./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--input--misc--ims-pcu.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/bin/utaipan-TEXQjIfE4P --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e0c2b6cb89e48a11e817cc51933cd8194bf8c1187502e8ea2a988dbf620106e5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 23:12:47,095 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 23:12:47,096 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 23:12:47,151 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 23:12:47,151 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 23:12:47,152 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 23:12:47,160 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 23:12:47,164 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 23:12:47,167 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 23:12:47,172 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 23:12:47,173 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 23:12:47,175 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 23:12:47,176 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 23:12:47,178 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 23:12:47,181 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 23:12:47,183 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 23:12:47,185 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 23:12:47,186 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 23:12:47,192 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 23:12:47,202 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 23:12:47,203 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 23:12:47,205 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 23:12:47,208 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 23:12:47,209 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 23:12:47,213 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 23:12:47,213 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 23:12:47,214 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 23:12:47,215 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 23:12:47,216 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 23:12:47,217 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 23:12:47,218 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 23:12:47,219 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 23:12:47,221 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 23:12:47,222 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 23:12:47,224 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 23:12:47,224 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 23:12:47,225 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 23:12:47,225 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 23:12:47,225 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 23:12:47,226 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 23:12:47,227 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 23:12:47,228 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-20 23:12:47,275 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 23:12:47,275 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 23:12:47,275 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 23:12:47,275 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 23:12:47,276 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 23:12:47,276 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 23:12:47,276 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 23:12:47,277 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 23:12:47,277 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 23:12:47,277 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 23:12:47,279 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 23:12:47,280 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 23:12:47,280 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 23:12:47,280 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 23:12:47,280 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 23:12:47,280 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 23:12:47,281 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 23:12:47,281 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 23:12:47,282 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 23:12:47,282 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 23:12:47,282 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 23:12:47,282 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 23:12:47,283 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 23:12:47,283 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 23:12:47,283 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 23:12:47,283 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 23:12:47,285 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 23:12:47,285 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 23:12:47,286 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 23:12:47,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:12:47,286 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 23:12:47,287 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 23:12:47,287 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 23:12:47,287 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 23:12:47,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 23:12:47,287 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 23:12:47,288 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 23:12:47,288 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 23:12:47,289 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0c2b6cb89e48a11e817cc51933cd8194bf8c1187502e8ea2a988dbf620106e5 [2021-11-20 23:12:47,530 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 23:12:47,556 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 23:12:47,559 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 23:12:47,560 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 23:12:47,561 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 23:12:47,562 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i [2021-11-20 23:12:47,662 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/bin/utaipan-TEXQjIfE4P/data/c349b8eb5/03fdb68b5e594d689617cfff4d8904a7/FLAGc80c4b66a [2021-11-20 23:12:48,585 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 23:12:48,586 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i [2021-11-20 23:12:48,648 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/bin/utaipan-TEXQjIfE4P/data/c349b8eb5/03fdb68b5e594d689617cfff4d8904a7/FLAGc80c4b66a [2021-11-20 23:12:48,994 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/bin/utaipan-TEXQjIfE4P/data/c349b8eb5/03fdb68b5e594d689617cfff4d8904a7 [2021-11-20 23:12:48,996 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 23:12:48,998 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 23:12:49,003 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 23:12:49,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 23:12:49,006 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 23:12:49,006 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:12:48" (1/1) ... [2021-11-20 23:12:49,008 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68f2e549 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:49, skipping insertion in model container [2021-11-20 23:12:49,008 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:12:48" (1/1) ... [2021-11-20 23:12:49,016 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 23:12:49,226 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 23:12:52,677 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[341006,341019] [2021-11-20 23:12:52,680 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[341151,341164] [2021-11-20 23:12:52,681 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[341297,341310] [2021-11-20 23:12:52,684 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[341462,341475] [2021-11-20 23:12:52,692 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[341620,341633] [2021-11-20 23:12:52,693 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[341778,341791] [2021-11-20 23:12:52,694 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[341936,341949] [2021-11-20 23:12:52,694 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[342096,342109] [2021-11-20 23:12:52,695 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[342255,342268] [2021-11-20 23:12:52,695 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[342394,342407] [2021-11-20 23:12:52,696 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[342536,342549] [2021-11-20 23:12:52,697 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[342685,342698] [2021-11-20 23:12:52,698 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[342824,342837] [2021-11-20 23:12:52,698 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[342979,342992] [2021-11-20 23:12:52,699 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[343139,343152] [2021-11-20 23:12:52,703 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[343290,343303] [2021-11-20 23:12:52,704 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[343441,343454] [2021-11-20 23:12:52,705 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[343593,343606] [2021-11-20 23:12:52,706 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[343742,343755] [2021-11-20 23:12:52,708 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[343890,343903] [2021-11-20 23:12:52,709 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[344047,344060] [2021-11-20 23:12:52,709 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[344196,344209] [2021-11-20 23:12:52,710 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[344352,344365] [2021-11-20 23:12:52,711 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[344505,344518] [2021-11-20 23:12:52,713 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[344651,344664] [2021-11-20 23:12:52,713 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[344794,344807] [2021-11-20 23:12:52,714 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[344946,344959] [2021-11-20 23:12:52,715 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[345092,345105] [2021-11-20 23:12:52,715 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[345237,345250] [2021-11-20 23:12:52,717 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[345391,345404] [2021-11-20 23:12:52,717 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[345542,345555] [2021-11-20 23:12:52,718 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[345697,345710] [2021-11-20 23:12:52,718 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[345849,345862] [2021-11-20 23:12:52,719 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[346004,346017] [2021-11-20 23:12:52,719 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[346168,346181] [2021-11-20 23:12:52,719 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[346324,346337] [2021-11-20 23:12:52,720 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[346488,346501] [2021-11-20 23:12:52,720 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[346630,346643] [2021-11-20 23:12:52,721 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[346788,346801] [2021-11-20 23:12:52,721 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[346955,346968] [2021-11-20 23:12:52,722 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[347114,347127] [2021-11-20 23:12:52,722 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[347273,347286] [2021-11-20 23:12:52,723 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[347422,347435] [2021-11-20 23:12:52,723 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[347569,347582] [2021-11-20 23:12:52,724 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[347708,347721] [2021-11-20 23:12:52,724 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[347871,347884] [2021-11-20 23:12:52,725 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[348037,348050] [2021-11-20 23:12:52,726 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[348201,348214] [2021-11-20 23:12:52,726 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[348366,348379] [2021-11-20 23:12:52,727 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[348531,348544] [2021-11-20 23:12:52,727 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[348697,348710] [2021-11-20 23:12:52,728 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[348862,348875] [2021-11-20 23:12:52,728 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[349029,349042] [2021-11-20 23:12:52,729 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[349189,349202] [2021-11-20 23:12:52,729 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[349351,349364] [2021-11-20 23:12:52,730 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[349510,349523] [2021-11-20 23:12:52,730 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[349656,349669] [2021-11-20 23:12:52,731 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[349799,349812] [2021-11-20 23:12:52,731 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[349943,349956] [2021-11-20 23:12:52,732 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[350086,350099] [2021-11-20 23:12:52,732 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[350230,350243] [2021-11-20 23:12:52,733 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[350371,350384] [2021-11-20 23:12:52,733 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[350509,350522] [2021-11-20 23:12:52,734 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[350667,350680] [2021-11-20 23:12:52,734 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[350826,350839] [2021-11-20 23:12:52,735 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[350982,350995] [2021-11-20 23:12:52,735 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[351131,351144] [2021-11-20 23:12:52,736 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[351283,351296] [2021-11-20 23:12:52,736 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[351434,351447] [2021-11-20 23:12:52,737 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[351583,351596] [2021-11-20 23:12:52,737 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[351735,351748] [2021-11-20 23:12:52,738 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[351883,351896] [2021-11-20 23:12:52,738 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[352036,352049] [2021-11-20 23:12:52,739 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[352187,352200] [2021-11-20 23:12:52,739 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[352337,352350] [2021-11-20 23:12:52,740 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[352484,352497] [2021-11-20 23:12:52,740 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[352635,352648] [2021-11-20 23:12:52,740 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[352786,352799] [2021-11-20 23:12:52,741 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[352934,352947] [2021-11-20 23:12:52,741 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[353100,353113] [2021-11-20 23:12:52,742 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[353269,353282] [2021-11-20 23:12:52,742 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[353436,353449] [2021-11-20 23:12:52,743 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[353604,353617] [2021-11-20 23:12:52,743 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[353754,353767] [2021-11-20 23:12:52,745 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[353901,353914] [2021-11-20 23:12:52,745 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[354062,354075] [2021-11-20 23:12:52,746 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[354232,354245] [2021-11-20 23:12:52,747 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[354394,354407] [2021-11-20 23:12:52,755 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:12:52,804 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 23:12:53,184 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[341006,341019] [2021-11-20 23:12:53,185 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[341151,341164] [2021-11-20 23:12:53,185 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[341297,341310] [2021-11-20 23:12:53,185 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[341462,341475] [2021-11-20 23:12:53,186 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[341620,341633] [2021-11-20 23:12:53,186 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[341778,341791] [2021-11-20 23:12:53,187 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[341936,341949] [2021-11-20 23:12:53,187 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[342096,342109] [2021-11-20 23:12:53,187 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[342255,342268] [2021-11-20 23:12:53,188 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[342394,342407] [2021-11-20 23:12:53,189 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[342536,342549] [2021-11-20 23:12:53,189 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[342685,342698] [2021-11-20 23:12:53,189 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[342824,342837] [2021-11-20 23:12:53,190 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[342979,342992] [2021-11-20 23:12:53,190 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[343139,343152] [2021-11-20 23:12:53,191 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[343290,343303] [2021-11-20 23:12:53,191 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[343441,343454] [2021-11-20 23:12:53,191 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[343593,343606] [2021-11-20 23:12:53,192 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[343742,343755] [2021-11-20 23:12:53,192 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[343890,343903] [2021-11-20 23:12:53,192 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[344047,344060] [2021-11-20 23:12:53,193 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[344196,344209] [2021-11-20 23:12:53,193 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[344352,344365] [2021-11-20 23:12:53,194 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[344505,344518] [2021-11-20 23:12:53,195 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[344651,344664] [2021-11-20 23:12:53,195 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[344794,344807] [2021-11-20 23:12:53,196 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[344946,344959] [2021-11-20 23:12:53,197 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[345092,345105] [2021-11-20 23:12:53,197 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[345237,345250] [2021-11-20 23:12:53,198 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[345391,345404] [2021-11-20 23:12:53,198 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[345542,345555] [2021-11-20 23:12:53,199 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[345697,345710] [2021-11-20 23:12:53,199 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[345849,345862] [2021-11-20 23:12:53,200 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[346004,346017] [2021-11-20 23:12:53,201 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[346168,346181] [2021-11-20 23:12:53,201 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[346324,346337] [2021-11-20 23:12:53,201 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[346488,346501] [2021-11-20 23:12:53,202 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[346630,346643] [2021-11-20 23:12:53,202 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[346788,346801] [2021-11-20 23:12:53,203 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[346955,346968] [2021-11-20 23:12:53,204 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[347114,347127] [2021-11-20 23:12:53,205 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[347273,347286] [2021-11-20 23:12:53,205 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[347422,347435] [2021-11-20 23:12:53,205 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[347569,347582] [2021-11-20 23:12:53,206 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[347708,347721] [2021-11-20 23:12:53,206 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[347871,347884] [2021-11-20 23:12:53,207 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[348037,348050] [2021-11-20 23:12:53,207 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[348201,348214] [2021-11-20 23:12:53,207 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[348366,348379] [2021-11-20 23:12:53,208 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[348531,348544] [2021-11-20 23:12:53,209 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[348697,348710] [2021-11-20 23:12:53,210 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[348862,348875] [2021-11-20 23:12:53,210 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[349029,349042] [2021-11-20 23:12:53,211 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[349189,349202] [2021-11-20 23:12:53,212 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[349351,349364] [2021-11-20 23:12:53,213 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[349510,349523] [2021-11-20 23:12:53,216 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[349656,349669] [2021-11-20 23:12:53,217 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[349799,349812] [2021-11-20 23:12:53,218 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[349943,349956] [2021-11-20 23:12:53,218 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[350086,350099] [2021-11-20 23:12:53,220 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[350230,350243] [2021-11-20 23:12:53,221 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[350371,350384] [2021-11-20 23:12:53,225 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[350509,350522] [2021-11-20 23:12:53,226 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[350667,350680] [2021-11-20 23:12:53,227 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[350826,350839] [2021-11-20 23:12:53,232 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[350982,350995] [2021-11-20 23:12:53,233 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[351131,351144] [2021-11-20 23:12:53,233 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[351283,351296] [2021-11-20 23:12:53,238 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[351434,351447] [2021-11-20 23:12:53,239 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[351583,351596] [2021-11-20 23:12:53,239 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[351735,351748] [2021-11-20 23:12:53,239 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[351883,351896] [2021-11-20 23:12:53,240 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[352036,352049] [2021-11-20 23:12:53,240 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[352187,352200] [2021-11-20 23:12:53,240 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[352337,352350] [2021-11-20 23:12:53,241 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[352484,352497] [2021-11-20 23:12:53,241 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[352635,352648] [2021-11-20 23:12:53,241 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[352786,352799] [2021-11-20 23:12:53,242 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[352934,352947] [2021-11-20 23:12:53,243 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[353100,353113] [2021-11-20 23:12:53,243 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[353269,353282] [2021-11-20 23:12:53,244 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[353436,353449] [2021-11-20 23:12:53,245 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[353604,353617] [2021-11-20 23:12:53,245 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[353754,353767] [2021-11-20 23:12:53,246 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[353901,353914] [2021-11-20 23:12:53,246 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[354062,354075] [2021-11-20 23:12:53,246 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[354232,354245] [2021-11-20 23:12:53,247 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i[354394,354407] [2021-11-20 23:12:53,250 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:12:53,564 INFO L208 MainTranslator]: Completed translation [2021-11-20 23:12:53,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:53 WrapperNode [2021-11-20 23:12:53,565 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 23:12:53,566 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 23:12:53,566 