34,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:34,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 13:22:34,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:34,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 13:22:34,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:34,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 13:22:34,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:34,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 13:22:34,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:34,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 13:22:34,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:34,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-17 13:22:34,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:34,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 13:22:34,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:34,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-17 13:22:34,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:34,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 13:22:34,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:34,873 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-17 13:22:34,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 13:22:34,874 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960078128] [2021-11-17 13:22:34,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960078128] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 13:22:34,875 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 13:22:34,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 13:22:34,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369600827] [2021-11-17 13:22:34,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 13:22:34,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 13:22:34,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 13:22:34,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 13:22:34,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 13:22:34,877 INFO L87 Difference]: Start difference. First operand 929 states and 1195 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-17 13:22:36,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 13:22:36,375 INFO L93 Difference]: Finished difference Result 929 states and 1195 transitions. [2021-11-17 13:22:36,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 13:22:36,376 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 139 [2021-11-17 13:22:36,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 13:22:36,380 INFO L225 Difference]: With dead ends: 929 [2021-11-17 13:22:36,380 INFO L226 Difference]: Without dead ends: 927 [2021-11-17 13:22:36,380 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-17 13:22:36,381 INFO L933 BasicCegarLoop]: 1135 mSDtfsCounter, 1630 mSDsluCounter, 1549 mSDsCounter, 0 mSdLazyCounter, 804 mSolverCounterSat, 660 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1771 SdHoareTripleChecker+Valid, 2684 SdHoareTripleChecker+Invalid, 1464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 660 IncrementalHoareTripleChecker+Valid, 804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-17 13:22:36,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1771 Valid, 2684 Invalid, 1464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [660 Valid, 804 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-17 13:22:36,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 927 states. [2021-11-17 13:22:36,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 927 to 927. [2021-11-17 13:22:36,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 927 states, 624 states have (on average 1.2131410256410255) internal successors, (757), 656 states have internal predecessors, (757), 219 states have call successors, (219), 67 states have call predecessors, (219), 66 states have return successors, (217), 214 states have call predecessors, (217), 217 states have call successors, (217) [2021-11-17 13:22:36,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 927 states to 927 states and 1193 transitions. [2021-11-17 13:22:36,430 INFO L78 Accepts]: Start accepts. Automaton has 927 states and 1193 transitions. Word has length 139 [2021-11-17 13:22:36,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 13:22:36,431 INFO L470 AbstractCegarLoop]: Abstraction has 927 states and 1193 transitions. [2021-11-17 13:22:36,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-17 13:22:36,432 INFO L276 IsEmpty]: Start isEmpty. Operand 927 states and 1193 transitions. [2021-11-17 13:22:36,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-11-17 13:22:36,433 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 13:22:36,433 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 13:22:36,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-17 13:22:36,433 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-17 13:22:36,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 13:22:36,434 INFO L85 PathProgramCache]: Analyzing trace with hash 249948283, now seen corresponding path program 1 times [2021-11-17 13:22:36,434 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 13:22:36,434 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624939140] [2021-11-17 13:22:36,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 13:22:36,434 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 13:22:36,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:36,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 13:22:36,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:36,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 13:22:36,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:36,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 13:22:36,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:36,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 13:22:36,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:36,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 13:22:36,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:36,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 13:22:36,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:36,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 13:22:36,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:36,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:36,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:36,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 13:22:36,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:36,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 13:22:36,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:36,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 13:22:36,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:36,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 13:22:36,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:36,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 13:22:36,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:36,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 13:22:36,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:36,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 13:22:36,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:36,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 13:22:36,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:36,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 13:22:36,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:36,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-17 13:22:36,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:36,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 13:22:36,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:36,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-17 13:22:36,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:36,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 13:22:36,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:36,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 13:22:36,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:36,573 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-17 13:22:36,574 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 13:22:36,574 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624939140] [2021-11-17 13:22:36,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624939140] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 13:22:36,574 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 13:22:36,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 13:22:36,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749152635] [2021-11-17 13:22:36,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 13:22:36,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 13:22:36,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 13:22:36,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 13:22:36,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 13:22:36,575 INFO L87 Difference]: Start difference. First operand 927 states and 1193 transitions. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-17 13:22:38,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 13:22:38,079 INFO L93 Difference]: Finished difference Result 927 states and 1193 transitions. [2021-11-17 13:22:38,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 13:22:38,080 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 145 [2021-11-17 13:22:38,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 13:22:38,083 INFO L225 Difference]: With dead ends: 927 [2021-11-17 13:22:38,083 INFO L226 Difference]: Without dead ends: 925 [2021-11-17 13:22:38,084 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-17 13:22:38,084 INFO L933 BasicCegarLoop]: 1133 mSDtfsCounter, 1624 mSDsluCounter, 1549 mSDsCounter, 0 mSdLazyCounter, 802 mSolverCounterSat, 660 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1764 SdHoareTripleChecker+Valid, 2682 SdHoareTripleChecker+Invalid, 1462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 660 IncrementalHoareTripleChecker+Valid, 802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-17 13:22:38,084 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1764 Valid, 2682 Invalid, 1462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [660 Valid, 802 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-17 13:22:38,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2021-11-17 13:22:38,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 925. [2021-11-17 13:22:38,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 925 states, 623 states have (on average 1.2118780096308186) internal successors, (755), 654 states have internal predecessors, (755), 219 states have call successors, (219), 67 states have call predecessors, (219), 66 states have return successors, (217), 214 states have call predecessors, (217), 217 states have call successors, (217) [2021-11-17 13:22:38,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1191 transitions. [2021-11-17 13:22:38,116 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1191 transitions. Word has length 145 [2021-11-17 13:22:38,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 13:22:38,117 INFO L470 AbstractCegarLoop]: Abstraction has 925 states and 1191 transitions. [2021-11-17 13:22:38,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-17 13:22:38,117 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1191 transitions. [2021-11-17 13:22:38,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-11-17 13:22:38,118 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 13:22:38,118 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 13:22:38,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-17 13:22:38,119 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-17 13:22:38,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 13:22:38,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1075121200, now seen corresponding path program 1 times [2021-11-17 13:22:38,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 13:22:38,119 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814374656] [2021-11-17 13:22:38,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 13:22:38,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 13:22:38,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:38,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 13:22:38,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:38,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 13:22:38,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:38,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 13:22:38,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:38,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 13:22:38,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:38,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 13:22:38,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:38,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 13:22:38,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:38,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 13:22:38,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:38,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:38,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:38,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 13:22:38,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:38,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 13:22:38,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:38,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 13:22:38,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:38,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 13:22:38,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:38,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 13:22:38,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:38,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 13:22:38,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:38,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 13:22:38,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:38,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 13:22:38,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:38,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 13:22:38,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:38,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-17 13:22:38,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:38,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 13:22:38,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:38,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-17 13:22:38,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:38,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 13:22:38,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:38,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 13:22:38,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:38,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 13:22:38,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:38,250 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-17 13:22:38,250 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 13:22:38,250 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814374656] [2021-11-17 13:22:38,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814374656] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 13:22:38,250 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 13:22:38,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 13:22:38,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234048468] [2021-11-17 13:22:38,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 13:22:38,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 13:22:38,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 13:22:38,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 13:22:38,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 13:22:38,251 INFO L87 Difference]: Start difference. First operand 925 states and 1191 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-17 13:22:39,670 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 13:22:40,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 13:22:40,773 INFO L93 Difference]: Finished difference Result 925 states and 1191 transitions. [2021-11-17 13:22:40,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 13:22:40,773 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 151 [2021-11-17 13:22:40,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 13:22:40,776 INFO L225 Difference]: With dead ends: 925 [2021-11-17 13:22:40,776 INFO L226 Difference]: Without dead ends: 923 [2021-11-17 13:22:40,777 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-17 13:22:40,777 INFO L933 BasicCegarLoop]: 1131 mSDtfsCounter, 1618 mSDsluCounter, 1549 mSDsCounter, 0 mSdLazyCounter, 800 mSolverCounterSat, 660 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1757 SdHoareTripleChecker+Valid, 2680 SdHoareTripleChecker+Invalid, 1460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 660 IncrementalHoareTripleChecker+Valid, 800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-17 13:22:40,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1757 Valid, 2680 Invalid, 1460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [660 Valid, 800 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-17 13:22:40,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2021-11-17 13:22:40,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 923. [2021-11-17 13:22:40,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 923 states, 622 states have (on average 1.2106109324758842) internal successors, (753), 652 states have internal predecessors, (753), 219 states have call successors, (219), 67 states have call predecessors, (219), 66 states have return successors, (217), 214 states have call predecessors, (217), 217 states have call successors, (217) [2021-11-17 13:22:40,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1189 transitions. [2021-11-17 13:22:40,822 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1189 transitions. Word has length 151 [2021-11-17 13:22:40,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 13:22:40,823 INFO L470 AbstractCegarLoop]: Abstraction has 923 states and 1189 transitions. [2021-11-17 13:22:40,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-17 13:22:40,823 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1189 transitions. [2021-11-17 13:22:40,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-11-17 13:22:40,825 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 13:22:40,825 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 13:22:40,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-17 13:22:40,825 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-17 13:22:40,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 13:22:40,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1533945952, now seen corresponding path program 1 times [2021-11-17 13:22:40,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 13:22:40,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748217531] [2021-11-17 13:22:40,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 13:22:40,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 13:22:40,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:40,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 13:22:40,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:40,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 13:22:40,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:40,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 