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 23:12:53,566 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 23:12:53,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:53" (1/1) ... [2021-11-20 23:12:53,736 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:53" (1/1) ... [2021-11-20 23:12:53,967 INFO L137 Inliner]: procedures = 609, calls = 2320, calls flagged for inlining = 291, calls inlined = 202, statements flattened = 4611 [2021-11-20 23:12:53,968 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 23:12:53,969 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 23:12:53,969 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 23:12:53,969 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 23:12:53,978 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:53" (1/1) ... [2021-11-20 23:12:53,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:53" (1/1) ... [2021-11-20 23:12:54,051 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:53" (1/1) ... [2021-11-20 23:12:54,052 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:53" (1/1) ... [2021-11-20 23:12:54,179 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:53" (1/1) ... [2021-11-20 23:12:54,207 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:53" (1/1) ... [2021-11-20 23:12:54,243 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:53" (1/1) ... [2021-11-20 23:12:54,279 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 23:12:54,281 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 23:12:54,281 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 23:12:54,281 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 23:12:54,282 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:53" (1/1) ... [2021-11-20 23:12:54,290 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:12:54,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:12:54,315 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 23:12:54,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 23:12:54,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2021-11-20 23:12:54,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2021-11-20 23:12:54,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-20 23:12:54,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-20 23:12:54,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-20 23:12:54,364 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-20 23:12:54,364 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_handle_firmware_update [2021-11-20 23:12:54,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_handle_firmware_update [2021-11-20 23:12:54,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-20 23:12:54,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-20 23:12:54,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-20 23:12:54,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-20 23:12:54,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_usb_alloc_coherent [2021-11-20 23:12:54,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_usb_alloc_coherent [2021-11-20 23:12:54,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-20 23:12:54,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-20 23:12:54,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-20 23:12:54,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-20 23:12:54,366 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-20 23:12:54,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_sysfs_create_group [2021-11-20 23:12:54,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_sysfs_create_group [2021-11-20 23:12:54,366 INFO L130 BoogieDeclarations]: Found specification of procedure ihex_next_binrec [2021-11-20 23:12:54,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ihex_next_binrec [2021-11-20 23:12:54,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-20 23:12:54,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-20 23:12:54,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-20 23:12:54,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-20 23:12:54,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-20 23:12:54,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-20 23:12:54,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 23:12:54,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-20 23:12:54,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-20 23:12:54,368 INFO L130 BoogieDeclarations]: Found specification of procedure __ims_pcu_execute_bl_command [2021-11-20 23:12:54,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __ims_pcu_execute_bl_command [2021-11-20 23:12:54,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-20 23:12:54,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-20 23:12:54,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-20 23:12:54,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-20 23:12:54,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-20 23:12:54,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-20 23:12:54,369 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2021-11-20 23:12:54,369 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2021-11-20 23:12:54,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-20 23:12:54,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-20 23:12:54,369 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 23:12:54,369 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_ofn_bit_store [2021-11-20 23:12:54,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_ofn_bit_store [2021-11-20 23:12:54,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-20 23:12:54,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-20 23:12:54,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-20 23:12:54,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-20 23:12:54,371 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_destroy_backlight [2021-11-20 23:12:54,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_destroy_backlight [2021-11-20 23:12:54,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-20 23:12:54,371 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-20 23:12:54,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-20 23:12:54,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-20 23:12:54,371 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_resume [2021-11-20 23:12:54,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_resume [2021-11-20 23:12:54,372 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-11-20 23:12:54,372 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-11-20 23:12:54,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-20 23:12:54,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-20 23:12:54,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_completion_94 [2021-11-20 23:12:54,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_completion_94 [2021-11-20 23:12:54,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-20 23:12:54,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-20 23:12:54,377 INFO L130 BoogieDeclarations]: Found specification of procedure usb_to_input_id [2021-11-20 23:12:54,377 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_to_input_id [2021-11-20 23:12:54,377 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoint [2021-11-20 23:12:54,378 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoint [2021-11-20 23:12:54,378 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-20 23:12:54,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-20 23:12:54,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 23:12:54,379 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_line_setup [2021-11-20 23:12:54,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_line_setup [2021-11-20 23:12:54,381 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2021-11-20 23:12:54,381 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2021-11-20 23:12:54,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 23:12:54,381 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_stop_io [2021-11-20 23:12:54,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_stop_io [2021-11-20 23:12:54,381 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-20 23:12:54,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-20 23:12:54,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 23:12:54,382 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-20 23:12:54,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-20 23:12:54,382 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2021-11-20 23:12:54,382 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2021-11-20 23:12:54,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_cmd_mutex_of_ims_pcu [2021-11-20 23:12:54,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_cmd_mutex_of_ims_pcu [2021-11-20 23:12:54,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_irq_check_alloc_flags [2021-11-20 23:12:54,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_irq_check_alloc_flags [2021-11-20 23:12:54,383 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2021-11-20 23:12:54,383 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2021-11-20 23:12:54,383 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_write_ofn_config [2021-11-20 23:12:54,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_write_ofn_config [2021-11-20 23:12:54,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-20 23:12:54,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-20 23:12:54,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_sysfs_remove_group [2021-11-20 23:12:54,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_sysfs_remove_group [2021-11-20 23:12:54,384 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_disconnect [2021-11-20 23:12:54,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_disconnect [2021-11-20 23:12:54,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 23:12:54,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 23:12:54,385 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-11-20 23:12:54,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-11-20 23:12:54,385 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-11-20 23:12:54,385 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-11-20 23:12:54,385 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-20 23:12:54,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-20 23:12:54,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-20 23:12:54,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-20 23:12:54,386 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2021-11-20 23:12:54,386 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2021-11-20 23:12:54,386 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2021-11-20 23:12:54,386 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2021-11-20 23:12:54,386 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2021-11-20 23:12:54,387 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2021-11-20 23:12:54,387 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_get_info [2021-11-20 23:12:54,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_get_info [2021-11-20 23:12:54,387 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2021-11-20 23:12:54,388 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2021-11-20 23:12:54,388 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_ofn_reg_addr_store [2021-11-20 23:12:54,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_ofn_reg_addr_store [2021-11-20 23:12:54,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-20 23:12:54,388 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-20 23:12:54,388 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2021-11-20 23:12:54,388 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2021-11-20 23:12:54,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-20 23:12:54,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-20 23:12:54,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_free_urb [2021-11-20 23:12:54,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_free_urb [2021-11-20 23:12:54,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_interruptible_or_killable_cmd_mutex_of_ims_pcu [2021-11-20 23:12:54,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_interruptible_or_killable_cmd_mutex_of_ims_pcu [2021-11-20 23:12:54,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-20 23:12:54,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-20 23:12:54,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 23:12:54,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-20 23:12:54,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-20 23:12:54,390 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_buffers_free [2021-11-20 23:12:54,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_buffers_free [2021-11-20 23:12:54,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 23:12:54,390 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2021-11-20 23:12:54,390 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2021-11-20 23:12:54,391 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2021-11-20 23:12:54,391 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2021-11-20 23:12:54,391 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2021-11-20 23:12:54,391 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2021-11-20 23:12:54,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_usb_free_coherent [2021-11-20 23:12:54,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_usb_free_coherent [2021-11-20 23:12:54,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_cmd_mutex_of_ims_pcu [2021-11-20 23:12:54,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_cmd_mutex_of_ims_pcu [2021-11-20 23:12:54,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 23:12:54,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_sched_completion__wait_without_init [2021-11-20 23:12:54,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_sched_completion__wait_without_init [2021-11-20 23:12:54,392 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-20 23:12:54,392 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-20 23:12:54,392 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-20 23:12:54,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-20 23:12:54,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-20 23:12:54,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-20 23:12:54,393 INFO L130 BoogieDeclarations]: Found specification of procedure __ims_pcu_execute_command [2021-11-20 23:12:54,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __ims_pcu_execute_command [2021-11-20 23:12:54,393 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-11-20 23:12:54,393 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-11-20 23:12:54,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-20 23:12:54,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-20 23:12:54,394 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2021-11-20 23:12:54,394 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2021-11-20 23:12:54,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-20 23:12:54,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-20 23:12:54,394 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_read_ofn_config [2021-11-20 23:12:54,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_read_ofn_config [2021-11-20 23:12:54,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2021-11-20 23:12:54,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2021-11-20 23:12:54,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_alloc_urb [2021-11-20 23:12:54,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_alloc_urb [2021-11-20 23:12:54,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-20 23:12:54,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-20 23:12:54,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-20 23:12:54,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-20 23:12:54,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-20 23:12:54,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-20 23:12:54,396 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2021-11-20 23:12:54,396 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2021-11-20 23:12:54,396 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_ofn_bit_show [2021-11-20 23:12:54,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_ofn_bit_show [2021-11-20 23:12:54,397 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-20 23:12:54,397 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-20 23:12:54,397 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_destroy_buttons [2021-11-20 23:12:54,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_destroy_buttons [2021-11-20 23:12:54,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-20 23:12:54,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-20 23:12:54,397 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-20 23:12:54,398 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-20 23:12:54,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-20 23:12:54,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-20 23:12:54,398 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_start_io [2021-11-20 23:12:54,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_start_io [2021-11-20 23:12:54,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 23:12:54,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-20 23:12:54,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-20 23:12:54,399 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_send_cmd_chunk [2021-11-20 23:12:54,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_send_cmd_chunk [2021-11-20 23:12:54,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-20 23:12:54,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-20 23:12:54,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-20 23:12:54,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-20 23:12:54,400 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2021-11-20 23:12:54,400 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2021-11-20 23:12:54,400 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_byte_needs_escape [2021-11-20 23:12:54,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_byte_needs_escape [2021-11-20 23:12:54,401 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2021-11-20 23:12:54,401 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2021-11-20 23:12:54,401 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit [2021-11-20 23:12:54,401 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit [2021-11-20 23:12:54,401 INFO L130 BoogieDeclarations]: Found specification of procedure ihex_validate_fw [2021-11-20 23:12:54,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ihex_validate_fw [2021-11-20 23:12:54,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-20 23:12:54,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-20 23:12:54,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-20 23:12:54,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-20 23:12:54,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 23:12:54,402 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtou8 [2021-11-20 23:12:54,402 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtou8 [2021-11-20 23:12:55,260 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 23:12:55,264 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 23:12:55,370 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-20 23:12:58,886 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 23:12:59,507 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 23:12:59,507 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 23:12:59,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:12:59 BoogieIcfgContainer [2021-11-20 23:12:59,513 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 23:12:59,517 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 23:12:59,517 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 23:12:59,521 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 23:12:59,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:12:48" (1/3) ... [2021-11-20 23:12:59,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a0c461f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:12:59, skipping insertion in model container [2021-11-20 23:12:59,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:53" (2/3) ... [2021-11-20 23:12:59,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a0c461f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:12:59, skipping insertion in model container [2021-11-20 23:12:59,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:12:59" (3/3) ... [2021-11-20 23:12:59,525 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--input--misc--ims-pcu.ko.cil.i [2021-11-20 23:12:59,531 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 23:12:59,531 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 31 error locations. [2021-11-20 23:12:59,594 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 23:12:59,600 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=FINITE_AUTOMATA, 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 [2021-11-20 23:12:59,600 INFO L340 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2021-11-20 23:12:59,653 INFO L276 IsEmpty]: Start isEmpty. Operand has 1200 states, 680 states have (on average 1.2882352941176471) internal successors, (876), 736 states have internal predecessors, (876), 385 states have call successors, (385), 104 states have call predecessors, (385), 103 states have return successors, (382), 382 states have call predecessors, (382), 382 states have call successors, (382) [2021-11-20 23:12:59,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-20 23:12:59,660 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:12:59,661 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-11-20 23:12:59,662 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-20 23:12:59,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:12:59,667 INFO L85 PathProgramCache]: Analyzing trace with hash 2146286431, now seen corresponding path program 1 times [2021-11-20 23:12:59,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:12:59,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267510692] [2021-11-20 23:12:59,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:12:59,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:00,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:00,324 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 23:13:00,325 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:00,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267510692] [2021-11-20 23:13:00,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267510692] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:00,326 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:13:00,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:13:00,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123618655] [2021-11-20 23:13:00,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:00,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:13:00,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:00,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:13:00,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:13:00,364 INFO L87 Difference]: Start difference. First operand has 1200 states, 680 states have (on average 1.2882352941176471) internal successors, (876), 736 states have internal predecessors, (876), 385 states have call successors, (385), 104 states have call predecessors, (385), 103 states have return successors, (382), 382 states have call predecessors, (382), 382 states have call successors, (382) Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-20 23:13:02,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:13:02,308 INFO L93 Difference]: Finished difference Result 2363 states and 3367 transitions. [2021-11-20 23:13:02,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:13:02,311 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (11), 2 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 51 [2021-11-20 23:13:02,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:13:02,351 INFO L225 Difference]: With dead ends: 2363 [2021-11-20 23:13:02,355 INFO L226 Difference]: Without dead ends: 1187 [2021-11-20 23:13:02,380 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:13:02,384 INFO L933 BasicCegarLoop]: 1414 mSDtfsCounter, 1587 mSDsluCounter, 1606 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1589 SdHoareTripleChecker+Valid, 2828 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:13:02,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1589 