13:22:40,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:40,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 13:22:40,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:40,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 13:22:40,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:40,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 13:22:40,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:40,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 13:22:40,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:40,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:40,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:40,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 13:22:40,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:40,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 13:22:40,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:40,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 13:22:40,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:40,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-17 13:22:41,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:41,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:41,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:41,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:22:41,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:41,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:22:41,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:41,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 13:22:41,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:41,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:41,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:41,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:22:41,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:41,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:22:41,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:41,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 13:22:41,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:41,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:41,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:41,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:22:41,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:41,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:22:41,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:41,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 13:22:41,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:41,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 13:22:41,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:41,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 13:22:41,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:41,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:41,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:41,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 13:22:41,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:41,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 13:22:41,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:41,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 13:22:41,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:41,108 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2021-11-17 13:22:41,108 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 13:22:41,108 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748217531] [2021-11-17 13:22:41,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748217531] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 13:22:41,108 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 13:22:41,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-17 13:22:41,108 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024129721] [2021-11-17 13:22:41,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 13:22:41,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-17 13:22:41,109 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 13:22:41,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-17 13:22:41,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-17 13:22:41,110 INFO L87 Difference]: Start difference. First operand 923 states and 1189 transitions. Second operand has 9 states, 9 states have (on average 8.0) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (26), 5 states have call predecessors, (26), 2 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-17 13:22:44,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 13:22:44,505 INFO L93 Difference]: Finished difference Result 1776 states and 2294 transitions. [2021-11-17 13:22:44,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-17 13:22:44,506 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (26), 5 states have call predecessors, (26), 2 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) Word has length 187 [2021-11-17 13:22:44,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 13:22:44,510 INFO L225 Difference]: With dead ends: 1776 [2021-11-17 13:22:44,510 INFO L226 Difference]: Without dead ends: 1147 [2021-11-17 13:22:44,511 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2021-11-17 13:22:44,511 INFO L933 BasicCegarLoop]: 1227 mSDtfsCounter, 1349 mSDsluCounter, 4550 mSDsCounter, 0 mSdLazyCounter, 2598 mSolverCounterSat, 1052 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1349 SdHoareTripleChecker+Valid, 5777 SdHoareTripleChecker+Invalid, 3650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1052 IncrementalHoareTripleChecker+Valid, 2598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-11-17 13:22:44,512 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1349 Valid, 5777 Invalid, 3650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1052 Valid, 2598 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2021-11-17 13:22:44,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1147 states. [2021-11-17 13:22:44,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1147 to 928. [2021-11-17 13:22:44,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 928 states, 626 states have (on average 1.20926517571885) internal successors, (757), 656 states have internal predecessors, (757), 219 states have call successors, (219), 67 states have call predecessors, (219), 67 states have return successors, (221), 215 states have call predecessors, (221), 217 states have call successors, (221) [2021-11-17 13:22:44,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1197 transitions. [2021-11-17 13:22:44,556 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1197 transitions. Word has length 187 [2021-11-17 13:22:44,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 13:22:44,556 INFO L470 AbstractCegarLoop]: Abstraction has 928 states and 1197 transitions. [2021-11-17 13:22:44,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (26), 5 states have call predecessors, (26), 2 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-17 13:22:44,557 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1197 transitions. [2021-11-17 13:22:44,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-11-17 13:22:44,558 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 13:22:44,558 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 13:22:44,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-17 13:22:44,559 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-17 13:22:44,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 13:22:44,559 INFO L85 PathProgramCache]: Analyzing trace with hash -576056608, now seen corresponding path program 1 times [2021-11-17 13:22:44,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 13:22:44,559 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104704317] [2021-11-17 13:22:44,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 13:22:44,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 13:22:44,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:44,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 13:22:44,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:44,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 13:22:44,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:44,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 13:22:44,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:44,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 13:22:44,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:44,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 13:22:44,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:44,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 13:22:44,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:44,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 13:22:44,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:44,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:44,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:44,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 13:22:44,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:44,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 13:22:44,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:44,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 13:22:44,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:44,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 13:22:44,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:44,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 13:22:44,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:44,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 13:22:44,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:44,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 13:22:44,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:44,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 13:22:44,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:44,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 13:22:44,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:44,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-17 13:22:44,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:44,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 13:22:44,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:44,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-17 13:22:44,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:44,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 13:22:44,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:44,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 13:22:44,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:44,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 13:22:44,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:44,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 13:22:44,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:44,701 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-17 13:22:44,701 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 13:22:44,702 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104704317] [2021-11-17 13:22:44,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104704317] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 13:22:44,702 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 13:22:44,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 13:22:44,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506494020] [2021-11-17 13:22:44,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 13:22:44,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 13:22:44,703 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 13:22:44,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 13:22:44,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 13:22:44,703 INFO L87 Difference]: Start difference. First operand 928 states and 1197 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-17 13:22:46,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 13:22:46,334 INFO L93 Difference]: Finished difference Result 928 states and 1197 transitions. [2021-11-17 13:22:46,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 13:22:46,335 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 157 [2021-11-17 13:22:46,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 13:22:46,338 INFO L225 Difference]: With dead ends: 928 [2021-11-17 13:22:46,338 INFO L226 Difference]: Without dead ends: 926 [2021-11-17 13:22:46,338 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-17 13:22:46,338 INFO L933 BasicCegarLoop]: 1129 mSDtfsCounter, 1612 mSDsluCounter, 1549 mSDsCounter, 0 mSdLazyCounter, 798 mSolverCounterSat, 660 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1750 SdHoareTripleChecker+Valid, 2678 SdHoareTripleChecker+Invalid, 1458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 660 IncrementalHoareTripleChecker+Valid, 798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-17 13:22:46,339 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1750 Valid, 2678 Invalid, 1458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [660 Valid, 798 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-17 13:22:46,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2021-11-17 13:22:46,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 926. [2021-11-17 13:22:46,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 625 states have (on average 1.208) internal successors, (755), 654 states have internal predecessors, (755), 219 states have call successors, (219), 67 states have call predecessors, (219), 67 states have return successors, (221), 215 states have call predecessors, (221), 217 states have call successors, (221) [2021-11-17 13:22:46,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1195 transitions. [2021-11-17 13:22:46,379 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1195 transitions. Word has length 157 [2021-11-17 13:22:46,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 13:22:46,379 INFO L470 AbstractCegarLoop]: Abstraction has 926 states and 1195 transitions. [2021-11-17 13:22:46,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-17 13:22:46,379 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1195 transitions. [2021-11-17 13:22:46,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-11-17 13:22:46,381 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 13:22:46,381 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 13:22:46,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-17 13:22:46,381 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-17 13:22:46,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 13:22:46,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1565188194, now seen corresponding path program 1 times [2021-11-17 13:22:46,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 13:22:46,382 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683891871] [2021-11-17 13:22:46,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 13:22:46,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 13:22:46,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:46,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 13:22:46,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:46,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 13:22:46,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:46,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 13:22:46,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:46,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 13:22:46,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:46,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 13:22:46,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:46,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 13:22:46,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:46,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 13:22:46,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:46,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:46,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:46,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 13:22:46,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:46,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 13:22:46,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:46,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 13:22:46,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:46,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 13:22:46,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:46,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 13:22:46,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:46,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 13:22:46,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:46,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 13:22:46,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:46,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 13:22:46,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:46,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 13:22:46,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:46,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-17 13:22:46,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:46,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 13:22:46,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:46,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-17 13:22:46,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:46,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 13:22:46,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:46,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 13:22:46,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:46,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 13:22:46,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:46,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 13:22:46,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:46,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 13:22:46,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:46,535 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-17 13:22:46,535 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 13:22:46,535 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683891871] [2021-11-17 13:22:46,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683891871] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 13:22:46,535 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 13:22:46,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 13:22:46,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349661870] [2021-11-17 13:22:46,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 13:22:46,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 13:22:46,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 13:22:46,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 13:22:46,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 13:22:46,538 INFO L87 Difference]: Start difference. First operand 926 states and 1195 transitions. Second operand has 6 states, 6 states have (on average 16.5) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-17 13:22:48,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 13:22:48,145 INFO L93 Difference]: Finished difference Result 926 states and 1195 transitions. [2021-11-17 13:22:48,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 13:22:48,146 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 163 [2021-11-17 13:22:48,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 13:22:48,149 INFO L225 Difference]: With dead ends: 926 [2021-11-17 13:22:48,149 INFO L226 Difference]: Without dead ends: 924 [2021-11-17 13:22:48,149 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-17 13:22:48,150 