Valid, 2828 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-20 23:13:02,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1187 states. [2021-11-20 23:13:02,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1187 to 1187. [2021-11-20 23:13:02,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1187 states, 673 states have (on average 1.2392273402674592) internal successors, (834), 726 states have internal predecessors, (834), 382 states have call successors, (382), 103 states have call predecessors, (382), 102 states have return successors, (380), 380 states have call predecessors, (380), 380 states have call successors, (380) [2021-11-20 23:13:02,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1187 states to 1187 states and 1596 transitions. [2021-11-20 23:13:02,635 INFO L78 Accepts]: Start accepts. Automaton has 1187 states and 1596 transitions. Word has length 51 [2021-11-20 23:13:02,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:13:02,636 INFO L470 AbstractCegarLoop]: Abstraction has 1187 states and 1596 transitions. [2021-11-20 23:13:02,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-20 23:13:02,637 INFO L276 IsEmpty]: Start isEmpty. Operand 1187 states and 1596 transitions. [2021-11-20 23:13:02,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-20 23:13:02,640 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:02,640 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-11-20 23:13:02,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 23:13:02,641 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-20 23:13:02,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:02,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1879921070, now seen corresponding path program 1 times [2021-11-20 23:13:02,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:02,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007597572] [2021-11-20 23:13:02,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:02,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:02,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:02,954 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 23:13:02,955 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:02,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007597572] [2021-11-20 23:13:02,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007597572] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:02,955 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:13:02,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:13:02,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670736219] [2021-11-20 23:13:02,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:02,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:13:02,957 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:02,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:13:02,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:13:02,960 INFO L87 Difference]: Start difference. First operand 1187 states and 1596 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-20 23:13:04,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:13:04,934 INFO L93 Difference]: Finished difference Result 1187 states and 1596 transitions. [2021-11-20 23:13:04,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:13:04,942 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (12), 2 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 56 [2021-11-20 23:13:04,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:13:04,957 INFO L225 Difference]: With dead ends: 1187 [2021-11-20 23:13:04,957 INFO L226 Difference]: Without dead ends: 1185 [2021-11-20 23:13:04,958 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:13:04,959 INFO L933 BasicCegarLoop]: 1400 mSDtfsCounter, 1571 mSDsluCounter, 1591 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1573 SdHoareTripleChecker+Valid, 2800 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-20 23:13:04,960 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1573 Valid, 2800 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-20 23:13:04,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1185 states. [2021-11-20 23:13:05,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1185 to 1185. [2021-11-20 23:13:05,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1185 states, 672 states have (on average 1.2380952380952381) internal successors, (832), 724 states have internal predecessors, (832), 382 states have call successors, (382), 103 states have call predecessors, (382), 102 states have return successors, (380), 380 states have call predecessors, (380), 380 states have call successors, (380) [2021-11-20 23:13:05,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1185 states to 1185 states and 1594 transitions. [2021-11-20 23:13:05,074 INFO L78 Accepts]: Start accepts. Automaton has 1185 states and 1594 transitions. Word has length 56 [2021-11-20 23:13:05,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:13:05,075 INFO L470 AbstractCegarLoop]: Abstraction has 1185 states and 1594 transitions. [2021-11-20 23:13:05,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-20 23:13:05,075 INFO L276 IsEmpty]: Start isEmpty. Operand 1185 states and 1594 transitions. [2021-11-20 23:13:05,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-20 23:13:05,078 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:05,079 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-11-20 23:13:05,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 23:13:05,079 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-20 23:13:05,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:05,080 INFO L85 PathProgramCache]: Analyzing trace with hash 60161858, now seen corresponding path program 1 times [2021-11-20 23:13:05,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:05,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821681056] [2021-11-20 23:13:05,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:05,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:05,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:05,317 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 23:13:05,318 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:05,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821681056] [2021-11-20 23:13:05,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821681056] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:05,318 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:13:05,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:13:05,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650373120] [2021-11-20 23:13:05,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:05,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:13:05,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:05,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:13:05,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:13:05,321 INFO L87 Difference]: Start difference. First operand 1185 states and 1594 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-20 23:13:07,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:13:07,143 INFO L93 Difference]: Finished difference Result 1185 states and 1594 transitions. [2021-11-20 23:13:07,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:13:07,144 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (13), 2 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 61 [2021-11-20 23:13:07,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:13:07,154 INFO L225 Difference]: With dead ends: 1185 [2021-11-20 23:13:07,154 INFO L226 Difference]: Without dead ends: 1183 [2021-11-20 23:13:07,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:13:07,157 INFO L933 BasicCegarLoop]: 1398 mSDtfsCounter, 1568 mSDsluCounter, 1589 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1570 SdHoareTripleChecker+Valid, 2796 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:13:07,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1570 Valid, 2796 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-20 23:13:07,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2021-11-20 23:13:07,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 1183. [2021-11-20 23:13:07,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 671 states have (on average 1.2369597615499255) internal successors, (830), 722 states have internal predecessors, (830), 382 states have call successors, (382), 103 states have call predecessors, (382), 102 states have return successors, (380), 380 states have call predecessors, (380), 380 states have call successors, (380) [2021-11-20 23:13:07,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1592 transitions. [2021-11-20 23:13:07,255 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1592 transitions. Word has length 61 [2021-11-20 23:13:07,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:13:07,256 INFO L470 AbstractCegarLoop]: Abstraction has 1183 states and 1592 transitions. [2021-11-20 23:13:07,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-20 23:13:07,256 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1592 transitions. [2021-11-20 23:13:07,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-20 23:13:07,289 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:07,289 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-11-20 23:13:07,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 23:13:07,289 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-20 23:13:07,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:07,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1881780653, now seen corresponding path program 1 times [2021-11-20 23:13:07,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:07,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966153951] [2021-11-20 23:13:07,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:07,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:07,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:07,532 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 23:13:07,532 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:07,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966153951] [2021-11-20 23:13:07,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966153951] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:07,533 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:13:07,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:13:07,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926128353] [2021-11-20 23:13:07,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:07,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:13:07,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:07,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:13:07,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:13:07,535 INFO L87 Difference]: Start difference. First operand 1183 states and 1592 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-20 23:13:09,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:13:09,285 INFO L93 Difference]: Finished difference Result 1183 states and 1592 transitions. [2021-11-20 23:13:09,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:13:09,286 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (14), 2 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 66 [2021-11-20 23:13:09,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:13:09,296 INFO L225 Difference]: With dead ends: 1183 [2021-11-20 23:13:09,297 INFO L226 Difference]: Without dead ends: 1181 [2021-11-20 23:13:09,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:13:09,299 INFO L933 BasicCegarLoop]: 1396 mSDtfsCounter, 1565 mSDsluCounter, 1587 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1567 SdHoareTripleChecker+Valid, 2792 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-20 23:13:09,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1567 Valid, 2792 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-20 23:13:09,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1181 states. [2021-11-20 23:13:09,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1181 to 1181. [2021-11-20 23:13:09,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1181 states, 670 states have (on average 1.2358208955223882) internal successors, (828), 720 states have internal predecessors, (828), 382 states have call successors, (382), 103 states have call predecessors, (382), 102 states have return successors, (380), 380 states have call predecessors, (380), 380 states have call successors, (380) [2021-11-20 23:13:09,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1181 states to 1181 states and 1590 transitions. [2021-11-20 23:13:09,374 INFO L78 Accepts]: Start accepts. Automaton has 1181 states and 1590 transitions. Word has length 66 [2021-11-20 23:13:09,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:13:09,375 INFO L470 AbstractCegarLoop]: Abstraction has 1181 states and 1590 transitions. [2021-11-20 23:13:09,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-20 23:13:09,375 INFO L276 IsEmpty]: Start isEmpty. Operand 1181 states and 1590 transitions. [2021-11-20 23:13:09,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-20 23:13:09,377 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:09,378 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-11-20 23:13:09,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 23:13:09,378 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-20 23:13:09,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:09,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1437081076, now seen corresponding path program 1 times [2021-11-20 23:13:09,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:09,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885103505] [2021-11-20 23:13:09,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:09,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:09,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:09,531 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 23:13:09,532 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:09,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885103505] [2021-11-20 23:13:09,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885103505] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:09,532 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:13:09,532 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:13:09,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577315381] [2021-11-20 23:13:09,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:09,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:13:09,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:09,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:13:09,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:13:09,534 INFO L87 Difference]: Start difference. First operand 1181 states and 1590 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-20 23:13:11,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:13:11,219 INFO L93 Difference]: Finished difference Result 1181 states and 1590 transitions. [2021-11-20 23:13:11,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:13:11,219 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (15), 2 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 71 [2021-11-20 23:13:11,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:13:11,228 INFO L225 Difference]: With dead ends: 1181 [2021-11-20 23:13:11,228 INFO L226 Difference]: Without dead ends: 1179 [2021-11-20 23:13:11,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:13:11,230 INFO L933 BasicCegarLoop]: 1394 mSDtfsCounter, 1562 mSDsluCounter, 1585 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1564 SdHoareTripleChecker+Valid, 2788 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-20 23:13:11,230 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1564 Valid, 2788 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-20 23:13:11,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1179 states. [2021-11-20 23:13:11,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1179 to 1179. [2021-11-20 23:13:11,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1179 states, 669 states have (on average 1.234678624813154) internal successors, (826), 718 states have internal predecessors, (826), 382 states have call successors, (382), 103 states have call predecessors, (382), 102 states have return successors, (380), 380 states have call predecessors, (380), 380 states have call successors, (380) [2021-11-20 23:13:11,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1179 states to 1179 states and 1588 transitions. [2021-11-20 23:13:11,318 INFO L78 Accepts]: Start accepts. Automaton has 1179 states and 1588 transitions. Word has length 71 [2021-11-20 23:13:11,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:13:11,319 INFO L470 AbstractCegarLoop]: Abstraction has 1179 states and 1588 transitions. [2021-11-20 23:13:11,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-20 23:13:11,320 INFO L276 IsEmpty]: Start isEmpty. Operand 1179 states and 1588 transitions. [2021-11-20 23:13:11,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-20 23:13:11,322 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:11,322 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-11-20 23:13:11,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 23:13:11,324 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-20 23:13:11,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:11,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1585240408, now seen corresponding path program 1 times [2021-11-20 23:13:11,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:11,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450207070] [2021-11-20 23:13:11,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:11,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:11,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:11,525 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 23:13:11,525 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:11,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450207070] [2021-11-20 23:13:11,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450207070] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:11,526 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:13:11,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:13:11,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928050986] [2021-11-20 23:13:11,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:11,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:13:11,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:11,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:13:11,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:13:11,528 INFO L87 Difference]: Start difference. First operand 1179 states and 1588 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-20 23:13:13,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:13:13,631 INFO L93 Difference]: Finished difference Result 1179 states and 1588 transitions. [2021-11-20 23:13:13,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:13:13,632 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (16), 2 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 76 [2021-11-20 23:13:13,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:13:13,641 INFO L225 Difference]: With dead ends: 1179 [2021-11-20 23:13:13,641 INFO L226 Difference]: Without dead ends: 1177 [2021-11-20 23:13:13,642 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:13:13,643 INFO L933 BasicCegarLoop]: 1392 mSDtfsCounter, 1559 mSDsluCounter, 1583 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1561 SdHoareTripleChecker+Valid, 2784 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:13:13,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1561 Valid, 2784 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-20 23:13:13,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1177 states. [2021-11-20 23:13:13,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1177 to 1177. [2021-11-20 23:13:13,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1177 states, 668 states have (on average 1.2335329341317365) internal successors, (824), 716 states have internal predecessors, (824), 382 states have call successors, (382), 103 states have call predecessors, (382), 102 states have return successors, (380), 380 states have call predecessors, (380), 380 states have call successors, (380) [2021-11-20 23:13:13,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1177 states to 1177 states and 1586 transitions. [2021-11-20 23:13:13,717 INFO L78 Accepts]: Start accepts. Automaton has 1177 states and 1586 transitions. Word has length 76 [2021-11-20 23:13:13,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:13:13,717 INFO L470 AbstractCegarLoop]: Abstraction has 1177 states and 1586 transitions. [2021-11-20 23:13:13,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-20 23:13:13,718 INFO L276 IsEmpty]: Start isEmpty. Operand 1177 states and 1586 transitions. [2021-11-20 23:13:13,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-20 23:13:13,720 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:13,720 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-11-20 23:13:13,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 23:13:13,720 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-20 23:13:13,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:13,721 INFO L85 PathProgramCache]: Analyzing trace with hash -327893691, now seen corresponding path program 1 times [2021-11-20 23:13:13,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:13,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056328299] [2021-11-20 23:13:13,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:13,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:13,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:13,867 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 23:13:13,868 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:13,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056328299] [2021-11-20 23:13:13,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056328299] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:13,868 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:13:13,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:13:13,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527105587] [2021-11-20 23:13:13,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:13,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:13:13,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:13,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:13:13,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:13:13,870 INFO L87 Difference]: Start difference. First operand 1177 states and 1586 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-20 23:13:16,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:13:16,710 INFO L93 Difference]: Finished difference Result 2038 states and 2707 transitions. [2021-11-20 23:13:16,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:13:16,711 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (17), 2 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 81 [2021-11-20 23:13:16,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:13:16,729 INFO L225 Difference]: With dead ends: 2038 [2021-11-20 23:13:16,729 INFO L226 Difference]: Without dead ends: 2036 [2021-11-20 23:13:16,731 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:13:16,732 INFO L933 BasicCegarLoop]: 1687 mSDtfsCounter, 1331 mSDsluCounter, 3220 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1333 SdHoareTripleChecker+Valid, 4549 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:13:16,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1333 Valid, 4549 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-11-20 23:13:16,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2036 states. [2021-11-20 23:13:16,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2036 to 1905. [2021-11-20 23:13:16,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1905 states, 1089 states have (on average 1.2249770431588614) internal successors, (1334), 1155 states have internal predecessors, (1334), 619 states have call successors, (619), 174 states have call predecessors, (619), 172 states have return successors, (618), 614 states have call predecessors, (618), 617 states have call successors, (618) [2021-11-20 23:13:16,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1905 states to 1905 states and 2571 transitions. [2021-11-20 23:13:16,872 INFO L78 Accepts]: Start