INFO L933 BasicCegarLoop]: 1127 mSDtfsCounter, 1606 mSDsluCounter, 1549 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 660 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1743 SdHoareTripleChecker+Valid, 2676 SdHoareTripleChecker+Invalid, 1456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 660 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-17 13:22:48,150 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1743 Valid, 2676 Invalid, 1456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [660 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-17 13:22:48,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2021-11-17 13:22:48,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 924. [2021-11-17 13:22:48,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 924 states, 624 states have (on average 1.2067307692307692) internal successors, (753), 652 states have internal predecessors, (753), 219 states have call successors, (219), 67 states have call predecessors, (219), 67 states have return successors, (221), 215 states have call predecessors, (221), 217 states have call successors, (221) [2021-11-17 13:22:48,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 924 states to 924 states and 1193 transitions. [2021-11-17 13:22:48,205 INFO L78 Accepts]: Start accepts. Automaton has 924 states and 1193 transitions. Word has length 163 [2021-11-17 13:22:48,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 13:22:48,206 INFO L470 AbstractCegarLoop]: Abstraction has 924 states and 1193 transitions. [2021-11-17 13:22:48,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-17 13:22:48,206 INFO L276 IsEmpty]: Start isEmpty. Operand 924 states and 1193 transitions. [2021-11-17 13:22:48,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-11-17 13:22:48,207 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 13:22:48,208 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 13:22:48,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-17 13:22:48,208 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-17 13:22:48,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 13:22:48,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1293557537, now seen corresponding path program 1 times [2021-11-17 13:22:48,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 13:22:48,209 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270197047] [2021-11-17 13:22:48,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 13:22:48,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 13:22:48,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:48,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 13:22:48,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:48,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 13:22:48,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:48,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 13:22:48,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:48,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 13:22:48,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:48,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-11-17 13:22:48,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:48,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:48,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:48,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:22:48,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:48,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:22:48,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:48,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 13:22:48,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:48,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:48,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:48,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:22:48,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:48,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:22:48,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:48,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-17 13:22:48,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:48,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:48,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:48,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:22:48,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:48,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:22:48,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:48,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 13:22:48,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:48,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:48,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:48,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:22:48,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:48,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:22:48,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:48,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 13:22:48,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:48,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:48,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:48,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:22:48,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:48,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:22:48,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:48,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 13:22:48,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:48,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 13:22:48,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:48,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 13:22:48,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:48,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 13:22:48,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:48,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:48,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:48,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:48,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:48,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 13:22:48,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:48,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 13:22:48,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:48,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:48,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:48,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-11-17 13:22:48,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:48,376 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2021-11-17 13:22:48,377 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 13:22:48,377 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270197047] [2021-11-17 13:22:48,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270197047] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 13:22:48,377 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 13:22:48,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 13:22:48,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099625151] [2021-11-17 13:22:48,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 13:22:48,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 13:22:48,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 13:22:48,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 13:22:48,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-17 13:22:48,378 INFO L87 Difference]: Start difference. First operand 924 states and 1193 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (22), 5 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-17 13:22:50,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 13:22:50,661 INFO L93 Difference]: Finished difference Result 1685 states and 2151 transitions. [2021-11-17 13:22:50,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 13:22:50,662 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (22), 5 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 207 [2021-11-17 13:22:50,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 13:22:50,666 INFO L225 Difference]: With dead ends: 1685 [2021-11-17 13:22:50,666 INFO L226 Difference]: Without dead ends: 944 [2021-11-17 13:22:50,667 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-17 13:22:50,668 INFO L933 BasicCegarLoop]: 950 mSDtfsCounter, 2116 mSDsluCounter, 1137 mSDsCounter, 0 mSdLazyCounter, 925 mSolverCounterSat, 1195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2277 SdHoareTripleChecker+Valid, 2087 SdHoareTripleChecker+Invalid, 2120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1195 IncrementalHoareTripleChecker+Valid, 925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-17 13:22:50,668 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2277 Valid, 2087 Invalid, 2120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1195 Valid, 925 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-17 13:22:50,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 944 states. [2021-11-17 13:22:50,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 944 to 920. [2021-11-17 13:22:50,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 621 states have (on average 1.2045088566827697) internal successors, (748), 648 states have internal predecessors, (748), 219 states have call successors, (219), 67 states have call predecessors, (219), 67 states have return successors, (221), 215 states have call predecessors, (221), 217 states have call successors, (221) [2021-11-17 13:22:50,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1188 transitions. [2021-11-17 13:22:50,712 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1188 transitions. Word has length 207 [2021-11-17 13:22:50,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 13:22:50,712 INFO L470 AbstractCegarLoop]: Abstraction has 920 states and 1188 transitions. [2021-11-17 13:22:50,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (22), 5 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-17 13:22:50,712 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1188 transitions. [2021-11-17 13:22:50,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-11-17 13:22:50,714 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 13:22:50,714 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 13:22:50,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-17 13:22:50,714 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-17 13:22:50,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 13:22:50,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1601264781, now seen corresponding path program 1 times [2021-11-17 13:22:50,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 13:22:50,714 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778985720] [2021-11-17 13:22:50,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 13:22:50,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 13:22:50,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:50,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 13:22:50,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:50,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 13:22:50,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:50,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 13:22:50,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:50,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 13:22:50,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:50,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 13:22:50,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:50,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 13:22:50,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:50,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 13:22:50,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:50,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:50,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:50,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 13:22:50,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:50,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 13:22:50,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:50,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 13:22:50,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:50,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 13:22:50,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:50,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 13:22:50,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:50,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 13:22:50,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:50,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 13:22:50,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:50,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 13:22:50,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:50,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 13:22:50,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:50,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-17 13:22:50,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:50,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 13:22:50,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:50,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-17 13:22:50,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:50,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 13:22:50,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:50,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 13:22:50,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:50,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 13:22:50,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:50,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 13:22:50,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:50,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 13:22:50,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:50,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 13:22:50,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:50,874 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-17 13:22:50,875 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 13:22:50,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778985720] [2021-11-17 13:22:50,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778985720] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 13:22:50,875 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 13:22:50,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 13:22:50,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000908721] [2021-11-17 13:22:50,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 13:22:50,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 13:22:50,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 13:22:50,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 13:22:50,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 13:22:50,876 INFO L87 Difference]: Start difference. First operand 920 states and 1188 transitions. Second operand has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-17 13:22:52,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 13:22:52,566 INFO L93 Difference]: Finished difference Result 920 states and 1188 transitions. [2021-11-17 13:22:52,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 13:22:52,567 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 169 [2021-11-17 13:22:52,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 13:22:52,570 INFO L225 Difference]: With dead ends: 920 [2021-11-17 13:22:52,570 INFO L226 Difference]: Without dead ends: 918 [2021-11-17 13:22:52,570 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-17 13:22:52,571 INFO L933 BasicCegarLoop]: 1120 mSDtfsCounter, 1595 mSDsluCounter, 1535 mSDsCounter, 0 mSdLazyCounter, 793 mSolverCounterSat, 660 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1731 SdHoareTripleChecker+Valid, 2655 SdHoareTripleChecker+Invalid, 1453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 660 IncrementalHoareTripleChecker+Valid, 793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-17 13:22:52,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1731 Valid, 2655 Invalid, 1453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [660 Valid, 793 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-17 13:22:52,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 918 states. [2021-11-17 13:22:52,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 918 to 918. [2021-11-17 13:22:52,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 620 states have (on average 1.2032258064516128) internal successors, (746), 646 states have internal predecessors, (746), 219 states have call successors, (219), 67 states have call predecessors, (219), 67 states have return successors, (221), 215 states have call predecessors, (221), 217 states have call successors, (221) [2021-11-17 13:22:52,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1186 transitions. [2021-11-17 13:22:52,613 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1186 transitions. Word has length 169 [2021-11-17 13:22:52,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 13:22:52,613 INFO L470 AbstractCegarLoop]: Abstraction has 918 states and 1186 transitions. [2021-11-17 13:22:52,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-17 13:22:52,614 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1186 transitions. [2021-11-17 13:22:52,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-11-17 13:22:52,615 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 13:22:52,615 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 7, 7, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 13:22:52,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-17 13:22:52,615 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-17 13:22:52,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 13:22:52,616 INFO L85 PathProgramCache]: Analyzing trace with hash 664104994, now seen corresponding path program 1 times [2021-11-17 13:22:52,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 13:22:52,616 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068000778] [2021-11-17 13:22:52,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 13:22:52,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 13:22:52,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:52,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 13:22:52,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:52,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 13:22:52,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:52,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 13:22:52,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:52,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 13:22:52,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:52,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 13:22:52,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:52,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 13:22:52,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:52,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 13:22:52,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:52,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:52,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:52,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 13:22:52,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:52,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 13:22:52,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:52,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 13:22:52,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:52,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-17 13:22:52,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:52,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:52,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:52,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:22:52,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:52,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:22:52,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:52,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 13:22:52,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:52,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:52,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:52,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:22:52,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:52,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:22:52,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:52,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 13:22:52,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:52,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:52,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:52,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:22:52,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:52,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:22:52,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:52,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 13:22:52,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:52,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 13:22:52,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:52,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 13:22:52,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:52,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:52,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:52,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 13:22:52,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:52,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 13:22:52,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:52,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 13:22:52,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:52,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-17 13:22:52,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:52,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-17 13:22:52,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:52,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 13:22:52,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:52,900 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2021-11-17 13:22:52,900 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 13:22:52,901 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068000778] [2021-11-17 13:22:52,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068000778] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 13:22:52,901 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 13:22:52,901 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 13:22:52,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123909630] [2021-11-17 13:22:52,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 13:22:52,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 13:22:52,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 13:22:52,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 13:22:52,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-17 13:22:52,902 INFO L87 Difference]: Start difference. First operand 918 states and 1186 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (29), 6 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-17 13:22:55,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 13:22:55,285 INFO L93 Difference]: Finished difference Result 997 states and 1268 transitions. [2021-11-17 13:22:55,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-17 13:22:55,286 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (29), 6 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 203 [2021-11-17 13:22:55,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 13:22:55,289 INFO L225 Difference]: With dead ends: 997 [2021-11-17 13:22:55,290 INFO L226 Difference]: Without dead ends: 995 [2021-11-17 13:22:55,290 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2021-11-17 13:22:55,290 INFO L933 BasicCegarLoop]: 1113 mSDtfsCounter, 1835 mSDsluCounter, 2852 mSDsCounter, 0 mSdLazyCounter, 1598 mSolverCounterSat, 992 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1955 SdHoareTripleChecker+Valid, 3965 SdHoareTripleChecker+Invalid, 2590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 992 IncrementalHoareTripleChecker+Valid, 1598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-17 13:22:55,291 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1955 Valid, 3965 Invalid, 2590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [992 Valid, 1598 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-17 13:22:55,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2021-11-17 13:22:55,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 969. [2021-11-17 13:22:55,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 969 states, 654 states have (on average 1.194189602446483) internal successors, (781), 679 states have internal predecessors, (781), 226 states have call successors, (226), 78 states have call predecessors, (226), 78 states have return successors, (228), 222 states have call predecessors, (228), 224 states have call successors, (228) [2021-11-17 13:22:55,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1235 transitions. [2021-11-17 13:22:55,339 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1235 transitions. Word has length 203 [2021-11-17 13:22:55,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 13:22:55,339 INFO L470 AbstractCegarLoop]: Abstraction has 969 states and 1235 transitions. [2021-11-17 13:22:55,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (29), 6 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-17 13:22:55,340 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1235 transitions. [2021-11-17 13:22:55,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2021-11-17 13:22:55,341 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 13:22:55,341 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 13:22:55,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-17 13:22:55,341 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-17 13:22:55,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 13:22:55,342 INFO L85 PathProgramCache]: Analyzing trace with hash 577814734, now seen corresponding path program 1 times [2021-11-17 13:22:55,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 13:22:55,342 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645646] [2021-11-17 13:22:55,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 13:22:55,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 13:22:55,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:55,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 13:22:55,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:55,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 13:22:55,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:55,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 13:22:55,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:55,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 13:22:55,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:55,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-11-17 13:22:55,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:55,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:55,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:55,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:22:55,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:55,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:22:55,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:55,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 13:22:55,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:55,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:55,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:55,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:22:55,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:55,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:22:55,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:55,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-17 13:22:55,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:55,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:55,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:55,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:22:55,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:55,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:22:55,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:55,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 13:22:55,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:55,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:55,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:55,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:22:55,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:55,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:22:55,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:55,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 13:22:55,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:55,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:55,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:55,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:22:55,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:55,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:22:55,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:55,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 13:22:55,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:55,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 13:22:55,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:55,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 13:22:55,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:55,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 13:22:55,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:55,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:55,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:55,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:55,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:55,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 13:22:55,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:55,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 13:22:55,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:55,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:55,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:55,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-11-17 13:22:55,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:55,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-11-17 13:22:55,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:55,586 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2021-11-17 13:22:55,586 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 13:22:55,586 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645646] [2021-11-17 13:22:55,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645646] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 13:22:55,586 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2095738007] [2021-11-17 13:22:55,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 13:22:55,587 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 13:22:55,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 13:22:55,604 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) [2021-11-17 13:22:55,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-17 13:22:56,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:56,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 1741 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-17 13:22:56,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 13:22:56,434 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2021-11-17 13:22:56,434 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 13:22:56,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2095738007] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 13:22:56,435 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 13:22:56,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2021-11-17 13:22:56,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540824072] [2021-11-17 13:22:56,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 13:22:56,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-17 13:22:56,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 13:22:56,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-17 13:22:56,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-11-17 13:22:56,437 INFO L87 Difference]: Start difference. First operand 969 states and 1235 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-17 13:22:56,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 13:22:56,503 INFO L93 Difference]: Finished difference Result 1804 states and 2270 transitions. [2021-11-17 13:22:56,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-17 13:22:56,504 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 213 [2021-11-17 13:22:56,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 13:22:56,508 INFO L225 Difference]: With dead ends: 1804 [2021-11-17 13:22:56,508 INFO L226 Difference]: Without dead ends: 1021 [2021-11-17 13:22:56,510 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-11-17 13:22:56,510 INFO L933 BasicCegarLoop]: 1233 mSDtfsCounter, 1102 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1102 SdHoareTripleChecker+Valid, 1300 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 13:22:56,510 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1102 Valid, 1300 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 13:22:56,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1021 states. [2021-11-17 13:22:56,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1021 to 1018. [2021-11-17 13:22:56,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1018 states, 683 states have (on average 1.1874084919472914) internal successors, (811), 711 states have internal predecessors, (811), 241 states have call successors, (241), 84 states have call predecessors, (241), 84 states have return successors, (243), 235 states have call predecessors, (243), 239 states have call successors, (243) [2021-11-17 13:22:56,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1018 states to 1018 states and 1295 transitions. [2021-11-17 13:22:56,565 INFO L78 Accepts]: Start accepts. Automaton has 1018 states and 1295 transitions. Word has length 213 [2021-11-17 13:22:56,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 13:22:56,566 INFO L470 AbstractCegarLoop]: Abstraction has 1018 states and 1295 transitions. [2021-11-17 13:22:56,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-17 13:22:56,566 INFO L276 IsEmpty]: Start isEmpty. Operand 1018 states and 1295 transitions. [2021-11-17 13:22:56,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-17 13:22:56,568 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 13:22:56,568 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 13:22:56,593 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-17 13:22:56,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-11-17 13:22:56,784 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-17 13:22:56,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 13:22:56,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1999876672, now seen corresponding path program 1 times [2021-11-17 13:22:56,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 13:22:56,784 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801967856] [2021-11-17 13:22:56,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 13:22:56,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 13:22:56,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:56,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 13:22:56,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:56,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 13:22:56,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:56,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 13:22:56,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:56,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 13:22:56,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:56,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 13:22:56,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:56,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 13:22:56,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:56,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 13:22:56,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:56,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:56,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:56,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 13:22:56,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:56,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 13:22:56,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:56,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 13:22:56,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:56,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 13:22:56,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:56,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 13:22:56,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:56,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 13:22:56,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:56,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 13:22:56,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:56,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 13:22:56,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:56,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 13:22:56,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:56,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-17 13:22:56,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:56,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 13:22:56,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:56,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-17 13:22:56,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:56,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 13:22:56,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:56,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 13:22:56,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:56,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 13:22:56,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:56,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 13:22:56,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:56,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 13:22:56,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:56,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 13:22:56,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:56,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 13:22:56,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:56,945 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-17 13:22:56,945 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 13:22:56,945 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801967856] [2021-11-17 13:22:56,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801967856] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 13:22:56,946 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 13:22:56,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 13:22:56,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934689692] [2021-11-17 13:22:56,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 13:22:56,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 13:22:56,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 13:22:56,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 13:22:56,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 13:22:56,948 INFO L87 Difference]: Start difference. First operand 1018 states and 1295 transitions. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-17 13:22:59,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 13:22:59,497 INFO L93 Difference]: Finished difference Result 1873 states and 2381 transitions. [2021-11-17 13:22:59,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-17 13:22:59,498 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 175 [2021-11-17 13:22:59,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 13:22:59,504 INFO L225 Difference]: With dead ends: 1873 [2021-11-17 13:22:59,504 INFO L226 Difference]: Without dead ends: 1871 [2021-11-17 13:22:59,505 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-11-17 13:22:59,505 INFO L933 BasicCegarLoop]: 1304 mSDtfsCounter, 2246 mSDsluCounter, 2416 mSDsCounter, 0 mSdLazyCounter, 1569 mSolverCounterSat, 1116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2376 SdHoareTripleChecker+Valid, 3720 SdHoareTripleChecker+Invalid, 2685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1116 IncrementalHoareTripleChecker+Valid, 1569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-17 13:22:59,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2376 Valid, 3720 Invalid, 2685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1116 Valid, 1569 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-17 13:22:59,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1871 states. [2021-11-17 13:22:59,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1871 to 1840. [2021-11-17 13:22:59,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1840 states, 1241 states have (on average 1.1893634165995166) internal successors, (1476), 1282 states have internal predecessors, (1476), 431 states have call successors, (431), 157 states have call predecessors, (431), 158 states have return successors, (447), 422 states have call predecessors, (447), 429 states have call successors, (447) [2021-11-17 13:22:59,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1840 states to 1840 states and 2354 transitions. [2021-11-17 13:22:59,630 INFO L78 Accepts]: Start accepts. Automaton has 1840 states and 2354 transitions. Word has length 175 [2021-11-17 13:22:59,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 13:22:59,630 INFO L470 AbstractCegarLoop]: Abstraction has 1840 states and 2354 transitions. [2021-11-17 13:22:59,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-17 13:22:59,631 INFO L276 IsEmpty]: Start isEmpty. Operand 1840 states and 2354 transitions. [2021-11-17 13:22:59,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-11-17 13:22:59,633 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 13:22:59,633 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 13:22:59,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-17 13:22:59,633 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-17 13:22:59,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 13:22:59,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1330314272, now seen corresponding path program 1 times [2021-11-17 13:22:59,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 13:22:59,634 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704175456] [2021-11-17 13:22:59,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 13:22:59,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 13:22:59,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:59,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 13:22:59,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:59,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 13:22:59,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:59,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 13:22:59,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:59,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 13:22:59,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:59,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 13:22:59,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:59,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 13:22:59,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:59,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 13:22:59,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:59,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:22:59,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:59,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 13:22:59,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:59,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 13:22:59,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:59,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 13:22:59,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:59,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 13:22:59,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:59,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 13:22:59,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:59,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 13:22:59,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:59,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 13:22:59,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:59,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 13:22:59,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:59,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 13:22:59,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:59,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-17 13:22:59,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:59,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 13:22:59,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:59,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-17 13:22:59,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:59,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 13:22:59,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:59,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 13:22:59,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:59,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 13:22:59,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:59,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 13:22:59,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:59,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 13:22:59,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:59,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 13:22:59,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:59,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 13:22:59,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:59,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-17 13:22:59,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:22:59,802 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-17 13:22:59,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 13:22:59,803 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704175456] [2021-11-17 13:22:59,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704175456] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 13:22:59,803 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 13:22:59,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 13:22:59,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484501379] [2021-11-17 13:22:59,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 13:22:59,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 13:22:59,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 13:22:59,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 13:22:59,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 13:22:59,805 INFO L87 Difference]: Start difference. First operand 1840 states and 2354 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-17 13:23:01,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 13:23:01,493 INFO L93 Difference]: Finished difference Result 1840 states and 2354 transitions. [2021-11-17 13:23:01,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 13:23:01,494 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 181 [2021-11-17 13:23:01,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 13:23:01,500 INFO L225 Difference]: With dead ends: 1840 [2021-11-17 13:23:01,500 INFO L226 Difference]: Without dead ends: 1838 [2021-11-17 13:23:01,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-17 13:23:01,501 INFO L933 BasicCegarLoop]: 1111 mSDtfsCounter, 1578 mSDsluCounter, 1521 mSDsCounter, 0 mSdLazyCounter, 788 mSolverCounterSat, 660 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1712 SdHoareTripleChecker+Valid, 2632 SdHoareTripleChecker+Invalid, 1448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 660 IncrementalHoareTripleChecker+Valid, 788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-17 13:23:01,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1712 Valid, 2632 Invalid, 1448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [660 Valid, 788 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-17 13:23:01,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1838 states. [2021-11-17 13:23:01,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1838 to 1838. [2021-11-17 13:23:01,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1838 states, 1240 states have (on average 1.1887096774193548) internal successors, (1474), 1280 states have internal predecessors, (1474), 431 states have call successors, (431), 157 states have call predecessors, (431), 158 states have return successors, (447), 422 states have call predecessors, (447), 429 states have call successors, (447) [2021-11-17 13:23:01,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2352 transitions. [2021-11-17 13:23:01,600 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2352 transitions. Word has length 181 [2021-11-17 13:23:01,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 13:23:01,601 INFO L470 AbstractCegarLoop]: Abstraction has 1838 states and 2352 transitions. [2021-11-17 13:23:01,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-17 13:23:01,601 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2352 transitions. [2021-11-17 13:23:01,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-11-17 13:23:01,603 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 13:23:01,603 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 7, 7, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 13:23:01,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-17 13:23:01,604 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-17 13:23:01,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 13:23:01,604 INFO L85 PathProgramCache]: Analyzing trace with hash -878657064, now seen corresponding path program 1 times [2021-11-17 13:23:01,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 13:23:01,604 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259484214] [2021-11-17 13:23:01,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 13:23:01,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 13:23:01,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:01,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 13:23:01,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:01,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 13:23:01,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:01,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 13:23:01,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:01,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 13:23:01,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:01,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 13:23:01,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:01,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 13:23:01,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:01,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 13:23:01,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:01,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:23:01,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:01,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 13:23:01,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:01,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 13:23:01,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:01,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 13:23:01,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:01,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-17 13:23:01,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:01,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:23:01,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:01,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:23:01,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:01,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:23:01,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:01,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 13:23:01,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:01,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:23:01,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:01,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:23:01,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:01,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:23:01,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:01,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 13:23:01,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:01,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:23:01,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:01,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:23:01,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:01,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:23:01,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:01,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 13:23:01,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:01,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 13:23:01,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:01,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 13:23:01,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:01,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:23:01,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:01,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 13:23:01,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:01,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 13:23:01,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:01,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 13:23:01,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:01,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-17 13:23:01,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:01,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-17 13:23:01,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:01,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 13:23:01,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:01,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 13:23:01,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:01,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:23:01,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:01,858 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2021-11-17 13:23:01,858 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 13:23:01,858 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259484214] [2021-11-17 13:23:01,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259484214] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 13:23:01,859 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 13:23:01,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-17 13:23:01,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778660478] [2021-11-17 13:23:01,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 13:23:01,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-17 13:23:01,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 13:23:01,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-17 13:23:01,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-17 13:23:01,860 INFO L87 Difference]: Start difference. First operand 1838 states and 2352 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (31), 7 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2021-11-17 13:23:06,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 13:23:06,431 INFO L93 Difference]: Finished difference Result 1915 states and 2454 transitions. [2021-11-17 13:23:06,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-17 13:23:06,432 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (31), 7 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) Word has length 214 [2021-11-17 13:23:06,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 13:23:06,444 INFO L225 Difference]: With dead ends: 1915 [2021-11-17 13:23:06,445 INFO L226 Difference]: Without dead ends: 1913 [2021-11-17 13:23:06,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2021-11-17 13:23:06,446 INFO L933 BasicCegarLoop]: 1138 mSDtfsCounter, 1503 mSDsluCounter, 3483 mSDsCounter, 0 mSdLazyCounter, 2439 mSolverCounterSat, 1149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1518 SdHoareTripleChecker+Valid, 4621 SdHoareTripleChecker+Invalid, 3588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1149 IncrementalHoareTripleChecker+Valid, 2439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-11-17 13:23:06,446 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1518 Valid, 4621 Invalid, 3588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1149 Valid, 2439 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2021-11-17 13:23:06,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1913 states. [2021-11-17 13:23:06,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1913 to 1847. [2021-11-17 13:23:06,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1847 states, 1246 states have (on average 1.1861958266452648) internal successors, (1478), 1286 states have internal predecessors, (1478), 431 states have call successors, (431), 157 states have call predecessors, (431), 162 states have return successors, (454), 426 states have call predecessors, (454), 429 states have call successors, (454) [2021-11-17 13:23:06,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1847 states to 1847 states and 2363 transitions. [2021-11-17 13:23:06,563 INFO L78 Accepts]: Start accepts. Automaton has 1847 states and 2363 transitions. Word has length 214 [2021-11-17 13:23:06,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 13:23:06,563 INFO L470 AbstractCegarLoop]: Abstraction has 1847 states and 2363 transitions. [2021-11-17 13:23:06,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (31), 7 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2021-11-17 13:23:06,563 INFO L276 IsEmpty]: Start