accepts. Automaton has 1905 states and 2571 transitions. Word has length 81 [2021-11-20 23:13:16,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:13:16,872 INFO L470 AbstractCegarLoop]: Abstraction has 1905 states and 2571 transitions. [2021-11-20 23:13:16,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-20 23:13:16,873 INFO L276 IsEmpty]: Start isEmpty. Operand 1905 states and 2571 transitions. [2021-11-20 23:13:16,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-20 23:13:16,875 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:16,875 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-11-20 23:13:16,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 23:13:16,875 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-20 23:13:16,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:16,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1904266524, now seen corresponding path program 1 times [2021-11-20 23:13:16,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:16,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597703299] [2021-11-20 23:13:16,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:16,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:16,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:17,024 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 23:13:17,025 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:17,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597703299] [2021-11-20 23:13:17,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597703299] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:17,025 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:13:17,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:13:17,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232567199] [2021-11-20 23:13:17,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:17,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:13:17,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:17,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:13:17,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:13:17,027 INFO L87 Difference]: Start difference. First operand 1905 states and 2571 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-20 23:13:18,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:13:18,853 INFO L93 Difference]: Finished difference Result 1905 states and 2571 transitions. [2021-11-20 23:13:18,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:13:18,865 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 2 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 86 [2021-11-20 23:13:18,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:13:18,879 INFO L225 Difference]: With dead ends: 1905 [2021-11-20 23:13:18,879 INFO L226 Difference]: Without dead ends: 1903 [2021-11-20 23:13:18,881 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:13:18,881 INFO L933 BasicCegarLoop]: 1390 mSDtfsCounter, 1559 mSDsluCounter, 1577 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1561 SdHoareTripleChecker+Valid, 2776 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:13:18,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1561 Valid, 2776 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-20 23:13:18,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1903 states. [2021-11-20 23:13:18,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1903 to 1903. [2021-11-20 23:13:18,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1903 states, 1088 states have (on average 1.224264705882353) internal successors, (1332), 1153 states have internal predecessors, (1332), 619 states have call successors, (619), 174 states have call predecessors, (619), 172 states have return successors, (618), 614 states have call predecessors, (618), 617 states have call successors, (618) [2021-11-20 23:13:19,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1903 states to 1903 states and 2569 transitions. [2021-11-20 23:13:19,008 INFO L78 Accepts]: Start accepts. Automaton has 1903 states and 2569 transitions. Word has length 86 [2021-11-20 23:13:19,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:13:19,009 INFO L470 AbstractCegarLoop]: Abstraction has 1903 states and 2569 transitions. [2021-11-20 23:13:19,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-20 23:13:19,010 INFO L276 IsEmpty]: Start isEmpty. Operand 1903 states and 2569 transitions. [2021-11-20 23:13:19,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-20 23:13:19,011 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:19,012 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-11-20 23:13:19,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-20 23:13:19,012 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-20 23:13:19,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:19,013 INFO L85 PathProgramCache]: Analyzing trace with hash 344199423, now seen corresponding path program 1 times [2021-11-20 23:13:19,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:19,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704285081] [2021-11-20 23:13:19,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:19,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:19,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:19,155 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 23:13:19,156 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:19,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704285081] [2021-11-20 23:13:19,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704285081] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:19,156 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:13:19,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:13:19,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394639411] [2021-11-20 23:13:19,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:19,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:13:19,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:19,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:13:19,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:13:19,158 INFO L87 Difference]: Start difference. First operand 1903 states and 2569 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-20 23:13:20,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:13:20,945 INFO L93 Difference]: Finished difference Result 1903 states and 2569 transitions. [2021-11-20 23:13:20,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:13:20,956 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (18), 2 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 88 [2021-11-20 23:13:20,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:13:20,970 INFO L225 Difference]: With dead ends: 1903 [2021-11-20 23:13:20,970 INFO L226 Difference]: Without dead ends: 1901 [2021-11-20 23:13:20,972 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:13:20,973 INFO L933 BasicCegarLoop]: 1388 mSDtfsCounter, 1551 mSDsluCounter, 1579 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1553 SdHoareTripleChecker+Valid, 2776 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:13:20,973 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1553 Valid, 2776 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-20 23:13:20,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1901 states. [2021-11-20 23:13:21,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1901 to 1901. [2021-11-20 23:13:21,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1901 states, 1087 states have (on average 1.2235510579576816) internal successors, (1330), 1151 states have internal predecessors, (1330), 619 states have call successors, (619), 174 states have call predecessors, (619), 172 states have return successors, (618), 614 states have call predecessors, (618), 617 states have call successors, (618) [2021-11-20 23:13:21,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1901 states to 1901 states and 2567 transitions. [2021-11-20 23:13:21,108 INFO L78 Accepts]: Start accepts. Automaton has 1901 states and 2567 transitions. Word has length 88 [2021-11-20 23:13:21,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:13:21,109 INFO L470 AbstractCegarLoop]: Abstraction has 1901 states and 2567 transitions. [2021-11-20 23:13:21,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-20 23:13:21,110 INFO L276 IsEmpty]: Start isEmpty. Operand 1901 states and 2567 transitions. [2021-11-20 23:13:21,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-20 23:13:21,111 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:21,112 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-11-20 23:13:21,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-20 23:13:21,112 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-20 23:13:21,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:21,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1058544828, now seen corresponding path program 1 times [2021-11-20 23:13:21,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:21,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619997491] [2021-11-20 23:13:21,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:21,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:21,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:21,252 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 23:13:21,253 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:21,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619997491] [2021-11-20 23:13:21,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619997491] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:21,253 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:13:21,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:13:21,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597349477] [2021-11-20 23:13:21,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:21,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:13:21,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:21,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:13:21,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:13:21,255 INFO L87 Difference]: Start difference. First operand 1901 states and 2567 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-20 23:13:23,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:13:23,678 INFO L93 Difference]: Finished difference Result 1901 states and 2567 transitions. [2021-11-20 23:13:23,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:13:23,695 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (19), 2 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 93 [2021-11-20 23:13:23,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:13:23,711 INFO L225 Difference]: With dead ends: 1901 [2021-11-20 23:13:23,711 INFO L226 Difference]: Without dead ends: 1899 [2021-11-20 23:13:23,713 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:13:23,713 INFO L933 BasicCegarLoop]: 1386 mSDtfsCounter, 1550 mSDsluCounter, 1577 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1552 SdHoareTripleChecker+Valid, 2772 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:13:23,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1552 Valid, 2772 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-11-20 23:13:23,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1899 states. [2021-11-20 23:13:23,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1899 to 1899. [2021-11-20 23:13:23,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1899 states, 1086 states have (on average 1.2228360957642725) internal successors, (1328), 1149 states have internal predecessors, (1328), 619 states have call successors, (619), 174 states have call predecessors, (619), 172 states have return successors, (618), 614 states have call predecessors, (618), 617 states have call successors, (618) [2021-11-20 23:13:23,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1899 states to 1899 states and 2565 transitions. [2021-11-20 23:13:23,911 INFO L78 Accepts]: Start accepts. Automaton has 1899 states and 2565 transitions. Word has length 93 [2021-11-20 23:13:23,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:13:23,911 INFO L470 AbstractCegarLoop]: Abstraction has 1899 states and 2565 transitions. [2021-11-20 23:13:23,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-20 23:13:23,912 INFO L276 IsEmpty]: Start isEmpty. Operand 1899 states and 2565 transitions. [2021-11-20 23:13:23,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-20 23:13:23,914 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:23,915 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-11-20 23:13:23,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-20 23:13:23,915 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-20 23:13:23,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:23,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1848977746, now seen corresponding path program 1 times [2021-11-20 23:13:23,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:23,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482943852] [2021-11-20 23:13:23,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:23,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:24,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:24,232 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2021-11-20 23:13:24,232 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:24,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482943852] [2021-11-20 23:13:24,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482943852] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:24,232 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:13:24,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 23:13:24,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116831779] [2021-11-20 23:13:24,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:24,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 23:13:24,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:24,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 23:13:24,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 23:13:24,234 INFO L87 Difference]: Start difference. First operand 1899 states and 2565 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-20 23:13:29,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:13:29,533 INFO L93 Difference]: Finished difference Result 1899 states and 2565 transitions. [2021-11-20 23:13:29,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 23:13:29,534 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 127 [2021-11-20 23:13:29,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:13:29,545 INFO L225 Difference]: With dead ends: 1899 [2021-11-20 23:13:29,545 INFO L226 Difference]: Without dead ends: 1897 [2021-11-20 23:13:29,547 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-20 23:13:29,548 INFO L933 BasicCegarLoop]: 1385 mSDtfsCounter, 1541 mSDsluCounter, 3960 mSDsCounter, 0 mSdLazyCounter, 1530 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1547 SdHoareTripleChecker+Valid, 4777 SdHoareTripleChecker+Invalid, 1531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:13:29,548 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1547 Valid, 4777 Invalid, 1531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1530 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2021-11-20 23:13:29,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1897 states. [2021-11-20 23:13:29,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1897 to 1897. [2021-11-20 23:13:29,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1897 states, 1085 states have (on average 1.2211981566820276) internal successors, (1325), 1147 states have internal predecessors, (1325), 619 states have call successors, (619), 174 states have call predecessors, (619), 172 states have return successors, (618), 614 states have call predecessors, (618), 617 states have call successors, (618) [2021-11-20 23:13:29,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1897 states to 1897 states and 2562 transitions. [2021-11-20 23:13:29,729 INFO L78 Accepts]: Start accepts. Automaton has 1897 states and 2562 transitions. Word has length 127 [2021-11-20 23:13:29,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:13:29,730 INFO L470 AbstractCegarLoop]: Abstraction has 1897 states and 2562 transitions. [2021-11-20 23:13:29,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-20 23:13:29,730 INFO L276 IsEmpty]: Start isEmpty. Operand 1897 states and 2562 transitions. [2021-11-20 23:13:29,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-20 23:13:29,732 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:29,732 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-11-20 23:13:29,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-20 23:13:29,733 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-20 23:13:29,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:29,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1185655012, now seen corresponding path program 1 times [2021-11-20 23:13:29,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:29,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896619525] [2021-11-20 23:13:29,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:29,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:29,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:29,886 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 23:13:29,887 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:29,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896619525] [2021-11-20 23:13:29,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896619525] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:29,887 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:13:29,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:13:29,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860353947] [2021-11-20 23:13:29,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:29,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:13:29,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:29,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:13:29,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:13:29,889 INFO L87 Difference]: Start difference. First operand 1897 states and 2562 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-20 23:13:31,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:13:31,930 INFO L93 Difference]: Finished difference Result 1897 states and 2562 transitions. [2021-11-20 23:13:31,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:13:31,940 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (20), 2 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 98 [2021-11-20 23:13:31,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:13:31,951 INFO L225 Difference]: With dead ends: 1897 [2021-11-20 23:13:31,951 INFO L226 Difference]: Without dead ends: 1895 [2021-11-20 23:13:31,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:13:31,953 INFO L933 BasicCegarLoop]: 1382 mSDtfsCounter, 1545 mSDsluCounter, 1573 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1547 SdHoareTripleChecker+Valid, 2764 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-20 23:13:31,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1547 Valid, 2764 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-20 23:13:31,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1895 states. [2021-11-20 23:13:32,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1895 to 1895. [2021-11-20 23:13:32,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1895 states, 1084 states have (on average 1.220479704797048) internal successors, (1323), 1145 states have internal predecessors, (1323), 619 states have call successors, (619), 174 states have call predecessors, (619), 172 states have return successors, (618), 614 states have call predecessors, (618), 617 states have call successors, (618) [2021-11-20 23:13:32,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1895 states to 1895 states and 2560 transitions. [2021-11-20 23:13:32,101 INFO L78 Accepts]: Start accepts. Automaton has 1895 states and 2560 transitions. Word has length 98 [2021-11-20 23:13:32,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:13:32,102 INFO L470 AbstractCegarLoop]: Abstraction has 1895 states and 2560 transitions. [2021-11-20 23:13:32,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-20 23:13:32,102 INFO L276 IsEmpty]: Start isEmpty. Operand 1895 states and 2560 transitions. [2021-11-20 23:13:32,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-20 23:13:32,105 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:32,105 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:13:32,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-20 23:13:32,105 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-20 23:13:32,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:32,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1834234500, now seen corresponding path program 1 times [2021-11-20 23:13:32,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:32,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282332023] [2021-11-20 23:13:32,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:32,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:32,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:32,316 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2021-11-20 23:13:32,316 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:32,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282332023] [2021-11-20 23:13:32,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282332023] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:32,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:13:32,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 23:13:32,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334609378] [2021-11-20 23:13:32,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:32,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 23:13:32,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:32,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 23:13:32,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:13:32,319 INFO L87 Difference]: Start difference. First operand 1895 states and 2560 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-20 23:13:35,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:13:35,576 INFO L93 Difference]: Finished difference Result 2551 states and 3436 transitions. [2021-11-20 23:13:35,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 23:13:35,586 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 124 [2021-11-20 23:13:35,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:13:35,605 INFO L225 Difference]: With dead ends: 2551 [2021-11-20 23:13:35,606 INFO L226 Difference]: Without dead ends: 2549 [2021-11-20 23:13:35,607 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-20 23:13:35,610 INFO L933 BasicCegarLoop]: 1571 mSDtfsCounter, 1318 mSDsluCounter, 4301 mSDsCounter, 0 mSdLazyCounter, 737 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1320 SdHoareTripleChecker+Valid, 5362 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:13:35,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1320 Valid, 5362 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 737 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2021-11-20 23:13:35,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2549 states. [2021-11-20 23:13:35,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2549 to 2518. [2021-11-20 23:13:35,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2518 states, 1428 states have (on average 1.2177871148459383) internal successors, (1739), 1527 states have internal predecessors, (1739), 834 states have call successors, (834), 244 states have call predecessors, (834), 236 states have return successors, (841), 801 states have call predecessors, (841), 832 states have call successors, (841) [2021-11-20 23:13:35,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2518 states to 2518 states and 3414 transitions. [2021-11-20 23:13:35,826 INFO L78 Accepts]: Start accepts. Automaton has 2518 states and 3414 transitions. Word has length 124 [2021-11-20 23:13:35,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:13:35,827 INFO L470 AbstractCegarLoop]: Abstraction has 2518 states and 3414 transitions. [2021-11-20 23:13:35,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-20 23:13:35,827 INFO L276 IsEmpty]: Start isEmpty. Operand 2518 states and 3414 transitions. [2021-11-20 23:13:35,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-20 23:13:35,830 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:35,830 