isEmpty. Operand 1847 states and 2363 transitions. [2021-11-17 13:23:06,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-11-17 13:23:06,565 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 13:23:06,566 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 13:23:06,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-17 13:23:06,567 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-17 13:23:06,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 13:23:06,567 INFO L85 PathProgramCache]: Analyzing trace with hash -701955474, now seen corresponding path program 1 times [2021-11-17 13:23:06,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 13:23:06,567 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505982300] [2021-11-17 13:23:06,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 13:23:06,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 13:23:06,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:06,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 13:23:06,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:06,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 13:23:06,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:06,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 13:23:06,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:06,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 13:23:06,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:06,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 13:23:06,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:06,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 13:23:06,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:06,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 13:23:06,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:06,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:23:06,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:06,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 13:23:06,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:06,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 13:23:06,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:06,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 13:23:06,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:06,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 13:23:06,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:06,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 13:23:06,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:06,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 13:23:06,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:06,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 13:23:06,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:06,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 13:23:06,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:06,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 13:23:06,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:06,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-17 13:23:06,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:06,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 13:23:06,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:06,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-17 13:23:06,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:06,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 13:23:06,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:06,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 13:23:06,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:06,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 13:23:06,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:06,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 13:23:06,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:06,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 13:23:06,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:06,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 13:23:06,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:06,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 13:23:06,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:06,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-17 13:23:06,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:06,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-17 13:23:06,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:06,723 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-17 13:23:06,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 13:23:06,723 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505982300] [2021-11-17 13:23:06,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505982300] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 13:23:06,723 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 13:23:06,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 13:23:06,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469051473] [2021-11-17 13:23:06,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 13:23:06,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 13:23:06,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 13:23:06,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 13:23:06,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 13:23:06,725 INFO L87 Difference]: Start difference. First operand 1847 states and 2363 transitions. Second operand has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-17 13:23:09,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 13:23:09,348 INFO L93 Difference]: Finished difference Result 3551 states and 4564 transitions. [2021-11-17 13:23:09,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-17 13:23:09,349 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 187 [2021-11-17 13:23:09,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 13:23:09,361 INFO L225 Difference]: With dead ends: 3551 [2021-11-17 13:23:09,361 INFO L226 Difference]: Without dead ends: 3393 [2021-11-17 13:23:09,366 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-17 13:23:09,372 INFO L933 BasicCegarLoop]: 1348 mSDtfsCounter, 2211 mSDsluCounter, 2515 mSDsCounter, 0 mSdLazyCounter, 1588 mSolverCounterSat, 1099 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2339 SdHoareTripleChecker+Valid, 3863 SdHoareTripleChecker+Invalid, 2687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1099 IncrementalHoareTripleChecker+Valid, 1588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-17 13:23:09,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2339 Valid, 3863 Invalid, 2687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1099 Valid, 1588 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-11-17 13:23:09,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3393 states. [2021-11-17 13:23:09,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3393 to 3375. [2021-11-17 13:23:09,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3375 states, 2291 states have (on average 1.1929288520296815) internal successors, (2733), 2355 states have internal predecessors, (2733), 780 states have call successors, (780), 286 states have call predecessors, (780), 296 states have return successors, (854), 775 states have call predecessors, (854), 776 states have call successors, (854) [2021-11-17 13:23:09,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3375 states to 3375 states and 4367 transitions. [2021-11-17 13:23:09,592 INFO L78 Accepts]: Start accepts. Automaton has 3375 states and 4367 transitions. Word has length 187 [2021-11-17 13:23:09,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 13:23:09,593 INFO L470 AbstractCegarLoop]: Abstraction has 3375 states and 4367 transitions. [2021-11-17 13:23:09,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-17 13:23:09,593 INFO L276 IsEmpty]: Start isEmpty. Operand 3375 states and 4367 transitions. [2021-11-17 13:23:09,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-11-17 13:23:09,595 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 13:23:09,595 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 13:23:09,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-17 13:23:09,595 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-17 13:23:09,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 13:23:09,596 INFO L85 PathProgramCache]: Analyzing trace with hash -429016518, now seen corresponding path program 1 times [2021-11-17 13:23:09,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 13:23:09,596 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823470863] [2021-11-17 13:23:09,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 13:23:09,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 13:23:09,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:09,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 13:23:09,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:09,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 13:23:09,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:09,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 13:23:09,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:09,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 13:23:09,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:09,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-11-17 13:23:09,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:09,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:23:09,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:09,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:23:09,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:09,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:23:09,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:09,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 13:23:09,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:09,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:23:09,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:09,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:23:09,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:09,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:23:09,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:09,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-17 13:23:09,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:09,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:23:09,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:09,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:23:09,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:09,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:23:09,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:09,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 13:23:09,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:09,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:23:09,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:09,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:23:09,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:09,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:23:09,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:09,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 13:23:09,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:09,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:23:09,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:09,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:23:09,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:09,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:23:09,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:09,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 13:23:09,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:09,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 13:23:09,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:09,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 13:23:09,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:09,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 13:23:09,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:09,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:23:09,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:09,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:23:09,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:09,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 13:23:09,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:09,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 13:23:09,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:09,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:23:09,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:09,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-11-17 13:23:09,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:09,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-11-17 13:23:09,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:09,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-11-17 13:23:09,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:09,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 13:23:09,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:09,832 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2021-11-17 13:23:09,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 13:23:09,832 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823470863] [2021-11-17 13:23:09,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823470863] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 13:23:09,832 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 13:23:09,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 13:23:09,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758470757] [2021-11-17 13:23:09,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 13:23:09,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 13:23:09,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 13:23:09,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 13:23:09,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-17 13:23:09,835 INFO L87 Difference]: Start difference. First operand 3375 states and 4367 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-17 13:23:13,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 13:23:13,815 INFO L93 Difference]: Finished difference Result 7596 states and 10040 transitions. [2021-11-17 13:23:13,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 13:23:13,816 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 234 [2021-11-17 13:23:13,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 13:23:13,828 INFO L225 Difference]: With dead ends: 7596 [2021-11-17 13:23:13,829 INFO L226 Difference]: Without dead ends: 4675 [2021-11-17 13:23:13,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-11-17 13:23:13,836 INFO L933 BasicCegarLoop]: 1582 mSDtfsCounter, 1215 mSDsluCounter, 3344 mSDsCounter, 0 mSdLazyCounter, 1992 mSolverCounterSat, 837 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1330 SdHoareTripleChecker+Valid, 4926 SdHoareTripleChecker+Invalid, 2829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 837 IncrementalHoareTripleChecker+Valid, 1992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-11-17 13:23:13,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1330 Valid, 4926 Invalid, 2829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [837 Valid, 1992 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2021-11-17 13:23:13,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4675 states. [2021-11-17 13:23:14,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4675 to 3387. [2021-11-17 13:23:14,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3387 states, 2299 states have (on average 1.192257503262288) internal successors, (2741), 2364 states have internal predecessors, (2741), 780 states have call successors, (780), 286 states have call predecessors, (780), 300 states have return successors, (861), 779 states have call predecessors, (861), 776 states have call successors, (861) [2021-11-17 13:23:14,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3387 states to 3387 states and 4382 transitions. [2021-11-17 13:23:14,090 INFO L78 Accepts]: Start accepts. Automaton has 3387 states and 4382 transitions. Word has length 234 [2021-11-17 13:23:14,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 13:23:14,090 INFO L470 AbstractCegarLoop]: Abstraction has 3387 states and 4382 transitions. [2021-11-17 13:23:14,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-17 13:23:14,091 INFO L276 IsEmpty]: Start isEmpty. Operand 3387 states and 4382 transitions. [2021-11-17 13:23:14,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2021-11-17 13:23:14,093 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 13:23:14,093 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 13:23:14,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-17 13:23:14,093 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-17 13:23:14,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 13:23:14,094 INFO L85 PathProgramCache]: Analyzing trace with hash 370781952, now seen corresponding path program 1 times [2021-11-17 13:23:14,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 13:23:14,094 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917903229] [2021-11-17 13:23:14,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 13:23:14,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 13:23:14,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:14,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 13:23:14,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:14,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 13:23:14,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:14,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 13:23:14,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:14,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 13:23:14,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:14,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 13:23:14,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:14,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 13:23:14,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:14,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 13:23:14,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:14,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:23:14,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:14,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 13:23:14,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:14,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 13:23:14,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:14,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 13:23:14,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:14,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-17 13:23:14,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:14,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:23:14,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:14,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:23:14,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:14,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:23:14,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:14,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 13:23:14,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:14,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:23:14,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:14,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:23:14,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:14,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:23:14,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:14,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 13:23:14,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:14,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:23:14,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:14,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:23:14,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:14,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:23:14,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:14,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 13:23:14,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:14,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 13:23:14,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:14,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 13:23:14,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:14,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:23:14,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:14,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-11-17 13:23:14,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:14,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:23:14,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:14,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 13:23:14,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:14,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-11-17 13:23:14,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:14,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 13:23:14,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:14,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 13:23:14,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:14,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-11-17 13:23:14,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:14,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-11-17 13:23:14,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:14,284 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 419 trivial. 0 not checked. [2021-11-17 13:23:14,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 13:23:14,285 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917903229] [2021-11-17 13:23:14,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917903229] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 13:23:14,285 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 13:23:14,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 13:23:14,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133957856] [2021-11-17 13:23:14,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 13:23:14,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 13:23:14,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 13:23:14,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 13:23:14,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-17 13:23:14,286 INFO L87 Difference]: Start difference. First operand 3387 states and 4382 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (31), 5 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-17 13:23:17,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 13:23:17,315 INFO L93 Difference]: Finished difference Result 6392 states and 8277 transitions. [2021-11-17 13:23:17,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-17 13:23:17,316 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (31), 5 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 228 [2021-11-17 13:23:17,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 13:23:17,325 INFO L225 Difference]: With dead ends: 6392 [2021-11-17 13:23:17,325 INFO L226 Difference]: Without dead ends: 3461 [2021-11-17 13:23:17,331 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2021-11-17 13:23:17,332 INFO L933 BasicCegarLoop]: 1104 mSDtfsCounter, 988 mSDsluCounter, 3438 mSDsCounter, 0 mSdLazyCounter, 1930 mSolverCounterSat, 820 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 988 SdHoareTripleChecker+Valid, 4542 SdHoareTripleChecker+Invalid, 2750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 820 IncrementalHoareTripleChecker+Valid, 1930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-11-17 13:23:17,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [988 Valid, 4542 Invalid, 2750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [820 Valid, 1930 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-11-17 13:23:17,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3461 states. [2021-11-17 13:23:17,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3461 to 3399. [2021-11-17 13:23:17,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3399 states, 2311 states have (on average 1.1912591951536131) internal successors, (2753), 2376 states have internal predecessors, (2753), 780 states have call successors, (780), 286 states have call predecessors, (780), 300 states have return successors, (861), 779 states have call predecessors, (861), 776 states have call successors, (861) [2021-11-17 13:23:17,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3399 states to 3399 states and 4394 transitions. [2021-11-17 13:23:17,551 INFO L78 Accepts]: Start accepts. Automaton has 3399 states and 4394 transitions. Word has length 228 [2021-11-17 13:23:17,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 13:23:17,552 INFO L470 AbstractCegarLoop]: Abstraction has 3399 states and 4394 transitions. [2021-11-17 13:23:17,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (31), 5 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-17 13:23:17,552 INFO L276 IsEmpty]: Start isEmpty. Operand 3399 states and 4394 transitions. [2021-11-17 13:23:17,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2021-11-17 13:23:17,554 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 13:23:17,554 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 13:23:17,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-11-17 13:23:17,555 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-17 13:23:17,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 13:23:17,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1623362754, now seen corresponding path program 1 times [2021-11-17 13:23:17,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 13:23:17,555 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435107700] [2021-11-17 13:23:17,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 13:23:17,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 13:23:17,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:17,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 13:23:17,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:17,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 13:23:17,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:17,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 13:23:17,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:17,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 13:23:17,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:17,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 13:23:17,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:17,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 13:23:17,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:17,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 13:23:17,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:17,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:23:17,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:17,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 13:23:17,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:17,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 13:23:17,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:17,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 13:23:17,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:17,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-17 13:23:17,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:17,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:23:17,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:17,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:23:17,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:17,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:23:17,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:17,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 13:23:17,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:17,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:23:17,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:17,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:23:17,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:17,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:23:17,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:17,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 13:23:17,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:17,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:23:17,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:17,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:23:17,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:17,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:23:17,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:17,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 13:23:17,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:17,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 13:23:17,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:17,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 13:23:17,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:17,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:23:17,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:17,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-11-17 13:23:17,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:17,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:23:17,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:17,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 13:23:17,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:17,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-11-17 13:23:17,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:17,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 13:23:17,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:17,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 13:23:17,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:17,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-11-17 13:23:17,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:17,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-11-17 13:23:17,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:17,840 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 3 proven. 30 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2021-11-17 13:23:17,841 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 13:23:17,841 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435107700] [2021-11-17 13:23:17,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435107700] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 13:23:17,841 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2063967189] [2021-11-17 13:23:17,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 13:23:17,841 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 13:23:17,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 13:23:17,842 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) [2021-11-17 13:23:17,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-17 13:23:18,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:18,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 1956 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-17 13:23:18,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 13:23:18,749 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2021-11-17 13:23:18,749 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 13:23:18,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2063967189] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 13:23:18,749 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 13:23:18,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [9] total 18 [2021-11-17 13:23:18,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639567948] [2021-11-17 13:23:18,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 13:23:18,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-17 13:23:18,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 13:23:18,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-17 13:23:18,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2021-11-17 13:23:18,751 INFO L87 Difference]: Start difference. First operand 3399 states and 4394 transitions. Second operand has 13 states, 12 states have (on average 7.916666666666667) internal successors, (95), 12 states have internal predecessors, (95), 5 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) [2021-11-17 13:23:19,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 13:23:19,439 INFO L93 Difference]: Finished difference Result 6236 states and 7976 transitions. [2021-11-17 13:23:19,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-17 13:23:19,440 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.916666666666667) internal successors, (95), 12 states have internal predecessors, (95), 5 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) Word has length 228 [2021-11-17 13:23:19,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 13:23:19,448 INFO L225 Difference]: With dead ends: 6236 [2021-11-17 13:23:19,449 INFO L226 Difference]: Without dead ends: 3695 [2021-11-17 13:23:19,453 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=649, Unknown=0, NotChecked=0, Total=756 [2021-11-17 13:23:19,453 INFO L933 BasicCegarLoop]: 1234 mSDtfsCounter, 183 mSDsluCounter, 13209 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 188 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 14443 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 188 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-17 13:23:19,454 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 14443 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [188 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-17 13:23:19,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3695 states. [2021-11-17 13:23:19,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3695 to 3435. [2021-11-17 13:23:19,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3435 states, 2339 states have (on average 1.188969645147499) internal successors, (2781), 2404 states have internal predecessors, (2781), 788 states have call successors, (788), 286 states have call predecessors, (788), 300 states have return successors, (869), 787 states have call predecessors, (869), 784 states have call successors, (869) [2021-11-17 13:23:19,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3435 states to 3435 states and 4438 transitions. [2021-11-17 13:23:19,666 INFO L78 Accepts]: Start accepts. Automaton has 3435 states and 4438 transitions. Word has length 228 [2021-11-17 13:23:19,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 13:23:19,666 INFO L470 AbstractCegarLoop]: Abstraction has 3435 states and 4438 transitions. [2021-11-17 13:23:19,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.916666666666667) internal successors, (95), 12 states have internal predecessors, (95), 5 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) [2021-11-17 13:23:19,666 INFO L276 IsEmpty]: Start isEmpty. Operand 3435 states and 4438 transitions. [2021-11-17 13:23:19,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2021-11-17 13:23:19,668 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 13:23:19,669 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 13:23:19,694 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-17 13:23:19,888 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,SelfDestructingSolverStorable31 [2021-11-17 13:23:19,888 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-17 13:23:19,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 13:23:19,889 INFO L85 PathProgramCache]: Analyzing trace with hash 81717830, now seen corresponding path program 1 times [2021-11-17 13:23:19,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 13:23:19,889 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668826665] [2021-11-17 13:23:19,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 13:23:19,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 13:23:19,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:20,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 13:23:20,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:20,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 13:23:20,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:20,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 13:23:20,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:20,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 13:23:20,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:20,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-11-17 13:23:20,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:20,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:23:20,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:20,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:23:20,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:20,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:23:20,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:20,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 13:23:20,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:20,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:23:20,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:20,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:23:20,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:20,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:23:20,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:20,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-17 13:23:20,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:20,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:23:20,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:20,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:23:20,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:20,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:23:20,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:20,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 13:23:20,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:20,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:23:20,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:20,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:23:20,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:20,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:23:20,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:20,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 13:23:20,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:20,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:23:20,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:20,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 13:23:20,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:20,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 13:23:20,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:20,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 13:23:20,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:20,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 