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-11-20 23:13:35,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-20 23:13:35,831 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-20 23:13:35,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:35,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1454486862, now seen corresponding path program 1 times [2021-11-20 23:13:35,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:35,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291968285] [2021-11-20 23:13:35,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:35,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:35,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:36,011 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2021-11-20 23:13:36,012 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:36,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291968285] [2021-11-20 23:13:36,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291968285] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:36,012 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:13:36,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:13:36,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704166341] [2021-11-20 23:13:36,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:36,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:13:36,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:36,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:13:36,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:13:36,014 INFO L87 Difference]: Start difference. First operand 2518 states and 3414 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-20 23:13:37,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:13:37,205 INFO L93 Difference]: Finished difference Result 4997 states and 6800 transitions. [2021-11-20 23:13:37,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:13:37,216 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 133 [2021-11-20 23:13:37,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:13:37,236 INFO L225 Difference]: With dead ends: 4997 [2021-11-20 23:13:37,236 INFO L226 Difference]: Without dead ends: 2512 [2021-11-20 23:13:37,248 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:13:37,249 INFO L933 BasicCegarLoop]: 1378 mSDtfsCounter, 1538 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1538 SdHoareTripleChecker+Valid, 1378 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:13:37,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1538 Valid, 1378 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-20 23:13:37,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2512 states. [2021-11-20 23:13:37,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2512 to 2512. [2021-11-20 23:13:37,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2512 states, 1423 states have (on average 1.2157413914265636) internal successors, (1730), 1521 states have internal predecessors, (1730), 834 states have call successors, (834), 244 states have call predecessors, (834), 236 states have return successors, (841), 801 states have call predecessors, (841), 832 states have call successors, (841) [2021-11-20 23:13:37,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2512 states to 2512 states and 3405 transitions. [2021-11-20 23:13:37,527 INFO L78 Accepts]: Start accepts. Automaton has 2512 states and 3405 transitions. Word has length 133 [2021-11-20 23:13:37,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:13:37,529 INFO L470 AbstractCegarLoop]: Abstraction has 2512 states and 3405 transitions. [2021-11-20 23:13:37,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-20 23:13:37,529 INFO L276 IsEmpty]: Start isEmpty. Operand 2512 states and 3405 transitions. [2021-11-20 23:13:37,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-20 23:13:37,532 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:37,532 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-11-20 23:13:37,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-20 23:13:37,533 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-20 23:13:37,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:37,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1524060711, now seen corresponding path program 1 times [2021-11-20 23:13:37,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:37,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478125525] [2021-11-20 23:13:37,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:37,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:37,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:37,683 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 23:13:37,683 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:37,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478125525] [2021-11-20 23:13:37,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478125525] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:37,683 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:13:37,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:13:37,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577270877] [2021-11-20 23:13:37,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:37,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:13:37,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:37,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:13:37,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:13:37,686 INFO L87 Difference]: Start difference. First operand 2512 states and 3405 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-20 23:13:39,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:13:39,525 INFO L93 Difference]: Finished difference Result 2512 states and 3405 transitions. [2021-11-20 23:13:39,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:13:39,534 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (21), 2 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 103 [2021-11-20 23:13:39,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:13:39,552 INFO L225 Difference]: With dead ends: 2512 [2021-11-20 23:13:39,552 INFO L226 Difference]: Without dead ends: 2510 [2021-11-20 23:13:39,554 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:13:39,555 INFO L933 BasicCegarLoop]: 1375 mSDtfsCounter, 1537 mSDsluCounter, 1566 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1539 SdHoareTripleChecker+Valid, 2750 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:13:39,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1539 Valid, 2750 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-20 23:13:39,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2510 states. [2021-11-20 23:13:39,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2510 to 2510. [2021-11-20 23:13:39,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2510 states, 1422 states have (on average 1.2144866385372715) internal successors, (1727), 1519 states have internal predecessors, (1727), 834 states have call successors, (834), 244 states have call predecessors, (834), 236 states have return successors, (841), 801 states have call predecessors, (841), 832 states have call successors, (841) [2021-11-20 23:13:39,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2510 states to 2510 states and 3402 transitions. [2021-11-20 23:13:39,763 INFO L78 Accepts]: Start accepts. Automaton has 2510 states and 3402 transitions. Word has length 103 [2021-11-20 23:13:39,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:13:39,764 INFO L470 AbstractCegarLoop]: Abstraction has 2510 states and 3402 transitions. [2021-11-20 23:13:39,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-20 23:13:39,764 INFO L276 IsEmpty]: Start isEmpty. Operand 2510 states and 3402 transitions. [2021-11-20 23:13:39,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-20 23:13:39,767 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:39,767 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-11-20 23:13:39,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-20 23:13:39,768 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-20 23:13:39,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:39,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1240660311, now seen corresponding path program 1 times [2021-11-20 23:13:39,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:39,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529477155] [2021-11-20 23:13:39,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:39,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:39,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:39,927 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 23:13:39,927 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:39,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529477155] [2021-11-20 23:13:39,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529477155] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:39,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:13:39,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:13:39,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659279573] [2021-11-20 23:13:39,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:39,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:13:39,931 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:39,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:13:39,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:13:39,931 INFO L87 Difference]: Start difference. First operand 2510 states and 3402 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-20 23:13:41,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:13:41,810 INFO L93 Difference]: Finished difference Result 2510 states and 3402 transitions. [2021-11-20 23:13:41,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:13:41,819 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (22), 2 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 108 [2021-11-20 23:13:41,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:13:41,832 INFO L225 Difference]: With dead ends: 2510 [2021-11-20 23:13:41,832 INFO L226 Difference]: Without dead ends: 2508 [2021-11-20 23:13:41,834 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:13:41,835 INFO L933 BasicCegarLoop]: 1373 mSDtfsCounter, 1534 mSDsluCounter, 1564 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1536 SdHoareTripleChecker+Valid, 2746 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:13:41,835 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1536 Valid, 2746 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-20 23:13:41,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2508 states. [2021-11-20 23:13:42,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2508 to 2508. [2021-11-20 23:13:42,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2508 states, 1421 states have (on average 1.2132301196340605) internal successors, (1724), 1517 states have internal predecessors, (1724), 834 states have call successors, (834), 244 states have call predecessors, (834), 236 states have return successors, (841), 801 states have call predecessors, (841), 832 states have call successors, (841) [2021-11-20 23:13:42,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2508 states to 2508 states and 3399 transitions. [2021-11-20 23:13:42,019 INFO L78 Accepts]: Start accepts. Automaton has 2508 states and 3399 transitions. Word has length 108 [2021-11-20 23:13:42,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:13:42,020 INFO L470 AbstractCegarLoop]: Abstraction has 2508 states and 3399 transitions. [2021-11-20 23:13:42,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-20 23:13:42,021 INFO L276 IsEmpty]: Start isEmpty. Operand 2508 states and 3399 transitions. [2021-11-20 23:13:42,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-20 23:13:42,023 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:42,023 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-11-20 23:13:42,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-20 23:13:42,024 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-20 23:13:42,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:42,024 INFO L85 PathProgramCache]: Analyzing trace with hash -755663257, now seen corresponding path program 1 times [2021-11-20 23:13:42,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:42,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290276299] [2021-11-20 23:13:42,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:42,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:42,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:42,158 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 23:13:42,158 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:42,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290276299] [2021-11-20 23:13:42,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290276299] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:42,158 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:13:42,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:13:42,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743693055] [2021-11-20 23:13:42,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:42,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:13:42,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:42,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:13:42,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:13:42,160 INFO L87 Difference]: Start difference. First operand 2508 states and 3399 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 23:13:44,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:13:44,073 INFO L93 Difference]: Finished difference Result 2508 states and 3399 transitions. [2021-11-20 23:13:44,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:13:44,082 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (23), 2 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 113 [2021-11-20 23:13:44,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:13:44,090 INFO L225 Difference]: With dead ends: 2508 [2021-11-20 23:13:44,090 INFO L226 Difference]: Without dead ends: 2506 [2021-11-20 23:13:44,091 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:13:44,092 INFO L933 BasicCegarLoop]: 1371 mSDtfsCounter, 1531 mSDsluCounter, 1562 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1533 SdHoareTripleChecker+Valid, 2742 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:13:44,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1533 Valid, 2742 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-20 23:13:44,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2506 states. [2021-11-20 23:13:44,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2506 to 2506. [2021-11-20 23:13:44,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2506 states, 1420 states have (on average 1.2119718309859155) internal successors, (1721), 1515 states have internal predecessors, (1721), 834 states have call successors, (834), 244 states have call predecessors, (834), 236 states have return successors, (841), 801 states have call predecessors, (841), 832 states have call successors, (841) [2021-11-20 23:13:44,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2506 states to 2506 states and 3396 transitions. [2021-11-20 23:13:44,276 INFO L78 Accepts]: Start accepts. Automaton has 2506 states and 3396 transitions. Word has length 113 [2021-11-20 23:13:44,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:13:44,276 INFO L470 AbstractCegarLoop]: Abstraction has 2506 states and 3396 transitions. [2021-11-20 23:13:44,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 23:13:44,277 INFO L276 IsEmpty]: Start isEmpty. Operand 2506 states and 3396 transitions. [2021-11-20 23:13:44,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-20 23:13:44,280 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:44,280 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-11-20 23:13:44,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-20 23:13:44,280 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-20 23:13:44,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:44,281 INFO L85 PathProgramCache]: Analyzing trace with hash -905755268, now seen corresponding path program 1 times [2021-11-20 23:13:44,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:44,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995178724] [2021-11-20 23:13:44,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:44,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:44,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:44,423 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 23:13:44,423 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:44,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995178724] [2021-11-20 23:13:44,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995178724] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:44,424 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:13:44,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:13:44,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289364502] [2021-11-20 23:13:44,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:44,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:13:44,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:44,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:13:44,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:13:44,427 INFO L87 Difference]: Start difference. First operand 2506 states and 3396 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-20 23:13:46,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:13:46,733 INFO L93 Difference]: Finished difference Result 2506 states and 3396 transitions. [2021-11-20 23:13:46,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:13:46,741 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (24), 2 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 118 [2021-11-20 23:13:46,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:13:46,751 INFO L225 Difference]: With dead ends: 2506 [2021-11-20 23:13:46,751 INFO L226 Difference]: Without dead ends: 2504 [2021-11-20 23:13:46,752 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:13:46,753 INFO L933 BasicCegarLoop]: 1369 mSDtfsCounter, 1528 mSDsluCounter, 1560 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1530 SdHoareTripleChecker+Valid, 2738 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:13:46,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1530 Valid, 2738 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-20 23:13:46,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2504 states. [2021-11-20 23:13:46,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2504 to 2504. [2021-11-20 23:13:46,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2504 states, 1419 states have (on average 1.2107117688513038) internal successors, (1718), 1513 states have internal predecessors, (1718), 834 states have call successors, (834), 244 states have call predecessors, (834), 236 states have return successors, (841), 801 states have call predecessors, (841), 832 states have call successors, (841) [2021-11-20 23:13:47,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2504 states to 2504 states and 3393 transitions. [2021-11-20 23:13:47,009 INFO L78 Accepts]: Start accepts. Automaton has 2504 states and 3393 transitions. Word has length 118 [2021-11-20 23:13:47,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:13:47,010 INFO L470 AbstractCegarLoop]: Abstraction has 2504 states and 3393 transitions. [2021-11-20 23:13:47,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-20 23:13:47,010 INFO L276 IsEmpty]: Start isEmpty. Operand 2504 states and 3393 transitions. [2021-11-20 23:13:47,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-20 23:13:47,013 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:47,014 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-11-20 23:13:47,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-20 23:13:47,014 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-20 23:13:47,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:47,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1233363542, now seen corresponding path program 1 times [2021-11-20 23:13:47,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:47,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093905622] [2021-11-20 23:13:47,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:47,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:47,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:47,171 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 23:13:47,172 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:47,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093905622] [2021-11-20 23:13:47,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093905622] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:47,172 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:13:47,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:13:47,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647632240] [2021-11-20 23:13:47,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:47,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:13:47,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:47,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:13:47,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:13:47,175 INFO L87 Difference]: Start difference. First operand 2504 states and 3393 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-20 23:13:49,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:13:49,274 INFO L93 Difference]: Finished difference Result 2504 states and 3393 transitions. [2021-11-20 23:13:49,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:13:49,288 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (25), 2 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 123 [2021-11-20 23:13:49,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:13:49,297 INFO L225 Difference]: With dead ends: 2504 [2021-11-20 23:13:49,297 INFO L226 Difference]: Without dead ends: 2502 [2021-11-20 23:13:49,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:13:49,300 INFO L933 BasicCegarLoop]: 1367 mSDtfsCounter, 1525 mSDsluCounter, 1558 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1527 SdHoareTripleChecker+Valid, 2734 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-20 23:13:49,300 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1527 Valid, 2734 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-20 23:13:49,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2502 states. [2021-11-20 23:13:49,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2502 to 2502. [2021-11-20 23:13:49,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2502 states, 1418 states have (on average 1.2094499294781382) internal successors, (1715), 1511 states have internal predecessors, (1715), 834 states have call successors, (834), 244 states have call predecessors, (834), 236 states have return successors, (841), 801 states have call predecessors, (841), 832 states have call successors, (841) [2021-11-20 23:13:49,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2502 states to 2502 states and 3390 transitions. [2021-11-20 23:13:49,599 INFO L78 Accepts]: Start accepts. Automaton has 2502 states and 3390 transitions. Word has length 123 [2021-11-20 23:13:49,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:13:49,600 INFO L470 AbstractCegarLoop]: Abstraction has 2502 states and 3390 transitions. [2021-11-20 23:13:49,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-20 23:13:49,600 INFO L276 IsEmpty]: Start isEmpty. Operand 2502 states and 3390 transitions. [2021-11-20 23:13:49,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-11-20 23:13:49,603 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:49,604 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-11-20 23:13:49,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-20 23:13:49,604 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-20 23:13:49,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:49,605 INFO L85 PathProgramCache]: Analyzing trace with hash 493656812, now seen corresponding path program 1 times [2021-11-20 23:13:49,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:49,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060207449] [2021-11-20 23:13:49,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:49,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:49,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:49,744 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2021-11-20 23:13:49,745 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:49,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060207449] [2021-11-20 23:13:49,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060207449] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:49,745 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:13:49,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:13:49,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413627986] [2021-11-20 23:13:49,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:49,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:13:49,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:49,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:13:49,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:13:49,747 INFO L87 Difference]: Start difference. First operand 2502 states and 3390 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 23:13:50,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:13:50,964 INFO L93 Difference]: Finished difference Result 4526 states and 6113 transitions. [2021-11-20 23:13:50,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:13:50,973 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (22), 1 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 156 [2021-11-20 23:13:50,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:13:50,980 INFO L225 Difference]: With dead ends: 4526 [2021-11-20 23:13:50,980 INFO L226 Difference]: Without dead ends: 2496 [2021-11-20 23:13:50,989 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:13:50,990 INFO L933 BasicCegarLoop]: 1363 mSDtfsCounter, 1547 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1547 SdHoareTripleChecker+Valid, 1363 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:13:50,990 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1547 Valid, 1363 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-20 23:13:50,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2021-11-20 23:13:51,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2496. [2021-11-20 23:13:51,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2496 states, 1413 states have (on average 1.2073602264685068) internal successors, (1706), 1505 states have internal predecessors, (1706), 834 states have call successors, (834), 244 states have call predecessors, (834), 236 states have return successors, (841), 801 states have call predecessors, (841), 832 states have call successors, (841) [2021-11-20 23:13:51,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 3381 transitions. [2021-11-20 23:13:51,237 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 3381 transitions. Word has length 156 [2021-11-20 23:13:51,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:13:51,238 INFO L470 AbstractCegarLoop]: Abstraction has 2496 states and 3381 transitions. [2021-11-20 23:13:51,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 23:13:51,238 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 3381 transitions. [2021-11-20 23:13:51,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-20 23:13:51,242 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:51,242 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-11-20 23:13:51,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-20 23:13:51,243 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-20 23:13:51,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:51,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1688188224, now seen corresponding path program 1 times [2021-11-20 23:13:51,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:51,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316804441] [2021-11-20 23:13:51,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:51,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:51,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:51,408 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 23:13:51,408 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:51,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316804441] [2021-11-20 23:13:51,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316804441] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:51,409 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:13:51,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:13:51,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818526339] [2021-11-20 23:13:51,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:51,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:13:51,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:51,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:13:51,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:13:51,412 INFO L87 Difference]: Start difference. First operand 2496 states and 3381 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-20 23:13:53,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:13:53,764 INFO L93 Difference]: Finished difference Result 2496 states and 3381 transitions. [2021-11-20 23:13:53,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:13:53,782 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 2 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 128 [2021-11-20 23:13:53,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:13:53,792 INFO L225 Difference]: With dead ends: 2496 [2021-11-20 23:13:53,793 INFO L226 Difference]: Without dead ends: 2494 [2021-11-20 23:13:53,794 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:13:53,796 INFO L933 BasicCegarLoop]: 1360 mSDtfsCounter, 1517 mSDsluCounter, 1551 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1519 SdHoareTripleChecker+Valid, 2720 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:13:53,796 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1519 Valid, 2720 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-20 23:13:53,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2494 states. [2021-11-20 23:13:54,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2494 to 2494. [2021-11-20 23:13:54,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2494 states, 1412 states have (on average 1.2060906515580736) internal successors, (1703), 1503 states have internal predecessors, (1703), 834 states have call successors, (834), 244 states have call predecessors, (834), 236 states have return successors, (841), 801 states have call predecessors, (841), 832 states have call successors, (841) [2021-11-20 23:13:54,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2494 states to 2494 states and 3378 transitions. [2021-11-20 23:13:54,050 INFO L78 Accepts]: Start accepts. Automaton has 2494 states and 3378 transitions. Word has length 128 [2021-11-20 23:13:54,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:13:54,051 INFO L470 AbstractCegarLoop]: Abstraction has 2494 states and 3378 transitions. [2021-11-20 23:13:54,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-20 23:13:54,051 INFO L276 IsEmpty]: Start isEmpty. Operand 2494 states and 3378 transitions. [2021-11-20 23:13:54,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-11-20 23:13:54,054 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:54,054 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 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] [2021-11-20 23:13:54,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-20 23:13:54,055 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-20 23:13:54,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:54,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1899017786, now seen corresponding path program 1 times [2021-11-20 23:13:54,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:54,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455134595] [2021-11-20 23:13:54,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:54,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:54,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:54,227 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2021-11-20 23:13:54,228 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:54,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455134595] [2021-11-20 23:13:54,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455134595] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 23:13:54,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1436993340] [2021-11-20 23:13:54,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:54,229 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:13:54,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:13:54,230 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:13:54,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 23:13:55,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:55,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 3095 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 23:13:55,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:13:55,496 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2021-11-20 23:13:55,496 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:13:55,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1436993340] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:55,497 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 23:13:55,497 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2021-11-20 23:13:55,498 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069213872] [2021-11-20 23:13:55,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:55,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:13:55,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:55,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:13:55,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-20 23:13:55,501 INFO L87 Difference]: Start difference. First operand 2494 states and 3378 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2021-11-20 23:13:56,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:13:56,739 INFO L93 Difference]: Finished difference Result 4526 states and 6102 transitions. [2021-11-20 23:13:56,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:13:56,749 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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 161 [2021-11-20 23:13:56,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:13:56,756 INFO L225 Difference]: With dead ends: 4526 [2021-11-20 23:13:56,756 INFO L226 Difference]: Without dead ends: 2510 [2021-11-20 23:13:56,765 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-20 23:13:56,765 INFO L933 BasicCegarLoop]: 1368 mSDtfsCounter, 1464 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1464 SdHoareTripleChecker+Valid, 1418 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:13:56,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1464 Valid, 1418 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-20 23:13:56,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2510 states. [2021-11-20 23:13:57,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2510 to 2508. [2021-11-20 23:13:57,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2508 states, 1417 states have (on average 1.2025405786873677) internal successors, (1704), 1508 states have internal predecessors, (1704), 838 states have call successors, (838), 250 states have call predecessors, (838), 242 states have return successors, (845), 804 states have call predecessors, (845), 836 states have call successors, (845) [2021-11-20 23:13:57,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2508 states to 2508 states and 3387 transitions. [2021-11-20 23:13:57,026 INFO L78 Accepts]: Start accepts. Automaton has 2508 states and 3387 transitions. Word has length 161 [2021-11-20 23:13:57,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:13:57,027 INFO L470 AbstractCegarLoop]: Abstraction has 2508 states and 3387 transitions. [2021-11-20 23:13:57,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2021-11-20 23:13:57,027 INFO L276 IsEmpty]: Start isEmpty. Operand 2508 states and 3387 transitions. [2021-11-20 23:13:57,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-20 23:13:57,030 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:57,030 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-11-20 23:13:57,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 23:13:57,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:13:57,256 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-20 23:13:57,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:57,257 INFO L85 PathProgramCache]: Analyzing trace with hash -431308655, now seen corresponding path program 1 times [2021-11-20 23:13:57,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:57,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71048221] [2021-11-20 23:13:57,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:57,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:57,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:57,396 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 23:13:57,396 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:57,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71048221] [2021-11-20 23:13:57,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71048221] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:57,396 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:13:57,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:13:57,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285566716] [2021-11-20 23:13:57,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:57,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:13:57,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:57,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:13:57,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:13:57,398 INFO L87 Difference]: Start difference. First operand 2508 states and 3387 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-20 23:13:59,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:13:59,521 INFO L93 Difference]: Finished difference Result 2508 states and 3387 transitions. [2021-11-20 23:13:59,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:13:59,532 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (27), 2 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 133 [2021-11-20 23:13:59,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:13:59,545 INFO L225 Difference]: With dead ends: 2508 [2021-11-20 23:13:59,546 INFO L226 Difference]: Without dead ends: 2506 [2021-11-20 23:13:59,548 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:13:59,550 INFO L933 BasicCegarLoop]: 1353 mSDtfsCounter, 1509 mSDsluCounter, 1544 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1511 SdHoareTripleChecker+Valid, 2706 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-20 23:13:59,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1511 Valid, 2706 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-20 23:13:59,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2506 states. [2021-11-20 23:13:59,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2506 to 2506. [2021-11-20 23:13:59,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2506 states, 1416 states have (on average 1.201271186440678) internal successors, (1701), 1506 states have internal predecessors, (1701), 838 states have call successors, (838), 250 states have call predecessors, (838), 242 states have return successors, (845), 804 states have call predecessors, (845), 836 states have call successors, (845) [2021-11-20 23:13:59,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2506 states to 2506 states and 3384 transitions. [2021-11-20 23:13:59,820 INFO L78 Accepts]: Start accepts. Automaton has 2506 states and 3384 transitions. Word has length 133 [2021-11-20 23:13:59,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:13:59,821 INFO L470 AbstractCegarLoop]: Abstraction has 2506 states and 3384 transitions. [2021-11-20 23:13:59,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-20 23:13:59,821 INFO L276 IsEmpty]: Start isEmpty. Operand 2506 states and 3384 transitions. [2021-11-20 23:13:59,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-20 23:13:59,824 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:59,825 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-11-20 23:13:59,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-20 23:13:59,825 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-20 23:13:59,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:59,826 INFO L85 PathProgramCache]: Analyzing trace with hash 203946199, now seen corresponding path program 1 times [2021-11-20 23:13:59,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:59,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650688030] [2021-11-20 23:13:59,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:59,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:59,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:59,969 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 23:13:59,969 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:59,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650688030] [2021-11-20 23:13:59,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650688030] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:59,970 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:13:59,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:13:59,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995181228] [2021-11-20 23:13:59,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:59,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:13:59,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:59,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:13:59,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:13:59,972 INFO L87 Difference]: Start difference. First operand 2506 states and 3384 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-20 23:14:02,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:14:02,667 INFO L93 Difference]: Finished difference Result 4417 states and 5955 transitions. [2021-11-20 23:14:02,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:14:02,668 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (28), 2 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 138 [2021-11-20 23:14:02,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:14:02,688 INFO L225 Difference]: With dead ends: 4417 [2021-11-20 23:14:02,688 INFO L226 Difference]: Without dead ends: 4415 [2021-11-20 23:14:02,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:14:02,692 INFO L933 BasicCegarLoop]: 1703 mSDtfsCounter, 1198 mSDsluCounter, 3332 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1200 SdHoareTripleChecker+Valid, 4660 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:14:02,692 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1200 Valid, 4660 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-11-20 23:14:02,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4415 states. [2021-11-20 23:14:03,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4415 to 4379. [2021-11-20 23:14:03,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4379 states, 2468 states have (on average 1.195705024311183) internal successors, (2951), 2630 states have internal predecessors, (2951), 1475 states have call successors, (1475), 440 states have call predecessors, (1475), 426 states have return successors, (1495), 1409 states have call predecessors, (1495), 1473 states have call successors, (1495) [2021-11-20 23:14:03,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4379 states to 4379 states and 5921 transitions. [2021-11-20 23:14:03,231 INFO L78 Accepts]: Start accepts. Automaton has 4379 states and 5921 transitions. Word has length 138 [2021-11-20 23:14:03,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:14:03,231 INFO L470 AbstractCegarLoop]: Abstraction has 4379 states and 5921 transitions. [2021-11-20 23:14:03,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-20 23:14:03,232 INFO L276 IsEmpty]: Start isEmpty. Operand 4379 states and 5921 transitions. [2021-11-20 23:14:03,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-11-20 23:14:03,235 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:14:03,235 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-11-20 23:14:03,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-20 23:14:03,236 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-20 23:14:03,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:14:03,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1919735772, now seen corresponding path program 1 times [2021-11-20 23:14:03,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:14:03,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075161125] [2021-11-20 23:14:03,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:03,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:14:03,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:14:03,370 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 23:14:03,371 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:14:03,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075161125] [2021-11-20 23:14:03,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075161125] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:14:03,371 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:14:03,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:14:03,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951290054] [2021-11-20 23:14:03,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:14:03,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:14:03,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:14:03,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:14:03,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:14:03,374 INFO L87 Difference]: Start difference. First operand 4379 states and 5921 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-20 23:14:05,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:14:05,521 INFO L93 Difference]: Finished difference Result 4379 states and 5921 transitions. [2021-11-20 23:14:05,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:14:05,528 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (29), 2 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 143 [2021-11-20 23:14:05,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:14:05,547 INFO L225 Difference]: With dead ends: 4379 [2021-11-20 23:14:05,547 INFO L226 Difference]: Without dead ends: 4377 [2021-11-20 23:14:05,550 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:14:05,551 INFO L933 BasicCegarLoop]: 1351 mSDtfsCounter, 1505 mSDsluCounter, 1542 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 2702 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-20 23:14:05,551 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1507 Valid, 2702 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-20 23:14:05,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4377 states. [2021-11-20 23:14:06,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4377 to 4377. [2021-11-20 23:14:06,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4377 states, 2467 states have (on average 1.194973652209161) internal successors, (2948), 2628 states have internal predecessors, (2948), 1475 states have call successors, (1475), 440 states have call predecessors, (1475), 426 states have return successors, (1495), 1409 states have call predecessors, (1495), 1473 states have call successors, (1495) [2021-11-20 23:14:06,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4377 states to 4377 states and 5918 transitions. [2021-11-20 23:14:06,064 INFO L78 Accepts]: Start accepts. Automaton has 4377 states and 5918 transitions. Word has length 143 [2021-11-20 23:14:06,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:14:06,065 INFO L470 AbstractCegarLoop]: Abstraction has 4377 states and 5918 transitions. [2021-11-20 23:14:06,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-20 23:14:06,065 INFO L276 IsEmpty]: Start isEmpty. Operand 4377 states and 5918 transitions. [2021-11-20 23:14:06,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-20 23:14:06,069 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:14:06,069 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-11-20 23:14:06,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-20 23:14:06,069 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-20 23:14:06,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:14:06,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1497336560, now seen corresponding path program 1 times [2021-11-20 23:14:06,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:14:06,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619054454] [2021-11-20 