13:23:20,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:20,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 13:23:20,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:20,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 13:23:20,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:20,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:23:20,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:20,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:23:20,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:20,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 13:23:20,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:20,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 13:23:20,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:20,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 13:23:20,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:20,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-11-17 13:23:20,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:20,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 13:23:20,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:20,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-11-17 13:23:20,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:20,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-11-17 13:23:20,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:20,228 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2021-11-17 13:23:20,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 13:23:20,228 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668826665] [2021-11-17 13:23:20,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668826665] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 13:23:20,229 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 13:23:20,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-17 13:23:20,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535453991] [2021-11-17 13:23:20,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 13:23:20,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-17 13:23:20,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 13:23:20,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-17 13:23:20,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2021-11-17 13:23:20,230 INFO L87 Difference]: Start difference. First operand 3435 states and 4438 transitions. Second operand has 13 states, 13 states have (on average 8.23076923076923) internal successors, (107), 8 states have internal predecessors, (107), 3 states have call successors, (28), 6 states have call predecessors, (28), 2 states have return successors, (25), 4 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-17 13:23:25,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 13:23:25,401 INFO L93 Difference]: Finished difference Result 7957 states and 10537 transitions. [2021-11-17 13:23:25,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-17 13:23:25,401 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.23076923076923) internal successors, (107), 8 states have internal predecessors, (107), 3 states have call successors, (28), 6 states have call predecessors, (28), 2 states have return successors, (25), 4 states have call predecessors, (25), 3 states have call successors, (25) Word has length 249 [2021-11-17 13:23:25,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 13:23:25,414 INFO L225 Difference]: With dead ends: 7957 [2021-11-17 13:23:25,414 INFO L226 Difference]: Without dead ends: 4640 [2021-11-17 13:23:25,421 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=408, Unknown=0, NotChecked=0, Total=506 [2021-11-17 13:23:25,422 INFO L933 BasicCegarLoop]: 1530 mSDtfsCounter, 2232 mSDsluCounter, 8785 mSDsCounter, 0 mSdLazyCounter, 4028 mSolverCounterSat, 1583 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2232 SdHoareTripleChecker+Valid, 10315 SdHoareTripleChecker+Invalid, 5611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1583 IncrementalHoareTripleChecker+Valid, 4028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2021-11-17 13:23:25,422 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2232 Valid, 10315 Invalid, 5611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1583 Valid, 4028 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2021-11-17 13:23:25,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4640 states. [2021-11-17 13:23:25,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4640 to 3444. [2021-11-17 13:23:25,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3444 states, 2346 states have (on average 1.1884057971014492) internal successors, (2788), 2411 states have internal predecessors, (2788), 789 states have call successors, (789), 286 states have call predecessors, (789), 301 states have return successors, (871), 789 states have call predecessors, (871), 785 states have call successors, (871) [2021-11-17 13:23:25,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3444 states to 3444 states and 4448 transitions. [2021-11-17 13:23:25,692 INFO L78 Accepts]: Start accepts. Automaton has 3444 states and 4448 transitions. Word has length 249 [2021-11-17 13:23:25,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 13:23:25,693 INFO L470 AbstractCegarLoop]: Abstraction has 3444 states and 4448 transitions. [2021-11-17 13:23:25,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.23076923076923) internal successors, (107), 8 states have internal predecessors, (107), 3 states have call successors, (28), 6 states have call predecessors, (28), 2 states have return successors, (25), 4 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-17 13:23:25,693 INFO L276 IsEmpty]: Start isEmpty. Operand 3444 states and 4448 transitions. [2021-11-17 13:23:25,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2021-11-17 13:23:25,695 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 13:23:25,695 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 13:23:25,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-11-17 13:23:25,695 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-17 13:23:25,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 13:23:25,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1493401337, now seen corresponding path program 1 times [2021-11-17 13:23:25,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 13:23:25,696 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825324450] [2021-11-17 13:23:25,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 13:23:25,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 13:23:25,724 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-17 13:23:25,724 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1678705739] [2021-11-17 13:23:25,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 13:23:25,724 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 13:23:25,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 13:23:25,725 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) [2021-11-17 13:23:25,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-17 13:23:26,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:26,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 2247 conjuncts, 98 conjunts are in the unsatisfiable core [2021-11-17 13:23:26,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 13:23:27,534 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 219 proven. 3 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2021-11-17 13:23:27,534 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 13:23:28,297 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 6 proven. 57 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2021-11-17 13:23:28,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 13:23:28,298 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825324450] [2021-11-17 13:23:28,298 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-17 13:23:28,298 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1678705739] [2021-11-17 13:23:28,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1678705739] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-17 13:23:28,298 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-17 13:23:28,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2021-11-17 13:23:28,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198182855] [2021-11-17 13:23:28,298 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-17 13:23:28,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-17 13:23:28,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 13:23:28,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-17 13:23:28,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-11-17 13:23:28,300 INFO L87 Difference]: Start difference. First operand 3444 states and 4448 transitions. Second operand has 14 states, 13 states have (on average 13.538461538461538) internal successors, (176), 12 states have internal predecessors, (176), 5 states have call successors, (61), 2 states have call predecessors, (61), 5 states have return successors, (60), 6 states have call predecessors, (60), 5 states have call successors, (60) [2021-11-17 13:23:29,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 13:23:29,009 INFO L93 Difference]: Finished difference Result 7777 states and 10233 transitions. [2021-11-17 13:23:29,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 13:23:29,010 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 13.538461538461538) internal successors, (176), 12 states have internal predecessors, (176), 5 states have call successors, (61), 2 states have call predecessors, (61), 5 states have return successors, (60), 6 states have call predecessors, (60), 5 states have call successors, (60) Word has length 270 [2021-11-17 13:23:29,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 13:23:29,022 INFO L225 Difference]: With dead ends: 7777 [2021-11-17 13:23:29,023 INFO L226 Difference]: Without dead ends: 4374 [2021-11-17 13:23:29,030 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 540 GetRequests, 526 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2021-11-17 13:23:29,031 INFO L933 BasicCegarLoop]: 1509 mSDtfsCounter, 373 mSDsluCounter, 12497 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 14006 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-17 13:23:29,031 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [529 Valid, 14006 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-17 13:23:29,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4374 states. [2021-11-17 13:23:29,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4374 to 3444. [2021-11-17 13:23:29,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3444 states, 2346 states have (on average 1.1875532821824382) internal successors, (2786), 2409 states have internal predecessors, (2786), 789 states have call successors, (789), 286 states have call predecessors, (789), 301 states have return successors, (871), 789 states have call predecessors, (871), 785 states have call successors, (871) [2021-11-17 13:23:29,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3444 states to 3444 states and 4446 transitions. [2021-11-17 13:23:29,281 INFO L78 Accepts]: Start accepts. Automaton has 3444 states and 4446 transitions. Word has length 270 [2021-11-17 13:23:29,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 13:23:29,281 INFO L470 AbstractCegarLoop]: Abstraction has 3444 states and 4446 transitions. [2021-11-17 13:23:29,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 13.538461538461538) internal successors, (176), 12 states have internal predecessors, (176), 5 states have call successors, (61), 2 states have call predecessors, (61), 5 states have return successors, (60), 6 states have call predecessors, (60), 5 states have call successors, (60) [2021-11-17 13:23:29,281 INFO L276 IsEmpty]: Start isEmpty. Operand 3444 states and 4446 transitions. [2021-11-17 13:23:29,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2021-11-17 13:23:29,283 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 13:23:29,283 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 13:23:29,315 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-17 13:23:29,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 13:23:29,500 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-17 13:23:29,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 13:23:29,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1146466748, now seen corresponding path program 1 times [2021-11-17 13:23:29,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 13:23:29,500 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896028216] [2021-11-17 13:23:29,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 13:23:29,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 13:23:29,561 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-17 13:23:29,562 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1697451305] [2021-11-17 13:23:29,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 13:23:29,562 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 13:23:29,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 13:23:29,563 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) [2021-11-17 13:23:29,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-17 13:23:33,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 13:23:34,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 2263 conjuncts, 48 conjunts are in the unsatisfiable core [2021-11-17 13:23:34,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 13:23:34,488 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 289 proven. 3 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2021-11-17 13:23:34,488 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 13:23:35,184 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 18 proven. 45 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2021-11-17 13:23:35,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 13:23:35,185 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896028216] [2021-11-17 13:23:35,185 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-17 13:23:35,185 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697451305] [2021-11-17 13:23:35,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1697451305] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-17 13:23:35,185 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-17 13:23:35,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2021-11-17 13:23:35,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239619505] [2021-11-17 13:23:35,186 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-17 13:23:35,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-17 13:23:35,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 13:23:35,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-17 13:23:35,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-11-17 13:23:35,187 INFO L87 Difference]: Start difference. First operand 3444 states and 4446 transitions. Second operand has 14 states, 13 states have (on average 13.692307692307692) internal successors, (178), 12 states have internal predecessors, (178), 5 states have call successors, (61), 2 states have call predecessors, (61), 5 states have return successors, (60), 6 states have call predecessors, (60), 5 states have call successors, (60) [2021-11-17 13:23:35,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 13:23:35,944 INFO L93 Difference]: Finished difference Result 7764 states and 10213 transitions. [2021-11-17 13:23:35,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 13:23:35,945 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 13.692307692307692) internal successors, (178), 12 states have internal predecessors, (178), 5 states have call successors, (61), 2 states have call predecessors, (61), 5 states have return successors, (60), 6 states have call predecessors, (60), 5 states have call successors, (60) Word has length 274 [2021-11-17 13:23:35,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 13:23:35,956 INFO L225 Difference]: With dead ends: 7764 [2021-11-17 13:23:35,956 INFO L226 Difference]: Without dead ends: 4374 [2021-11-17 13:23:35,963 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 548 GetRequests, 534 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2021-11-17 13:23:35,964 INFO L933 BasicCegarLoop]: 1508 mSDtfsCounter, 729 mSDsluCounter, 8507 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 883 SdHoareTripleChecker+Valid, 10015 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-17 13:23:35,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [883 Valid, 10015 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-17 13:23:35,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4374 states. [2021-11-17 13:23:36,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4374 to 3444. [2021-11-17 13:23:36,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3444 states, 2346 states have (on average 1.186700767263427) internal successors, (2784), 2407 states have internal predecessors, (2784), 789 states have call successors, (789), 286 states have call predecessors, (789), 301 states have return successors, (871), 789 states have call predecessors, (871), 785 states have call successors, (871) [2021-11-17 13:23:36,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3444 states to 3444 states and 4444 transitions. [2021-11-17 13:23:36,274 INFO L78 Accepts]: Start accepts. Automaton has 3444 states and 4444 transitions. Word has length 274 [2021-11-17 13:23:36,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 13:23:36,274 INFO L470 AbstractCegarLoop]: Abstraction has 3444 states and 4444 transitions. [2021-11-17 13:23:36,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 13.692307692307692) internal successors, (178), 12 states have internal predecessors, (178), 5 states have call successors, (61), 2 states have call predecessors, (61), 5 states have return successors, (60), 6 states have call predecessors, (60), 5 states have call successors, (60) [2021-11-17 13:23:36,275 INFO L276 IsEmpty]: Start isEmpty. Operand 3444 states and 4444 transitions. [2021-11-17 13:23:36,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2021-11-17 13:23:36,277 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 13:23:36,277 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 13:23:36,309 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-17 13:23:36,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 13:23:36,484 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-17 13:23:36,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 13:23:36,484 INFO L85 PathProgramCache]: Analyzing trace with hash -816926247, now seen corresponding path program 1 times [2021-11-17 13:23:36,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 13:23:36,484 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653920283] [2021-11-17 13:23:36,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 13:23:36,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 13:23:36,519 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-17 13:23:36,520 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [668166674] [2021-11-17 13:23:36,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 13:23:36,520 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 13:23:36,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 13:23:36,521 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) [2021-11-17 13:23:36,522 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-17 13:34:40,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-17 13:34:40,028 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. Killed by 15