23:14:06,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:06,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:14:06,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:14:06,213 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 23:14:06,214 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:14:06,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619054454] [2021-11-20 23:14:06,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619054454] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:14:06,214 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:14:06,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:14:06,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109171912] [2021-11-20 23:14:06,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:14:06,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:14:06,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:14:06,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:14:06,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:14:06,217 INFO L87 Difference]: Start difference. First operand 4377 states and 5918 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-20 23:14:09,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:14:09,404 INFO L93 Difference]: Finished difference Result 7609 states and 10278 transitions. [2021-11-20 23:14:09,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:14:09,404 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 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 148 [2021-11-20 23:14:09,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:14:09,437 INFO L225 Difference]: With dead ends: 7609 [2021-11-20 23:14:09,437 INFO L226 Difference]: Without dead ends: 7364 [2021-11-20 23:14:09,443 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:14:09,444 INFO L933 BasicCegarLoop]: 1703 mSDtfsCounter, 1425 mSDsluCounter, 3309 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1425 SdHoareTripleChecker+Valid, 4645 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-20 23:14:09,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1425 Valid, 4645 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-11-20 23:14:09,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7364 states. [2021-11-20 23:14:10,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7364 to 7335. [2021-11-20 23:14:10,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7335 states, 4138 states have (on average 1.1981633639439342) internal successors, (4958), 4407 states have internal predecessors, (4958), 2484 states have call successors, (2484), 728 states have call predecessors, (2484), 704 states have return successors, (2530), 2375 states have call predecessors, (2530), 2478 states have call successors, (2530) [2021-11-20 23:14:10,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7335 states to 7335 states and 9972 transitions. [2021-11-20 23:14:10,339 INFO L78 Accepts]: Start accepts. Automaton has 7335 states and 9972 transitions. Word has length 148 [2021-11-20 23:14:10,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:14:10,339 INFO L470 AbstractCegarLoop]: Abstraction has 7335 states and 9972 transitions. [2021-11-20 23:14:10,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-20 23:14:10,340 INFO L276 IsEmpty]: Start isEmpty. Operand 7335 states and 9972 transitions. [2021-11-20 23:14:10,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-11-20 23:14:10,343 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:14:10,343 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-11-20 23:14:10,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-20 23:14:10,344 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_assert_linux_kernel_sched_completion__wait_without_initErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-20 23:14:10,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:14:10,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1308208535, now seen corresponding path program 1 times [2021-11-20 23:14:10,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:14:10,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811177363] [2021-11-20 23:14:10,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:10,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:14:10,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:14:10,542 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2021-11-20 23:14:10,543 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:14:10,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811177363] [2021-11-20 23:14:10,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811177363] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:14:10,543 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:14:10,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 23:14:10,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677695723] [2021-11-20 23:14:10,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:14:10,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 23:14:10,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:14:10,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 23:14:10,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:14:10,545 INFO L87 Difference]: Start difference. First operand 7335 states and 9972 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-20 23:14:14,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:14:14,866 INFO L93 Difference]: Finished difference Result 13841 states and 19237 transitions. [2021-11-20 23:14:14,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 23:14:14,867 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 189 [2021-11-20 23:14:14,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:14:14,922 INFO L225 Difference]: With dead ends: 13841 [2021-11-20 23:14:14,922 INFO L226 Difference]: Without dead ends: 13839 [2021-11-20 23:14:14,931 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-20 23:14:14,932 INFO L933 BasicCegarLoop]: 2075 mSDtfsCounter, 1509 mSDsluCounter, 6021 mSDsCounter, 0 mSdLazyCounter, 993 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1511 SdHoareTripleChecker+Valid, 7389 SdHoareTripleChecker+Invalid, 995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:14:14,932 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1511 Valid, 7389 Invalid, 995 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 993 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2021-11-20 23:14:14,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13839 states. [2021-11-20 23:14:16,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13839 to 11549. [2021-11-20 23:14:16,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11549 states, 6513 states have (on average 1.204514048825426) internal successors, (7845), 6942 states have internal predecessors, (7845), 3933 states have call successors, (3933), 1104 states have call predecessors, (3933), 1094 states have return successors, (4279), 3800 states have call predecessors, (4279), 3927 states have call successors, (4279) [2021-11-20 23:14:16,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11549 states to 11549 states and 16057 transitions. [2021-11-20 23:14:16,215 INFO L78 Accepts]: Start accepts. Automaton has 11549 states and 16057 transitions. Word has length 189 [2021-11-20 23:14:16,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:14:16,216 INFO L470 AbstractCegarLoop]: Abstraction has 11549 states and 16057 transitions. [2021-11-20 23:14:16,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-20 23:14:16,216 INFO L276 IsEmpty]: Start isEmpty. Operand 11549 states and 16057 transitions. [2021-11-20 23:14:16,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-20 23:14:16,220 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:14:16,220 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-20 23:14:16,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-20 23:14:16,221 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-20 23:14:16,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:14:16,221 INFO L85 PathProgramCache]: Analyzing trace with hash -687489370, now seen corresponding path program 1 times [2021-11-20 23:14:16,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:14:16,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078229465] [2021-11-20 23:14:16,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:16,222 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:14:16,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:14:16,413 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2021-11-20 23:14:16,413 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:14:16,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078229465] [2021-11-20 23:14:16,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078229465] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:14:16,414 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:14:16,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 23:14:16,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200620148] [2021-11-20 23:14:16,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:14:16,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 23:14:16,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:14:16,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 23:14:16,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 23:14:16,416 INFO L87 Difference]: Start difference. First operand 11549 states and 16057 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 3 states have call predecessors, (30), 1 states have call successors, (30) [2021-11-20 23:14:21,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:14:21,417 INFO L93 Difference]: Finished difference Result 22464 states and 31751 transitions. [2021-11-20 23:14:21,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 23:14:21,418 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 3 states have call predecessors, (30), 1 states have call successors, (30) Word has length 175 [2021-11-20 23:14:21,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:14:21,458 INFO L225 Difference]: With dead ends: 22464 [2021-11-20 23:14:21,458 INFO L226 Difference]: Without dead ends: 11714 [2021-11-20 23:14:21,503 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-20 23:14:21,504 INFO L933 BasicCegarLoop]: 1384 mSDtfsCounter, 18 mSDsluCounter, 6275 mSDsCounter, 0 mSdLazyCounter, 983 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 6891 SdHoareTripleChecker+Invalid, 988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-11-20 23:14:21,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 6891 Invalid, 988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 983 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2021-11-20 23:14:21,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11714 states. [2021-11-20 23:14:22,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11714 to 11594. [2021-11-20 23:14:22,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11594 states, 6549 states have (on average 1.2033898305084745) internal successors, (7881), 6978 states have internal predecessors, (7881), 3933 states have call successors, (3933), 1104 states have call predecessors, (3933), 1103 states have return successors, (4306), 3809 states have call predecessors, (4306), 3927 states have call successors, (4306) [2021-11-20 23:14:22,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11594 states to 11594 states and 16120 transitions. [2021-11-20 23:14:22,630 INFO L78 Accepts]: Start accepts. Automaton has 11594 states and 16120 transitions. Word has length 175 [2021-11-20 23:14:22,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:14:22,631 INFO L470 AbstractCegarLoop]: Abstraction has 11594 states and 16120 transitions. [2021-11-20 23:14:22,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 3 states have call predecessors, (30), 1 states have call successors, (30) [2021-11-20 23:14:22,631 INFO L276 IsEmpty]: Start isEmpty. Operand 11594 states and 16120 transitions. [2021-11-20 23:14:22,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-11-20 23:14:22,635 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:14:22,635 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-11-20 23:14:22,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-20 23:14:22,636 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-20 23:14:22,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:14:22,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1880143727, now seen corresponding path program 1 times [2021-11-20 23:14:22,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:14:22,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973271491] [2021-11-20 23:14:22,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:22,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:14:22,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:14:22,816 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2021-11-20 23:14:22,817 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:14:22,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973271491] [2021-11-20 23:14:22,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973271491] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:14:22,817 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:14:22,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 23:14:22,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556186828] [2021-11-20 23:14:22,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:14:22,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 23:14:22,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:14:22,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 23:14:22,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:14:22,819 INFO L87 Difference]: Start difference. First operand 11594 states and 16120 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 1 states have call successors, (32) [2021-11-20 23:14:27,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:14:27,076 INFO L93 Difference]: Finished difference Result 22967 states and 32596 transitions. [2021-11-20 23:14:27,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 23:14:27,077 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 1 states have call successors, (32) Word has length 197 [2021-11-20 23:14:27,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:14:27,111 INFO L225 Difference]: With dead ends: 22967 [2021-11-20 23:14:27,111 INFO L226 Difference]: Without dead ends: 11903 [2021-11-20 23:14:27,148 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 23:14:27,148 INFO L933 BasicCegarLoop]: 1390 mSDtfsCounter, 23 mSDsluCounter, 4733 mSDsCounter, 0 mSdLazyCounter, 807 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 5534 SdHoareTripleChecker+Invalid, 809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:14:27,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 5534 Invalid, 809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 807 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2021-11-20 23:14:27,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11903 states. [2021-11-20 23:14:28,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11903 to 11612. [2021-11-20 23:14:28,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11612 states, 6567 states have (on average 1.2028323435358612) internal successors, (7899), 6987 states have internal predecessors, (7899), 3933 states have call successors, (3933), 1104 states have call predecessors, (3933), 1103 states have return successors, (4306), 3818 states have call predecessors, (4306), 3927 states have call successors, (4306) [2021-11-20 23:14:28,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11612 states to 11612 states and 16138 transitions. [2021-11-20 23:14:28,430 INFO L78 Accepts]: Start accepts. Automaton has 11612 states and 16138 transitions. Word has length 197 [2021-11-20 23:14:28,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:14:28,431 INFO L470 AbstractCegarLoop]: Abstraction has 11612 states and 16138 transitions. [2021-11-20 23:14:28,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 1 states have call successors, (32) [2021-11-20 23:14:28,431 INFO L276 IsEmpty]: Start isEmpty. Operand 11612 states and 16138 transitions. [2021-11-20 23:14:28,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-20 23:14:28,435 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:14:28,435 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-20 23:14:28,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-20 23:14:28,436 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-20 23:14:28,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:14:28,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1781618310, now seen corresponding path program 1 times [2021-11-20 23:14:28,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:14:28,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713647446] [2021-11-20 23:14:28,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:28,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:14:28,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:14:28,718 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2021-11-20 23:14:28,718 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:14:28,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713647446] [2021-11-20 23:14:28,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713647446] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:14:28,719 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:14:28,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 23:14:28,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752452916] [2021-11-20 23:14:28,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:14:28,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 23:14:28,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:14:28,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 23:14:28,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:14:28,721 INFO L87 Difference]: Start difference. First operand 11612 states and 16138 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 3 states have call predecessors, (30), 1 states have call successors, (30) [2021-11-20 23:14:33,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:14:33,249 INFO L93 Difference]: Finished difference Result 23012 states and 32641 transitions. [2021-11-20 23:14:33,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 23:14:33,250 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 3 states have call predecessors, (30), 1 states have call successors, (30) Word has length 175 [2021-11-20 23:14:33,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:14:33,285 INFO L225 Difference]: With dead ends: 23012 [2021-11-20 23:14:33,285 INFO L226 Difference]: Without dead ends: 11930 [2021-11-20 23:14:33,329 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 23:14:33,330 INFO L933 BasicCegarLoop]: 1391 mSDtfsCounter, 23 mSDsluCounter, 4735 mSDsCounter, 0 mSdLazyCounter, 807 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 5537 SdHoareTripleChecker+Invalid, 809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:14:33,330 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 5537 Invalid, 809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 807 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2021-11-20 23:14:33,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11930 states. [2021-11-20 23:14:34,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11930 to 11630. [2021-11-20 23:14:34,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11630 states, 6585 states have (on average 1.2022779043280183) internal successors, (7917), 6996 states have internal predecessors, (7917), 3933 states have call successors, (3933), 1104 states have call predecessors, (3933), 1103 states have return successors, (4306), 3827 states have call predecessors, (4306), 3927 states have call successors, (4306) [2021-11-20 23:14:34,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11630 states to 11630 states and 16156 transitions. [2021-11-20 23:14:34,391 INFO L78 Accepts]: Start accepts. Automaton has 11630 states and 16156 transitions. Word has length 175 [2021-11-20 23:14:34,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:14:34,392 INFO L470 AbstractCegarLoop]: Abstraction has 11630 states and 16156 transitions. [2021-11-20 23:14:34,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 3 states have call predecessors, (30), 1 states have call successors, (30) [2021-11-20 23:14:34,392 INFO L276 IsEmpty]: Start isEmpty. Operand 11630 states and 16156 transitions. [2021-11-20 23:14:34,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-11-20 23:14:34,396 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:14:34,397 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-11-20 23:14:34,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-20 23:14:34,397 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-20 23:14:34,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:14:34,398 INFO L85 PathProgramCache]: Analyzing trace with hash -700515301, now seen corresponding path program 1 times [2021-11-20 23:14:34,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:14:34,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629274992] [2021-11-20 23:14:34,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:34,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:14:34,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:14:34,579 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2021-11-20 23:14:34,580 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:14:34,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629274992] [2021-11-20 23:14:34,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629274992] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:14:34,580 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:14:34,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 23:14:34,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552974256] [2021-11-20 23:14:34,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:14:34,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 23:14:34,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:14:34,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 23:14:34,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:14:34,582 INFO L87 Difference]: Start difference. First operand 11630 states and 16156 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 1 states have call successors, (32) [2021-11-20 23:14:39,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:14:39,134 INFO L93 Difference]: Finished difference Result 18591 states and 26031 transitions. [2021-11-20 23:14:39,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:14:39,135 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 1 states have call successors, (32) Word has length 201 [2021-11-20 23:14:39,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:14:39,171 INFO L225 Difference]: With dead ends: 18591 [2021-11-20 23:14:39,172 INFO L226 Difference]: Without dead ends: 11710 [2021-11-20 23:14:39,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:14:39,196 INFO L933 BasicCegarLoop]: 1369 mSDtfsCounter, 2 mSDsluCounter, 4670 mSDsCounter, 0 mSdLazyCounter, 778 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 5465 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-11-20 23:14:39,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 5465 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 778 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2021-11-20 23:14:39,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11710 states. [2021-11-20 23:14:40,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11710 to 11678. [2021-11-20 23:14:40,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11678 states, 6621 states have (on average 1.2011780697779793) internal successors, (7953), 7032 states have internal predecessors, (7953), 3933 states have call successors, (3933), 1104 states have call predecessors, (3933), 1115 states have return successors, (4388), 3839 states have call predecessors, (4388), 3927 states have call successors, (4388) [2021-11-20 23:14:40,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11678 states to 11678 states and 16274 transitions. [2021-11-20 23:14:40,325 INFO L78 Accepts]: Start accepts. Automaton has 11678 states and 16274 transitions. Word has length 201 [2021-11-20 23:14:40,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:14:40,326 INFO L470 AbstractCegarLoop]: Abstraction has 11678 states and 16274 transitions. [2021-11-20 23:14:40,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 1 states have call successors, (32) [2021-11-20 23:14:40,326 INFO L276 IsEmpty]: Start isEmpty. Operand 11678 states and 16274 transitions. [2021-11-20 23:14:40,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-11-20 23:14:40,330 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:14:40,330 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-11-20 23:14:40,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-11-20 23:14:40,330 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-20 23:14:40,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:14:40,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1266197090, now seen corresponding path program 1 times [2021-11-20 23:14:40,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:14:40,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50136467] [2021-11-20 23:14:40,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:40,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:14:40,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:14:40,505 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2021-11-20 23:14:40,506 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:14:40,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50136467] [2021-11-20 23:14:40,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50136467] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:14:40,506 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:14:40,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 23:14:40,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322783433] [2021-11-20 23:14:40,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:14:40,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 23:14:40,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:14:40,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 23:14:40,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:14:40,508 INFO L87 Difference]: Start difference. First operand 11678 states and 16274 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 1 states have call successors, (32) [2021-11-20 23:14:44,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:14:44,436 INFO L93 Difference]: Finished difference Result 18663 states and 25983 transitions. [2021-11-20 23:14:44,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:14:44,437 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 1 states have call successors, (32) Word has length 199 [2021-11-20 23:14:44,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:14:44,469 INFO L225 Difference]: With dead ends: 18663 [2021-11-20 23:14:44,469 INFO L226 Difference]: Without dead ends: 11734 [2021-11-20 23:14:44,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:14:44,487 INFO L933 BasicCegarLoop]: 1368 mSDtfsCounter, 2 mSDsluCounter, 4667 mSDsCounter, 0 mSdLazyCounter, 778 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 5461 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:14:44,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 5461 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 778 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2021-11-20 23:14:44,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11734 states. [2021-11-20 23:14:45,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11734 to 11702. [2021-11-20 23:14:45,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11702 states, 6645 states have (on average 1.200451467268623) internal successors, (7977), 7044 states have internal predecessors, (7977), 3933 states have call successors, (3933), 1104 states have call predecessors, (3933), 1115 states have return successors, (4388), 3851 states have call predecessors, (4388), 3927 states have call successors, (4388) [2021-11-20 23:14:45,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11702 states to 11702 states and 16298 transitions. [2021-11-20 23:14:45,470 INFO L78 Accepts]: Start accepts. Automaton has 11702 states and 16298 transitions. Word has length 199 [2021-11-20 23:14:45,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:14:45,471 INFO L470 AbstractCegarLoop]: Abstraction has 11702 states and 16298 transitions. [2021-11-20 23:14:45,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 1 states have call successors, (32) [2021-11-20 23:14:45,471 INFO L276 IsEmpty]: Start isEmpty. Operand 11702 states and 16298 transitions. [2021-11-20 23:14:45,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-11-20 23:14:45,474 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:14:45,475 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-11-20 23:14:45,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-20 23:14:45,475 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-20 23:14:45,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:14:45,476 INFO L85 PathProgramCache]: Analyzing trace with hash 809025413, now seen corresponding path program 1 times [2021-11-20 23:14:45,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:14:45,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601225336] [2021-11-20 23:14:45,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:45,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:14:46,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:14:46,204 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2021-11-20 23:14:46,204 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:14:46,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601225336] [2021-11-20 23:14:46,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601225336] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:14:46,204 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:14:46,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 23:14:46,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278311283] [2021-11-20 23:14:46,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:14:46,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 23:14:46,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:14:46,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 23:14:46,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-20 23:14:46,206 INFO L87 Difference]: Start difference. First operand 11702 states and 16298 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 5 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 5 states have call predecessors, (33), 4 states have call successors, (33) [2021-11-20 23:14:49,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:14:49,658 INFO L93 Difference]: Finished difference Result 19294 states and 26897 transitions. [2021-11-20 23:14:49,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 23:14:49,658 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 5 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 5 states have call predecessors, (33), 4 states have call successors, (33) Word has length 201 [2021-11-20 23:14:49,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:14:49,713 INFO L225 Difference]: With dead ends: 19294 [2021-11-20 23:14:49,714 INFO L226 Difference]: Without dead ends: 12341 [2021-11-20 23:14:49,733 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-11-20 23:14:49,734 INFO L933 BasicCegarLoop]: 1354 mSDtfsCounter, 223 mSDsluCounter, 3009 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 3988 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-20 23:14:49,735 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [223 Valid, 3988 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-11-20 23:14:49,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12341 states. [2021-11-20 23:14:50,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12341 to 12116. [2021-11-20 23:14:50,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12116 states, 6950 states have (on average 1.2033093525179857) internal successors, (8363), 7341 states have internal predecessors, (8363), 4014 states have call successors, (4014), 1113 states have call predecessors, (4014), 1143 states have return successors, (4524), 3959 states have call predecessors, (4524), 4008 states have call successors, (4524) [2021-11-20 23:14:50,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12116 states to 12116 states and 16901 transitions. [2021-11-20 23:14:50,659 INFO L78 Accepts]: Start accepts. Automaton has 12116 states and 16901 transitions. Word has length 201 [2021-11-20 23:14:50,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:14:50,659 INFO L470 AbstractCegarLoop]: Abstraction has 12116 states and 16901 transitions. [2021-11-20 23:14:50,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 5 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 5 states have call predecessors, (33), 4 states have call successors, (33) [2021-11-20 23:14:50,660 INFO L276 IsEmpty]: Start isEmpty. Operand 12116 states and 16901 transitions. [2021-11-20 23:14:50,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-11-20 23:14:50,663 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:14:50,664 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-20 23:14:50,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-11-20 23:14:50,664 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-20 23:14:50,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:14:50,665 INFO L85 PathProgramCache]: Analyzing trace with hash -6803130, now seen corresponding path program 1 times [2021-11-20 23:14:50,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:14:50,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739975837] [2021-11-20 23:14:50,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:50,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:14:50,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:14:51,092 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2021-11-20 23:14:51,092 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:14:51,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739975837] [2021-11-20 23:14:51,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739975837] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:14:51,093 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:14:51,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 23:14:51,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303958496] [2021-11-20 23:14:51,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:14:51,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 23:14:51,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:14:51,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 23:14:51,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-20 23:14:51,095 INFO L87 Difference]: Start difference. First operand 12116 states and 16901 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 5 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 5 states have call predecessors, (31), 4 states have call successors, (31) [2021-11-20 23:14:55,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:14:55,083 INFO L93 Difference]: Finished difference Result 20451 states and 28637 transitions. [2021-11-20 23:14:55,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 23:14:55,089 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 5 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 5 states have call predecessors, (31), 4 states have call successors, (31) Word has length 179 [2021-11-20 23:14:55,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:14:55,130 INFO L225 Difference]: With dead ends: 20451 [2021-11-20 23:14:55,130 INFO L226 Difference]: Without dead ends: 13172 [2021-11-20 23:14:55,155 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-11-20 23:14:55,156 INFO L933 BasicCegarLoop]: 1367 mSDtfsCounter, 188 mSDsluCounter, 3019 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 4011 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:14:55,156 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [188 Valid, 4011 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-11-20 23:14:55,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13172 states. [2021-11-20 23:14:56,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13172 to 12720. [2021-11-20 23:14:56,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12720 states, 7404 states have (on average 1.2078606158833063) internal successors, (8943), 7763 states have internal predecessors, (8943), 4140 states have call successors, (4140), 1127 states have call predecessors, (4140), 1167 states have return successors, (4622), 4127 states have call predecessors, (4622), 4134 states have call successors, (4622) [2021-11-20 23:14:56,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12720 states to 12720 states and 17705 transitions. [2021-11-20 23:14:56,243 INFO L78 Accepts]: Start accepts. Automaton has 12720 states and 17705 transitions. Word has length 179 [2021-11-20 23:14:56,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:14:56,244 INFO L470 AbstractCegarLoop]: Abstraction has 12720 states and 17705 transitions. [2021-11-20 23:14:56,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 5 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 5 states have call predecessors, (31), 4 states have call successors, (31) [2021-11-20 23:14:56,244 INFO L276 IsEmpty]: Start isEmpty. Operand 12720 states and 17705 transitions. [2021-11-20 23:14:56,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-11-20 23:14:56,246 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:14:56,246 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-20 23:14:56,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-11-20 23:14:56,247 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-20 23:14:56,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:14:56,247 INFO L85 PathProgramCache]: Analyzing trace with hash 578834448, now seen corresponding path program 1 times [2021-11-20 23:14:56,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:14:56,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137844778] [2021-11-20 23:14:56,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:56,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:14:56,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:14:56,712 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2021-11-20 23:14:56,712 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:14:56,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137844778] [2021-11-20 23:14:56,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137844778] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:14:56,712 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:14:56,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 23:14:56,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544686677] [2021-11-20 23:14:56,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:14:56,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 23:14:56,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:14:56,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 23:14:56,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:14:56,714 INFO L87 Difference]: Start difference. First operand 12720 states and 17705 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-20 23:15:00,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:15:00,574 INFO L93 Difference]: Finished difference Result 13239 states and 18312 transitions. [2021-11-20 23:15:00,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:15:00,575 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 179 [2021-11-20 23:15:00,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:15:00,619 INFO L225 Difference]: With dead ends: 13239 [2021-11-20 23:15:00,619 INFO L226 Difference]: Without dead ends: 13047 [2021-11-20 23:15:00,629 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-20 23:15:00,629 INFO L933 BasicCegarLoop]: 1362 mSDtfsCounter, 139 mSDsluCounter, 4583 mSDsCounter, 0 mSdLazyCounter, 779 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 5373 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-11-20 23:15:00,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 5373 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 779 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-11-20 23:15:00,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13047 states. [2021-11-20 23:15:01,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13047 to 13035. [2021-11-20 23:15:01,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13035 states, 7638 states have (on average 1.2052893427598848) internal successors, (9206), 7982 states have internal predecessors, (9206), 4145 states have call successors, (4145), 1203 states have call predecessors, (4145), 1243 states have return successors, (4622), 4135 states have call predecessors, (4622), 4133 states have call successors, (4622) [2021-11-20 23:15:01,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13035 states to 13035 states and 17973 transitions. [2021-11-20 23:15:01,729 INFO L78 Accepts]: Start accepts. Automaton has 13035 states and 17973 transitions. Word has length 179 [2021-11-20 23:15:01,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:15:01,729 INFO L470 AbstractCegarLoop]: Abstraction has 13035 states and 17973 transitions. [2021-11-20 23:15:01,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-20 23:15:01,730 INFO L276 IsEmpty]: Start isEmpty. Operand 13035 states and 17973 transitions. [2021-11-20 23:15:01,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2021-11-20 23:15:01,733 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:15:01,734 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:15:01,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-11-20 23:15:01,734 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-20 23:15:01,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:15:01,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1444317164, now seen corresponding path program 1 times [2021-11-20 23:15:01,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:15:01,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89660181] [2021-11-20 23:15:01,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:15:01,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:15:01,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:15:02,024 INFO L134 CoverageAnalysis]: Checked inductivity of 585 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 585 trivial. 0 not checked. [2021-11-20 23:15:02,024 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:15:02,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89660181] [2021-11-20 23:15:02,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89660181] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:15:02,025 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:15:02,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 23:15:02,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552294248] [2021-11-20 23:15:02,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:15:02,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 23:15:02,027 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:15:02,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 23:15:02,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-20 23:15:02,027 INFO L87 Difference]: Start difference. First operand 13035 states and 17973 transitions. Second operand has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (32), 3 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 1 states have call successors, (30) [2021-11-20 23:15:09,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:15:09,254 INFO L93 Difference]: Finished difference Result 14505 states and 20179 transitions. [2021-11-20 23:15:09,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 23:15:09,254 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (32), 3 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 1 states have call successors, (30) Word has length 212 [2021-11-20 23:15:09,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:15:09,309 INFO L225 Difference]: With dead ends: 14505 [2021-11-20 23:15:09,310 INFO L226 Difference]: Without dead ends: 14503 [2021-11-20 23:15:09,320 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-11-20 23:15:09,321 INFO L933 BasicCegarLoop]: 1513 mSDtfsCounter, 332 mSDsluCounter, 8980 mSDsCounter, 0 mSdLazyCounter, 1710 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 9393 SdHoareTripleChecker+Invalid, 1716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:15:09,321 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [379 Valid, 9393 Invalid, 1716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1710 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2021-11-20 23:15:09,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14503 states. [2021-11-20 23:15:10,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14503 to 13441. [2021-11-20 23:15:10,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13441 states, 7942 states have (on average 1.2064971040040293) internal successors, (9582), 8257 states have internal predecessors, (9582), 4177 states have call successors, (4177), 1256 states have call predecessors, (4177), 1313 states have return successors, (4650), 4213 states have call predecessors, (4650), 4165 states have call successors, (4650) [2021-11-20 23:15:10,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13441 states to 13441 states and 18409 transitions. [2021-11-20 23:15:10,690 INFO L78 Accepts]: Start accepts. Automaton has 13441 states and 18409 transitions. Word has length 212 [2021-11-20 23:15:10,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:15:10,690 INFO L470 AbstractCegarLoop]: Abstraction has 13441 states and 18409 transitions. [2021-11-20 23:15:10,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (32), 3 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 1 states have call successors, (30) [2021-11-20 23:15:10,690 INFO L276 IsEmpty]: Start isEmpty. Operand 13441 states and 18409 transitions. [2021-11-20 23:15:10,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-11-20 23:15:10,693 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:15:10,693 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:15:10,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-11-20 23:15:10,694 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-20 23:15:10,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:15:10,694 INFO L85 PathProgramCache]: Analyzing trace with hash -501430941, now seen corresponding path program 1 times [2021-11-20 23:15:10,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:15:10,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012599809] [2021-11-20 23:15:10,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:15:10,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:15:10,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:15:10,931 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2021-11-20 23:15:10,931 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:15:10,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012599809] [2021-11-20 23:15:10,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012599809] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 23:15:10,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1983196974] [2021-11-20 23:15:10,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:15:10,932 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:15:10,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:15:10,934 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:15:10,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_030d27b8-dfc9-4478-b520-f3fc208950f6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 23:15:11,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:15:11,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 3350 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-20 23:15:11,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:15:12,523 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 230 proven. 1 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2021-11-20 23:15:12,523 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:15:13,325 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 439 trivial. 0 not checked. [2021-11-20 23:15:13,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1983196974] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 23:15:13,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [286535929] [2021-11-20 23:15:13,352 INFO L159 IcfgInterpreter]: Started Sifa with 82 locations of interest [2021-11-20 23:15:13,352 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 23:15:13,358 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 23:15:13,363 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 23:15:13,364 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs