./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI --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 87fc46113f1aa6bf5cd254bff58332904e2431653df647e3a9a61cd4104d8890 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:40:32,617 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:40:32,619 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:40:32,645 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:40:32,645 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:40:32,647 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:40:32,648 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:40:32,650 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:40:32,651 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:40:32,652 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:40:32,654 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:40:32,655 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:40:32,655 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:40:32,656 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:40:32,658 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:40:32,659 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:40:32,660 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:40:32,661 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:40:32,663 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:40:32,665 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:40:32,666 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:40:32,668 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:40:32,669 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:40:32,670 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:40:32,674 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:40:32,674 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:40:32,675 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:40:32,676 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:40:32,676 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:40:32,677 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:40:32,678 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:40:32,679 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:40:32,679 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:40:32,680 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:40:32,681 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:40:32,682 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:40:32,683 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:40:32,683 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:40:32,683 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:40:32,684 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:40:32,685 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:40:32,686 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 02:40:32,707 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:40:32,707 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:40:32,708 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:40:32,708 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:40:32,709 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:40:32,709 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:40:32,710 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:40:32,710 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:40:32,710 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:40:32,711 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:40:32,711 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:40:32,711 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:40:32,712 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:40:32,712 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:40:32,712 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:40:32,713 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:40:32,730 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:40:32,731 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:40:32,732 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:40:32,733 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:40:32,733 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:40:32,733 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:40:32,734 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:40:32,734 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:40:32,734 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:40:32,735 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:40:32,735 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:40:32,735 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:40:32,736 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:40:32,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:40:32,736 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:40:32,737 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:40:32,737 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:40:32,737 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:40:32,738 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:40:32,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:40:32,738 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:40:32,739 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:40:32,739 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87fc46113f1aa6bf5cd254bff58332904e2431653df647e3a9a61cd4104d8890 [2022-11-03 02:40:32,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:40:32,998 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:40:33,001 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:40:33,002 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:40:33,003 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:40:33,004 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i [2022-11-03 02:40:33,089 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/data/a883f3867/930e902afd3a4ceca74d2f7261f17845/FLAG00f41c49b [2022-11-03 02:40:33,935 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:40:33,935 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i [2022-11-03 02:40:33,982 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/data/a883f3867/930e902afd3a4ceca74d2f7261f17845/FLAG00f41c49b [2022-11-03 02:40:34,397 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/data/a883f3867/930e902afd3a4ceca74d2f7261f17845 [2022-11-03 02:40:34,399 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:40:34,400 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:40:34,402 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:40:34,402 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:40:34,405 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:40:34,406 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:40:34" (1/1) ... [2022-11-03 02:40:34,407 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ec3cd03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:34, skipping insertion in model container [2022-11-03 02:40:34,408 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:40:34" (1/1) ... [2022-11-03 02:40:34,414 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:40:34,554 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:40:37,044 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[287816,287829] [2022-11-03 02:40:37,047 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[287961,287974] [2022-11-03 02:40:37,048 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288107,288120] [2022-11-03 02:40:37,048 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288272,288285] [2022-11-03 02:40:37,049 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288430,288443] [2022-11-03 02:40:37,049 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288588,288601] [2022-11-03 02:40:37,050 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288746,288759] [2022-11-03 02:40:37,050 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288906,288919] [2022-11-03 02:40:37,051 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289065,289078] [2022-11-03 02:40:37,051 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289204,289217] [2022-11-03 02:40:37,052 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289346,289359] [2022-11-03 02:40:37,052 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289495,289508] [2022-11-03 02:40:37,053 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289634,289647] [2022-11-03 02:40:37,054 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289789,289802] [2022-11-03 02:40:37,054 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289949,289962] [2022-11-03 02:40:37,061 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290100,290113] [2022-11-03 02:40:37,068 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290251,290264] [2022-11-03 02:40:37,068 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290403,290416] [2022-11-03 02:40:37,069 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290552,290565] [2022-11-03 02:40:37,070 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290700,290713] [2022-11-03 02:40:37,070 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290857,290870] [2022-11-03 02:40:37,071 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291006,291019] [2022-11-03 02:40:37,071 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291162,291175] [2022-11-03 02:40:37,079 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291315,291328] [2022-11-03 02:40:37,080 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291461,291474] [2022-11-03 02:40:37,080 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291604,291617] [2022-11-03 02:40:37,081 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291756,291769] [2022-11-03 02:40:37,081 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291902,291915] [2022-11-03 02:40:37,082 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292047,292060] [2022-11-03 02:40:37,082 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292201,292214] [2022-11-03 02:40:37,083 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292352,292365] [2022-11-03 02:40:37,083 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292507,292520] [2022-11-03 02:40:37,084 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292659,292672] [2022-11-03 02:40:37,084 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292814,292827] [2022-11-03 02:40:37,085 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292978,292991] [2022-11-03 02:40:37,085 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293134,293147] [2022-11-03 02:40:37,087 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293298,293311] [2022-11-03 02:40:37,088 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293440,293453] [2022-11-03 02:40:37,088 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293598,293611] [2022-11-03 02:40:37,089 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293765,293778] [2022-11-03 02:40:37,089 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293924,293937] [2022-11-03 02:40:37,091 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294083,294096] [2022-11-03 02:40:37,092 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294232,294245] [2022-11-03 02:40:37,092 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294379,294392] [2022-11-03 02:40:37,093 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294518,294531] [2022-11-03 02:40:37,093 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294681,294694] [2022-11-03 02:40:37,095 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294847,294860] [2022-11-03 02:40:37,095 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295011,295024] [2022-11-03 02:40:37,097 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295176,295189] [2022-11-03 02:40:37,097 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295341,295354] [2022-11-03 02:40:37,098 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295507,295520] [2022-11-03 02:40:37,098 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295672,295685] [2022-11-03 02:40:37,099 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295839,295852] [2022-11-03 02:40:37,100 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295999,296012] [2022-11-03 02:40:37,100 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296161,296174] [2022-11-03 02:40:37,101 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296320,296333] [2022-11-03 02:40:37,101 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296466,296479] [2022-11-03 02:40:37,102 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296609,296622] [2022-11-03 02:40:37,102 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296753,296766] [2022-11-03 02:40:37,103 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296896,296909] [2022-11-03 02:40:37,103 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297040,297053] [2022-11-03 02:40:37,105 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297181,297194] [2022-11-03 02:40:37,105 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297319,297332] [2022-11-03 02:40:37,106 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297477,297490] [2022-11-03 02:40:37,107 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297636,297649] [2022-11-03 02:40:37,107 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297792,297805] [2022-11-03 02:40:37,108 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297941,297954] [2022-11-03 02:40:37,108 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298093,298106] [2022-11-03 02:40:37,109 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298244,298257] [2022-11-03 02:40:37,109 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298393,298406] [2022-11-03 02:40:37,110 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298545,298558] [2022-11-03 02:40:37,110 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298693,298706] [2022-11-03 02:40:37,111 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298846,298859] [2022-11-03 02:40:37,112 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298997,299010] [2022-11-03 02:40:37,112 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299147,299160] [2022-11-03 02:40:37,113 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299294,299307] [2022-11-03 02:40:37,114 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299445,299458] [2022-11-03 02:40:37,114 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299596,299609] [2022-11-03 02:40:37,115 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299744,299757] [2022-11-03 02:40:37,115 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299910,299923] [2022-11-03 02:40:37,116 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300079,300092] [2022-11-03 02:40:37,116 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300246,300259] [2022-11-03 02:40:37,117 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300414,300427] [2022-11-03 02:40:37,117 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300564,300577] [2022-11-03 02:40:37,118 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300711,300724] [2022-11-03 02:40:37,119 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300872,300885] [2022-11-03 02:40:37,120 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[301042,301055] [2022-11-03 02:40:37,125 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[301204,301217] [2022-11-03 02:40:37,130 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:40:37,158 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:40:37,442 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[287816,287829] [2022-11-03 02:40:37,443 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[287961,287974] [2022-11-03 02:40:37,444 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288107,288120] [2022-11-03 02:40:37,445 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288272,288285] [2022-11-03 02:40:37,445 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288430,288443] [2022-11-03 02:40:37,446 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288588,288601] [2022-11-03 02:40:37,446 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288746,288759] [2022-11-03 02:40:37,447 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288906,288919] [2022-11-03 02:40:37,451 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289065,289078] [2022-11-03 02:40:37,452 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289204,289217] [2022-11-03 02:40:37,452 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289346,289359] [2022-11-03 02:40:37,453 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289495,289508] [2022-11-03 02:40:37,453 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289634,289647] [2022-11-03 02:40:37,453 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289789,289802] [2022-11-03 02:40:37,454 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289949,289962] [2022-11-03 02:40:37,454 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290100,290113] [2022-11-03 02:40:37,454 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290251,290264] [2022-11-03 02:40:37,455 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290403,290416] [2022-11-03 02:40:37,455 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290552,290565] [2022-11-03 02:40:37,455 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290700,290713] [2022-11-03 02:40:37,456 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290857,290870] [2022-11-03 02:40:37,456 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291006,291019] [2022-11-03 02:40:37,458 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291162,291175] [2022-11-03 02:40:37,458 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291315,291328] [2022-11-03 02:40:37,458 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291461,291474] [2022-11-03 02:40:37,459 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291604,291617] [2022-11-03 02:40:37,459 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291756,291769] [2022-11-03 02:40:37,460 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291902,291915] [2022-11-03 02:40:37,460 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292047,292060] [2022-11-03 02:40:37,460 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292201,292214] [2022-11-03 02:40:37,461 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292352,292365] [2022-11-03 02:40:37,461 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292507,292520] [2022-11-03 02:40:37,462 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292659,292672] [2022-11-03 02:40:37,463 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292814,292827] [2022-11-03 02:40:37,464 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292978,292991] [2022-11-03 02:40:37,464 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293134,293147] [2022-11-03 02:40:37,464 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293298,293311] [2022-11-03 02:40:37,465 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293440,293453] [2022-11-03 02:40:37,466 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293598,293611] [2022-11-03 02:40:37,466 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293765,293778] [2022-11-03 02:40:37,467 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293924,293937] [2022-11-03 02:40:37,467 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294083,294096] [2022-11-03 02:40:37,468 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294232,294245] [2022-11-03 02:40:37,469 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294379,294392] [2022-11-03 02:40:37,469 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294518,294531] [2022-11-03 02:40:37,469 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294681,294694] [2022-11-03 02:40:37,470 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294847,294860] [2022-11-03 02:40:37,470 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295011,295024] [2022-11-03 02:40:37,470 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295176,295189] [2022-11-03 02:40:37,471 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295341,295354] [2022-11-03 02:40:37,471 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295507,295520] [2022-11-03 02:40:37,472 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295672,295685] [2022-11-03 02:40:37,472 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295839,295852] [2022-11-03 02:40:37,473 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295999,296012] [2022-11-03 02:40:37,474 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296161,296174] [2022-11-03 02:40:37,475 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296320,296333] [2022-11-03 02:40:37,477 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296466,296479] [2022-11-03 02:40:37,478 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296609,296622] [2022-11-03 02:40:37,479 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296753,296766] [2022-11-03 02:40:37,479 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296896,296909] [2022-11-03 02:40:37,480 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297040,297053] [2022-11-03 02:40:37,481 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297181,297194] [2022-11-03 02:40:37,482 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297319,297332] [2022-11-03 02:40:37,482 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297477,297490] [2022-11-03 02:40:37,483 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297636,297649] [2022-11-03 02:40:37,488 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297792,297805] [2022-11-03 02:40:37,489 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297941,297954] [2022-11-03 02:40:37,489 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298093,298106] [2022-11-03 02:40:37,490 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298244,298257] [2022-11-03 02:40:37,490 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298393,298406] [2022-11-03 02:40:37,490 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298545,298558] [2022-11-03 02:40:37,495 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298693,298706] [2022-11-03 02:40:37,497 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298846,298859] [2022-11-03 02:40:37,498 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298997,299010] [2022-11-03 02:40:37,498 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299147,299160] [2022-11-03 02:40:37,498 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299294,299307] [2022-11-03 02:40:37,499 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299445,299458] [2022-11-03 02:40:37,499 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299596,299609] [2022-11-03 02:40:37,500 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299744,299757] [2022-11-03 02:40:37,501 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299910,299923] [2022-11-03 02:40:37,501 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300079,300092] [2022-11-03 02:40:37,502 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300246,300259] [2022-11-03 02:40:37,502 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300414,300427] [2022-11-03 02:40:37,503 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300564,300577] [2022-11-03 02:40:37,503 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300711,300724] [2022-11-03 02:40:37,503 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300872,300885] [2022-11-03 02:40:37,504 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[301042,301055] [2022-11-03 02:40:37,504 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[301204,301217] [2022-11-03 02:40:37,507 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:40:37,727 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:40:37,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:37 WrapperNode [2022-11-03 02:40:37,728 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:40:37,729 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:40:37,729 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:40:37,729 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:40:37,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:37" (1/1) ... [2022-11-03 02:40:37,822 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:37" (1/1) ... [2022-11-03 02:40:37,941 INFO L138 Inliner]: procedures = 516, calls = 1379, calls flagged for inlining = 239, calls inlined = 169, statements flattened = 3148 [2022-11-03 02:40:37,942 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:40:37,943 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:40:37,943 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:40:37,943 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:40:37,952 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:37" (1/1) ... [2022-11-03 02:40:37,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:37" (1/1) ... [2022-11-03 02:40:37,969 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:37" (1/1) ... [2022-11-03 02:40:37,969 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:37" (1/1) ... [2022-11-03 02:40:38,055 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:37" (1/1) ... [2022-11-03 02:40:38,082 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:37" (1/1) ... [2022-11-03 02:40:38,098 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:37" (1/1) ... [2022-11-03 02:40:38,110 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:37" (1/1) ... [2022-11-03 02:40:38,130 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:40:38,131 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:40:38,131 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:40:38,131 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:40:38,132 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:37" (1/1) ... [2022-11-03 02:40:38,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:40:38,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:40:38,159 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:40:38,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:40:38,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_97 [2022-11-03 02:40:38,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_97 [2022-11-03 02:40:38,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-11-03 02:40:38,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-11-03 02:40:38,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 02:40:38,265 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 02:40:38,265 INFO L130 BoogieDeclarations]: Found specification of procedure parport_uss720_disable_irq [2022-11-03 02:40:38,265 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_uss720_disable_irq [2022-11-03 02:40:38,265 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_async [2022-11-03 02:40:38,265 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_async [2022-11-03 02:40:38,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 02:40:38,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 02:40:38,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-03 02:40:38,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-03 02:40:38,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-03 02:40:38,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-03 02:40:38,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-11-03 02:40:38,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-11-03 02:40:38,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-11-03 02:40:38,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-11-03 02:40:38,267 INFO L130 BoogieDeclarations]: Found specification of procedure parport_uss720_read_status [2022-11-03 02:40:38,267 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_uss720_read_status [2022-11-03 02:40:38,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 02:40:38,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 02:40:38,268 INFO L130 BoogieDeclarations]: Found specification of procedure parport_uss720_read_data [2022-11-03 02:40:38,268 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_uss720_read_data [2022-11-03 02:40:38,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 02:40:38,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 02:40:38,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-11-03 02:40:38,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-11-03 02:40:38,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:40:38,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-11-03 02:40:38,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-11-03 02:40:38,269 INFO L130 BoogieDeclarations]: Found specification of procedure parport_uss720_data_reverse [2022-11-03 02:40:38,269 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_uss720_data_reverse [2022-11-03 02:40:38,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 02:40:38,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 02:40:38,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-11-03 02:40:38,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-11-03 02:40:38,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 02:40:38,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 02:40:38,270 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2022-11-03 02:40:38,270 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2022-11-03 02:40:38,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-03 02:40:38,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-03 02:40:38,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:40:38,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-11-03 02:40:38,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-11-03 02:40:38,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-03 02:40:38,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-03 02:40:38,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-11-03 02:40:38,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-11-03 02:40:38,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-03 02:40:38,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-03 02:40:38,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-11-03 02:40:38,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-11-03 02:40:38,272 INFO L130 BoogieDeclarations]: Found specification of procedure submit_async_request [2022-11-03 02:40:38,272 INFO L138 BoogieDeclarations]: Found implementation of procedure submit_async_request [2022-11-03 02:40:38,273 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-11-03 02:40:38,273 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-11-03 02:40:38,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-03 02:40:38,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-03 02:40:38,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:40:38,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:40:38,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 02:40:38,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 02:40:38,274 INFO L130 BoogieDeclarations]: Found specification of procedure change_mode [2022-11-03 02:40:38,274 INFO L138 BoogieDeclarations]: Found implementation of procedure change_mode [2022-11-03 02:40:38,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:40:38,274 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 02:40:38,274 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 02:40:38,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 02:40:38,275 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:40:38,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:40:38,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_dev_usb_put_dev [2022-11-03 02:40:38,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_dev_usb_put_dev [2022-11-03 02:40:38,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_irq_check_alloc_flags [2022-11-03 02:40:38,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_irq_check_alloc_flags [2022-11-03 02:40:38,275 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 02:40:38,276 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 02:40:38,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-11-03 02:40:38,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-11-03 02:40:38,276 INFO L130 BoogieDeclarations]: Found specification of procedure parport_generic_irq [2022-11-03 02:40:38,276 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_generic_irq [2022-11-03 02:40:38,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:40:38,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:40:38,277 INFO L130 BoogieDeclarations]: Found specification of procedure get_1284_register [2022-11-03 02:40:38,277 INFO L138 BoogieDeclarations]: Found implementation of procedure get_1284_register [2022-11-03 02:40:38,277 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-11-03 02:40:38,277 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-11-03 02:40:38,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 02:40:38,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 02:40:38,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 02:40:38,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 02:40:38,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_asynclock_of_parport_uss720_private [2022-11-03 02:40:38,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_asynclock_of_parport_uss720_private [2022-11-03 02:40:38,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-03 02:40:38,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-03 02:40:38,278 INFO L130 BoogieDeclarations]: Found specification of procedure set_1284_register [2022-11-03 02:40:38,278 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1284_register [2022-11-03 02:40:38,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-11-03 02:40:38,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-11-03 02:40:38,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-11-03 02:40:38,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-11-03 02:40:38,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:40:38,279 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 02:40:38,279 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 02:40:38,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-03 02:40:38,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-03 02:40:38,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:40:38,280 INFO L130 BoogieDeclarations]: Found specification of procedure async_complete [2022-11-03 02:40:38,280 INFO L138 BoogieDeclarations]: Found implementation of procedure async_complete [2022-11-03 02:40:38,280 INFO L130 BoogieDeclarations]: Found specification of procedure parport_uss720_read_control [2022-11-03 02:40:38,280 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_uss720_read_control [2022-11-03 02:40:38,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:40:38,281 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-03 02:40:38,281 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-03 02:40:38,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-03 02:40:38,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-03 02:40:38,281 INFO L130 BoogieDeclarations]: Found specification of procedure parport_uss720_enable_irq [2022-11-03 02:40:38,281 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_uss720_enable_irq [2022-11-03 02:40:38,282 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-11-03 02:40:38,282 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-11-03 02:40:38,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 02:40:38,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 02:40:38,282 INFO L130 BoogieDeclarations]: Found specification of procedure clear_epp_timeout [2022-11-03 02:40:38,282 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_epp_timeout [2022-11-03 02:40:38,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-03 02:40:38,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-03 02:40:38,283 INFO L130 BoogieDeclarations]: Found specification of procedure uss720_disconnect [2022-11-03 02:40:38,283 INFO L138 BoogieDeclarations]: Found implementation of procedure uss720_disconnect [2022-11-03 02:40:38,283 INFO L130 BoogieDeclarations]: Found specification of procedure parport_uss720_data_forward [2022-11-03 02:40:38,283 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_uss720_data_forward [2022-11-03 02:40:38,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2022-11-03 02:40:38,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2022-11-03 02:40:38,284 INFO L130 BoogieDeclarations]: Found specification of procedure kill_all_async_requests_priv [2022-11-03 02:40:38,284 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_all_async_requests_priv [2022-11-03 02:40:38,284 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2022-11-03 02:40:38,284 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2022-11-03 02:40:38,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-03 02:40:38,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-03 02:40:38,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-11-03 02:40:38,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-11-03 02:40:38,285 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-03 02:40:38,285 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-03 02:40:38,285 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-03 02:40:38,285 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-03 02:40:38,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-03 02:40:38,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-03 02:40:38,285 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 02:40:38,286 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 02:40:38,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:40:38,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-03 02:40:38,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-03 02:40:38,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 02:40:38,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 02:40:38,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-03 02:40:38,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-03 02:40:38,287 INFO L130 BoogieDeclarations]: Found specification of procedure kref_init [2022-11-03 02:40:38,287 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_init [2022-11-03 02:40:38,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 02:40:38,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 02:40:38,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-03 02:40:38,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-03 02:40:38,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:40:38,903 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:40:38,907 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:40:39,564 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 02:40:41,993 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:40:42,669 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:40:42,669 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 02:40:42,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:40:42 BoogieIcfgContainer [2022-11-03 02:40:42,675 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:40:42,678 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:40:42,678 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:40:42,682 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:40:42,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:40:34" (1/3) ... [2022-11-03 02:40:42,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e379d98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:40:42, skipping insertion in model container [2022-11-03 02:40:42,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:37" (2/3) ... [2022-11-03 02:40:42,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e379d98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:40:42, skipping insertion in model container [2022-11-03 02:40:42,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:40:42" (3/3) ... [2022-11-03 02:40:42,685 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i [2022-11-03 02:40:42,703 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:40:42,703 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2022-11-03 02:40:42,768 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:40:42,773 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@47e3bb6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:40:42,774 INFO L358 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2022-11-03 02:40:42,780 INFO L276 IsEmpty]: Start isEmpty. Operand has 856 states, 498 states have (on average 1.3714859437751004) internal successors, (683), 547 states have internal predecessors, (683), 251 states have call successors, (251), 74 states have call predecessors, (251), 73 states have return successors, (247), 241 states have call predecessors, (247), 247 states have call successors, (247) [2022-11-03 02:40:42,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-03 02:40:42,790 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:40:42,791 INFO L195 NwaCegarLoop]: 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] [2022-11-03 02:40:42,792 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:40:42,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:40:42,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1624588258, now seen corresponding path program 1 times [2022-11-03 02:40:42,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:40:42,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880354410] [2022-11-03 02:40:42,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:40:42,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:40:43,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:40:43,855 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 02:40:43,855 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:40:43,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880354410] [2022-11-03 02:40:43,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880354410] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:40:43,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:40:43,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:40:43,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281640479] [2022-11-03 02:40:43,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:40:43,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:40:43,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:40:43,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:40:43,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:40:43,893 INFO L87 Difference]: Start difference. First operand has 856 states, 498 states have (on average 1.3714859437751004) internal successors, (683), 547 states have internal predecessors, (683), 251 states have call successors, (251), 74 states have call predecessors, (251), 73 states have return successors, (247), 241 states have call predecessors, (247), 247 states have call successors, (247) 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) [2022-11-03 02:40:45,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:40:45,076 INFO L93 Difference]: Finished difference Result 1669 states and 2443 transitions. [2022-11-03 02:40:45,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:40:45,079 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 [2022-11-03 02:40:45,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:40:45,096 INFO L225 Difference]: With dead ends: 1669 [2022-11-03 02:40:45,096 INFO L226 Difference]: Without dead ends: 842 [2022-11-03 02:40:45,110 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:40:45,113 INFO L413 NwaCegarLoop]: 984 mSDtfsCounter, 1123 mSDsluCounter, 1142 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1125 SdHoareTripleChecker+Valid, 1968 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:40:45,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1125 Valid, 1968 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-03 02:40:45,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 842 states. [2022-11-03 02:40:45,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 842 to 842. [2022-11-03 02:40:45,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 491 states have (on average 1.2993890020366599) internal successors, (638), 536 states have internal predecessors, (638), 247 states have call successors, (247), 73 states have call predecessors, (247), 72 states have return successors, (245), 239 states have call predecessors, (245), 245 states have call successors, (245) [2022-11-03 02:40:45,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1130 transitions. [2022-11-03 02:40:45,223 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1130 transitions. Word has length 51 [2022-11-03 02:40:45,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:40:45,261 INFO L495 AbstractCegarLoop]: Abstraction has 842 states and 1130 transitions. [2022-11-03 02:40:45,261 INFO L496 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) [2022-11-03 02:40:45,266 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1130 transitions. [2022-11-03 02:40:45,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-03 02:40:45,269 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:40:45,269 INFO L195 NwaCegarLoop]: 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] [2022-11-03 02:40:45,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:40:45,269 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:40:45,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:40:45,270 INFO L85 PathProgramCache]: Analyzing trace with hash 450663329, now seen corresponding path program 1 times [2022-11-03 02:40:45,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:40:45,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3413981] [2022-11-03 02:40:45,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:40:45,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:40:45,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:40:45,619 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 02:40:45,620 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:40:45,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3413981] [2022-11-03 02:40:45,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3413981] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:40:45,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:40:45,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:40:45,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111406469] [2022-11-03 02:40:45,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:40:45,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:40:45,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:40:45,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:40:45,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:40:45,624 INFO L87 Difference]: Start difference. First operand 842 states and 1130 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) [2022-11-03 02:40:46,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:40:46,600 INFO L93 Difference]: Finished difference Result 842 states and 1130 transitions. [2022-11-03 02:40:46,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:40:46,601 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 [2022-11-03 02:40:46,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:40:46,607 INFO L225 Difference]: With dead ends: 842 [2022-11-03 02:40:46,607 INFO L226 Difference]: Without dead ends: 840 [2022-11-03 02:40:46,608 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:40:46,614 INFO L413 NwaCegarLoop]: 968 mSDtfsCounter, 1105 mSDsluCounter, 1125 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1107 SdHoareTripleChecker+Valid, 1936 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:40:46,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1107 Valid, 1936 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-03 02:40:46,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 840 states. [2022-11-03 02:40:46,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 840 to 840. [2022-11-03 02:40:46,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 840 states, 490 states have (on average 1.2979591836734694) internal successors, (636), 534 states have internal predecessors, (636), 247 states have call successors, (247), 73 states have call predecessors, (247), 72 states have return successors, (245), 239 states have call predecessors, (245), 245 states have call successors, (245) [2022-11-03 02:40:46,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 1128 transitions. [2022-11-03 02:40:46,703 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 1128 transitions. Word has length 56 [2022-11-03 02:40:46,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:40:46,704 INFO L495 AbstractCegarLoop]: Abstraction has 840 states and 1128 transitions. [2022-11-03 02:40:46,704 INFO L496 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) [2022-11-03 02:40:46,705 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 1128 transitions. [2022-11-03 02:40:46,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-03 02:40:46,713 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:40:46,714 INFO L195 NwaCegarLoop]: 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] [2022-11-03 02:40:46,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:40:46,715 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:40:46,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:40:46,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1540021681, now seen corresponding path program 1 times [2022-11-03 02:40:46,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:40:46,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172785283] [2022-11-03 02:40:46,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:40:46,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:40:46,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:40:47,152 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 02:40:47,152 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:40:47,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172785283] [2022-11-03 02:40:47,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172785283] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:40:47,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:40:47,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:40:47,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998145832] [2022-11-03 02:40:47,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:40:47,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:40:47,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:40:47,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:40:47,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:40:47,155 INFO L87 Difference]: Start difference. First operand 840 states and 1128 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) [2022-11-03 02:40:48,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:40:48,114 INFO L93 Difference]: Finished difference Result 840 states and 1128 transitions. [2022-11-03 02:40:48,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:40:48,114 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 [2022-11-03 02:40:48,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:40:48,120 INFO L225 Difference]: With dead ends: 840 [2022-11-03 02:40:48,120 INFO L226 Difference]: Without dead ends: 838 [2022-11-03 02:40:48,121 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:40:48,121 INFO L413 NwaCegarLoop]: 966 mSDtfsCounter, 1102 mSDsluCounter, 1123 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1104 SdHoareTripleChecker+Valid, 1932 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:40:48,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1104 Valid, 1932 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-03 02:40:48,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2022-11-03 02:40:48,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2022-11-03 02:40:48,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 489 states have (on average 1.296523517382413) internal successors, (634), 532 states have internal predecessors, (634), 247 states have call successors, (247), 73 states have call predecessors, (247), 72 states have return successors, (245), 239 states have call predecessors, (245), 245 states have call successors, (245) [2022-11-03 02:40:48,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1126 transitions. [2022-11-03 02:40:48,180 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1126 transitions. Word has length 61 [2022-11-03 02:40:48,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:40:48,181 INFO L495 AbstractCegarLoop]: Abstraction has 838 states and 1126 transitions. [2022-11-03 02:40:48,181 INFO L496 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) [2022-11-03 02:40:48,181 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1126 transitions. [2022-11-03 02:40:48,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-03 02:40:48,183 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:40:48,183 INFO L195 NwaCegarLoop]: 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] [2022-11-03 02:40:48,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:40:48,183 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:40:48,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:40:48,184 INFO L85 PathProgramCache]: Analyzing trace with hash 264493375, now seen corresponding path program 1 times [2022-11-03 02:40:48,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:40:48,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191103841] [2022-11-03 02:40:48,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:40:48,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:40:48,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:40:48,573 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 02:40:48,574 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:40:48,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191103841] [2022-11-03 02:40:48,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191103841] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:40:48,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:40:48,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:40:48,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871455026] [2022-11-03 02:40:48,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:40:48,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:40:48,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:40:48,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:40:48,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:40:48,577 INFO L87 Difference]: Start difference. First operand 838 states and 1126 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) [2022-11-03 02:40:49,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:40:49,520 INFO L93 Difference]: Finished difference Result 838 states and 1126 transitions. [2022-11-03 02:40:49,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:40:49,521 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 [2022-11-03 02:40:49,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:40:49,527 INFO L225 Difference]: With dead ends: 838 [2022-11-03 02:40:49,527 INFO L226 Difference]: Without dead ends: 836 [2022-11-03 02:40:49,528 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:40:49,529 INFO L413 NwaCegarLoop]: 964 mSDtfsCounter, 1099 mSDsluCounter, 1121 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1101 SdHoareTripleChecker+Valid, 1928 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:40:49,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1101 Valid, 1928 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-03 02:40:49,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2022-11-03 02:40:49,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 836. [2022-11-03 02:40:49,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 836 states, 488 states have (on average 1.2950819672131149) internal successors, (632), 530 states have internal predecessors, (632), 247 states have call successors, (247), 73 states have call predecessors, (247), 72 states have return successors, (245), 239 states have call predecessors, (245), 245 states have call successors, (245) [2022-11-03 02:40:49,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 1124 transitions. [2022-11-03 02:40:49,611 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 1124 transitions. Word has length 66 [2022-11-03 02:40:49,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:40:49,612 INFO L495 AbstractCegarLoop]: Abstraction has 836 states and 1124 transitions. [2022-11-03 02:40:49,612 INFO L496 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) [2022-11-03 02:40:49,612 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 1124 transitions. [2022-11-03 02:40:49,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-03 02:40:49,614 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:40:49,614 INFO L195 NwaCegarLoop]: 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] [2022-11-03 02:40:49,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:40:49,614 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:40:49,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:40:49,615 INFO L85 PathProgramCache]: Analyzing trace with hash 788577020, now seen corresponding path program 1 times [2022-11-03 02:40:49,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:40:49,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398275617] [2022-11-03 02:40:49,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:40:49,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:40:49,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:40:49,967 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 02:40:49,968 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:40:49,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398275617] [2022-11-03 02:40:49,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398275617] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:40:49,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:40:49,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:40:49,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677503890] [2022-11-03 02:40:49,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:40:49,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:40:49,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:40:49,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:40:49,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:40:49,972 INFO L87 Difference]: Start difference. First operand 836 states and 1124 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) [2022-11-03 02:40:50,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:40:50,987 INFO L93 Difference]: Finished difference Result 836 states and 1124 transitions. [2022-11-03 02:40:50,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:40:50,988 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 [2022-11-03 02:40:50,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:40:50,993 INFO L225 Difference]: With dead ends: 836 [2022-11-03 02:40:50,993 INFO L226 Difference]: Without dead ends: 834 [2022-11-03 02:40:50,993 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:40:50,994 INFO L413 NwaCegarLoop]: 962 mSDtfsCounter, 1096 mSDsluCounter, 1119 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1098 SdHoareTripleChecker+Valid, 1924 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:40:50,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1098 Valid, 1924 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-03 02:40:50,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2022-11-03 02:40:51,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 834. [2022-11-03 02:40:51,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 487 states have (on average 1.2936344969199178) internal successors, (630), 528 states have internal predecessors, (630), 247 states have call successors, (247), 73 states have call predecessors, (247), 72 states have return successors, (245), 239 states have call predecessors, (245), 245 states have call successors, (245) [2022-11-03 02:40:51,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1122 transitions. [2022-11-03 02:40:51,056 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1122 transitions. Word has length 71 [2022-11-03 02:40:51,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:40:51,057 INFO L495 AbstractCegarLoop]: Abstraction has 834 states and 1122 transitions. [2022-11-03 02:40:51,057 INFO L496 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) [2022-11-03 02:40:51,057 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1122 transitions. [2022-11-03 02:40:51,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-03 02:40:51,058 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:40:51,059 INFO L195 NwaCegarLoop]: 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] [2022-11-03 02:40:51,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:40:51,059 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:40:51,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:40:51,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1537468308, now seen corresponding path program 1 times [2022-11-03 02:40:51,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:40:51,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961068942] [2022-11-03 02:40:51,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:40:51,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:40:51,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:40:51,331 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 02:40:51,331 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:40:51,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961068942] [2022-11-03 02:40:51,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961068942] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:40:51,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:40:51,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:40:51,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091066113] [2022-11-03 02:40:51,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:40:51,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:40:51,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:40:51,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:40:51,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:40:51,334 INFO L87 Difference]: Start difference. First operand 834 states and 1122 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) [2022-11-03 02:40:52,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:40:52,431 INFO L93 Difference]: Finished difference Result 834 states and 1122 transitions. [2022-11-03 02:40:52,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:40:52,432 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 [2022-11-03 02:40:52,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:40:52,437 INFO L225 Difference]: With dead ends: 834 [2022-11-03 02:40:52,437 INFO L226 Difference]: Without dead ends: 832 [2022-11-03 02:40:52,438 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:40:52,438 INFO L413 NwaCegarLoop]: 960 mSDtfsCounter, 1093 mSDsluCounter, 1117 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1095 SdHoareTripleChecker+Valid, 1920 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:40:52,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1095 Valid, 1920 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-03 02:40:52,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2022-11-03 02:40:52,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 832. [2022-11-03 02:40:52,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 832 states, 486 states have (on average 1.2921810699588476) internal successors, (628), 526 states have internal predecessors, (628), 247 states have call successors, (247), 73 states have call predecessors, (247), 72 states have return successors, (245), 239 states have call predecessors, (245), 245 states have call successors, (245) [2022-11-03 02:40:52,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1120 transitions. [2022-11-03 02:40:52,541 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1120 transitions. Word has length 76 [2022-11-03 02:40:52,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:40:52,541 INFO L495 AbstractCegarLoop]: Abstraction has 832 states and 1120 transitions. [2022-11-03 02:40:52,542 INFO L496 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) [2022-11-03 02:40:52,542 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1120 transitions. [2022-11-03 02:40:52,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-03 02:40:52,543 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:40:52,543 INFO L195 NwaCegarLoop]: 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] [2022-11-03 02:40:52,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:40:52,544 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:40:52,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:40:52,545 INFO L85 PathProgramCache]: Analyzing trace with hash 530054546, now seen corresponding path program 1 times [2022-11-03 02:40:52,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:40:52,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285407236] [2022-11-03 02:40:52,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:40:52,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:40:52,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:40:52,831 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 02:40:52,831 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:40:52,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285407236] [2022-11-03 02:40:52,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285407236] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:40:52,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:40:52,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:40:52,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314243596] [2022-11-03 02:40:52,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:40:52,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:40:52,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:40:52,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:40:52,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:40:52,834 INFO L87 Difference]: Start difference. First operand 832 states and 1120 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) [2022-11-03 02:40:53,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:40:53,832 INFO L93 Difference]: Finished difference Result 832 states and 1120 transitions. [2022-11-03 02:40:53,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:40:53,832 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 [2022-11-03 02:40:53,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:40:53,838 INFO L225 Difference]: With dead ends: 832 [2022-11-03 02:40:53,838 INFO L226 Difference]: Without dead ends: 830 [2022-11-03 02:40:53,839 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:40:53,839 INFO L413 NwaCegarLoop]: 958 mSDtfsCounter, 1090 mSDsluCounter, 1115 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1092 SdHoareTripleChecker+Valid, 1916 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:40:53,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1092 Valid, 1916 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-03 02:40:53,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2022-11-03 02:40:53,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 830. [2022-11-03 02:40:53,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 830 states, 485 states have (on average 1.2907216494845362) internal successors, (626), 524 states have internal predecessors, (626), 247 states have call successors, (247), 73 states have call predecessors, (247), 72 states have return successors, (245), 239 states have call predecessors, (245), 245 states have call successors, (245) [2022-11-03 02:40:53,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1118 transitions. [2022-11-03 02:40:53,910 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1118 transitions. Word has length 81 [2022-11-03 02:40:53,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:40:53,911 INFO L495 AbstractCegarLoop]: Abstraction has 830 states and 1118 transitions. [2022-11-03 02:40:53,911 INFO L496 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) [2022-11-03 02:40:53,911 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1118 transitions. [2022-11-03 02:40:53,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-03 02:40:53,913 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:40:53,913 INFO L195 NwaCegarLoop]: 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] [2022-11-03 02:40:53,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 02:40:53,914 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:40:53,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:40:53,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1740157934, now seen corresponding path program 1 times [2022-11-03 02:40:53,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:40:53,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455226018] [2022-11-03 02:40:53,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:40:53,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:40:53,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:40:54,196 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 02:40:54,196 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:40:54,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455226018] [2022-11-03 02:40:54,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455226018] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:40:54,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:40:54,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:40:54,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585191720] [2022-11-03 02:40:54,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:40:54,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:40:54,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:40:54,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:40:54,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:40:54,199 INFO L87 Difference]: Start difference. First operand 830 states and 1118 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) [2022-11-03 02:40:55,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:40:55,672 INFO L93 Difference]: Finished difference Result 1598 states and 2221 transitions. [2022-11-03 02:40:55,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:40:55,673 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 [2022-11-03 02:40:55,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:40:55,684 INFO L225 Difference]: With dead ends: 1598 [2022-11-03 02:40:55,684 INFO L226 Difference]: Without dead ends: 1596 [2022-11-03 02:40:55,685 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:40:55,686 INFO L413 NwaCegarLoop]: 1229 mSDtfsCounter, 1084 mSDsluCounter, 2507 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1086 SdHoareTripleChecker+Valid, 3416 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:40:55,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1086 Valid, 3416 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-03 02:40:55,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1596 states. [2022-11-03 02:40:55,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1596 to 1474. [2022-11-03 02:40:55,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1474 states, 873 states have (on average 1.2989690721649485) internal successors, (1134), 922 states have internal predecessors, (1134), 443 states have call successors, (443), 133 states have call predecessors, (443), 132 states have return successors, (520), 429 states have call predecessors, (520), 441 states have call successors, (520) [2022-11-03 02:40:55,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2097 transitions. [2022-11-03 02:40:55,831 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2097 transitions. Word has length 86 [2022-11-03 02:40:55,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:40:55,835 INFO L495 AbstractCegarLoop]: Abstraction has 1474 states and 2097 transitions. [2022-11-03 02:40:55,835 INFO L496 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) [2022-11-03 02:40:55,836 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2097 transitions. [2022-11-03 02:40:55,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-03 02:40:55,838 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:40:55,839 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 02:40:55,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 02:40:55,839 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:40:55,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:40:55,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1658266663, now seen corresponding path program 1 times [2022-11-03 02:40:55,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:40:55,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643877612] [2022-11-03 02:40:55,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:40:55,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:40:55,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:40:56,714 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-11-03 02:40:56,714 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:40:56,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643877612] [2022-11-03 02:40:56,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643877612] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:40:56,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:40:56,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:40:56,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899676445] [2022-11-03 02:40:56,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:40:56,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:40:56,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:40:56,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:40:56,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:40:56,718 INFO L87 Difference]: Start difference. First operand 1474 states and 2097 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 02:40:59,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:40:59,380 INFO L93 Difference]: Finished difference Result 1474 states and 2097 transitions. [2022-11-03 02:40:59,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:40:59,381 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 97 [2022-11-03 02:40:59,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:40:59,391 INFO L225 Difference]: With dead ends: 1474 [2022-11-03 02:40:59,391 INFO L226 Difference]: Without dead ends: 1472 [2022-11-03 02:40:59,392 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:40:59,393 INFO L413 NwaCegarLoop]: 957 mSDtfsCounter, 1070 mSDsluCounter, 2844 mSDsCounter, 0 mSdLazyCounter, 1124 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1073 SdHoareTripleChecker+Valid, 3335 SdHoareTripleChecker+Invalid, 1125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:40:59,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1073 Valid, 3335 Invalid, 1125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1124 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-03 02:40:59,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1472 states. [2022-11-03 02:40:59,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1472 to 1472. [2022-11-03 02:40:59,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 872 states have (on average 1.2970183486238531) internal successors, (1131), 920 states have internal predecessors, (1131), 443 states have call successors, (443), 133 states have call predecessors, (443), 132 states have return successors, (520), 429 states have call predecessors, (520), 441 states have call successors, (520) [2022-11-03 02:40:59,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 2094 transitions. [2022-11-03 02:40:59,576 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 2094 transitions. Word has length 97 [2022-11-03 02:40:59,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:40:59,577 INFO L495 AbstractCegarLoop]: Abstraction has 1472 states and 2094 transitions. [2022-11-03 02:40:59,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 02:40:59,578 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 2094 transitions. [2022-11-03 02:40:59,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-03 02:40:59,579 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:40:59,579 INFO L195 NwaCegarLoop]: 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] [2022-11-03 02:40:59,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 02:40:59,580 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:40:59,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:40:59,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1549348171, now seen corresponding path program 1 times [2022-11-03 02:40:59,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:40:59,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35200701] [2022-11-03 02:40:59,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:40:59,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:40:59,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:40:59,841 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 02:40:59,841 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:40:59,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35200701] [2022-11-03 02:40:59,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35200701] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:40:59,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:40:59,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:40:59,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048555605] [2022-11-03 02:40:59,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:40:59,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:40:59,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:40:59,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:40:59,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:40:59,844 INFO L87 Difference]: Start difference. First operand 1472 states and 2094 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) [2022-11-03 02:41:00,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:41:00,992 INFO L93 Difference]: Finished difference Result 1472 states and 2094 transitions. [2022-11-03 02:41:00,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:41:00,993 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 [2022-11-03 02:41:00,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:41:01,002 INFO L225 Difference]: With dead ends: 1472 [2022-11-03 02:41:01,002 INFO L226 Difference]: Without dead ends: 1470 [2022-11-03 02:41:01,003 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:41:01,004 INFO L413 NwaCegarLoop]: 954 mSDtfsCounter, 1083 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1085 SdHoareTripleChecker+Valid, 1908 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:41:01,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1085 Valid, 1908 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-03 02:41:01,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1470 states. [2022-11-03 02:41:01,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1470 to 1470. [2022-11-03 02:41:01,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1470 states, 871 states have (on average 1.2950631458094144) internal successors, (1128), 918 states have internal predecessors, (1128), 443 states have call successors, (443), 133 states have call predecessors, (443), 132 states have return successors, (520), 429 states have call predecessors, (520), 441 states have call successors, (520) [2022-11-03 02:41:01,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 2091 transitions. [2022-11-03 02:41:01,210 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 2091 transitions. Word has length 88 [2022-11-03 02:41:01,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:41:01,211 INFO L495 AbstractCegarLoop]: Abstraction has 1470 states and 2091 transitions. [2022-11-03 02:41:01,211 INFO L496 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) [2022-11-03 02:41:01,211 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 2091 transitions. [2022-11-03 02:41:01,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-03 02:41:01,213 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:41:01,213 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 02:41:01,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-03 02:41:01,214 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:41:01,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:41:01,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1513193806, now seen corresponding path program 1 times [2022-11-03 02:41:01,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:41:01,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752587835] [2022-11-03 02:41:01,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:41:01,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:41:01,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:41:01,727 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-11-03 02:41:01,728 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:41:01,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752587835] [2022-11-03 02:41:01,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752587835] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:41:01,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:41:01,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:41:01,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980225802] [2022-11-03 02:41:01,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:41:01,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:41:01,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:41:01,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:41:01,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:41:01,730 INFO L87 Difference]: Start difference. First operand 1470 states and 2091 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-03 02:41:03,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:41:03,834 INFO L93 Difference]: Finished difference Result 2885 states and 4234 transitions. [2022-11-03 02:41:03,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:41:03,835 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) Word has length 98 [2022-11-03 02:41:03,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:41:03,844 INFO L225 Difference]: With dead ends: 2885 [2022-11-03 02:41:03,844 INFO L226 Difference]: Without dead ends: 1482 [2022-11-03 02:41:03,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:41:03,853 INFO L413 NwaCegarLoop]: 966 mSDtfsCounter, 2 mSDsluCounter, 3356 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3849 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:41:03,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3849 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-03 02:41:03,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1482 states. [2022-11-03 02:41:04,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1482 to 1478. [2022-11-03 02:41:04,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1478 states, 877 states have (on average 1.2930444697833523) internal successors, (1134), 924 states have internal predecessors, (1134), 443 states have call successors, (443), 133 states have call predecessors, (443), 134 states have return successors, (524), 431 states have call predecessors, (524), 441 states have call successors, (524) [2022-11-03 02:41:04,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1478 states to 1478 states and 2101 transitions. [2022-11-03 02:41:04,028 INFO L78 Accepts]: Start accepts. Automaton has 1478 states and 2101 transitions. Word has length 98 [2022-11-03 02:41:04,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:41:04,029 INFO L495 AbstractCegarLoop]: Abstraction has 1478 states and 2101 transitions. [2022-11-03 02:41:04,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-03 02:41:04,029 INFO L276 IsEmpty]: Start isEmpty. Operand 1478 states and 2101 transitions. [2022-11-03 02:41:04,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-03 02:41:04,034 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:41:04,034 INFO L195 NwaCegarLoop]: 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] [2022-11-03 02:41:04,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-03 02:41:04,035 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:41:04,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:41:04,035 INFO L85 PathProgramCache]: Analyzing trace with hash -760372180, now seen corresponding path program 1 times [2022-11-03 02:41:04,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:41:04,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026458304] [2022-11-03 02:41:04,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:41:04,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:41:04,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:41:04,324 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 02:41:04,325 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:41:04,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026458304] [2022-11-03 02:41:04,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026458304] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:41:04,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:41:04,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:41:04,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732303656] [2022-11-03 02:41:04,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:41:04,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:41:04,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:41:04,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:41:04,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:41:04,327 INFO L87 Difference]: Start difference. First operand 1478 states and 2101 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) [2022-11-03 02:41:05,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:41:05,426 INFO L93 Difference]: Finished difference Result 1478 states and 2101 transitions. [2022-11-03 02:41:05,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:41:05,427 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 [2022-11-03 02:41:05,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:41:05,437 INFO L225 Difference]: With dead ends: 1478 [2022-11-03 02:41:05,437 INFO L226 Difference]: Without dead ends: 1476 [2022-11-03 02:41:05,438 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:41:05,439 INFO L413 NwaCegarLoop]: 952 mSDtfsCounter, 1082 mSDsluCounter, 1109 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1084 SdHoareTripleChecker+Valid, 1904 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:41:05,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1084 Valid, 1904 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-03 02:41:05,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1476 states. [2022-11-03 02:41:05,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1476 to 1476. [2022-11-03 02:41:05,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1476 states, 876 states have (on average 1.2922374429223744) internal successors, (1132), 922 states have internal predecessors, (1132), 443 states have call successors, (443), 133 states have call predecessors, (443), 134 states have return successors, (524), 431 states have call predecessors, (524), 441 states have call successors, (524) [2022-11-03 02:41:05,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1476 states to 1476 states and 2099 transitions. [2022-11-03 02:41:05,678 INFO L78 Accepts]: Start accepts. Automaton has 1476 states and 2099 transitions. Word has length 93 [2022-11-03 02:41:05,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:41:05,679 INFO L495 AbstractCegarLoop]: Abstraction has 1476 states and 2099 transitions. [2022-11-03 02:41:05,679 INFO L496 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) [2022-11-03 02:41:05,679 INFO L276 IsEmpty]: Start isEmpty. Operand 1476 states and 2099 transitions. [2022-11-03 02:41:05,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-03 02:41:05,681 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:41:05,682 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 02:41:05,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-03 02:41:05,682 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:41:05,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:41:05,683 INFO L85 PathProgramCache]: Analyzing trace with hash 997812776, now seen corresponding path program 1 times [2022-11-03 02:41:05,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:41:05,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598447283] [2022-11-03 02:41:05,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:41:05,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:41:05,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:41:05,899 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-11-03 02:41:05,899 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:41:05,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598447283] [2022-11-03 02:41:05,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598447283] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:41:05,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:41:05,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:41:05,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754384135] [2022-11-03 02:41:05,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:41:05,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:41:05,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:41:05,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:41:05,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:41:05,902 INFO L87 Difference]: Start difference. First operand 1476 states and 2099 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-03 02:41:06,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:41:06,785 INFO L93 Difference]: Finished difference Result 2908 states and 4385 transitions. [2022-11-03 02:41:06,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:41:06,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 103 [2022-11-03 02:41:06,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:41:06,799 INFO L225 Difference]: With dead ends: 2908 [2022-11-03 02:41:06,799 INFO L226 Difference]: Without dead ends: 1470 [2022-11-03 02:41:06,809 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:41:06,810 INFO L413 NwaCegarLoop]: 948 mSDtfsCounter, 1062 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1062 SdHoareTripleChecker+Valid, 948 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:41:06,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1062 Valid, 948 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-03 02:41:06,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1470 states. [2022-11-03 02:41:07,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1470 to 1470. [2022-11-03 02:41:07,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1470 states, 871 states have (on average 1.2893226176808266) internal successors, (1123), 916 states have internal predecessors, (1123), 443 states have call successors, (443), 133 states have call predecessors, (443), 134 states have return successors, (524), 431 states have call predecessors, (524), 441 states have call successors, (524) [2022-11-03 02:41:07,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 2090 transitions. [2022-11-03 02:41:07,042 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 2090 transitions. Word has length 103 [2022-11-03 02:41:07,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:41:07,043 INFO L495 AbstractCegarLoop]: Abstraction has 1470 states and 2090 transitions. [2022-11-03 02:41:07,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-03 02:41:07,043 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 2090 transitions. [2022-11-03 02:41:07,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-11-03 02:41:07,046 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:41:07,046 INFO L195 NwaCegarLoop]: 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] [2022-11-03 02:41:07,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-03 02:41:07,046 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_usb_dev_usb_put_devErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:41:07,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:41:07,047 INFO L85 PathProgramCache]: Analyzing trace with hash -752290044, now seen corresponding path program 1 times [2022-11-03 02:41:07,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:41:07,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095369044] [2022-11-03 02:41:07,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:41:07,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:41:07,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:41:09,121 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-11-03 02:41:09,121 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:41:09,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095369044] [2022-11-03 02:41:09,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095369044] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:41:09,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:41:09,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 02:41:09,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951284485] [2022-11-03 02:41:09,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:41:09,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 02:41:09,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:41:09,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 02:41:09,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:41:09,123 INFO L87 Difference]: Start difference. First operand 1470 states and 2090 transitions. Second operand has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 4 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-03 02:41:16,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:41:16,474 INFO L93 Difference]: Finished difference Result 2885 states and 4141 transitions. [2022-11-03 02:41:16,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-03 02:41:16,476 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 4 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 125 [2022-11-03 02:41:16,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:41:16,493 INFO L225 Difference]: With dead ends: 2885 [2022-11-03 02:41:16,493 INFO L226 Difference]: Without dead ends: 2883 [2022-11-03 02:41:16,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-03 02:41:16,496 INFO L413 NwaCegarLoop]: 1341 mSDtfsCounter, 1108 mSDsluCounter, 6137 mSDsCounter, 0 mSdLazyCounter, 3785 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1173 SdHoareTripleChecker+Valid, 6431 SdHoareTripleChecker+Invalid, 3797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 3785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:41:16,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1173 Valid, 6431 Invalid, 3797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 3785 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2022-11-03 02:41:16,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2883 states. [2022-11-03 02:41:16,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2883 to 2554. [2022-11-03 02:41:16,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2554 states, 1533 states have (on average 1.3007175472928898) internal successors, (1994), 1600 states have internal predecessors, (1994), 755 states have call successors, (755), 240 states have call predecessors, (755), 244 states have return successors, (911), 731 states have call predecessors, (911), 753 states have call successors, (911) [2022-11-03 02:41:16,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2554 states to 2554 states and 3660 transitions. [2022-11-03 02:41:16,935 INFO L78 Accepts]: Start accepts. Automaton has 2554 states and 3660 transitions. Word has length 125 [2022-11-03 02:41:16,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:41:16,936 INFO L495 AbstractCegarLoop]: Abstraction has 2554 states and 3660 transitions. [2022-11-03 02:41:16,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 4 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-03 02:41:16,937 INFO L276 IsEmpty]: Start isEmpty. Operand 2554 states and 3660 transitions. [2022-11-03 02:41:16,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-03 02:41:16,940 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:41:16,940 INFO L195 NwaCegarLoop]: 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] [2022-11-03 02:41:16,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-03 02:41:16,941 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:41:16,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:41:16,943 INFO L85 PathProgramCache]: Analyzing trace with hash 11081953, now seen corresponding path program 1 times [2022-11-03 02:41:16,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:41:16,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630614312] [2022-11-03 02:41:16,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:41:16,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:41:17,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:41:17,303 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 02:41:17,304 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:41:17,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630614312] [2022-11-03 02:41:17,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630614312] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:41:17,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:41:17,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:41:17,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420489077] [2022-11-03 02:41:17,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:41:17,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:41:17,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:41:17,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:41:17,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:41:17,306 INFO L87 Difference]: Start difference. First operand 2554 states and 3660 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) [2022-11-03 02:41:18,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:41:18,655 INFO L93 Difference]: Finished difference Result 2554 states and 3660 transitions. [2022-11-03 02:41:18,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:41:18,656 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 [2022-11-03 02:41:18,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:41:18,671 INFO L225 Difference]: With dead ends: 2554 [2022-11-03 02:41:18,672 INFO L226 Difference]: Without dead ends: 2552 [2022-11-03 02:41:18,675 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:41:18,676 INFO L413 NwaCegarLoop]: 945 mSDtfsCounter, 1074 mSDsluCounter, 1102 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1076 SdHoareTripleChecker+Valid, 1890 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:41:18,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1076 Valid, 1890 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-03 02:41:18,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2552 states. [2022-11-03 02:41:19,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2552 to 2552. [2022-11-03 02:41:19,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2552 states, 1532 states have (on average 1.3002610966057442) internal successors, (1992), 1598 states have internal predecessors, (1992), 755 states have call successors, (755), 240 states have call predecessors, (755), 244 states have return successors, (911), 731 states have call predecessors, (911), 753 states have call successors, (911) [2022-11-03 02:41:19,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2552 states to 2552 states and 3658 transitions. [2022-11-03 02:41:19,064 INFO L78 Accepts]: Start accepts. Automaton has 2552 states and 3658 transitions. Word has length 98 [2022-11-03 02:41:19,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:41:19,066 INFO L495 AbstractCegarLoop]: Abstraction has 2552 states and 3658 transitions. [2022-11-03 02:41:19,066 INFO L496 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) [2022-11-03 02:41:19,067 INFO L276 IsEmpty]: Start isEmpty. Operand 2552 states and 3658 transitions. [2022-11-03 02:41:19,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-03 02:41:19,070 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:41:19,071 INFO L195 NwaCegarLoop]: 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] [2022-11-03 02:41:19,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-03 02:41:19,071 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_usb_dev_usb_put_devErr1ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:41:19,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:41:19,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1396084697, now seen corresponding path program 1 times [2022-11-03 02:41:19,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:41:19,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124098906] [2022-11-03 02:41:19,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:41:19,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:41:19,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:41:20,897 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-11-03 02:41:20,897 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:41:20,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124098906] [2022-11-03 02:41:20,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124098906] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:41:20,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:41:20,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 02:41:20,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629506] [2022-11-03 02:41:20,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:41:20,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 02:41:20,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:41:20,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 02:41:20,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:41:20,899 INFO L87 Difference]: Start difference. First operand 2552 states and 3658 transitions. Second operand has 9 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 4 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-03 02:41:29,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:41:29,974 INFO L93 Difference]: Finished difference Result 4081 states and 5880 transitions. [2022-11-03 02:41:29,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-03 02:41:29,975 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 4 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 127 [2022-11-03 02:41:29,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:41:30,000 INFO L225 Difference]: With dead ends: 4081 [2022-11-03 02:41:30,000 INFO L226 Difference]: Without dead ends: 4079 [2022-11-03 02:41:30,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2022-11-03 02:41:30,004 INFO L413 NwaCegarLoop]: 1411 mSDtfsCounter, 1170 mSDsluCounter, 6372 mSDsCounter, 0 mSdLazyCounter, 3974 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1235 SdHoareTripleChecker+Valid, 6696 SdHoareTripleChecker+Invalid, 3988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 3974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:41:30,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1235 Valid, 6696 Invalid, 3988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 3974 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2022-11-03 02:41:30,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4079 states. [2022-11-03 02:41:30,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4079 to 3697. [2022-11-03 02:41:30,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3697 states, 2230 states have (on average 1.3071748878923768) internal successors, (2915), 2315 states have internal predecessors, (2915), 1095 states have call successors, (1095), 345 states have call predecessors, (1095), 351 states have return successors, (1328), 1062 states have call predecessors, (1328), 1093 states have call successors, (1328) [2022-11-03 02:41:30,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3697 states to 3697 states and 5338 transitions. [2022-11-03 02:41:30,683 INFO L78 Accepts]: Start accepts. Automaton has 3697 states and 5338 transitions. Word has length 127 [2022-11-03 02:41:30,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:41:30,684 INFO L495 AbstractCegarLoop]: Abstraction has 3697 states and 5338 transitions. [2022-11-03 02:41:30,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 4 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-03 02:41:30,684 INFO L276 IsEmpty]: Start isEmpty. Operand 3697 states and 5338 transitions. [2022-11-03 02:41:30,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-03 02:41:30,687 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:41:30,688 INFO L195 NwaCegarLoop]: 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] [2022-11-03 02:41:30,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-03 02:41:30,688 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:41:30,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:41:30,689 INFO L85 PathProgramCache]: Analyzing trace with hash -2057622700, now seen corresponding path program 1 times [2022-11-03 02:41:30,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:41:30,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905282998] [2022-11-03 02:41:30,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:41:30,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:41:30,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:41:30,987 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 02:41:30,988 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:41:30,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905282998] [2022-11-03 02:41:30,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905282998] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:41:30,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:41:30,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:41:30,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434138035] [2022-11-03 02:41:30,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:41:30,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:41:30,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:41:30,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:41:30,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:41:30,990 INFO L87 Difference]: Start difference. First operand 3697 states and 5338 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) [2022-11-03 02:41:32,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:41:32,209 INFO L93 Difference]: Finished difference Result 3697 states and 5338 transitions. [2022-11-03 02:41:32,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:41:32,210 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 [2022-11-03 02:41:32,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:41:32,266 INFO L225 Difference]: With dead ends: 3697 [2022-11-03 02:41:32,267 INFO L226 Difference]: Without dead ends: 3695 [2022-11-03 02:41:32,269 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:41:32,269 INFO L413 NwaCegarLoop]: 943 mSDtfsCounter, 1071 mSDsluCounter, 1100 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1073 SdHoareTripleChecker+Valid, 1886 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:41:32,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1073 Valid, 1886 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-03 02:41:32,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3695 states. [2022-11-03 02:41:32,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3695 to 3695. [2022-11-03 02:41:32,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3695 states, 2229 states have (on average 1.306864064602961) internal successors, (2913), 2313 states have internal predecessors, (2913), 1095 states have call successors, (1095), 345 states have call predecessors, (1095), 351 states have return successors, (1328), 1062 states have call predecessors, (1328), 1093 states have call successors, (1328) [2022-11-03 02:41:32,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3695 states to 3695 states and 5336 transitions. [2022-11-03 02:41:32,771 INFO L78 Accepts]: Start accepts. Automaton has 3695 states and 5336 transitions. Word has length 103 [2022-11-03 02:41:32,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:41:32,771 INFO L495 AbstractCegarLoop]: Abstraction has 3695 states and 5336 transitions. [2022-11-03 02:41:32,772 INFO L496 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) [2022-11-03 02:41:32,772 INFO L276 IsEmpty]: Start isEmpty. Operand 3695 states and 5336 transitions. [2022-11-03 02:41:32,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-03 02:41:32,776 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:41:32,776 INFO L195 NwaCegarLoop]: 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] [2022-11-03 02:41:32,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-03 02:41:32,777 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:41:32,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:41:32,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1191793742, now seen corresponding path program 1 times [2022-11-03 02:41:32,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:41:32,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692133752] [2022-11-03 02:41:32,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:41:32,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:41:32,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:41:32,998 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-11-03 02:41:32,999 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:41:32,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692133752] [2022-11-03 02:41:32,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692133752] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:41:32,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:41:32,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:41:33,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519777577] [2022-11-03 02:41:33,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:41:33,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:41:33,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:41:33,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:41:33,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:41:33,002 INFO L87 Difference]: Start difference. First operand 3695 states and 5336 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, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-03 02:41:34,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:41:34,160 INFO L93 Difference]: Finished difference Result 6210 states and 8954 transitions. [2022-11-03 02:41:34,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:41:34,161 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, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 130 [2022-11-03 02:41:34,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:41:34,179 INFO L225 Difference]: With dead ends: 6210 [2022-11-03 02:41:34,179 INFO L226 Difference]: Without dead ends: 3687 [2022-11-03 02:41:34,192 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:41:34,193 INFO L413 NwaCegarLoop]: 939 mSDtfsCounter, 1087 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1087 SdHoareTripleChecker+Valid, 939 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:41:34,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1087 Valid, 939 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-03 02:41:34,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3687 states. [2022-11-03 02:41:34,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3687 to 3687. [2022-11-03 02:41:34,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3687 states, 2222 states have (on average 1.3051305130513051) internal successors, (2900), 2305 states have internal predecessors, (2900), 1095 states have call successors, (1095), 345 states have call predecessors, (1095), 351 states have return successors, (1328), 1062 states have call predecessors, (1328), 1093 states have call successors, (1328) [2022-11-03 02:41:34,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3687 states to 3687 states and 5323 transitions. [2022-11-03 02:41:34,631 INFO L78 Accepts]: Start accepts. Automaton has 3687 states and 5323 transitions. Word has length 130 [2022-11-03 02:41:34,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:41:34,632 INFO L495 AbstractCegarLoop]: Abstraction has 3687 states and 5323 transitions. [2022-11-03 02:41:34,632 INFO L496 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, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-03 02:41:34,632 INFO L276 IsEmpty]: Start isEmpty. Operand 3687 states and 5323 transitions. [2022-11-03 02:41:34,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-03 02:41:34,635 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:41:34,636 INFO L195 NwaCegarLoop]: 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] [2022-11-03 02:41:34,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-03 02:41:34,636 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:41:34,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:41:34,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1808024643, now seen corresponding path program 1 times [2022-11-03 02:41:34,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:41:34,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404351127] [2022-11-03 02:41:34,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:41:34,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:41:34,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:41:34,873 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 02:41:34,874 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:41:34,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404351127] [2022-11-03 02:41:34,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404351127] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:41:34,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:41:34,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:41:34,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497455705] [2022-11-03 02:41:34,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:41:34,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:41:34,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:41:34,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:41:34,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:41:34,877 INFO L87 Difference]: Start difference. First operand 3687 states and 5323 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) [2022-11-03 02:41:36,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:41:36,254 INFO L93 Difference]: Finished difference Result 3687 states and 5323 transitions. [2022-11-03 02:41:36,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:41:36,261 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 [2022-11-03 02:41:36,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:41:36,311 INFO L225 Difference]: With dead ends: 3687 [2022-11-03 02:41:36,311 INFO L226 Difference]: Without dead ends: 3685 [2022-11-03 02:41:36,313 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:41:36,314 INFO L413 NwaCegarLoop]: 936 mSDtfsCounter, 1063 mSDsluCounter, 1093 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1065 SdHoareTripleChecker+Valid, 1872 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:41:36,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1065 Valid, 1872 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-03 02:41:36,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3685 states. [2022-11-03 02:41:36,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3685 to 3685. [2022-11-03 02:41:36,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3685 states, 2221 states have (on average 1.304817649707339) internal successors, (2898), 2303 states have internal predecessors, (2898), 1095 states have call successors, (1095), 345 states have call predecessors, (1095), 351 states have return successors, (1328), 1062 states have call predecessors, (1328), 1093 states have call successors, (1328) [2022-11-03 02:41:36,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3685 states to 3685 states and 5321 transitions. [2022-11-03 02:41:37,000 INFO L78 Accepts]: Start accepts. Automaton has 3685 states and 5321 transitions. Word has length 108 [2022-11-03 02:41:37,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:41:37,000 INFO L495 AbstractCegarLoop]: Abstraction has 3685 states and 5321 transitions. [2022-11-03 02:41:37,000 INFO L496 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) [2022-11-03 02:41:37,001 INFO L276 IsEmpty]: Start isEmpty. Operand 3685 states and 5321 transitions. [2022-11-03 02:41:37,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-03 02:41:37,004 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:41:37,005 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:41:37,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-03 02:41:37,005 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:41:37,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:41:37,006 INFO L85 PathProgramCache]: Analyzing trace with hash 551635978, now seen corresponding path program 1 times [2022-11-03 02:41:37,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:41:37,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359208050] [2022-11-03 02:41:37,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:41:37,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:41:37,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:41:37,276 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2022-11-03 02:41:37,276 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:41:37,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359208050] [2022-11-03 02:41:37,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359208050] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:41:37,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687372356] [2022-11-03 02:41:37,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:41:37,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:41:37,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:41:37,279 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:41:37,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 02:41:38,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:41:38,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 2080 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 02:41:38,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:41:38,234 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-11-03 02:41:38,234 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:41:38,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1687372356] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:41:38,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:41:38,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2022-11-03 02:41:38,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585285536] [2022-11-03 02:41:38,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:41:38,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:41:38,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:41:38,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:41:38,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:41:38,237 INFO L87 Difference]: Start difference. First operand 3685 states and 5321 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-03 02:41:39,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:41:39,231 INFO L93 Difference]: Finished difference Result 6195 states and 8925 transitions. [2022-11-03 02:41:39,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:41:39,241 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 135 [2022-11-03 02:41:39,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:41:39,258 INFO L225 Difference]: With dead ends: 6195 [2022-11-03 02:41:39,259 INFO L226 Difference]: Without dead ends: 3691 [2022-11-03 02:41:39,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:41:39,273 INFO L413 NwaCegarLoop]: 944 mSDtfsCounter, 1032 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1032 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:41:39,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1032 Valid, 994 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 02:41:39,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3691 states. [2022-11-03 02:41:39,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3691 to 3691. [2022-11-03 02:41:39,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3691 states, 2221 states have (on average 1.3021161638901395) internal successors, (2892), 2302 states have internal predecessors, (2892), 1098 states have call successors, (1098), 349 states have call predecessors, (1098), 355 states have return successors, (1331), 1065 states have call predecessors, (1331), 1096 states have call successors, (1331) [2022-11-03 02:41:39,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3691 states to 3691 states and 5321 transitions. [2022-11-03 02:41:39,699 INFO L78 Accepts]: Start accepts. Automaton has 3691 states and 5321 transitions. Word has length 135 [2022-11-03 02:41:39,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:41:39,700 INFO L495 AbstractCegarLoop]: Abstraction has 3691 states and 5321 transitions. [2022-11-03 02:41:39,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-03 02:41:39,700 INFO L276 IsEmpty]: Start isEmpty. Operand 3691 states and 5321 transitions. [2022-11-03 02:41:39,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-03 02:41:39,703 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:41:39,703 INFO L195 NwaCegarLoop]: 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] [2022-11-03 02:41:39,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 02:41:39,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:41:39,929 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:41:39,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:41:39,929 INFO L85 PathProgramCache]: Analyzing trace with hash -134362141, now seen corresponding path program 1 times [2022-11-03 02:41:39,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:41:39,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189343966] [2022-11-03 02:41:39,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:41:39,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:41:39,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:41:40,228 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 02:41:40,229 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:41:40,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189343966] [2022-11-03 02:41:40,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189343966] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:41:40,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:41:40,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:41:40,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153655527] [2022-11-03 02:41:40,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:41:40,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:41:40,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:41:40,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:41:40,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:41:40,233 INFO L87 Difference]: Start difference. First operand 3691 states and 5321 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) [2022-11-03 02:41:41,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:41:41,543 INFO L93 Difference]: Finished difference Result 3691 states and 5321 transitions. [2022-11-03 02:41:41,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:41:41,544 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 [2022-11-03 02:41:41,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:41:41,560 INFO L225 Difference]: With dead ends: 3691 [2022-11-03 02:41:41,560 INFO L226 Difference]: Without dead ends: 3689 [2022-11-03 02:41:41,563 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:41:41,563 INFO L413 NwaCegarLoop]: 929 mSDtfsCounter, 1055 mSDsluCounter, 1086 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1057 SdHoareTripleChecker+Valid, 1858 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:41:41,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1057 Valid, 1858 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-03 02:41:41,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3689 states. [2022-11-03 02:41:42,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3689 to 3689. [2022-11-03 02:41:42,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3689 states, 2220 states have (on average 1.3018018018018018) internal successors, (2890), 2300 states have internal predecessors, (2890), 1098 states have call successors, (1098), 349 states have call predecessors, (1098), 355 states have return successors, (1331), 1065 states have call predecessors, (1331), 1096 states have call successors, (1331) [2022-11-03 02:41:42,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3689 states to 3689 states and 5319 transitions. [2022-11-03 02:41:42,132 INFO L78 Accepts]: Start accepts. Automaton has 3689 states and 5319 transitions. Word has length 113 [2022-11-03 02:41:42,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:41:42,132 INFO L495 AbstractCegarLoop]: Abstraction has 3689 states and 5319 transitions. [2022-11-03 02:41:42,133 INFO L496 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) [2022-11-03 02:41:42,133 INFO L276 IsEmpty]: Start isEmpty. Operand 3689 states and 5319 transitions. [2022-11-03 02:41:42,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-03 02:41:42,136 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:41:42,137 INFO L195 NwaCegarLoop]: 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] [2022-11-03 02:41:42,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-03 02:41:42,137 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:41:42,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:41:42,138 INFO L85 PathProgramCache]: Analyzing trace with hash -503006849, now seen corresponding path program 1 times [2022-11-03 02:41:42,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:41:42,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807957472] [2022-11-03 02:41:42,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:41:42,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:41:42,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:41:42,411 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 02:41:42,411 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:41:42,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807957472] [2022-11-03 02:41:42,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807957472] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:41:42,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:41:42,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:41:42,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134781417] [2022-11-03 02:41:42,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:41:42,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:41:42,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:41:42,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:41:42,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:41:42,414 INFO L87 Difference]: Start difference. First operand 3689 states and 5319 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) [2022-11-03 02:41:44,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:41:44,040 INFO L93 Difference]: Finished difference Result 3689 states and 5319 transitions. [2022-11-03 02:41:44,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:41:44,041 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 [2022-11-03 02:41:44,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:41:44,056 INFO L225 Difference]: With dead ends: 3689 [2022-11-03 02:41:44,057 INFO L226 Difference]: Without dead ends: 3687 [2022-11-03 02:41:44,059 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:41:44,061 INFO L413 NwaCegarLoop]: 927 mSDtfsCounter, 1052 mSDsluCounter, 1084 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1054 SdHoareTripleChecker+Valid, 1854 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:41:44,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1054 Valid, 1854 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-03 02:41:44,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3687 states. [2022-11-03 02:41:44,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3687 to 3687. [2022-11-03 02:41:44,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3687 states, 2219 states have (on average 1.3014871563767463) internal successors, (2888), 2298 states have internal predecessors, (2888), 1098 states have call successors, (1098), 349 states have call predecessors, (1098), 355 states have return successors, (1331), 1065 states have call predecessors, (1331), 1096 states have call successors, (1331) [2022-11-03 02:41:44,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3687 states to 3687 states and 5317 transitions. [2022-11-03 02:41:44,621 INFO L78 Accepts]: Start accepts. Automaton has 3687 states and 5317 transitions. Word has length 118 [2022-11-03 02:41:44,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:41:44,622 INFO L495 AbstractCegarLoop]: Abstraction has 3687 states and 5317 transitions. [2022-11-03 02:41:44,622 INFO L496 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) [2022-11-03 02:41:44,623 INFO L276 IsEmpty]: Start isEmpty. Operand 3687 states and 5317 transitions. [2022-11-03 02:41:44,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-03 02:41:44,626 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:41:44,626 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2022-11-03 02:41:44,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-03 02:41:44,627 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_usb_dev_usb_put_devErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:41:44,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:41:44,628 INFO L85 PathProgramCache]: Analyzing trace with hash 896250763, now seen corresponding path program 1 times [2022-11-03 02:41:44,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:41:44,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649155882] [2022-11-03 02:41:44,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:41:44,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:41:44,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:41:45,161 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-11-03 02:41:45,161 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:41:45,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649155882] [2022-11-03 02:41:45,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649155882] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:41:45,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:41:45,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:41:45,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904364161] [2022-11-03 02:41:45,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:41:45,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:41:45,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:41:45,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:41:45,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:41:45,164 INFO L87 Difference]: Start difference. First operand 3687 states and 5317 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-03 02:41:47,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:41:47,641 INFO L93 Difference]: Finished difference Result 7265 states and 11246 transitions. [2022-11-03 02:41:47,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:41:47,642 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 120 [2022-11-03 02:41:47,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:41:47,662 INFO L225 Difference]: With dead ends: 7265 [2022-11-03 02:41:47,662 INFO L226 Difference]: Without dead ends: 3711 [2022-11-03 02:41:47,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:41:47,686 INFO L413 NwaCegarLoop]: 943 mSDtfsCounter, 2 mSDsluCounter, 3290 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3759 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:41:47,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3759 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-03 02:41:47,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3711 states. [2022-11-03 02:41:48,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3711 to 3699. [2022-11-03 02:41:48,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3699 states, 2231 states have (on average 1.2998655311519498) internal successors, (2900), 2304 states have internal predecessors, (2900), 1098 states have call successors, (1098), 349 states have call predecessors, (1098), 355 states have return successors, (1331), 1071 states have call predecessors, (1331), 1096 states have call successors, (1331) [2022-11-03 02:41:48,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3699 states to 3699 states and 5329 transitions. [2022-11-03 02:41:48,277 INFO L78 Accepts]: Start accepts. Automaton has 3699 states and 5329 transitions. Word has length 120 [2022-11-03 02:41:48,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:41:48,278 INFO L495 AbstractCegarLoop]: Abstraction has 3699 states and 5329 transitions. [2022-11-03 02:41:48,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-03 02:41:48,278 INFO L276 IsEmpty]: Start isEmpty. Operand 3699 states and 5329 transitions. [2022-11-03 02:41:48,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-03 02:41:48,282 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:41:48,282 INFO L195 NwaCegarLoop]: 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] [2022-11-03 02:41:48,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-03 02:41:48,283 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:41:48,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:41:48,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1346151852, now seen corresponding path program 1 times [2022-11-03 02:41:48,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:41:48,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243208723] [2022-11-03 02:41:48,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:41:48,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:41:48,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:41:48,660 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 02:41:48,661 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:41:48,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243208723] [2022-11-03 02:41:48,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243208723] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:41:48,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:41:48,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:41:48,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908649369] [2022-11-03 02:41:48,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:41:48,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:41:48,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:41:48,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:41:48,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:41:48,664 INFO L87 Difference]: Start difference. First operand 3699 states and 5329 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) [2022-11-03 02:41:50,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:41:50,084 INFO L93 Difference]: Finished difference Result 3699 states and 5329 transitions. [2022-11-03 02:41:50,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:41:50,085 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 [2022-11-03 02:41:50,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:41:50,100 INFO L225 Difference]: With dead ends: 3699 [2022-11-03 02:41:50,100 INFO L226 Difference]: Without dead ends: 3697 [2022-11-03 02:41:50,103 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:41:50,104 INFO L413 NwaCegarLoop]: 925 mSDtfsCounter, 1049 mSDsluCounter, 1082 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1051 SdHoareTripleChecker+Valid, 1850 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:41:50,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1051 Valid, 1850 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-03 02:41:50,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3697 states. [2022-11-03 02:41:50,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3697 to 3697. [2022-11-03 02:41:50,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3697 states, 2230 states have (on average 1.2995515695067266) internal successors, (2898), 2302 states have internal predecessors, (2898), 1098 states have call successors, (1098), 349 states have call predecessors, (1098), 355 states have return successors, (1331), 1071 states have call predecessors, (1331), 1096 states have call successors, (1331) [2022-11-03 02:41:50,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3697 states to 3697 states and 5327 transitions. [2022-11-03 02:41:50,860 INFO L78 Accepts]: Start accepts. Automaton has 3697 states and 5327 transitions. Word has length 123 [2022-11-03 02:41:50,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:41:50,861 INFO L495 AbstractCegarLoop]: Abstraction has 3697 states and 5327 transitions. [2022-11-03 02:41:50,861 INFO L496 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) [2022-11-03 02:41:50,861 INFO L276 IsEmpty]: Start isEmpty. Operand 3697 states and 5327 transitions. [2022-11-03 02:41:50,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-03 02:41:50,865 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:41:50,865 INFO L195 NwaCegarLoop]: 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] [2022-11-03 02:41:50,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-03 02:41:50,866 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:41:50,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:41:50,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1202773907, now seen corresponding path program 1 times [2022-11-03 02:41:50,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:41:50,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264149901] [2022-11-03 02:41:50,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:41:50,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:41:50,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:41:51,203 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 02:41:51,203 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:41:51,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264149901] [2022-11-03 02:41:51,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264149901] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:41:51,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:41:51,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:41:51,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7576357] [2022-11-03 02:41:51,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:41:51,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:41:51,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:41:51,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:41:51,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:41:51,206 INFO L87 Difference]: Start difference. First operand 3697 states and 5327 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) [2022-11-03 02:41:52,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:41:52,673 INFO L93 Difference]: Finished difference Result 3697 states and 5327 transitions. [2022-11-03 02:41:52,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:41:52,674 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 [2022-11-03 02:41:52,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:41:52,686 INFO L225 Difference]: With dead ends: 3697 [2022-11-03 02:41:52,687 INFO L226 Difference]: Without dead ends: 3695 [2022-11-03 02:41:52,689 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:41:52,689 INFO L413 NwaCegarLoop]: 923 mSDtfsCounter, 1046 mSDsluCounter, 1080 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1048 SdHoareTripleChecker+Valid, 1846 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:41:52,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1048 Valid, 1846 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-03 02:41:52,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3695 states. [2022-11-03 02:41:53,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3695 to 3695. [2022-11-03 02:41:53,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3695 states, 2229 states have (on average 1.2992373261552266) internal successors, (2896), 2300 states have internal predecessors, (2896), 1098 states have call successors, (1098), 349 states have call predecessors, (1098), 355 states have return successors, (1331), 1071 states have call predecessors, (1331), 1096 states have call successors, (1331) [2022-11-03 02:41:53,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3695 states to 3695 states and 5325 transitions. [2022-11-03 02:41:53,285 INFO L78 Accepts]: Start accepts. Automaton has 3695 states and 5325 transitions. Word has length 128 [2022-11-03 02:41:53,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:41:53,286 INFO L495 AbstractCegarLoop]: Abstraction has 3695 states and 5325 transitions. [2022-11-03 02:41:53,286 INFO L496 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) [2022-11-03 02:41:53,286 INFO L276 IsEmpty]: Start isEmpty. Operand 3695 states and 5325 transitions. [2022-11-03 02:41:53,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-03 02:41:53,290 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:41:53,291 INFO L195 NwaCegarLoop]: 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] [2022-11-03 02:41:53,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-03 02:41:53,291 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:41:53,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:41:53,292 INFO L85 PathProgramCache]: Analyzing trace with hash -265399719, now seen corresponding path program 1 times [2022-11-03 02:41:53,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:41:53,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930579662] [2022-11-03 02:41:53,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:41:53,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:41:53,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:41:53,589 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 02:41:53,589 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:41:53,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930579662] [2022-11-03 02:41:53,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930579662] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:41:53,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:41:53,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:41:53,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528760575] [2022-11-03 02:41:53,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:41:53,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:41:53,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:41:53,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:41:53,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:41:53,592 INFO L87 Difference]: Start difference. First operand 3695 states and 5325 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) [2022-11-03 02:41:55,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:41:55,317 INFO L93 Difference]: Finished difference Result 3695 states and 5325 transitions. [2022-11-03 02:41:55,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:41:55,318 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 [2022-11-03 02:41:55,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:41:55,328 INFO L225 Difference]: With dead ends: 3695 [2022-11-03 02:41:55,328 INFO L226 Difference]: Without dead ends: 3693 [2022-11-03 02:41:55,330 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:41:55,331 INFO L413 NwaCegarLoop]: 921 mSDtfsCounter, 1043 mSDsluCounter, 1078 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1045 SdHoareTripleChecker+Valid, 1842 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:41:55,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1045 Valid, 1842 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-03 02:41:55,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3693 states. [2022-11-03 02:41:55,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3693 to 3693. [2022-11-03 02:41:55,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3693 states, 2228 states have (on average 1.2989228007181328) internal successors, (2894), 2298 states have internal predecessors, (2894), 1098 states have call successors, (1098), 349 states have call predecessors, (1098), 355 states have return successors, (1331), 1071 states have call predecessors, (1331), 1096 states have call successors, (1331) [2022-11-03 02:41:55,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3693 states to 3693 states and 5323 transitions. [2022-11-03 02:41:55,978 INFO L78 Accepts]: Start accepts. Automaton has 3693 states and 5323 transitions. Word has length 133 [2022-11-03 02:41:55,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:41:55,978 INFO L495 AbstractCegarLoop]: Abstraction has 3693 states and 5323 transitions. [2022-11-03 02:41:55,979 INFO L496 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) [2022-11-03 02:41:55,979 INFO L276 IsEmpty]: Start isEmpty. Operand 3693 states and 5323 transitions. [2022-11-03 02:41:55,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-11-03 02:41:55,984 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:41:55,985 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1] [2022-11-03 02:41:55,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-03 02:41:55,985 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_linux_usb_dev_usb_put_devErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:41:55,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:41:55,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1364641953, now seen corresponding path program 1 times [2022-11-03 02:41:55,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:41:55,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143934668] [2022-11-03 02:41:55,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:41:55,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:41:56,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:41:57,951 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2022-11-03 02:41:57,951 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:41:57,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143934668] [2022-11-03 02:41:57,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143934668] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:41:57,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:41:57,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 02:41:57,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643131405] [2022-11-03 02:41:57,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:41:57,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 02:41:57,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:41:57,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 02:41:57,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:41:57,955 INFO L87 Difference]: Start difference. First operand 3693 states and 5323 transitions. Second operand has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 4 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-03 02:42:11,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:42:11,921 INFO L93 Difference]: Finished difference Result 4009 states and 5788 transitions. [2022-11-03 02:42:11,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-03 02:42:11,923 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 4 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 166 [2022-11-03 02:42:11,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:42:11,934 INFO L225 Difference]: With dead ends: 4009 [2022-11-03 02:42:11,935 INFO L226 Difference]: Without dead ends: 4007 [2022-11-03 02:42:11,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-03 02:42:11,937 INFO L413 NwaCegarLoop]: 1390 mSDtfsCounter, 1070 mSDsluCounter, 6561 mSDsCounter, 0 mSdLazyCounter, 3926 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1133 SdHoareTripleChecker+Valid, 6797 SdHoareTripleChecker+Invalid, 3934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 3926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:42:11,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1133 Valid, 6797 Invalid, 3934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 3926 Invalid, 0 Unknown, 0 Unchecked, 12.9s Time] [2022-11-03 02:42:11,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4007 states. [2022-11-03 02:42:12,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4007 to 3700. [2022-11-03 02:42:12,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3700 states, 2233 states have (on average 1.2987012987012987) internal successors, (2900), 2304 states have internal predecessors, (2900), 1098 states have call successors, (1098), 350 states have call predecessors, (1098), 357 states have return successors, (1333), 1071 states have call predecessors, (1333), 1096 states have call successors, (1333) [2022-11-03 02:42:12,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3700 states to 3700 states and 5331 transitions. [2022-11-03 02:42:12,589 INFO L78 Accepts]: Start accepts. Automaton has 3700 states and 5331 transitions. Word has length 166 [2022-11-03 02:42:12,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:42:12,590 INFO L495 AbstractCegarLoop]: Abstraction has 3700 states and 5331 transitions. [2022-11-03 02:42:12,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 4 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-03 02:42:12,590 INFO L276 IsEmpty]: Start isEmpty. Operand 3700 states and 5331 transitions. [2022-11-03 02:42:12,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-03 02:42:12,595 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:42:12,595 INFO L195 NwaCegarLoop]: 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] [2022-11-03 02:42:12,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-03 02:42:12,596 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:42:12,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:42:12,597 INFO L85 PathProgramCache]: Analyzing trace with hash -136929954, now seen corresponding path program 1 times [2022-11-03 02:42:12,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:42:12,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421418050] [2022-11-03 02:42:12,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:42:12,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:42:12,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:42:12,872 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 02:42:12,873 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:42:12,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421418050] [2022-11-03 02:42:12,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421418050] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:42:12,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:42:12,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:42:12,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115842421] [2022-11-03 02:42:12,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:42:12,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:42:12,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:42:12,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:42:12,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:42:12,875 INFO L87 Difference]: Start difference. First operand 3700 states and 5331 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) [2022-11-03 02:42:14,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:42:14,278 INFO L93 Difference]: Finished difference Result 3700 states and 5331 transitions. [2022-11-03 02:42:14,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:42:14,279 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 [2022-11-03 02:42:14,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:42:14,293 INFO L225 Difference]: With dead ends: 3700 [2022-11-03 02:42:14,293 INFO L226 Difference]: Without dead ends: 3698 [2022-11-03 02:42:14,296 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:42:14,296 INFO L413 NwaCegarLoop]: 919 mSDtfsCounter, 1040 mSDsluCounter, 1076 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1042 SdHoareTripleChecker+Valid, 1838 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:42:14,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1042 Valid, 1838 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-03 02:42:14,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3698 states. [2022-11-03 02:42:14,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3698 to 3698. [2022-11-03 02:42:14,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3698 states, 2232 states have (on average 1.2983870967741935) internal successors, (2898), 2302 states have internal predecessors, (2898), 1098 states have call successors, (1098), 350 states have call predecessors, (1098), 357 states have return successors, (1333), 1071 states have call predecessors, (1333), 1096 states have call successors, (1333) [2022-11-03 02:42:14,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3698 states to 3698 states and 5329 transitions. [2022-11-03 02:42:14,997 INFO L78 Accepts]: Start accepts. Automaton has 3698 states and 5329 transitions. Word has length 138 [2022-11-03 02:42:14,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:42:14,997 INFO L495 AbstractCegarLoop]: Abstraction has 3698 states and 5329 transitions. [2022-11-03 02:42:14,997 INFO L496 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) [2022-11-03 02:42:14,997 INFO L276 IsEmpty]: Start isEmpty. Operand 3698 states and 5329 transitions. [2022-11-03 02:42:15,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-11-03 02:42:15,002 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:42:15,003 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:42:15,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-03 02:42:15,006 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_linux_usb_dev_usb_put_devErr1ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:42:15,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:42:15,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1455749694, now seen corresponding path program 1 times [2022-11-03 02:42:15,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:42:15,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810654281] [2022-11-03 02:42:15,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:42:15,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:42:15,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:42:17,189 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2022-11-03 02:42:17,190 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:42:17,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810654281] [2022-11-03 02:42:17,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810654281] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:42:17,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:42:17,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 02:42:17,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414332952] [2022-11-03 02:42:17,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:42:17,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 02:42:17,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:42:17,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 02:42:17,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:42:17,192 INFO L87 Difference]: Start difference. First operand 3698 states and 5329 transitions. Second operand has 9 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 4 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-03 02:42:37,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:42:37,446 INFO L93 Difference]: Finished difference Result 5201 states and 7521 transitions. [2022-11-03 02:42:37,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-03 02:42:37,450 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 4 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 168 [2022-11-03 02:42:37,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:42:37,466 INFO L225 Difference]: With dead ends: 5201 [2022-11-03 02:42:37,466 INFO L226 Difference]: Without dead ends: 5199 [2022-11-03 02:42:37,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2022-11-03 02:42:37,470 INFO L413 NwaCegarLoop]: 1451 mSDtfsCounter, 1128 mSDsluCounter, 6785 mSDsCounter, 0 mSdLazyCounter, 4119 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1191 SdHoareTripleChecker+Valid, 7037 SdHoareTripleChecker+Invalid, 4129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 4119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:42:37,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1191 Valid, 7037 Invalid, 4129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 4119 Invalid, 0 Unknown, 0 Unchecked, 18.8s Time] [2022-11-03 02:42:37,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5199 states. [2022-11-03 02:42:38,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5199 to 4843. [2022-11-03 02:42:38,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4843 states, 2930 states have (on average 1.302730375426621) internal successors, (3817), 3017 states have internal predecessors, (3817), 1438 states have call successors, (1438), 455 states have call predecessors, (1438), 464 states have return successors, (1751), 1404 states have call predecessors, (1751), 1436 states have call successors, (1751) [2022-11-03 02:42:38,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4843 states to 4843 states and 7006 transitions. [2022-11-03 02:42:38,216 INFO L78 Accepts]: Start accepts. Automaton has 4843 states and 7006 transitions. Word has length 168 [2022-11-03 02:42:38,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:42:38,217 INFO L495 AbstractCegarLoop]: Abstraction has 4843 states and 7006 transitions. [2022-11-03 02:42:38,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 4 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-03 02:42:38,217 INFO L276 IsEmpty]: Start isEmpty. Operand 4843 states and 7006 transitions. [2022-11-03 02:42:38,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-03 02:42:38,222 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:42:38,222 INFO L195 NwaCegarLoop]: 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] [2022-11-03 02:42:38,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-03 02:42:38,223 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:42:38,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:42:38,223 INFO L85 PathProgramCache]: Analyzing trace with hash 176522482, now seen corresponding path program 1 times [2022-11-03 02:42:38,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:42:38,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419315269] [2022-11-03 02:42:38,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:42:38,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:42:38,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:42:38,534 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 02:42:38,534 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:42:38,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419315269] [2022-11-03 02:42:38,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419315269] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:42:38,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:42:38,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:42:38,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042696770] [2022-11-03 02:42:38,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:42:38,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:42:38,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:42:38,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:42:38,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:42:38,538 INFO L87 Difference]: Start difference. First operand 4843 states and 7006 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) [2022-11-03 02:42:40,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:42:40,250 INFO L93 Difference]: Finished difference Result 4843 states and 7006 transitions. [2022-11-03 02:42:40,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:42:40,250 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 [2022-11-03 02:42:40,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:42:40,263 INFO L225 Difference]: With dead ends: 4843 [2022-11-03 02:42:40,263 INFO L226 Difference]: Without dead ends: 4841 [2022-11-03 02:42:40,265 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:42:40,265 INFO L413 NwaCegarLoop]: 917 mSDtfsCounter, 1037 mSDsluCounter, 1074 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1039 SdHoareTripleChecker+Valid, 1834 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:42:40,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1039 Valid, 1834 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-03 02:42:40,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4841 states. [2022-11-03 02:42:40,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4841 to 4841. [2022-11-03 02:42:40,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4841 states, 2929 states have (on average 1.302492318197337) internal successors, (3815), 3015 states have internal predecessors, (3815), 1438 states have call successors, (1438), 455 states have call predecessors, (1438), 464 states have return successors, (1751), 1404 states have call predecessors, (1751), 1436 states have call successors, (1751) [2022-11-03 02:42:40,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4841 states to 4841 states and 7004 transitions. [2022-11-03 02:42:40,944 INFO L78 Accepts]: Start accepts. Automaton has 4841 states and 7004 transitions. Word has length 143 [2022-11-03 02:42:40,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:42:40,944 INFO L495 AbstractCegarLoop]: Abstraction has 4841 states and 7004 transitions. [2022-11-03 02:42:40,945 INFO L496 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) [2022-11-03 02:42:40,945 INFO L276 IsEmpty]: Start isEmpty. Operand 4841 states and 7004 transitions. [2022-11-03 02:42:40,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-03 02:42:40,950 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:42:40,950 INFO L195 NwaCegarLoop]: 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] [2022-11-03 02:42:40,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-03 02:42:40,951 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:42:40,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:42:40,951 INFO L85 PathProgramCache]: Analyzing trace with hash 462658569, now seen corresponding path program 1 times [2022-11-03 02:42:40,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:42:40,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574355254] [2022-11-03 02:42:40,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:42:40,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:42:41,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:42:41,267 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 02:42:41,268 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:42:41,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574355254] [2022-11-03 02:42:41,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574355254] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:42:41,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:42:41,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:42:41,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293725857] [2022-11-03 02:42:41,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:42:41,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:42:41,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:42:41,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:42:41,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:42:41,270 INFO L87 Difference]: Start difference. First operand 4841 states and 7004 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) [2022-11-03 02:42:44,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:42:44,058 INFO L93 Difference]: Finished difference Result 8424 states and 12646 transitions. [2022-11-03 02:42:44,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:42:44,059 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 [2022-11-03 02:42:44,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:42:44,091 INFO L225 Difference]: With dead ends: 8424 [2022-11-03 02:42:44,091 INFO L226 Difference]: Without dead ends: 8292 [2022-11-03 02:42:44,099 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:42:44,100 INFO L413 NwaCegarLoop]: 1261 mSDtfsCounter, 955 mSDsluCounter, 2507 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 955 SdHoareTripleChecker+Valid, 3437 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:42:44,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [955 Valid, 3437 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-03 02:42:44,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8292 states. [2022-11-03 02:42:45,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8292 to 8253. [2022-11-03 02:42:45,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8253 states, 5011 states have (on average 1.3059269606864896) internal successors, (6544), 5157 states have internal predecessors, (6544), 2417 states have call successors, (2417), 807 states have call predecessors, (2417), 815 states have return successors, (3480), 2346 states have call predecessors, (3480), 2413 states have call successors, (3480) [2022-11-03 02:42:45,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8253 states to 8253 states and 12441 transitions. [2022-11-03 02:42:45,489 INFO L78 Accepts]: Start accepts. Automaton has 8253 states and 12441 transitions. Word has length 148 [2022-11-03 02:42:45,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:42:45,490 INFO L495 AbstractCegarLoop]: Abstraction has 8253 states and 12441 transitions. [2022-11-03 02:42:45,490 INFO L496 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) [2022-11-03 02:42:45,490 INFO L276 IsEmpty]: Start isEmpty. Operand 8253 states and 12441 transitions. [2022-11-03 02:42:45,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-03 02:42:45,494 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:42:45,495 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-11-03 02:42:45,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-03 02:42:45,495 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:42:45,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:42:45,496 INFO L85 PathProgramCache]: Analyzing trace with hash -2145550843, now seen corresponding path program 1 times [2022-11-03 02:42:45,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:42:45,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000596352] [2022-11-03 02:42:45,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:42:45,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:42:45,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:42:46,669 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2022-11-03 02:42:46,669 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:42:46,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000596352] [2022-11-03 02:42:46,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000596352] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:42:46,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:42:46,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 02:42:46,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14149549] [2022-11-03 02:42:46,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:42:46,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 02:42:46,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:42:46,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 02:42:46,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:42:46,672 INFO L87 Difference]: Start difference. First operand 8253 states and 12441 transitions. Second operand has 9 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 5 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-03 02:42:51,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:42:51,489 INFO L93 Difference]: Finished difference Result 12401 states and 19113 transitions. [2022-11-03 02:42:51,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:42:51,490 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 5 states have call predecessors, (28), 3 states have call successors, (28) Word has length 187 [2022-11-03 02:42:51,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:42:51,521 INFO L225 Difference]: With dead ends: 12401 [2022-11-03 02:42:51,521 INFO L226 Difference]: Without dead ends: 9882 [2022-11-03 02:42:51,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:42:51,541 INFO L413 NwaCegarLoop]: 1270 mSDtfsCounter, 196 mSDsluCounter, 10049 mSDsCounter, 0 mSdLazyCounter, 1700 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 9894 SdHoareTripleChecker+Invalid, 1700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:42:51,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 9894 Invalid, 1700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1700 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-03 02:42:51,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9882 states. [2022-11-03 02:42:52,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9882 to 8261. [2022-11-03 02:42:52,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8261 states, 5016 states have (on average 1.305622009569378) internal successors, (6549), 5162 states have internal predecessors, (6549), 2418 states have call successors, (2418), 807 states have call predecessors, (2418), 817 states have return successors, (3484), 2349 states have call predecessors, (3484), 2414 states have call successors, (3484) [2022-11-03 02:42:52,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8261 states to 8261 states and 12451 transitions. [2022-11-03 02:42:52,836 INFO L78 Accepts]: Start accepts. Automaton has 8261 states and 12451 transitions. Word has length 187 [2022-11-03 02:42:52,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:42:52,836 INFO L495 AbstractCegarLoop]: Abstraction has 8261 states and 12451 transitions. [2022-11-03 02:42:52,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 5 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-03 02:42:52,836 INFO L276 IsEmpty]: Start isEmpty. Operand 8261 states and 12451 transitions. [2022-11-03 02:42:52,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-03 02:42:52,841 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:42:52,841 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:42:52,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-03 02:42:52,841 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:42:52,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:42:52,842 INFO L85 PathProgramCache]: Analyzing trace with hash -178112694, now seen corresponding path program 1 times [2022-11-03 02:42:52,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:42:52,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17519768] [2022-11-03 02:42:52,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:42:52,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:42:53,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:42:53,970 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2022-11-03 02:42:53,970 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:42:53,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17519768] [2022-11-03 02:42:53,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17519768] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:42:53,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:42:53,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:42:53,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811108668] [2022-11-03 02:42:53,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:42:53,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:42:53,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:42:53,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:42:53,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:42:53,973 INFO L87 Difference]: Start difference. First operand 8261 states and 12451 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-03 02:42:56,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:42:56,812 INFO L93 Difference]: Finished difference Result 8331 states and 12493 transitions. [2022-11-03 02:42:56,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:42:56,812 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 187 [2022-11-03 02:42:56,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:42:56,838 INFO L225 Difference]: With dead ends: 8331 [2022-11-03 02:42:56,839 INFO L226 Difference]: Without dead ends: 8329 [2022-11-03 02:42:56,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:42:56,843 INFO L413 NwaCegarLoop]: 914 mSDtfsCounter, 984 mSDsluCounter, 2175 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 985 SdHoareTripleChecker+Valid, 2767 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:42:56,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [985 Valid, 2767 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-03 02:42:56,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8329 states. [2022-11-03 02:42:58,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8329 to 8329. [2022-11-03 02:42:58,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8329 states, 5057 states have (on average 1.300375716828159) internal successors, (6576), 5202 states have internal predecessors, (6576), 2418 states have call successors, (2418), 835 states have call predecessors, (2418), 845 states have return successors, (3484), 2349 states have call predecessors, (3484), 2414 states have call successors, (3484) [2022-11-03 02:42:58,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8329 states to 8329 states and 12478 transitions. [2022-11-03 02:42:58,177 INFO L78 Accepts]: Start accepts. Automaton has 8329 states and 12478 transitions. Word has length 187 [2022-11-03 02:42:58,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:42:58,178 INFO L495 AbstractCegarLoop]: Abstraction has 8329 states and 12478 transitions. [2022-11-03 02:42:58,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-03 02:42:58,178 INFO L276 IsEmpty]: Start isEmpty. Operand 8329 states and 12478 transitions. [2022-11-03 02:42:58,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-11-03 02:42:58,182 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:42:58,182 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:42:58,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-03 02:42:58,183 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:42:58,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:42:58,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1873104883, now seen corresponding path program 1 times [2022-11-03 02:42:58,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:42:58,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857932295] [2022-11-03 02:42:58,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:42:58,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:42:58,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:42:58,690 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-11-03 02:42:58,690 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:42:58,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857932295] [2022-11-03 02:42:58,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857932295] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:42:58,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:42:58,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:42:58,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282573216] [2022-11-03 02:42:58,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:42:58,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:42:58,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:42:58,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:42:58,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:42:58,693 INFO L87 Difference]: Start difference. First operand 8329 states and 12478 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (35), 3 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-03 02:43:01,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:43:01,888 INFO L93 Difference]: Finished difference Result 8329 states and 12478 transitions. [2022-11-03 02:43:01,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:43:01,888 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (35), 3 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 205 [2022-11-03 02:43:01,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:43:01,914 INFO L225 Difference]: With dead ends: 8329 [2022-11-03 02:43:01,914 INFO L226 Difference]: Without dead ends: 8327 [2022-11-03 02:43:01,918 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:43:01,918 INFO L413 NwaCegarLoop]: 913 mSDtfsCounter, 30 mSDsluCounter, 3184 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 3626 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:43:01,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 3626 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-03 02:43:01,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8327 states. [2022-11-03 02:43:03,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8327 to 8327. [2022-11-03 02:43:03,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8327 states, 5056 states have (on average 1.2976661392405062) internal successors, (6561), 5200 states have internal predecessors, (6561), 2418 states have call successors, (2418), 835 states have call predecessors, (2418), 845 states have return successors, (3484), 2349 states have call predecessors, (3484), 2414 states have call successors, (3484) [2022-11-03 02:43:03,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8327 states to 8327 states and 12463 transitions. [2022-11-03 02:43:03,146 INFO L78 Accepts]: Start accepts. Automaton has 8327 states and 12463 transitions. Word has length 205 [2022-11-03 02:43:03,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:43:03,146 INFO L495 AbstractCegarLoop]: Abstraction has 8327 states and 12463 transitions. [2022-11-03 02:43:03,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (35), 3 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-03 02:43:03,147 INFO L276 IsEmpty]: Start isEmpty. Operand 8327 states and 12463 transitions. [2022-11-03 02:43:03,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-11-03 02:43:03,153 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:43:03,153 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:43:03,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-03 02:43:03,154 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_linux_usb_dev_usb_put_devErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:43:03,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:43:03,154 INFO L85 PathProgramCache]: Analyzing trace with hash 114309254, now seen corresponding path program 1 times [2022-11-03 02:43:03,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:43:03,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491714274] [2022-11-03 02:43:03,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:43:03,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:43:03,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:43:04,296 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-11-03 02:43:04,296 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:43:04,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491714274] [2022-11-03 02:43:04,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491714274] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:43:04,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:43:04,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 02:43:04,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881248204] [2022-11-03 02:43:04,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:43:04,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 02:43:04,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:43:04,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 02:43:04,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:43:04,299 INFO L87 Difference]: Start difference. First operand 8327 states and 12463 transitions. Second operand has 9 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 3 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (39), 5 states have call predecessors, (39), 3 states have call successors, (39) [2022-11-03 02:43:08,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:43:08,742 INFO L93 Difference]: Finished difference Result 13493 states and 21397 transitions. [2022-11-03 02:43:08,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:43:08,743 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 3 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (39), 5 states have call predecessors, (39), 3 states have call successors, (39) Word has length 208 [2022-11-03 02:43:08,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:43:08,781 INFO L225 Difference]: With dead ends: 13493 [2022-11-03 02:43:08,781 INFO L226 Difference]: Without dead ends: 8471 [2022-11-03 02:43:08,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:43:08,811 INFO L413 NwaCegarLoop]: 916 mSDtfsCounter, 4 mSDsluCounter, 7470 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 7300 SdHoareTripleChecker+Invalid, 1313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:43:08,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 7300 Invalid, 1313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1313 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-03 02:43:08,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8471 states. [2022-11-03 02:43:10,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8471 to 8457. [2022-11-03 02:43:10,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8457 states, 5136 states have (on average 1.2930295950155763) internal successors, (6641), 5287 states have internal predecessors, (6641), 2432 states have call successors, (2432), 835 states have call predecessors, (2432), 881 states have return successors, (3542), 2392 states have call predecessors, (3542), 2428 states have call successors, (3542) [2022-11-03 02:43:10,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8457 states to 8457 states and 12615 transitions. [2022-11-03 02:43:10,334 INFO L78 Accepts]: Start accepts. Automaton has 8457 states and 12615 transitions. Word has length 208 [2022-11-03 02:43:10,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:43:10,334 INFO L495 AbstractCegarLoop]: Abstraction has 8457 states and 12615 transitions. [2022-11-03 02:43:10,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 3 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (39), 5 states have call predecessors, (39), 3 states have call successors, (39) [2022-11-03 02:43:10,334 INFO L276 IsEmpty]: Start isEmpty. Operand 8457 states and 12615 transitions. [2022-11-03 02:43:10,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-11-03 02:43:10,342 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:43:10,342 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:43:10,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-03 02:43:10,342 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_linux_usb_dev_usb_put_devErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:43:10,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:43:10,343 INFO L85 PathProgramCache]: Analyzing trace with hash 46089099, now seen corresponding path program 1 times [2022-11-03 02:43:10,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:43:10,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827598990] [2022-11-03 02:43:10,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:43:10,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:43:10,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:43:12,108 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 6 proven. 50 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2022-11-03 02:43:12,109 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:43:12,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827598990] [2022-11-03 02:43:12,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827598990] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:43:12,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1847833827] [2022-11-03 02:43:12,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:43:12,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:43:12,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:43:12,120 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:43:12,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 02:43:13,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:43:13,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 3063 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-03 02:43:13,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:43:13,439 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2022-11-03 02:43:13,439 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:43:13,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1847833827] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:43:13,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:43:13,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [9] total 16 [2022-11-03 02:43:13,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206501083] [2022-11-03 02:43:13,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:43:13,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-03 02:43:13,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:43:13,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-03 02:43:13,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2022-11-03 02:43:13,443 INFO L87 Difference]: Start difference. First operand 8457 states and 12615 transitions. Second operand has 11 states, 8 states have (on average 11.5) internal successors, (92), 10 states have internal predecessors, (92), 6 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (38), 6 states have call predecessors, (38), 6 states have call successors, (38) [2022-11-03 02:43:19,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:43:19,857 INFO L93 Difference]: Finished difference Result 13094 states and 19748 transitions. [2022-11-03 02:43:19,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-03 02:43:19,858 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 11.5) internal successors, (92), 10 states have internal predecessors, (92), 6 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (38), 6 states have call predecessors, (38), 6 states have call successors, (38) Word has length 247 [2022-11-03 02:43:19,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:43:19,882 INFO L225 Difference]: With dead ends: 13094 [2022-11-03 02:43:19,882 INFO L226 Difference]: Without dead ends: 8460 [2022-11-03 02:43:19,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2022-11-03 02:43:19,897 INFO L413 NwaCegarLoop]: 1199 mSDtfsCounter, 675 mSDsluCounter, 11504 mSDsCounter, 0 mSdLazyCounter, 2191 mSolverCounterSat, 404 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 675 SdHoareTripleChecker+Valid, 11075 SdHoareTripleChecker+Invalid, 2595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 404 IncrementalHoareTripleChecker+Valid, 2191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:43:19,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [675 Valid, 11075 Invalid, 2595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [404 Valid, 2191 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-03 02:43:19,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8460 states. [2022-11-03 02:43:21,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8460 to 7694. [2022-11-03 02:43:21,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 4679 states have (on average 1.2910878392818979) internal successors, (6041), 4811 states have internal predecessors, (6041), 2213 states have call successors, (2213), 750 states have call predecessors, (2213), 794 states have return successors, (3199), 2183 states have call predecessors, (3199), 2209 states have call successors, (3199) [2022-11-03 02:43:21,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 11453 transitions. [2022-11-03 02:43:21,151 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 11453 transitions. Word has length 247 [2022-11-03 02:43:21,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:43:21,151 INFO L495 AbstractCegarLoop]: Abstraction has 7694 states and 11453 transitions. [2022-11-03 02:43:21,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 11.5) internal successors, (92), 10 states have internal predecessors, (92), 6 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (38), 6 states have call predecessors, (38), 6 states have call successors, (38) [2022-11-03 02:43:21,152 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 11453 transitions. [2022-11-03 02:43:21,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-11-03 02:43:21,155 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:43:21,156 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:43:21,182 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-03 02:43:21,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2022-11-03 02:43:21,357 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_linux_usb_dev_usb_put_devErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:43:21,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:43:21,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1815655414, now seen corresponding path program 1 times [2022-11-03 02:43:21,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:43:21,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730853583] [2022-11-03 02:43:21,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:43:21,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:43:21,451 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:43:21,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [731542445] [2022-11-03 02:43:21,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:43:21,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:43:21,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:43:21,453 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:43:21,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 02:43:22,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:43:22,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 2718 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-03 02:43:22,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:43:22,604 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2022-11-03 02:43:22,605 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:43:22,605 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:43:22,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730853583] [2022-11-03 02:43:22,605 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:43:22,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [731542445] [2022-11-03 02:43:22,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [731542445] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:43:22,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:43:22,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 02:43:22,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768112312] [2022-11-03 02:43:22,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:43:22,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:43:22,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:43:22,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:43:22,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:43:22,608 INFO L87 Difference]: Start difference. First operand 7694 states and 11453 transitions. Second operand has 7 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 4 states have call successors, (50), 5 states have call predecessors, (50), 2 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-03 02:43:26,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:43:26,541 INFO L93 Difference]: Finished difference Result 14811 states and 23516 transitions. [2022-11-03 02:43:26,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 02:43:26,542 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 4 states have call successors, (50), 5 states have call predecessors, (50), 2 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 231 [2022-11-03 02:43:26,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:43:26,566 INFO L225 Difference]: With dead ends: 14811 [2022-11-03 02:43:26,566 INFO L226 Difference]: Without dead ends: 8042 [2022-11-03 02:43:26,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:43:26,598 INFO L413 NwaCegarLoop]: 903 mSDtfsCounter, 20 mSDsluCounter, 5273 mSDsCounter, 0 mSdLazyCounter, 1077 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 5386 SdHoareTripleChecker+Invalid, 1098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1077 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:43:26,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 5386 Invalid, 1098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1077 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-03 02:43:26,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8042 states. [2022-11-03 02:43:27,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8042 to 8006. [2022-11-03 02:43:27,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8006 states, 4895 states have (on average 1.2831460674157302) internal successors, (6281), 5027 states have internal predecessors, (6281), 2273 states have call successors, (2273), 786 states have call predecessors, (2273), 830 states have return successors, (3315), 2255 states have call predecessors, (3315), 2269 states have call successors, (3315) [2022-11-03 02:43:27,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8006 states to 8006 states and 11869 transitions. [2022-11-03 02:43:27,920 INFO L78 Accepts]: Start accepts. Automaton has 8006 states and 11869 transitions. Word has length 231 [2022-11-03 02:43:27,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:43:27,921 INFO L495 AbstractCegarLoop]: Abstraction has 8006 states and 11869 transitions. [2022-11-03 02:43:27,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 4 states have call successors, (50), 5 states have call predecessors, (50), 2 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-03 02:43:27,921 INFO L276 IsEmpty]: Start isEmpty. Operand 8006 states and 11869 transitions. [2022-11-03 02:43:27,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-11-03 02:43:27,927 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:43:27,927 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:43:27,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 02:43:28,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2022-11-03 02:43:28,128 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting destroy_asyncErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:43:28,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:43:28,129 INFO L85 PathProgramCache]: Analyzing trace with hash -906443374, now seen corresponding path program 1 times [2022-11-03 02:43:28,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:43:28,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675683986] [2022-11-03 02:43:28,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:43:28,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:43:28,246 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:43:28,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1537447722] [2022-11-03 02:43:28,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:43:28,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:43:28,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:43:28,248 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:43:28,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 02:43:29,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:43:29,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 2541 conjuncts, 54 conjunts are in the unsatisfiable core [2022-11-03 02:43:29,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:43:29,499 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 96 proven. 2 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-11-03 02:43:29,501 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:43:29,880 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 6 proven. 22 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-11-03 02:43:29,880 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:43:29,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675683986] [2022-11-03 02:43:29,881 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:43:29,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537447722] [2022-11-03 02:43:29,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1537447722] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:43:29,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [881502615] [2022-11-03 02:43:29,909 INFO L159 IcfgInterpreter]: Started Sifa with 165 locations of interest [2022-11-03 02:43:29,909 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:43:29,914 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:43:29,920 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:43:29,921 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:43:31,212 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2022-11-03 02:43:31,315 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2022-11-03 02:43:31,399 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2022-11-03 02:43:31,515 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2022-11-03 02:43:31,713 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2022-11-03 02:43:31,894 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2022-11-03 02:43:32,057 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2022-11-03 02:43:32,167 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2022-11-03 02:43:32,324 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2022-11-03 02:43:32,418 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2022-11-03 02:43:32,543 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2022-11-03 02:43:32,643 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2022-11-03 02:43:32,720 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2022-11-03 02:45:38,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-03 02:45:38,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2022-11-03 02:45:38,823 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Maybe an infinite loop at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:130) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:345) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:281) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:285) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostconditionCall(PredicateTransformer.java:157) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.postCall(SymbolicTools.java:132) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:218) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:207) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-03 02:45:38,826 INFO L158 Benchmark]: Toolchain (without parser) took 304425.84ms. Allocated memory was 113.2MB in the beginning and 3.2GB in the end (delta: 3.1GB). Free memory was 83.4MB in the beginning and 1.7GB in the end (delta: -1.7GB). Peak memory consumption was 2.1GB. Max. memory is 16.1GB. [2022-11-03 02:45:38,826 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 113.2MB. Free memory is still 86.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:45:38,827 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3326.55ms. Allocated memory was 113.2MB in the beginning and 174.1MB in the end (delta: 60.8MB). Free memory was 83.0MB in the beginning and 103.8MB in the end (delta: -20.8MB). Peak memory consumption was 113.2MB. Max. memory is 16.1GB. [2022-11-03 02:45:38,827 INFO L158 Benchmark]: Boogie Procedure Inliner took 213.00ms. Allocated memory is still 174.1MB. Free memory was 103.8MB in the beginning and 80.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-03 02:45:38,827 INFO L158 Benchmark]: Boogie Preprocessor took 187.85ms. Allocated memory is still 174.1MB. Free memory was 80.7MB in the beginning and 59.5MB in the end (delta: 21.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-03 02:45:38,827 INFO L158 Benchmark]: RCFGBuilder took 4543.65ms. Allocated memory was 174.1MB in the beginning and 358.6MB in the end (delta: 184.5MB). Free memory was 58.7MB in the beginning and 148.6MB in the end (delta: -89.9MB). Peak memory consumption was 96.3MB. Max. memory is 16.1GB. [2022-11-03 02:45:38,828 INFO L158 Benchmark]: TraceAbstraction took 296147.61ms. Allocated memory was 358.6MB in the beginning and 3.2GB in the end (delta: 2.9GB). Free memory was 147.5MB in the beginning and 1.7GB in the end (delta: -1.6GB). Peak memory consumption was 1.9GB. Max. memory is 16.1GB. [2022-11-03 02:45:38,829 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 113.2MB. Free memory is still 86.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3326.55ms. Allocated memory was 113.2MB in the beginning and 174.1MB in the end (delta: 60.8MB). Free memory was 83.0MB in the beginning and 103.8MB in the end (delta: -20.8MB). Peak memory consumption was 113.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 213.00ms. Allocated memory is still 174.1MB. Free memory was 103.8MB in the beginning and 80.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 187.85ms. Allocated memory is still 174.1MB. Free memory was 80.7MB in the beginning and 59.5MB in the end (delta: 21.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * RCFGBuilder took 4543.65ms. Allocated memory was 174.1MB in the beginning and 358.6MB in the end (delta: 184.5MB). Free memory was 58.7MB in the beginning and 148.6MB in the end (delta: -89.9MB). Peak memory consumption was 96.3MB. Max. memory is 16.1GB. * TraceAbstraction took 296147.61ms. Allocated memory was 358.6MB in the beginning and 3.2GB in the end (delta: 2.9GB). Free memory was 147.5MB in the beginning and 1.7GB in the end (delta: -1.6GB). Peak memory consumption was 1.9GB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Maybe an infinite loop de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Maybe an infinite loop: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:130) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-03 02:45:39,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI --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 87fc46113f1aa6bf5cd254bff58332904e2431653df647e3a9a61cd4104d8890 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:45:41,292 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:45:41,294 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:45:41,335 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:45:41,336 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:45:41,340 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:45:41,343 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:45:41,347 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:45:41,354 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:45:41,356 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:45:41,357 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:45:41,360 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:45:41,360 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:45:41,362 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:45:41,363 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:45:41,364 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:45:41,365 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:45:41,366 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:45:41,367 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:45:41,369 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:45:41,371 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:45:41,372 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:45:41,373 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:45:41,374 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:45:41,378 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:45:41,378 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:45:41,379 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:45:41,380 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:45:41,380 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:45:41,381 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:45:41,381 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:45:41,382 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:45:41,383 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:45:41,384 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:45:41,385 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:45:41,385 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:45:41,386 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:45:41,392 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:45:41,393 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:45:41,394 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:45:41,395 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:45:41,396 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-03 02:45:41,420 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:45:41,420 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:45:41,420 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:45:41,421 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:45:41,422 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:45:41,422 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:45:41,422 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:45:41,422 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:45:41,423 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:45:41,423 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:45:41,423 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:45:41,424 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:45:41,425 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:45:41,425 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:45:41,425 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:45:41,425 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:45:41,426 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:45:41,426 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-03 02:45:41,426 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-03 02:45:41,426 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-03 02:45:41,426 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:45:41,427 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:45:41,427 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:45:41,427 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:45:41,427 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-03 02:45:41,428 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:45:41,428 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:45:41,428 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:45:41,428 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:45:41,429 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:45:41,429 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-03 02:45:41,429 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-03 02:45:41,429 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:45:41,429 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:45:41,430 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-03 02:45:41,430 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87fc46113f1aa6bf5cd254bff58332904e2431653df647e3a9a61cd4104d8890 [2022-11-03 02:45:41,748 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:45:41,773 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:45:41,776 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:45:41,777 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:45:41,778 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:45:41,779 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i [2022-11-03 02:45:41,856 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/data/8e6df802a/e510bd95734b4c5fb2cef4e71bedcaf8/FLAG0d5dd68cf [2022-11-03 02:45:42,784 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:45:42,785 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i [2022-11-03 02:45:42,836 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/data/8e6df802a/e510bd95734b4c5fb2cef4e71bedcaf8/FLAG0d5dd68cf [2022-11-03 02:45:43,272 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/data/8e6df802a/e510bd95734b4c5fb2cef4e71bedcaf8 [2022-11-03 02:45:43,275 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:45:43,276 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:45:43,280 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:45:43,281 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:45:43,284 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:45:43,285 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:45:43" (1/1) ... [2022-11-03 02:45:43,286 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fb28ee0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:45:43, skipping insertion in model container [2022-11-03 02:45:43,287 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:45:43" (1/1) ... [2022-11-03 02:45:43,294 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:45:43,463 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:45:46,200 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[287816,287829] [2022-11-03 02:45:46,203 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[287961,287974] [2022-11-03 02:45:46,204 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288107,288120] [2022-11-03 02:45:46,205 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288272,288285] [2022-11-03 02:45:46,205 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288430,288443] [2022-11-03 02:45:46,206 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288588,288601] [2022-11-03 02:45:46,207 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288746,288759] [2022-11-03 02:45:46,208 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288906,288919] [2022-11-03 02:45:46,208 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289065,289078] [2022-11-03 02:45:46,209 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289204,289217] [2022-11-03 02:45:46,210 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289346,289359] [2022-11-03 02:45:46,210 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289495,289508] [2022-11-03 02:45:46,211 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289634,289647] [2022-11-03 02:45:46,211 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289789,289802] [2022-11-03 02:45:46,212 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289949,289962] [2022-11-03 02:45:46,213 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290100,290113] [2022-11-03 02:45:46,213 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290251,290264] [2022-11-03 02:45:46,214 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290403,290416] [2022-11-03 02:45:46,215 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290552,290565] [2022-11-03 02:45:46,215 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290700,290713] [2022-11-03 02:45:46,216 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290857,290870] [2022-11-03 02:45:46,217 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291006,291019] [2022-11-03 02:45:46,217 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291162,291175] [2022-11-03 02:45:46,218 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291315,291328] [2022-11-03 02:45:46,219 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291461,291474] [2022-11-03 02:45:46,219 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291604,291617] [2022-11-03 02:45:46,220 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291756,291769] [2022-11-03 02:45:46,221 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291902,291915] [2022-11-03 02:45:46,221 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292047,292060] [2022-11-03 02:45:46,222 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292201,292214] [2022-11-03 02:45:46,223 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292352,292365] [2022-11-03 02:45:46,223 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292507,292520] [2022-11-03 02:45:46,224 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292659,292672] [2022-11-03 02:45:46,225 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292814,292827] [2022-11-03 02:45:46,226 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292978,292991] [2022-11-03 02:45:46,226 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293134,293147] [2022-11-03 02:45:46,227 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293298,293311] [2022-11-03 02:45:46,228 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293440,293453] [2022-11-03 02:45:46,228 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293598,293611] [2022-11-03 02:45:46,229 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293765,293778] [2022-11-03 02:45:46,229 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293924,293937] [2022-11-03 02:45:46,230 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294083,294096] [2022-11-03 02:45:46,231 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294232,294245] [2022-11-03 02:45:46,232 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294379,294392] [2022-11-03 02:45:46,232 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294518,294531] [2022-11-03 02:45:46,233 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294681,294694] [2022-11-03 02:45:46,234 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294847,294860] [2022-11-03 02:45:46,234 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295011,295024] [2022-11-03 02:45:46,235 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295176,295189] [2022-11-03 02:45:46,235 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295341,295354] [2022-11-03 02:45:46,236 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295507,295520] [2022-11-03 02:45:46,237 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295672,295685] [2022-11-03 02:45:46,237 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295839,295852] [2022-11-03 02:45:46,238 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295999,296012] [2022-11-03 02:45:46,239 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296161,296174] [2022-11-03 02:45:46,239 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296320,296333] [2022-11-03 02:45:46,240 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296466,296479] [2022-11-03 02:45:46,241 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296609,296622] [2022-11-03 02:45:46,241 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296753,296766] [2022-11-03 02:45:46,242 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296896,296909] [2022-11-03 02:45:46,242 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297040,297053] [2022-11-03 02:45:46,243 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297181,297194] [2022-11-03 02:45:46,244 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297319,297332] [2022-11-03 02:45:46,244 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297477,297490] [2022-11-03 02:45:46,245 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297636,297649] [2022-11-03 02:45:46,246 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297792,297805] [2022-11-03 02:45:46,246 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297941,297954] [2022-11-03 02:45:46,247 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298093,298106] [2022-11-03 02:45:46,248 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298244,298257] [2022-11-03 02:45:46,248 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298393,298406] [2022-11-03 02:45:46,249 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298545,298558] [2022-11-03 02:45:46,250 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298693,298706] [2022-11-03 02:45:46,250 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298846,298859] [2022-11-03 02:45:46,251 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298997,299010] [2022-11-03 02:45:46,252 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299147,299160] [2022-11-03 02:45:46,252 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299294,299307] [2022-11-03 02:45:46,253 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299445,299458] [2022-11-03 02:45:46,254 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299596,299609] [2022-11-03 02:45:46,254 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299744,299757] [2022-11-03 02:45:46,255 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299910,299923] [2022-11-03 02:45:46,256 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300079,300092] [2022-11-03 02:45:46,256 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300246,300259] [2022-11-03 02:45:46,257 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300414,300427] [2022-11-03 02:45:46,257 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300564,300577] [2022-11-03 02:45:46,258 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300711,300724] [2022-11-03 02:45:46,259 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300872,300885] [2022-11-03 02:45:46,259 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[301042,301055] [2022-11-03 02:45:46,260 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[301204,301217] [2022-11-03 02:45:46,264 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:45:46,294 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-03 02:45:46,361 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:45:46,649 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[287816,287829] [2022-11-03 02:45:46,649 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[287961,287974] [2022-11-03 02:45:46,651 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288107,288120] [2022-11-03 02:45:46,652 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288272,288285] [2022-11-03 02:45:46,653 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288430,288443] [2022-11-03 02:45:46,654 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288588,288601] [2022-11-03 02:45:46,655 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288746,288759] [2022-11-03 02:45:46,655 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288906,288919] [2022-11-03 02:45:46,656 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289065,289078] [2022-11-03 02:45:46,657 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289204,289217] [2022-11-03 02:45:46,658 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289346,289359] [2022-11-03 02:45:46,659 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289495,289508] [2022-11-03 02:45:46,659 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289634,289647] [2022-11-03 02:45:46,660 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289789,289802] [2022-11-03 02:45:46,660 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289949,289962] [2022-11-03 02:45:46,661 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290100,290113] [2022-11-03 02:45:46,661 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290251,290264] [2022-11-03 02:45:46,662 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290403,290416] [2022-11-03 02:45:46,662 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290552,290565] [2022-11-03 02:45:46,663 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290700,290713] [2022-11-03 02:45:46,663 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290857,290870] [2022-11-03 02:45:46,664 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291006,291019] [2022-11-03 02:45:46,665 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291162,291175] [2022-11-03 02:45:46,665 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291315,291328] [2022-11-03 02:45:46,666 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291461,291474] [2022-11-03 02:45:46,667 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291604,291617] [2022-11-03 02:45:46,668 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291756,291769] [2022-11-03 02:45:46,669 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291902,291915] [2022-11-03 02:45:46,669 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292047,292060] [2022-11-03 02:45:46,671 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292201,292214] [2022-11-03 02:45:46,671 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292352,292365] [2022-11-03 02:45:46,672 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292507,292520] [2022-11-03 02:45:46,672 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292659,292672] [2022-11-03 02:45:46,673 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292814,292827] [2022-11-03 02:45:46,674 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292978,292991] [2022-11-03 02:45:46,676 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293134,293147] [2022-11-03 02:45:46,676 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293298,293311] [2022-11-03 02:45:46,677 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293440,293453] [2022-11-03 02:45:46,677 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293598,293611] [2022-11-03 02:45:46,679 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293765,293778] [2022-11-03 02:45:46,681 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293924,293937] [2022-11-03 02:45:46,681 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294083,294096] [2022-11-03 02:45:46,682 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294232,294245] [2022-11-03 02:45:46,682 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294379,294392] [2022-11-03 02:45:46,683 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294518,294531] [2022-11-03 02:45:46,684 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294681,294694] [2022-11-03 02:45:46,684 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294847,294860] [2022-11-03 02:45:46,685 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295011,295024] [2022-11-03 02:45:46,686 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295176,295189] [2022-11-03 02:45:46,686 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295341,295354] [2022-11-03 02:45:46,687 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295507,295520] [2022-11-03 02:45:46,687 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295672,295685] [2022-11-03 02:45:46,688 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295839,295852] [2022-11-03 02:45:46,689 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295999,296012] [2022-11-03 02:45:46,689 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296161,296174] [2022-11-03 02:45:46,690 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296320,296333] [2022-11-03 02:45:46,691 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296466,296479] [2022-11-03 02:45:46,697 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296609,296622] [2022-11-03 02:45:46,701 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296753,296766] [2022-11-03 02:45:46,701 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296896,296909] [2022-11-03 02:45:46,702 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297040,297053] [2022-11-03 02:45:46,702 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297181,297194] [2022-11-03 02:45:46,703 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297319,297332] [2022-11-03 02:45:46,704 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297477,297490] [2022-11-03 02:45:46,705 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297636,297649] [2022-11-03 02:45:46,705 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297792,297805] [2022-11-03 02:45:46,706 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297941,297954] [2022-11-03 02:45:46,712 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298093,298106] [2022-11-03 02:45:46,713 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298244,298257] [2022-11-03 02:45:46,714 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298393,298406] [2022-11-03 02:45:46,714 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298545,298558] [2022-11-03 02:45:46,715 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298693,298706] [2022-11-03 02:45:46,717 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298846,298859] [2022-11-03 02:45:46,717 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298997,299010] [2022-11-03 02:45:46,718 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299147,299160] [2022-11-03 02:45:46,718 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299294,299307] [2022-11-03 02:45:46,719 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299445,299458] [2022-11-03 02:45:46,720 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299596,299609] [2022-11-03 02:45:46,722 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299744,299757] [2022-11-03 02:45:46,723 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299910,299923] [2022-11-03 02:45:46,723 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300079,300092] [2022-11-03 02:45:46,724 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300246,300259] [2022-11-03 02:45:46,725 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300414,300427] [2022-11-03 02:45:46,726 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300564,300577] [2022-11-03 02:45:46,726 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300711,300724] [2022-11-03 02:45:46,727 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300872,300885] [2022-11-03 02:45:46,727 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[301042,301055] [2022-11-03 02:45:46,728 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[301204,301217] [2022-11-03 02:45:46,730 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:45:46,761 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:45:47,069 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[287816,287829] [2022-11-03 02:45:47,070 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[287961,287974] [2022-11-03 02:45:47,070 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288107,288120] [2022-11-03 02:45:47,071 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288272,288285] [2022-11-03 02:45:47,073 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288430,288443] [2022-11-03 02:45:47,074 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288588,288601] [2022-11-03 02:45:47,074 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288746,288759] [2022-11-03 02:45:47,076 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288906,288919] [2022-11-03 02:45:47,076 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289065,289078] [2022-11-03 02:45:47,077 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289204,289217] [2022-11-03 02:45:47,077 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289346,289359] [2022-11-03 02:45:47,078 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289495,289508] [2022-11-03 02:45:47,079 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289634,289647] [2022-11-03 02:45:47,079 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289789,289802] [2022-11-03 02:45:47,080 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289949,289962] [2022-11-03 02:45:47,081 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290100,290113] [2022-11-03 02:45:47,081 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290251,290264] [2022-11-03 02:45:47,082 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290403,290416] [2022-11-03 02:45:47,082 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290552,290565] [2022-11-03 02:45:47,083 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290700,290713] [2022-11-03 02:45:47,083 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290857,290870] [2022-11-03 02:45:47,084 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291006,291019] [2022-11-03 02:45:47,084 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291162,291175] [2022-11-03 02:45:47,085 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291315,291328] [2022-11-03 02:45:47,085 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291461,291474] [2022-11-03 02:45:47,086 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291604,291617] [2022-11-03 02:45:47,088 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291756,291769] [2022-11-03 02:45:47,089 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291902,291915] [2022-11-03 02:45:47,089 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292047,292060] [2022-11-03 02:45:47,090 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292201,292214] [2022-11-03 02:45:47,090 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292352,292365] [2022-11-03 02:45:47,091 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292507,292520] [2022-11-03 02:45:47,092 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292659,292672] [2022-11-03 02:45:47,093 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292814,292827] [2022-11-03 02:45:47,093 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292978,292991] [2022-11-03 02:45:47,094 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293134,293147] [2022-11-03 02:45:47,094 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293298,293311] [2022-11-03 02:45:47,095 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293440,293453] [2022-11-03 02:45:47,096 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293598,293611] [2022-11-03 02:45:47,096 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293765,293778] [2022-11-03 02:45:47,097 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293924,293937] [2022-11-03 02:45:47,098 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294083,294096] [2022-11-03 02:45:47,098 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294232,294245] [2022-11-03 02:45:47,099 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294379,294392] [2022-11-03 02:45:47,099 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294518,294531] [2022-11-03 02:45:47,099 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294681,294694] [2022-11-03 02:45:47,100 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294847,294860] [2022-11-03 02:45:47,100 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295011,295024] [2022-11-03 02:45:47,100 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295176,295189] [2022-11-03 02:45:47,101 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295341,295354] [2022-11-03 02:45:47,101 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295507,295520] [2022-11-03 02:45:47,102 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295672,295685] [2022-11-03 02:45:47,102 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295839,295852] [2022-11-03 02:45:47,103 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295999,296012] [2022-11-03 02:45:47,103 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296161,296174] [2022-11-03 02:45:47,104 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296320,296333] [2022-11-03 02:45:47,104 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296466,296479] [2022-11-03 02:45:47,105 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296609,296622] [2022-11-03 02:45:47,105 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296753,296766] [2022-11-03 02:45:47,106 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296896,296909] [2022-11-03 02:45:47,106 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297040,297053] [2022-11-03 02:45:47,107 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297181,297194] [2022-11-03 02:45:47,107 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297319,297332] [2022-11-03 02:45:47,108 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297477,297490] [2022-11-03 02:45:47,109 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297636,297649] [2022-11-03 02:45:47,109 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297792,297805] [2022-11-03 02:45:47,110 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297941,297954] [2022-11-03 02:45:47,110 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298093,298106] [2022-11-03 02:45:47,111 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298244,298257] [2022-11-03 02:45:47,111 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298393,298406] [2022-11-03 02:45:47,112 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298545,298558] [2022-11-03 02:45:47,112 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298693,298706] [2022-11-03 02:45:47,113 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298846,298859] [2022-11-03 02:45:47,113 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298997,299010] [2022-11-03 02:45:47,113 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299147,299160] [2022-11-03 02:45:47,114 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299294,299307] [2022-11-03 02:45:47,115 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299445,299458] [2022-11-03 02:45:47,115 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299596,299609] [2022-11-03 02:45:47,116 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299744,299757] [2022-11-03 02:45:47,117 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299910,299923] [2022-11-03 02:45:47,122 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300079,300092] [2022-11-03 02:45:47,123 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300246,300259] [2022-11-03 02:45:47,124 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300414,300427] [2022-11-03 02:45:47,124 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300564,300577] [2022-11-03 02:45:47,125 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300711,300724] [2022-11-03 02:45:47,125 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300872,300885] [2022-11-03 02:45:47,126 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[301042,301055] [2022-11-03 02:45:47,126 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_0e86281e-c4bd-42a0-b068-cdf664b8fa34/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[301204,301217] [2022-11-03 02:45:47,131 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:45:47,400 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:45:47,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:45:47 WrapperNode [2022-11-03 02:45:47,401 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:45:47,402 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:45:47,402 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:45:47,404 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:45:47,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:45:47" (1/1) ... [2022-11-03 02:45:47,507 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:45:47" (1/1) ... [2022-11-03 02:45:47,671 INFO L138 Inliner]: procedures = 531, calls = 1376, calls flagged for inlining = 242, calls inlined = 172, statements flattened = 3085 [2022-11-03 02:45:47,671 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:45:47,672 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:45:47,672 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:45:47,672 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:45:47,682 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:45:47" (1/1) ... [2022-11-03 02:45:47,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:45:47" (1/1) ... [2022-11-03 02:45:47,703 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:45:47" (1/1) ... [2022-11-03 02:45:47,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:45:47" (1/1) ... [2022-11-03 02:45:47,786 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:45:47" (1/1) ... [2022-11-03 02:45:47,818 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:45:47" (1/1) ... [2022-11-03 02:45:47,846 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:45:47" (1/1) ... [2022-11-03 02:45:47,867 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:45:47" (1/1) ... [2022-11-03 02:45:47,894 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:45:47,896 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:45:47,896 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:45:47,896 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:45:47,897 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:45:47" (1/1) ... [2022-11-03 02:45:47,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:45:47,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:45:47,926 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:45:47,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:45:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_97 [2022-11-03 02:45:48,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_97 [2022-11-03 02:45:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-11-03 02:45:48,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-11-03 02:45:48,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 02:45:48,013 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 02:45:48,013 INFO L130 BoogieDeclarations]: Found specification of procedure parport_uss720_disable_irq [2022-11-03 02:45:48,013 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_uss720_disable_irq [2022-11-03 02:45:48,013 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_async [2022-11-03 02:45:48,013 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_async [2022-11-03 02:45:48,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 02:45:48,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 02:45:48,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-03 02:45:48,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-03 02:45:48,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-03 02:45:48,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-03 02:45:48,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-11-03 02:45:48,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-11-03 02:45:48,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-11-03 02:45:48,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-11-03 02:45:48,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 02:45:48,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 02:45:48,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 02:45:48,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 02:45:48,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-11-03 02:45:48,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-11-03 02:45:48,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:45:48,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-03 02:45:48,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-03 02:45:48,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-03 02:45:48,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-03 02:45:48,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-11-03 02:45:48,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-11-03 02:45:48,017 INFO L130 BoogieDeclarations]: Found specification of procedure parport_uss720_data_reverse [2022-11-03 02:45:48,017 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_uss720_data_reverse [2022-11-03 02:45:48,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-11-03 02:45:48,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-11-03 02:45:48,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 02:45:48,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 02:45:48,018 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2022-11-03 02:45:48,018 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2022-11-03 02:45:48,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-03 02:45:48,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-03 02:45:48,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-11-03 02:45:48,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-11-03 02:45:48,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-03 02:45:48,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-03 02:45:48,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-11-03 02:45:48,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-11-03 02:45:48,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-03 02:45:48,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-03 02:45:48,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-11-03 02:45:48,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-11-03 02:45:48,020 INFO L130 BoogieDeclarations]: Found specification of procedure submit_async_request [2022-11-03 02:45:48,020 INFO L138 BoogieDeclarations]: Found implementation of procedure submit_async_request [2022-11-03 02:45:48,020 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-11-03 02:45:48,020 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-11-03 02:45:48,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-03 02:45:48,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-03 02:45:48,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:45:48,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:45:48,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 02:45:48,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 02:45:48,021 INFO L130 BoogieDeclarations]: Found specification of procedure change_mode [2022-11-03 02:45:48,021 INFO L138 BoogieDeclarations]: Found implementation of procedure change_mode [2022-11-03 02:45:48,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:45:48,022 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 02:45:48,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-03 02:45:48,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-03 02:45:48,022 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 02:45:48,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 02:45:48,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-03 02:45:48,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_dev_usb_put_dev [2022-11-03 02:45:48,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_dev_usb_put_dev [2022-11-03 02:45:48,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_irq_check_alloc_flags [2022-11-03 02:45:48,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_irq_check_alloc_flags [2022-11-03 02:45:48,023 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 02:45:48,023 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 02:45:48,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-11-03 02:45:48,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-11-03 02:45:48,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-03 02:45:48,024 INFO L130 BoogieDeclarations]: Found specification of procedure parport_generic_irq [2022-11-03 02:45:48,024 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_generic_irq [2022-11-03 02:45:48,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:45:48,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:45:48,024 INFO L130 BoogieDeclarations]: Found specification of procedure get_1284_register [2022-11-03 02:45:48,025 INFO L138 BoogieDeclarations]: Found implementation of procedure get_1284_register [2022-11-03 02:45:48,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-03 02:45:48,025 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-11-03 02:45:48,025 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-11-03 02:45:48,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-03 02:45:48,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-03 02:45:48,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 02:45:48,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-03 02:45:48,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 02:45:48,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 02:45:48,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 02:45:48,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_asynclock_of_parport_uss720_private [2022-11-03 02:45:48,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_asynclock_of_parport_uss720_private [2022-11-03 02:45:48,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-03 02:45:48,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-03 02:45:48,027 INFO L130 BoogieDeclarations]: Found specification of procedure set_1284_register [2022-11-03 02:45:48,027 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1284_register [2022-11-03 02:45:48,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-11-03 02:45:48,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-11-03 02:45:48,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-11-03 02:45:48,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-11-03 02:45:48,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:45:48,028 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 02:45:48,028 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 02:45:48,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-03 02:45:48,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-03 02:45:48,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:45:48,028 INFO L130 BoogieDeclarations]: Found specification of procedure async_complete [2022-11-03 02:45:48,030 INFO L138 BoogieDeclarations]: Found implementation of procedure async_complete [2022-11-03 02:45:48,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-03 02:45:48,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-03 02:45:48,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-03 02:45:48,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:45:48,031 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-03 02:45:48,031 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-03 02:45:48,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-03 02:45:48,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-03 02:45:48,032 INFO L130 BoogieDeclarations]: Found specification of procedure parport_uss720_enable_irq [2022-11-03 02:45:48,032 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_uss720_enable_irq [2022-11-03 02:45:48,032 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-11-03 02:45:48,032 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-11-03 02:45:48,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 02:45:48,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 02:45:48,032 INFO L130 BoogieDeclarations]: Found specification of procedure clear_epp_timeout [2022-11-03 02:45:48,033 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_epp_timeout [2022-11-03 02:45:48,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-03 02:45:48,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-03 02:45:48,033 INFO L130 BoogieDeclarations]: Found specification of procedure uss720_disconnect [2022-11-03 02:45:48,033 INFO L138 BoogieDeclarations]: Found implementation of procedure uss720_disconnect [2022-11-03 02:45:48,033 INFO L130 BoogieDeclarations]: Found specification of procedure parport_uss720_data_forward [2022-11-03 02:45:48,033 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_uss720_data_forward [2022-11-03 02:45:48,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2022-11-03 02:45:48,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2022-11-03 02:45:48,034 INFO L130 BoogieDeclarations]: Found specification of procedure kill_all_async_requests_priv [2022-11-03 02:45:48,034 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_all_async_requests_priv [2022-11-03 02:45:48,034 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2022-11-03 02:45:48,034 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2022-11-03 02:45:48,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-03 02:45:48,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-03 02:45:48,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-11-03 02:45:48,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-11-03 02:45:48,035 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-03 02:45:48,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-03 02:45:48,035 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-03 02:45:48,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-03 02:45:48,036 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-11-03 02:45:48,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-11-03 02:45:48,036 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-03 02:45:48,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-03 02:45:48,036 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 02:45:48,036 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 02:45:48,036 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-03 02:45:48,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-03 02:45:48,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-03 02:45:48,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-03 02:45:48,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-03 02:45:48,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-03 02:45:48,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 02:45:48,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 02:45:48,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-03 02:45:48,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-03 02:45:48,038 INFO L130 BoogieDeclarations]: Found specification of procedure kref_init [2022-11-03 02:45:48,038 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_init [2022-11-03 02:45:48,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 02:45:48,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 02:45:48,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-03 02:45:48,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-03 02:45:48,810 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:45:48,813 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:45:51,503 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 02:46:07,039 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:46:07,054 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:46:07,054 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 02:46:07,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:46:07 BoogieIcfgContainer [2022-11-03 02:46:07,058 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:46:07,060 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:46:07,060 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:46:07,063 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:46:07,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:45:43" (1/3) ... [2022-11-03 02:46:07,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13262926 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:46:07, skipping insertion in model container [2022-11-03 02:46:07,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:45:47" (2/3) ... [2022-11-03 02:46:07,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13262926 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:46:07, skipping insertion in model container [2022-11-03 02:46:07,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:46:07" (3/3) ... [2022-11-03 02:46:07,067 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i [2022-11-03 02:46:07,086 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:46:07,086 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2022-11-03 02:46:07,158 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:46:07,164 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@32e4435, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:46:07,165 INFO L358 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2022-11-03 02:46:07,173 INFO L276 IsEmpty]: Start isEmpty. Operand has 1092 states, 743 states have (on average 1.304172274562584) internal successors, (969), 792 states have internal predecessors, (969), 245 states have call successors, (245), 71 states have call predecessors, (245), 70 states have return successors, (241), 235 states have call predecessors, (241), 241 states have call successors, (241) [2022-11-03 02:46:07,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-03 02:46:07,185 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:46:07,186 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:46:07,186 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:46:07,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:46:07,192 INFO L85 PathProgramCache]: Analyzing trace with hash -738963956, now seen corresponding path program 1 times [2022-11-03 02:46:07,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:46:07,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2057461766] [2022-11-03 02:46:07,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:46:07,209 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:46:07,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:46:07,220 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:46:07,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-03 02:46:08,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:46:08,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 808 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:46:08,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:46:08,694 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-03 02:46:08,694 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:46:08,695 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:46:08,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2057461766] [2022-11-03 02:46:08,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2057461766] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:46:08,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:46:08,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:46:08,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994008590] [2022-11-03 02:46:08,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:46:08,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:46:08,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:46:08,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:46:08,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:46:08,786 INFO L87 Difference]: Start difference. First operand has 1092 states, 743 states have (on average 1.304172274562584) internal successors, (969), 792 states have internal predecessors, (969), 245 states have call successors, (245), 71 states have call predecessors, (245), 70 states have return successors, (241), 235 states have call predecessors, (241), 241 states have call successors, (241) Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-03 02:46:09,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:46:09,151 INFO L93 Difference]: Finished difference Result 2117 states and 2955 transitions. [2022-11-03 02:46:09,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:46:09,154 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 73 [2022-11-03 02:46:09,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:46:09,187 INFO L225 Difference]: With dead ends: 2117 [2022-11-03 02:46:09,188 INFO L226 Difference]: Without dead ends: 1074 [2022-11-03 02:46:09,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:46:09,211 INFO L413 NwaCegarLoop]: 1410 mSDtfsCounter, 1356 mSDsluCounter, 1408 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1358 SdHoareTripleChecker+Valid, 2818 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:46:09,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1358 Valid, 2818 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:46:09,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2022-11-03 02:46:09,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 1074. [2022-11-03 02:46:09,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1074 states, 732 states have (on average 1.2513661202185793) internal successors, (916), 777 states have internal predecessors, (916), 241 states have call successors, (241), 70 states have call predecessors, (241), 69 states have return successors, (239), 233 states have call predecessors, (239), 239 states have call successors, (239) [2022-11-03 02:46:09,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1074 states to 1074 states and 1396 transitions. [2022-11-03 02:46:09,413 INFO L78 Accepts]: Start accepts. Automaton has 1074 states and 1396 transitions. Word has length 73 [2022-11-03 02:46:09,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:46:09,416 INFO L495 AbstractCegarLoop]: Abstraction has 1074 states and 1396 transitions. [2022-11-03 02:46:09,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-03 02:46:09,416 INFO L276 IsEmpty]: Start isEmpty. Operand 1074 states and 1396 transitions. [2022-11-03 02:46:09,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-03 02:46:09,428 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:46:09,429 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:46:09,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-03 02:46:09,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:46:09,642 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:46:09,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:46:09,643 INFO L85 PathProgramCache]: Analyzing trace with hash -506404133, now seen corresponding path program 1 times [2022-11-03 02:46:09,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:46:09,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1758571343] [2022-11-03 02:46:09,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:46:09,647 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:46:09,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:46:09,649 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:46:09,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-03 02:46:10,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:46:10,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 817 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:46:10,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:46:10,988 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-03 02:46:10,988 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:46:10,988 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:46:10,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1758571343] [2022-11-03 02:46:10,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1758571343] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:46:10,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:46:10,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:46:10,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100563716] [2022-11-03 02:46:10,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:46:10,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:46:10,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:46:10,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:46:10,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:46:10,992 INFO L87 Difference]: Start difference. First operand 1074 states and 1396 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-03 02:46:11,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:46:11,183 INFO L93 Difference]: Finished difference Result 1074 states and 1396 transitions. [2022-11-03 02:46:11,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:46:11,184 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 79 [2022-11-03 02:46:11,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:46:11,193 INFO L225 Difference]: With dead ends: 1074 [2022-11-03 02:46:11,193 INFO L226 Difference]: Without dead ends: 1072 [2022-11-03 02:46:11,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:46:11,195 INFO L413 NwaCegarLoop]: 1392 mSDtfsCounter, 1332 mSDsluCounter, 1390 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1334 SdHoareTripleChecker+Valid, 2782 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:46:11,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1334 Valid, 2782 Invalid, 2 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:46:11,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2022-11-03 02:46:11,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2022-11-03 02:46:11,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 731 states have (on average 1.250341997264022) internal successors, (914), 775 states have internal predecessors, (914), 241 states have call successors, (241), 70 states have call predecessors, (241), 69 states have return successors, (239), 233 states have call predecessors, (239), 239 states have call successors, (239) [2022-11-03 02:46:11,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1394 transitions. [2022-11-03 02:46:11,310 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1394 transitions. Word has length 79 [2022-11-03 02:46:11,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:46:11,313 INFO L495 AbstractCegarLoop]: Abstraction has 1072 states and 1394 transitions. [2022-11-03 02:46:11,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-03 02:46:11,313 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1394 transitions. [2022-11-03 02:46:11,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-03 02:46:11,319 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:46:11,319 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:46:11,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-03 02:46:11,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:46:11,533 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:46:11,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:46:11,533 INFO L85 PathProgramCache]: Analyzing trace with hash -880140557, now seen corresponding path program 1 times [2022-11-03 02:46:11,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:46:11,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1650118608] [2022-11-03 02:46:11,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:46:11,535 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:46:11,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:46:11,545 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:46:11,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-03 02:46:12,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:46:12,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 826 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:46:12,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:46:12,922 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-03 02:46:12,922 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:46:12,922 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:46:12,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1650118608] [2022-11-03 02:46:12,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1650118608] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:46:12,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:46:12,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:46:12,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068344460] [2022-11-03 02:46:12,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:46:12,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:46:12,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:46:12,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:46:12,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:46:12,924 INFO L87 Difference]: Start difference. First operand 1072 states and 1394 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-11-03 02:46:13,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:46:13,052 INFO L93 Difference]: Finished difference Result 1072 states and 1394 transitions. [2022-11-03 02:46:13,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:46:13,052 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 85 [2022-11-03 02:46:13,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:46:13,060 INFO L225 Difference]: With dead ends: 1072 [2022-11-03 02:46:13,060 INFO L226 Difference]: Without dead ends: 1070 [2022-11-03 02:46:13,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:46:13,064 INFO L413 NwaCegarLoop]: 1390 mSDtfsCounter, 1324 mSDsluCounter, 1388 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1326 SdHoareTripleChecker+Valid, 2778 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:46:13,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1326 Valid, 2778 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:46:13,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1070 states. [2022-11-03 02:46:13,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1070 to 1070. [2022-11-03 02:46:13,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1070 states, 730 states have (on average 1.2493150684931507) internal successors, (912), 773 states have internal predecessors, (912), 241 states have call successors, (241), 70 states have call predecessors, (241), 69 states have return successors, (239), 233 states have call predecessors, (239), 239 states have call successors, (239) [2022-11-03 02:46:13,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1070 states to 1070 states and 1392 transitions. [2022-11-03 02:46:13,167 INFO L78 Accepts]: Start accepts. Automaton has 1070 states and 1392 transitions. Word has length 85 [2022-11-03 02:46:13,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:46:13,170 INFO L495 AbstractCegarLoop]: Abstraction has 1070 states and 1392 transitions. [2022-11-03 02:46:13,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-11-03 02:46:13,171 INFO L276 IsEmpty]: Start isEmpty. Operand 1070 states and 1392 transitions. [2022-11-03 02:46:13,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-03 02:46:13,173 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:46:13,174 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:46:13,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-03 02:46:13,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:46:13,397 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:46:13,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:46:13,398 INFO L85 PathProgramCache]: Analyzing trace with hash 780636690, now seen corresponding path program 1 times [2022-11-03 02:46:13,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:46:13,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [455015005] [2022-11-03 02:46:13,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:46:13,400 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:46:13,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:46:13,401 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:46:13,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-03 02:46:14,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:46:14,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 835 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:46:14,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:46:14,778 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-03 02:46:14,778 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:46:14,778 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:46:14,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [455015005] [2022-11-03 02:46:14,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [455015005] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:46:14,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:46:14,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:46:14,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355734683] [2022-11-03 02:46:14,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:46:14,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:46:14,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:46:14,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:46:14,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:46:14,780 INFO L87 Difference]: Start difference. First operand 1070 states and 1392 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-11-03 02:46:14,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:46:14,922 INFO L93 Difference]: Finished difference Result 1070 states and 1392 transitions. [2022-11-03 02:46:14,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:46:14,922 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 91 [2022-11-03 02:46:14,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:46:14,931 INFO L225 Difference]: With dead ends: 1070 [2022-11-03 02:46:14,931 INFO L226 Difference]: Without dead ends: 1068 [2022-11-03 02:46:14,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:46:14,934 INFO L413 NwaCegarLoop]: 1388 mSDtfsCounter, 1316 mSDsluCounter, 1386 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1318 SdHoareTripleChecker+Valid, 2774 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:46:14,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1318 Valid, 2774 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:46:14,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2022-11-03 02:46:15,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 1068. [2022-11-03 02:46:15,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1068 states, 729 states have (on average 1.2482853223593964) internal successors, (910), 771 states have internal predecessors, (910), 241 states have call successors, (241), 70 states have call predecessors, (241), 69 states have return successors, (239), 233 states have call predecessors, (239), 239 states have call successors, (239) [2022-11-03 02:46:15,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1390 transitions. [2022-11-03 02:46:15,051 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1390 transitions. Word has length 91 [2022-11-03 02:46:15,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:46:15,051 INFO L495 AbstractCegarLoop]: Abstraction has 1068 states and 1390 transitions. [2022-11-03 02:46:15,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-11-03 02:46:15,052 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1390 transitions. [2022-11-03 02:46:15,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-03 02:46:15,059 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:46:15,060 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:46:15,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-03 02:46:15,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:46:15,277 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:46:15,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:46:15,277 INFO L85 PathProgramCache]: Analyzing trace with hash -281542144, now seen corresponding path program 1 times [2022-11-03 02:46:15,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:46:15,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [5951666] [2022-11-03 02:46:15,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:46:15,279 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:46:15,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:46:15,281 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:46:15,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-03 02:46:16,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:46:16,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 844 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:46:16,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:46:16,471 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-03 02:46:16,471 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:46:16,472 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:46:16,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [5951666] [2022-11-03 02:46:16,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [5951666] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:46:16,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:46:16,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:46:16,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327812272] [2022-11-03 02:46:16,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:46:16,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:46:16,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:46:16,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:46:16,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:46:16,474 INFO L87 Difference]: Start difference. First operand 1068 states and 1390 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-11-03 02:46:16,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:46:16,654 INFO L93 Difference]: Finished difference Result 1068 states and 1390 transitions. [2022-11-03 02:46:16,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:46:16,655 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 97 [2022-11-03 02:46:16,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:46:16,661 INFO L225 Difference]: With dead ends: 1068 [2022-11-03 02:46:16,661 INFO L226 Difference]: Without dead ends: 1066 [2022-11-03 02:46:16,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:46:16,663 INFO L413 NwaCegarLoop]: 1386 mSDtfsCounter, 1308 mSDsluCounter, 1384 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1310 SdHoareTripleChecker+Valid, 2770 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:46:16,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1310 Valid, 2770 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:46:16,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2022-11-03 02:46:16,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1066. [2022-11-03 02:46:16,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1066 states, 728 states have (on average 1.2472527472527473) internal successors, (908), 769 states have internal predecessors, (908), 241 states have call successors, (241), 70 states have call predecessors, (241), 69 states have return successors, (239), 233 states have call predecessors, (239), 239 states have call successors, (239) [2022-11-03 02:46:16,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 1388 transitions. [2022-11-03 02:46:16,789 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 1388 transitions. Word has length 97 [2022-11-03 02:46:16,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:46:16,789 INFO L495 AbstractCegarLoop]: Abstraction has 1066 states and 1388 transitions. [2022-11-03 02:46:16,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-11-03 02:46:16,790 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 1388 transitions. [2022-11-03 02:46:16,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-03 02:46:16,792 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:46:16,792 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:46:16,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-03 02:46:17,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:46:17,011 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:46:17,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:46:17,011 INFO L85 PathProgramCache]: Analyzing trace with hash -820100210, now seen corresponding path program 1 times [2022-11-03 02:46:17,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:46:17,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [682675914] [2022-11-03 02:46:17,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:46:17,012 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:46:17,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:46:17,013 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:46:17,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-03 02:46:17,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:46:17,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 853 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:46:17,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:46:18,175 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-03 02:46:18,175 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:46:18,175 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:46:18,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [682675914] [2022-11-03 02:46:18,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [682675914] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:46:18,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:46:18,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:46:18,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940425621] [2022-11-03 02:46:18,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:46:18,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:46:18,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:46:18,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:46:18,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:46:18,178 INFO L87 Difference]: Start difference. First operand 1066 states and 1388 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-03 02:46:18,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:46:18,333 INFO L93 Difference]: Finished difference Result 1066 states and 1388 transitions. [2022-11-03 02:46:18,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:46:18,334 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 103 [2022-11-03 02:46:18,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:46:18,351 INFO L225 Difference]: With dead ends: 1066 [2022-11-03 02:46:18,351 INFO L226 Difference]: Without dead ends: 1064 [2022-11-03 02:46:18,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:46:18,354 INFO L413 NwaCegarLoop]: 1384 mSDtfsCounter, 1300 mSDsluCounter, 1382 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1302 SdHoareTripleChecker+Valid, 2766 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:46:18,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1302 Valid, 2766 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:46:18,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states. [2022-11-03 02:46:18,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 1064. [2022-11-03 02:46:18,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1064 states, 727 states have (on average 1.2462173314993124) internal successors, (906), 767 states have internal predecessors, (906), 241 states have call successors, (241), 70 states have call predecessors, (241), 69 states have return successors, (239), 233 states have call predecessors, (239), 239 states have call successors, (239) [2022-11-03 02:46:18,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1064 states to 1064 states and 1386 transitions. [2022-11-03 02:46:18,468 INFO L78 Accepts]: Start accepts. Automaton has 1064 states and 1386 transitions. Word has length 103 [2022-11-03 02:46:18,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:46:18,469 INFO L495 AbstractCegarLoop]: Abstraction has 1064 states and 1386 transitions. [2022-11-03 02:46:18,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-03 02:46:18,470 INFO L276 IsEmpty]: Start isEmpty. Operand 1064 states and 1386 transitions. [2022-11-03 02:46:18,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-03 02:46:18,473 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:46:18,473 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:46:18,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-03 02:46:18,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:46:18,698 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:46:18,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:46:18,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1459862864, now seen corresponding path program 1 times [2022-11-03 02:46:18,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:46:18,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [403809840] [2022-11-03 02:46:18,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:46:18,700 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:46:18,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:46:18,701 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:46:18,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-03 02:46:19,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:46:19,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 862 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:46:19,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:46:19,834 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-03 02:46:19,834 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:46:19,834 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:46:19,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [403809840] [2022-11-03 02:46:19,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [403809840] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:46:19,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:46:19,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:46:19,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556090080] [2022-11-03 02:46:19,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:46:19,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:46:19,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:46:19,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:46:19,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:46:19,837 INFO L87 Difference]: Start difference. First operand 1064 states and 1386 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-03 02:46:19,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:46:19,989 INFO L93 Difference]: Finished difference Result 1064 states and 1386 transitions. [2022-11-03 02:46:19,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:46:19,990 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 109 [2022-11-03 02:46:19,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:46:19,996 INFO L225 Difference]: With dead ends: 1064 [2022-11-03 02:46:19,996 INFO L226 Difference]: Without dead ends: 1062 [2022-11-03 02:46:19,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:46:19,998 INFO L413 NwaCegarLoop]: 1382 mSDtfsCounter, 1292 mSDsluCounter, 1380 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1294 SdHoareTripleChecker+Valid, 2762 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:46:19,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1294 Valid, 2762 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:46:20,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2022-11-03 02:46:20,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 1062. [2022-11-03 02:46:20,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1062 states, 726 states have (on average 1.2451790633608815) internal successors, (904), 765 states have internal predecessors, (904), 241 states have call successors, (241), 70 states have call predecessors, (241), 69 states have return successors, (239), 233 states have call predecessors, (239), 239 states have call successors, (239) [2022-11-03 02:46:20,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1384 transitions. [2022-11-03 02:46:20,128 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1384 transitions. Word has length 109 [2022-11-03 02:46:20,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:46:20,128 INFO L495 AbstractCegarLoop]: Abstraction has 1062 states and 1384 transitions. [2022-11-03 02:46:20,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-03 02:46:20,129 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1384 transitions. [2022-11-03 02:46:20,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-03 02:46:20,131 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:46:20,131 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:46:20,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-03 02:46:20,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:46:20,345 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:46:20,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:46:20,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1131502078, now seen corresponding path program 1 times [2022-11-03 02:46:20,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:46:20,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1108506474] [2022-11-03 02:46:20,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:46:20,346 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:46:20,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:46:20,353 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:46:20,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-03 02:46:21,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:46:21,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 871 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:46:21,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:46:21,505 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-03 02:46:21,505 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:46:21,506 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:46:21,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1108506474] [2022-11-03 02:46:21,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1108506474] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:46:21,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:46:21,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:46:21,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684153172] [2022-11-03 02:46:21,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:46:21,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:46:21,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:46:21,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:46:21,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:46:21,508 INFO L87 Difference]: Start difference. First operand 1062 states and 1384 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-03 02:46:21,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:46:21,825 INFO L93 Difference]: Finished difference Result 2036 states and 2714 transitions. [2022-11-03 02:46:21,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:46:21,826 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 115 [2022-11-03 02:46:21,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:46:21,837 INFO L225 Difference]: With dead ends: 2036 [2022-11-03 02:46:21,837 INFO L226 Difference]: Without dead ends: 2034 [2022-11-03 02:46:21,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:46:21,840 INFO L413 NwaCegarLoop]: 1682 mSDtfsCounter, 1271 mSDsluCounter, 3023 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1273 SdHoareTripleChecker+Valid, 4705 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:46:21,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1273 Valid, 4705 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:46:21,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2034 states. [2022-11-03 02:46:22,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2034 to 1900. [2022-11-03 02:46:22,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1900 states, 1317 states have (on average 1.2498101746393318) internal successors, (1646), 1366 states have internal predecessors, (1646), 431 states have call successors, (431), 127 states have call predecessors, (431), 126 states have return successors, (501), 417 states have call predecessors, (501), 429 states have call successors, (501) [2022-11-03 02:46:22,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1900 states to 1900 states and 2578 transitions. [2022-11-03 02:46:22,146 INFO L78 Accepts]: Start accepts. Automaton has 1900 states and 2578 transitions. Word has length 115 [2022-11-03 02:46:22,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:46:22,146 INFO L495 AbstractCegarLoop]: Abstraction has 1900 states and 2578 transitions. [2022-11-03 02:46:22,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-03 02:46:22,147 INFO L276 IsEmpty]: Start isEmpty. Operand 1900 states and 2578 transitions. [2022-11-03 02:46:22,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-11-03 02:46:22,150 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:46:22,150 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 02:46:22,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-03 02:46:22,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:46:22,365 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:46:22,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:46:22,365 INFO L85 PathProgramCache]: Analyzing trace with hash 464242366, now seen corresponding path program 1 times [2022-11-03 02:46:22,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:46:22,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [546077546] [2022-11-03 02:46:22,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:46:22,367 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:46:22,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:46:22,369 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:46:22,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-03 02:46:23,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:46:23,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 1067 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-03 02:46:23,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:46:24,004 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-03 02:46:24,004 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:46:24,004 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:46:24,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [546077546] [2022-11-03 02:46:24,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [546077546] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:46:24,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:46:24,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-03 02:46:24,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568667623] [2022-11-03 02:46:24,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:46:24,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-03 02:46:24,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:46:24,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-03 02:46:24,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2022-11-03 02:46:24,007 INFO L87 Difference]: Start difference. First operand 1900 states and 2578 transitions. Second operand has 19 states, 18 states have (on average 4.0) internal successors, (72), 18 states have internal predecessors, (72), 7 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2022-11-03 02:46:27,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:46:27,469 INFO L93 Difference]: Finished difference Result 3832 states and 5212 transitions. [2022-11-03 02:46:27,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-03 02:46:27,470 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 4.0) internal successors, (72), 18 states have internal predecessors, (72), 7 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) Word has length 126 [2022-11-03 02:46:27,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:46:27,482 INFO L225 Difference]: With dead ends: 3832 [2022-11-03 02:46:27,482 INFO L226 Difference]: Without dead ends: 1946 [2022-11-03 02:46:27,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=198, Invalid=794, Unknown=0, NotChecked=0, Total=992 [2022-11-03 02:46:27,494 INFO L413 NwaCegarLoop]: 1374 mSDtfsCounter, 107 mSDsluCounter, 23012 mSDsCounter, 0 mSdLazyCounter, 729 mSolverCounterSat, 305 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 24386 SdHoareTripleChecker+Invalid, 1034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 305 IncrementalHoareTripleChecker+Valid, 729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:46:27,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 24386 Invalid, 1034 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [305 Valid, 729 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-03 02:46:27,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1946 states. [2022-11-03 02:46:27,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1946 to 1922. [2022-11-03 02:46:27,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1922 states, 1333 states have (on average 1.2468117029257315) internal successors, (1662), 1382 states have internal predecessors, (1662), 437 states have call successors, (437), 127 states have call predecessors, (437), 126 states have return successors, (507), 423 states have call predecessors, (507), 435 states have call successors, (507) [2022-11-03 02:46:27,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1922 states to 1922 states and 2606 transitions. [2022-11-03 02:46:27,804 INFO L78 Accepts]: Start accepts. Automaton has 1922 states and 2606 transitions. Word has length 126 [2022-11-03 02:46:27,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:46:27,805 INFO L495 AbstractCegarLoop]: Abstraction has 1922 states and 2606 transitions. [2022-11-03 02:46:27,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 4.0) internal successors, (72), 18 states have internal predecessors, (72), 7 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2022-11-03 02:46:27,805 INFO L276 IsEmpty]: Start isEmpty. Operand 1922 states and 2606 transitions. [2022-11-03 02:46:27,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-11-03 02:46:27,807 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:46:27,808 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 02:46:27,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-03 02:46:28,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:46:28,029 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:46:28,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:46:28,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1183120576, now seen corresponding path program 1 times [2022-11-03 02:46:28,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:46:28,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [73159299] [2022-11-03 02:46:28,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:46:28,031 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:46:28,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:46:28,033 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:46:28,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-03 02:46:28,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:46:28,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 1066 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 02:46:28,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:46:28,964 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-11-03 02:46:28,964 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:46:28,964 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:46:28,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [73159299] [2022-11-03 02:46:28,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [73159299] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:46:28,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:46:28,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:46:28,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515963565] [2022-11-03 02:46:28,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:46:28,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:46:28,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:46:28,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:46:28,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:46:28,967 INFO L87 Difference]: Start difference. First operand 1922 states and 2606 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-03 02:46:30,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:46:30,222 INFO L93 Difference]: Finished difference Result 3560 states and 4821 transitions. [2022-11-03 02:46:30,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:46:30,223 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 126 [2022-11-03 02:46:30,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:46:30,235 INFO L225 Difference]: With dead ends: 3560 [2022-11-03 02:46:30,235 INFO L226 Difference]: Without dead ends: 1944 [2022-11-03 02:46:30,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:46:30,244 INFO L413 NwaCegarLoop]: 1431 mSDtfsCounter, 742 mSDsluCounter, 4674 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 268 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 6105 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 268 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:46:30,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [742 Valid, 6105 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [268 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-03 02:46:30,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1944 states. [2022-11-03 02:46:30,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1944 to 1920. [2022-11-03 02:46:30,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1920 states, 1332 states have (on average 1.2462462462462462) internal successors, (1660), 1381 states have internal predecessors, (1660), 436 states have call successors, (436), 127 states have call predecessors, (436), 126 states have return successors, (506), 422 states have call predecessors, (506), 434 states have call successors, (506) [2022-11-03 02:46:30,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1920 states to 1920 states and 2602 transitions. [2022-11-03 02:46:30,552 INFO L78 Accepts]: Start accepts. Automaton has 1920 states and 2602 transitions. Word has length 126 [2022-11-03 02:46:30,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:46:30,552 INFO L495 AbstractCegarLoop]: Abstraction has 1920 states and 2602 transitions. [2022-11-03 02:46:30,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-03 02:46:30,553 INFO L276 IsEmpty]: Start isEmpty. Operand 1920 states and 2602 transitions. [2022-11-03 02:46:30,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-03 02:46:30,554 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:46:30,554 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:46:30,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-03 02:46:30,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:46:30,773 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:46:30,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:46:30,773 INFO L85 PathProgramCache]: Analyzing trace with hash -746634267, now seen corresponding path program 1 times [2022-11-03 02:46:30,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:46:30,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1260299511] [2022-11-03 02:46:30,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:46:30,775 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:46:30,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:46:30,777 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:46:30,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-03 02:46:31,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:46:31,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 874 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:46:31,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:46:32,064 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-03 02:46:32,064 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:46:32,064 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:46:32,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1260299511] [2022-11-03 02:46:32,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1260299511] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:46:32,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:46:32,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:46:32,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082008291] [2022-11-03 02:46:32,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:46:32,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:46:32,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:46:32,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:46:32,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:46:32,067 INFO L87 Difference]: Start difference. First operand 1920 states and 2602 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-03 02:46:32,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:46:32,366 INFO L93 Difference]: Finished difference Result 1920 states and 2602 transitions. [2022-11-03 02:46:32,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:46:32,367 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 117 [2022-11-03 02:46:32,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:46:32,376 INFO L225 Difference]: With dead ends: 1920 [2022-11-03 02:46:32,377 INFO L226 Difference]: Without dead ends: 1918 [2022-11-03 02:46:32,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:46:32,379 INFO L413 NwaCegarLoop]: 1379 mSDtfsCounter, 1282 mSDsluCounter, 1377 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1284 SdHoareTripleChecker+Valid, 2756 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:46:32,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1284 Valid, 2756 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:46:32,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1918 states. [2022-11-03 02:46:32,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1918 to 1918. [2022-11-03 02:46:32,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1918 states, 1331 states have (on average 1.2449286250939144) internal successors, (1657), 1379 states have internal predecessors, (1657), 436 states have call successors, (436), 127 states have call predecessors, (436), 126 states have return successors, (506), 422 states have call predecessors, (506), 434 states have call successors, (506) [2022-11-03 02:46:32,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1918 states to 1918 states and 2599 transitions. [2022-11-03 02:46:32,696 INFO L78 Accepts]: Start accepts. Automaton has 1918 states and 2599 transitions. Word has length 117 [2022-11-03 02:46:32,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:46:32,700 INFO L495 AbstractCegarLoop]: Abstraction has 1918 states and 2599 transitions. [2022-11-03 02:46:32,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-03 02:46:32,701 INFO L276 IsEmpty]: Start isEmpty. Operand 1918 states and 2599 transitions. [2022-11-03 02:46:32,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-03 02:46:32,703 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:46:32,703 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:46:32,727 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2022-11-03 02:46:32,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:46:32,925 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:46:32,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:46:32,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1999753001, now seen corresponding path program 1 times [2022-11-03 02:46:32,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:46:32,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1241698145] [2022-11-03 02:46:32,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:46:32,926 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:46:32,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:46:32,927 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:46:32,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-03 02:46:33,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:46:33,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 883 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:46:33,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:46:34,183 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-03 02:46:34,183 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:46:34,183 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:46:34,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1241698145] [2022-11-03 02:46:34,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1241698145] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:46:34,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:46:34,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:46:34,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940149186] [2022-11-03 02:46:34,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:46:34,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:46:34,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:46:34,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:46:34,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:46:34,185 INFO L87 Difference]: Start difference. First operand 1918 states and 2599 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-03 02:46:34,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:46:34,488 INFO L93 Difference]: Finished difference Result 1918 states and 2599 transitions. [2022-11-03 02:46:34,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:46:34,489 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 123 [2022-11-03 02:46:34,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:46:34,499 INFO L225 Difference]: With dead ends: 1918 [2022-11-03 02:46:34,500 INFO L226 Difference]: Without dead ends: 1916 [2022-11-03 02:46:34,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:46:34,502 INFO L413 NwaCegarLoop]: 1378 mSDtfsCounter, 1274 mSDsluCounter, 1376 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1276 SdHoareTripleChecker+Valid, 2754 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:46:34,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1276 Valid, 2754 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:46:34,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1916 states. [2022-11-03 02:46:34,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1916 to 1916. [2022-11-03 02:46:34,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1916 states, 1330 states have (on average 1.244360902255639) internal successors, (1655), 1377 states have internal predecessors, (1655), 436 states have call successors, (436), 127 states have call predecessors, (436), 126 states have return successors, (506), 422 states have call predecessors, (506), 434 states have call successors, (506) [2022-11-03 02:46:34,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1916 states to 1916 states and 2597 transitions. [2022-11-03 02:46:34,830 INFO L78 Accepts]: Start accepts. Automaton has 1916 states and 2597 transitions. Word has length 123 [2022-11-03 02:46:34,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:46:34,831 INFO L495 AbstractCegarLoop]: Abstraction has 1916 states and 2597 transitions. [2022-11-03 02:46:34,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-03 02:46:34,831 INFO L276 IsEmpty]: Start isEmpty. Operand 1916 states and 2597 transitions. [2022-11-03 02:46:34,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-11-03 02:46:34,833 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:46:34,834 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:46:34,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-03 02:46:35,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:46:35,049 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_usb_dev_usb_put_devErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:46:35,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:46:35,049 INFO L85 PathProgramCache]: Analyzing trace with hash -855176217, now seen corresponding path program 1 times [2022-11-03 02:46:35,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:46:35,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [277974847] [2022-11-03 02:46:35,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:46:35,051 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:46:35,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:46:35,052 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:46:35,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-03 02:46:36,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:46:36,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 1228 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:46:36,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:46:36,449 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 178 proven. 3 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-11-03 02:46:36,449 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:46:37,034 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 6 proven. 51 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2022-11-03 02:46:37,035 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:46:37,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [277974847] [2022-11-03 02:46:37,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [277974847] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:46:37,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [929161097] [2022-11-03 02:46:37,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:46:37,035 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:46:37,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:46:37,040 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:46:37,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2022-11-03 02:46:38,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:46:38,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 1228 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 02:46:38,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:46:39,027 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2022-11-03 02:46:39,027 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:46:39,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [929161097] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:46:39,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:46:39,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8, 8] total 16 [2022-11-03 02:46:39,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540229582] [2022-11-03 02:46:39,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:46:39,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 02:46:39,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:46:39,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 02:46:39,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2022-11-03 02:46:39,029 INFO L87 Difference]: Start difference. First operand 1916 states and 2597 transitions. Second operand has 9 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 3 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) [2022-11-03 02:46:44,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:46:44,528 INFO L93 Difference]: Finished difference Result 5007 states and 7034 transitions. [2022-11-03 02:46:44,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 02:46:44,530 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 3 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 166 [2022-11-03 02:46:44,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:46:44,550 INFO L225 Difference]: With dead ends: 5007 [2022-11-03 02:46:44,550 INFO L226 Difference]: Without dead ends: 3271 [2022-11-03 02:46:44,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 481 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2022-11-03 02:46:44,560 INFO L413 NwaCegarLoop]: 1653 mSDtfsCounter, 2906 mSDsluCounter, 10792 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1027 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2906 SdHoareTripleChecker+Valid, 12445 SdHoareTripleChecker+Invalid, 1100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1027 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:46:44,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2906 Valid, 12445 Invalid, 1100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1027 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-11-03 02:46:44,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3271 states. [2022-11-03 02:46:44,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3271 to 1929. [2022-11-03 02:46:44,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1929 states, 1340 states have (on average 1.2440298507462686) internal successors, (1667), 1388 states have internal predecessors, (1667), 438 states have call successors, (438), 128 states have call predecessors, (438), 127 states have return successors, (508), 423 states have call predecessors, (508), 436 states have call successors, (508) [2022-11-03 02:46:44,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1929 states to 1929 states and 2613 transitions. [2022-11-03 02:46:44,917 INFO L78 Accepts]: Start accepts. Automaton has 1929 states and 2613 transitions. Word has length 166 [2022-11-03 02:46:44,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:46:44,918 INFO L495 AbstractCegarLoop]: Abstraction has 1929 states and 2613 transitions. [2022-11-03 02:46:44,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 3 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) [2022-11-03 02:46:44,918 INFO L276 IsEmpty]: Start isEmpty. Operand 1929 states and 2613 transitions. [2022-11-03 02:46:44,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-11-03 02:46:44,920 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:46:44,920 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:46:44,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2022-11-03 02:46:45,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-03 02:46:45,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:46:45,334 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_usb_dev_usb_put_devErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:46:45,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:46:45,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1507250398, now seen corresponding path program 1 times [2022-11-03 02:46:45,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:46:45,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [179503826] [2022-11-03 02:46:45,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:46:45,336 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:46:45,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:46:45,338 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:46:45,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-03 02:46:46,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:46:46,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 1231 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:46:46,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:46:46,718 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 178 proven. 3 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-11-03 02:46:46,719 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:46:47,321 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 6 proven. 51 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2022-11-03 02:46:47,322 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:46:47,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [179503826] [2022-11-03 02:46:47,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [179503826] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:46:47,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [340992093] [2022-11-03 02:46:47,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:46:47,323 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:46:47,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:46:47,324 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:46:47,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2022-11-03 02:46:48,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:46:48,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 1231 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 02:46:48,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:46:49,219 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2022-11-03 02:46:49,219 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:46:49,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [340992093] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:46:49,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:46:49,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8, 8] total 10 [2022-11-03 02:46:49,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776641629] [2022-11-03 02:46:49,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:46:49,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:46:49,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:46:49,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:46:49,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-03 02:46:49,222 INFO L87 Difference]: Start difference. First operand 1929 states and 2613 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 02:46:50,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:46:50,065 INFO L93 Difference]: Finished difference Result 5631 states and 8280 transitions. [2022-11-03 02:46:50,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:46:50,065 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 168 [2022-11-03 02:46:50,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:46:50,091 INFO L225 Difference]: With dead ends: 5631 [2022-11-03 02:46:50,091 INFO L226 Difference]: Without dead ends: 3775 [2022-11-03 02:46:50,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 501 GetRequests, 493 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-03 02:46:50,111 INFO L413 NwaCegarLoop]: 2145 mSDtfsCounter, 1386 mSDsluCounter, 1315 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1386 SdHoareTripleChecker+Valid, 3460 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:46:50,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1386 Valid, 3460 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:46:50,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3775 states. [2022-11-03 02:46:50,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3775 to 3508. [2022-11-03 02:46:50,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3508 states, 2461 states have (on average 1.2563998374644454) internal successors, (3092), 2529 states have internal predecessors, (3092), 797 states have call successors, (797), 227 states have call predecessors, (797), 226 states have return successors, (1159), 771 states have call predecessors, (1159), 795 states have call successors, (1159) [2022-11-03 02:46:50,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3508 states to 3508 states and 5048 transitions. [2022-11-03 02:46:50,930 INFO L78 Accepts]: Start accepts. Automaton has 3508 states and 5048 transitions. Word has length 168 [2022-11-03 02:46:50,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:46:50,931 INFO L495 AbstractCegarLoop]: Abstraction has 3508 states and 5048 transitions. [2022-11-03 02:46:50,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 02:46:50,932 INFO L276 IsEmpty]: Start isEmpty. Operand 3508 states and 5048 transitions. [2022-11-03 02:46:50,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-11-03 02:46:50,935 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:46:50,936 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:46:50,975 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2022-11-03 02:46:51,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2022-11-03 02:46:51,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 02:46:51,361 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_usb_dev_usb_put_devErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:46:51,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:46:51,361 INFO L85 PathProgramCache]: Analyzing trace with hash 793572192, now seen corresponding path program 1 times [2022-11-03 02:46:51,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:46:51,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [422647333] [2022-11-03 02:46:51,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:46:51,363 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:46:51,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:46:51,363 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:46:51,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-03 02:46:52,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:46:52,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 1231 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:46:52,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:46:52,869 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 178 proven. 3 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-11-03 02:46:52,869 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:46:53,451 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 6 proven. 51 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2022-11-03 02:46:53,452 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:46:53,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [422647333] [2022-11-03 02:46:53,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [422647333] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:46:53,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1823287887] [2022-11-03 02:46:53,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:46:53,452 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:46:53,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:46:53,453 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:46:53,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2022-11-03 02:46:55,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:46:55,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 1231 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 02:46:55,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:46:56,208 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2022-11-03 02:46:56,208 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:46:56,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1823287887] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:46:56,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:46:56,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8, 8] total 13 [2022-11-03 02:46:56,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561563940] [2022-11-03 02:46:56,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:46:56,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:46:56,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:46:56,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:46:56,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-03 02:46:56,211 INFO L87 Difference]: Start difference. First operand 3508 states and 5048 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-03 02:46:57,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:46:57,200 INFO L93 Difference]: Finished difference Result 6997 states and 10083 transitions. [2022-11-03 02:46:57,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:46:57,202 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) Word has length 168 [2022-11-03 02:46:57,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:46:57,232 INFO L225 Difference]: With dead ends: 6997 [2022-11-03 02:46:57,232 INFO L226 Difference]: Without dead ends: 3530 [2022-11-03 02:46:57,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 502 GetRequests, 490 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-03 02:46:57,259 INFO L413 NwaCegarLoop]: 1437 mSDtfsCounter, 365 mSDsluCounter, 5228 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 6665 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:46:57,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 6665 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:46:57,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3530 states. [2022-11-03 02:46:58,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3530 to 3508. [2022-11-03 02:46:58,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3508 states, 2461 states have (on average 1.2559934985778138) internal successors, (3091), 2528 states have internal predecessors, (3091), 797 states have call successors, (797), 227 states have call predecessors, (797), 226 states have return successors, (1159), 771 states have call predecessors, (1159), 795 states have call successors, (1159) [2022-11-03 02:46:58,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3508 states to 3508 states and 5047 transitions. [2022-11-03 02:46:58,243 INFO L78 Accepts]: Start accepts. Automaton has 3508 states and 5047 transitions. Word has length 168 [2022-11-03 02:46:58,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:46:58,243 INFO L495 AbstractCegarLoop]: Abstraction has 3508 states and 5047 transitions. [2022-11-03 02:46:58,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-03 02:46:58,244 INFO L276 IsEmpty]: Start isEmpty. Operand 3508 states and 5047 transitions. [2022-11-03 02:46:58,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-11-03 02:46:58,245 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:46:58,245 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:46:58,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2022-11-03 02:46:58,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-11-03 02:46:58,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:46:58,665 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:46:58,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:46:58,666 INFO L85 PathProgramCache]: Analyzing trace with hash 2057366102, now seen corresponding path program 1 times [2022-11-03 02:46:58,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:46:58,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1495071948] [2022-11-03 02:46:58,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:46:58,667 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:46:58,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:46:58,668 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:46:58,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-11-03 02:46:59,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:46:59,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 892 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:46:59,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:46:59,952 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-03 02:46:59,952 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:46:59,952 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:46:59,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1495071948] [2022-11-03 02:46:59,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1495071948] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:46:59,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:46:59,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:46:59,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537252877] [2022-11-03 02:46:59,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:46:59,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:46:59,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:46:59,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:46:59,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:46:59,955 INFO L87 Difference]: Start difference. First operand 3508 states and 5047 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-03 02:47:00,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:47:00,531 INFO L93 Difference]: Finished difference Result 3508 states and 5047 transitions. [2022-11-03 02:47:00,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:47:00,531 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 129 [2022-11-03 02:47:00,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:47:00,551 INFO L225 Difference]: With dead ends: 3508 [2022-11-03 02:47:00,551 INFO L226 Difference]: Without dead ends: 3506 [2022-11-03 02:47:00,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:47:00,554 INFO L413 NwaCegarLoop]: 1374 mSDtfsCounter, 1264 mSDsluCounter, 1372 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1266 SdHoareTripleChecker+Valid, 2746 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:47:00,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1266 Valid, 2746 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:47:00,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3506 states. [2022-11-03 02:47:01,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3506 to 3506. [2022-11-03 02:47:01,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3506 states, 2460 states have (on average 1.255691056910569) internal successors, (3089), 2526 states have internal predecessors, (3089), 797 states have call successors, (797), 227 states have call predecessors, (797), 226 states have return successors, (1159), 771 states have call predecessors, (1159), 795 states have call successors, (1159) [2022-11-03 02:47:01,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3506 states to 3506 states and 5045 transitions. [2022-11-03 02:47:01,314 INFO L78 Accepts]: Start accepts. Automaton has 3506 states and 5045 transitions. Word has length 129 [2022-11-03 02:47:01,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:47:01,314 INFO L495 AbstractCegarLoop]: Abstraction has 3506 states and 5045 transitions. [2022-11-03 02:47:01,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-03 02:47:01,315 INFO L276 IsEmpty]: Start isEmpty. Operand 3506 states and 5045 transitions. [2022-11-03 02:47:01,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-11-03 02:47:01,316 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:47:01,317 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:47:01,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-11-03 02:47:01,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:47:01,541 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_usb_dev_usb_put_devErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:47:01,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:47:01,541 INFO L85 PathProgramCache]: Analyzing trace with hash -214495069, now seen corresponding path program 1 times [2022-11-03 02:47:01,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:47:01,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [618716809] [2022-11-03 02:47:01,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:47:01,542 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:47:01,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:47:01,543 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:47:01,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-11-03 02:47:02,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:47:02,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 1243 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-03 02:47:02,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:47:02,956 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 229 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-11-03 02:47:02,956 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:47:03,933 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 18 proven. 39 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2022-11-03 02:47:03,933 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:47:03,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [618716809] [2022-11-03 02:47:03,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [618716809] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:47:03,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [240021088] [2022-11-03 02:47:03,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:47:03,936 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:47:03,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:47:03,938 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:47:03,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2022-11-03 02:47:06,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:47:06,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 1243 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 02:47:06,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:47:06,573 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2022-11-03 02:47:06,574 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:47:06,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [240021088] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:47:06,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:47:06,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 8] total 14 [2022-11-03 02:47:06,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020701980] [2022-11-03 02:47:06,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:47:06,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:47:06,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:47:06,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:47:06,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-03 02:47:06,577 INFO L87 Difference]: Start difference. First operand 3506 states and 5045 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-03 02:47:07,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:47:07,504 INFO L93 Difference]: Finished difference Result 6988 states and 10070 transitions. [2022-11-03 02:47:07,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:47:07,505 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) Word has length 172 [2022-11-03 02:47:07,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:47:07,525 INFO L225 Difference]: With dead ends: 6988 [2022-11-03 02:47:07,525 INFO L226 Difference]: Without dead ends: 3528 [2022-11-03 02:47:07,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 514 GetRequests, 500 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2022-11-03 02:47:07,542 INFO L413 NwaCegarLoop]: 1434 mSDtfsCounter, 361 mSDsluCounter, 5222 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 6656 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:47:07,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 6656 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:47:07,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3528 states. [2022-11-03 02:47:08,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3528 to 3506. [2022-11-03 02:47:08,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3506 states, 2460 states have (on average 1.2552845528455285) internal successors, (3088), 2525 states have internal predecessors, (3088), 797 states have call successors, (797), 227 states have call predecessors, (797), 226 states have return successors, (1159), 771 states have call predecessors, (1159), 795 states have call successors, (1159) [2022-11-03 02:47:08,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3506 states to 3506 states and 5044 transitions. [2022-11-03 02:47:08,340 INFO L78 Accepts]: Start accepts. Automaton has 3506 states and 5044 transitions. Word has length 172 [2022-11-03 02:47:08,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:47:08,340 INFO L495 AbstractCegarLoop]: Abstraction has 3506 states and 5044 transitions. [2022-11-03 02:47:08,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-03 02:47:08,341 INFO L276 IsEmpty]: Start isEmpty. Operand 3506 states and 5044 transitions. [2022-11-03 02:47:08,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-03 02:47:08,342 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:47:08,343 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:47:08,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (22)] Forceful destruction successful, exit code 0 [2022-11-03 02:47:08,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-11-03 02:47:08,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:47:08,764 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:47:08,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:47:08,764 INFO L85 PathProgramCache]: Analyzing trace with hash 435553863, now seen corresponding path program 1 times [2022-11-03 02:47:08,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:47:08,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1670788623] [2022-11-03 02:47:08,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:47:08,766 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:47:08,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:47:08,770 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:47:08,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-11-03 02:47:09,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:47:09,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 901 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:47:09,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:47:10,430 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-03 02:47:10,431 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:47:10,431 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:47:10,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1670788623] [2022-11-03 02:47:10,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1670788623] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:47:10,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:47:10,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:47:10,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254899157] [2022-11-03 02:47:10,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:47:10,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:47:10,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:47:10,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:47:10,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:47:10,433 INFO L87 Difference]: Start difference. First operand 3506 states and 5044 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2022-11-03 02:47:11,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:47:11,305 INFO L93 Difference]: Finished difference Result 3506 states and 5044 transitions. [2022-11-03 02:47:11,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:47:11,305 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 135 [2022-11-03 02:47:11,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:47:11,322 INFO L225 Difference]: With dead ends: 3506 [2022-11-03 02:47:11,322 INFO L226 Difference]: Without dead ends: 3504 [2022-11-03 02:47:11,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:47:11,325 INFO L413 NwaCegarLoop]: 1371 mSDtfsCounter, 1255 mSDsluCounter, 1369 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1257 SdHoareTripleChecker+Valid, 2740 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:47:11,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1257 Valid, 2740 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:47:11,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3504 states. [2022-11-03 02:47:12,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3504 to 3504. [2022-11-03 02:47:12,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3504 states, 2459 states have (on average 1.2549816998779992) internal successors, (3086), 2523 states have internal predecessors, (3086), 797 states have call successors, (797), 227 states have call predecessors, (797), 226 states have return successors, (1159), 771 states have call predecessors, (1159), 795 states have call successors, (1159) [2022-11-03 02:47:12,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3504 states to 3504 states and 5042 transitions. [2022-11-03 02:47:12,068 INFO L78 Accepts]: Start accepts. Automaton has 3504 states and 5042 transitions. Word has length 135 [2022-11-03 02:47:12,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:47:12,069 INFO L495 AbstractCegarLoop]: Abstraction has 3504 states and 5042 transitions. [2022-11-03 02:47:12,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2022-11-03 02:47:12,069 INFO L276 IsEmpty]: Start isEmpty. Operand 3504 states and 5042 transitions. [2022-11-03 02:47:12,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-11-03 02:47:12,071 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:47:12,071 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:47:12,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2022-11-03 02:47:12,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:47:12,298 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_usb_dev_usb_put_devErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:47:12,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:47:12,299 INFO L85 PathProgramCache]: Analyzing trace with hash 267504704, now seen corresponding path program 1 times [2022-11-03 02:47:12,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:47:12,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1892791944] [2022-11-03 02:47:12,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:47:12,300 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:47:12,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:47:12,302 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:47:12,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-11-03 02:47:13,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:47:14,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 1255 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-03 02:47:14,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:47:14,143 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2022-11-03 02:47:14,143 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:47:14,144 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:47:14,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1892791944] [2022-11-03 02:47:14,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1892791944] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:47:14,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:47:14,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:47:14,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568036997] [2022-11-03 02:47:14,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:47:14,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:47:14,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:47:14,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:47:14,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:47:14,146 INFO L87 Difference]: Start difference. First operand 3504 states and 5042 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-03 02:47:15,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:47:15,317 INFO L93 Difference]: Finished difference Result 6957 states and 10028 transitions. [2022-11-03 02:47:15,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:47:15,318 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 176 [2022-11-03 02:47:15,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:47:15,333 INFO L225 Difference]: With dead ends: 6957 [2022-11-03 02:47:15,333 INFO L226 Difference]: Without dead ends: 3526 [2022-11-03 02:47:15,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:47:15,347 INFO L413 NwaCegarLoop]: 1416 mSDtfsCounter, 342 mSDsluCounter, 5179 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 6595 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:47:15,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 6595 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:47:15,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3526 states. [2022-11-03 02:47:16,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3526 to 3504. [2022-11-03 02:47:16,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3504 states, 2459 states have (on average 1.2541683611224075) internal successors, (3084), 2523 states have internal predecessors, (3084), 797 states have call successors, (797), 227 states have call predecessors, (797), 226 states have return successors, (1159), 771 states have call predecessors, (1159), 795 states have call successors, (1159) [2022-11-03 02:47:16,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3504 states to 3504 states and 5040 transitions. [2022-11-03 02:47:16,534 INFO L78 Accepts]: Start accepts. Automaton has 3504 states and 5040 transitions. Word has length 176 [2022-11-03 02:47:16,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:47:16,535 INFO L495 AbstractCegarLoop]: Abstraction has 3504 states and 5040 transitions. [2022-11-03 02:47:16,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-03 02:47:16,536 INFO L276 IsEmpty]: Start isEmpty. Operand 3504 states and 5040 transitions. [2022-11-03 02:47:16,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-11-03 02:47:16,537 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:47:16,538 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:47:16,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2022-11-03 02:47:16,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:47:16,761 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_usb_dev_usb_put_devErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:47:16,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:47:16,761 INFO L85 PathProgramCache]: Analyzing trace with hash -541841922, now seen corresponding path program 1 times [2022-11-03 02:47:16,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:47:16,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1939123228] [2022-11-03 02:47:16,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:47:16,763 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:47:16,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:47:16,764 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:47:16,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-11-03 02:47:18,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:47:18,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 1255 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-03 02:47:18,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:47:18,510 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2022-11-03 02:47:18,510 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:47:18,511 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:47:18,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1939123228] [2022-11-03 02:47:18,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1939123228] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:47:18,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:47:18,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:47:18,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166785405] [2022-11-03 02:47:18,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:47:18,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:47:18,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:47:18,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:47:18,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:47:18,513 INFO L87 Difference]: Start difference. First operand 3504 states and 5040 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-03 02:47:19,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:47:19,696 INFO L93 Difference]: Finished difference Result 7142 states and 10603 transitions. [2022-11-03 02:47:19,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:47:19,697 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 176 [2022-11-03 02:47:19,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:47:19,716 INFO L225 Difference]: With dead ends: 7142 [2022-11-03 02:47:19,716 INFO L226 Difference]: Without dead ends: 3769 [2022-11-03 02:47:19,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:47:19,735 INFO L413 NwaCegarLoop]: 2233 mSDtfsCounter, 1304 mSDsluCounter, 5907 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1304 SdHoareTripleChecker+Valid, 8140 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:47:19,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1304 Valid, 8140 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:47:19,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3769 states. [2022-11-03 02:47:20,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3769 to 3508. [2022-11-03 02:47:20,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3508 states, 2461 states have (on average 1.2523364485981308) internal successors, (3082), 2527 states have internal predecessors, (3082), 797 states have call successors, (797), 227 states have call predecessors, (797), 228 states have return successors, (1159), 771 states have call predecessors, (1159), 795 states have call successors, (1159) [2022-11-03 02:47:20,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3508 states to 3508 states and 5038 transitions. [2022-11-03 02:47:20,717 INFO L78 Accepts]: Start accepts. Automaton has 3508 states and 5038 transitions. Word has length 176 [2022-11-03 02:47:20,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:47:20,718 INFO L495 AbstractCegarLoop]: Abstraction has 3508 states and 5038 transitions. [2022-11-03 02:47:20,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-03 02:47:20,718 INFO L276 IsEmpty]: Start isEmpty. Operand 3508 states and 5038 transitions. [2022-11-03 02:47:20,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-11-03 02:47:20,720 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:47:20,720 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:47:20,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2022-11-03 02:47:20,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:47:20,941 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_usb_dev_usb_put_devErr1ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:47:20,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:47:20,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1018892191, now seen corresponding path program 1 times [2022-11-03 02:47:20,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:47:20,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1294586394] [2022-11-03 02:47:20,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:47:20,942 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:47:20,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:47:20,946 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:47:20,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2022-11-03 02:47:22,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:47:22,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 1258 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-03 02:47:22,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:47:22,607 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2022-11-03 02:47:22,607 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:47:22,607 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:47:22,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1294586394] [2022-11-03 02:47:22,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1294586394] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:47:22,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:47:22,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:47:22,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191646522] [2022-11-03 02:47:22,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:47:22,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:47:22,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:47:22,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:47:22,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:47:22,610 INFO L87 Difference]: Start difference. First operand 3508 states and 5038 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-03 02:47:23,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:47:23,474 INFO L93 Difference]: Finished difference Result 3769 states and 5314 transitions. [2022-11-03 02:47:23,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:47:23,474 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 178 [2022-11-03 02:47:23,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:47:23,490 INFO L225 Difference]: With dead ends: 3769 [2022-11-03 02:47:23,490 INFO L226 Difference]: Without dead ends: 3767 [2022-11-03 02:47:23,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:47:23,493 INFO L413 NwaCegarLoop]: 2213 mSDtfsCounter, 1296 mSDsluCounter, 5866 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1296 SdHoareTripleChecker+Valid, 8079 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:47:23,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1296 Valid, 8079 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:47:23,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3767 states. [2022-11-03 02:47:24,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3767 to 3508. [2022-11-03 02:47:24,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3508 states, 2461 states have (on average 1.2515237708248679) internal successors, (3080), 2527 states have internal predecessors, (3080), 797 states have call successors, (797), 227 states have call predecessors, (797), 228 states have return successors, (1159), 771 states have call predecessors, (1159), 795 states have call successors, (1159) [2022-11-03 02:47:24,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3508 states to 3508 states and 5036 transitions. [2022-11-03 02:47:24,722 INFO L78 Accepts]: Start accepts. Automaton has 3508 states and 5036 transitions. Word has length 178 [2022-11-03 02:47:24,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:47:24,723 INFO L495 AbstractCegarLoop]: Abstraction has 3508 states and 5036 transitions. [2022-11-03 02:47:24,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-03 02:47:24,723 INFO L276 IsEmpty]: Start isEmpty. Operand 3508 states and 5036 transitions. [2022-11-03 02:47:24,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-11-03 02:47:24,724 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:47:24,725 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:47:24,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2022-11-03 02:47:24,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:47:24,933 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:47:24,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:47:24,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1145027505, now seen corresponding path program 1 times [2022-11-03 02:47:24,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:47:24,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [207353518] [2022-11-03 02:47:24,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:47:24,935 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:47:24,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:47:24,936 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:47:24,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2022-11-03 02:47:26,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:47:26,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 1270 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 02:47:26,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:47:26,526 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2022-11-03 02:47:26,527 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:47:26,527 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:47:26,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [207353518] [2022-11-03 02:47:26,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [207353518] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:47:26,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:47:26,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:47:26,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126329701] [2022-11-03 02:47:26,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:47:26,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:47:26,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:47:26,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:47:26,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:47:26,529 INFO L87 Difference]: Start difference. First operand 3508 states and 5036 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 02:47:27,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:47:27,257 INFO L93 Difference]: Finished difference Result 6785 states and 9727 transitions. [2022-11-03 02:47:27,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:47:27,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 180 [2022-11-03 02:47:27,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:47:27,274 INFO L225 Difference]: With dead ends: 6785 [2022-11-03 02:47:27,275 INFO L226 Difference]: Without dead ends: 3498 [2022-11-03 02:47:27,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:47:27,289 INFO L413 NwaCegarLoop]: 1365 mSDtfsCounter, 1334 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1334 SdHoareTripleChecker+Valid, 1365 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:47:27,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1334 Valid, 1365 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:47:27,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3498 states. [2022-11-03 02:47:28,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3498 to 3498. [2022-11-03 02:47:28,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3498 states, 2452 states have (on average 1.249184339314845) internal successors, (3063), 2517 states have internal predecessors, (3063), 797 states have call successors, (797), 227 states have call predecessors, (797), 228 states have return successors, (1159), 771 states have call predecessors, (1159), 795 states have call successors, (1159) [2022-11-03 02:47:28,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3498 states to 3498 states and 5019 transitions. [2022-11-03 02:47:28,224 INFO L78 Accepts]: Start accepts. Automaton has 3498 states and 5019 transitions. Word has length 180 [2022-11-03 02:47:28,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:47:28,225 INFO L495 AbstractCegarLoop]: Abstraction has 3498 states and 5019 transitions. [2022-11-03 02:47:28,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 02:47:28,225 INFO L276 IsEmpty]: Start isEmpty. Operand 3498 states and 5019 transitions. [2022-11-03 02:47:28,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-11-03 02:47:28,227 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:47:28,227 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:47:28,251 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (27)] Ended with exit code 0 [2022-11-03 02:47:28,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:47:28,428 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:47:28,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:47:28,428 INFO L85 PathProgramCache]: Analyzing trace with hash 407648376, now seen corresponding path program 1 times [2022-11-03 02:47:28,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:47:28,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [930571958] [2022-11-03 02:47:28,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:47:28,429 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:47:28,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:47:28,430 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:47:28,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2022-11-03 02:47:29,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:47:29,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 910 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:47:29,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:47:29,764 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-03 02:47:29,765 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:47:29,765 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:47:29,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [930571958] [2022-11-03 02:47:29,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [930571958] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:47:29,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:47:29,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:47:29,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419347087] [2022-11-03 02:47:29,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:47:29,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:47:29,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:47:29,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:47:29,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:47:29,767 INFO L87 Difference]: Start difference. First operand 3498 states and 5019 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2022-11-03 02:47:30,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:47:30,484 INFO L93 Difference]: Finished difference Result 3498 states and 5019 transitions. [2022-11-03 02:47:30,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:47:30,485 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 141 [2022-11-03 02:47:30,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:47:30,498 INFO L225 Difference]: With dead ends: 3498 [2022-11-03 02:47:30,498 INFO L226 Difference]: Without dead ends: 3496 [2022-11-03 02:47:30,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:47:30,501 INFO L413 NwaCegarLoop]: 1362 mSDtfsCounter, 1240 mSDsluCounter, 1360 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1242 SdHoareTripleChecker+Valid, 2722 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:47:30,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1242 Valid, 2722 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:47:30,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3496 states. [2022-11-03 02:47:31,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3496 to 3496. [2022-11-03 02:47:31,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3496 states, 2451 states have (on average 1.2488780089759282) internal successors, (3061), 2515 states have internal predecessors, (3061), 797 states have call successors, (797), 227 states have call predecessors, (797), 228 states have return successors, (1159), 771 states have call predecessors, (1159), 795 states have call successors, (1159) [2022-11-03 02:47:31,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3496 states to 3496 states and 5017 transitions. [2022-11-03 02:47:31,428 INFO L78 Accepts]: Start accepts. Automaton has 3496 states and 5017 transitions. Word has length 141 [2022-11-03 02:47:31,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:47:31,429 INFO L495 AbstractCegarLoop]: Abstraction has 3496 states and 5017 transitions. [2022-11-03 02:47:31,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2022-11-03 02:47:31,429 INFO L276 IsEmpty]: Start isEmpty. Operand 3496 states and 5017 transitions. [2022-11-03 02:47:31,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-11-03 02:47:31,431 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:47:31,431 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:47:31,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2022-11-03 02:47:31,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:47:31,638 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:47:31,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:47:31,639 INFO L85 PathProgramCache]: Analyzing trace with hash 669916094, now seen corresponding path program 1 times [2022-11-03 02:47:31,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:47:31,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1802616756] [2022-11-03 02:47:31,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:47:31,640 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:47:31,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:47:31,641 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:47:31,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2022-11-03 02:47:33,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:47:33,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 1279 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 02:47:33,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:47:33,259 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2022-11-03 02:47:33,259 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:47:33,259 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:47:33,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1802616756] [2022-11-03 02:47:33,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1802616756] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:47:33,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:47:33,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:47:33,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720362590] [2022-11-03 02:47:33,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:47:33,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:47:33,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:47:33,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:47:33,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:47:33,261 INFO L87 Difference]: Start difference. First operand 3496 states and 5017 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-03 02:47:34,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:47:34,202 INFO L93 Difference]: Finished difference Result 6760 states and 9681 transitions. [2022-11-03 02:47:34,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:47:34,203 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 186 [2022-11-03 02:47:34,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:47:34,218 INFO L225 Difference]: With dead ends: 6760 [2022-11-03 02:47:34,219 INFO L226 Difference]: Without dead ends: 3497 [2022-11-03 02:47:34,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:47:34,232 INFO L413 NwaCegarLoop]: 1375 mSDtfsCounter, 1321 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1321 SdHoareTripleChecker+Valid, 1399 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:47:34,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1321 Valid, 1399 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:47:34,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3497 states. [2022-11-03 02:47:35,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3497 to 3496. [2022-11-03 02:47:35,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3496 states, 2449 states have (on average 1.2458146182115148) internal successors, (3051), 2512 states have internal predecessors, (3051), 797 states have call successors, (797), 230 states have call predecessors, (797), 231 states have return successors, (1159), 771 states have call predecessors, (1159), 795 states have call successors, (1159) [2022-11-03 02:47:35,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3496 states to 3496 states and 5007 transitions. [2022-11-03 02:47:35,523 INFO L78 Accepts]: Start accepts. Automaton has 3496 states and 5007 transitions. Word has length 186 [2022-11-03 02:47:35,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:47:35,523 INFO L495 AbstractCegarLoop]: Abstraction has 3496 states and 5007 transitions. [2022-11-03 02:47:35,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-03 02:47:35,524 INFO L276 IsEmpty]: Start isEmpty. Operand 3496 states and 5007 transitions. [2022-11-03 02:47:35,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-11-03 02:47:35,525 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:47:35,525 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:47:35,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2022-11-03 02:47:35,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:47:35,726 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:47:35,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:47:35,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1547908499, now seen corresponding path program 1 times [2022-11-03 02:47:35,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:47:35,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [634407722] [2022-11-03 02:47:35,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:47:35,728 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:47:35,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:47:35,729 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:47:35,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2022-11-03 02:47:36,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:47:36,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 919 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:47:36,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:47:37,206 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-03 02:47:37,207 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:47:37,207 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:47:37,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [634407722] [2022-11-03 02:47:37,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [634407722] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:47:37,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:47:37,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:47:37,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567492045] [2022-11-03 02:47:37,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:47:37,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:47:37,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:47:37,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:47:37,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:47:37,209 INFO L87 Difference]: Start difference. First operand 3496 states and 5007 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-03 02:47:37,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:47:37,989 INFO L93 Difference]: Finished difference Result 3496 states and 5007 transitions. [2022-11-03 02:47:37,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:47:37,990 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 147 [2022-11-03 02:47:37,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:47:38,002 INFO L225 Difference]: With dead ends: 3496 [2022-11-03 02:47:38,003 INFO L226 Difference]: Without dead ends: 3494 [2022-11-03 02:47:38,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:47:38,005 INFO L413 NwaCegarLoop]: 1355 mSDtfsCounter, 1227 mSDsluCounter, 1353 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1229 SdHoareTripleChecker+Valid, 2708 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:47:38,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1229 Valid, 2708 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:47:38,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3494 states. [2022-11-03 02:47:39,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3494 to 3494. [2022-11-03 02:47:39,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3494 states, 2448 states have (on average 1.2455065359477124) internal successors, (3049), 2510 states have internal predecessors, (3049), 797 states have call successors, (797), 230 states have call predecessors, (797), 231 states have return successors, (1159), 771 states have call predecessors, (1159), 795 states have call successors, (1159) [2022-11-03 02:47:39,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3494 states to 3494 states and 5005 transitions. [2022-11-03 02:47:39,065 INFO L78 Accepts]: Start accepts. Automaton has 3494 states and 5005 transitions. Word has length 147 [2022-11-03 02:47:39,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:47:39,065 INFO L495 AbstractCegarLoop]: Abstraction has 3494 states and 5005 transitions. [2022-11-03 02:47:39,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-03 02:47:39,065 INFO L276 IsEmpty]: Start isEmpty. Operand 3494 states and 5005 transitions. [2022-11-03 02:47:39,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-11-03 02:47:39,067 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:47:39,068 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:47:39,085 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2022-11-03 02:47:39,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:47:39,268 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:47:39,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:47:39,269 INFO L85 PathProgramCache]: Analyzing trace with hash -319285774, now seen corresponding path program 1 times [2022-11-03 02:47:39,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:47:39,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1084000695] [2022-11-03 02:47:39,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:47:39,271 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:47:39,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:47:39,272 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:47:39,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2022-11-03 02:47:40,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:47:40,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 1343 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 02:47:40,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:47:40,957 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2022-11-03 02:47:40,957 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:47:40,957 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:47:40,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1084000695] [2022-11-03 02:47:40,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1084000695] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:47:40,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:47:40,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:47:40,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499426325] [2022-11-03 02:47:40,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:47:40,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:47:40,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:47:40,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:47:40,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:47:40,959 INFO L87 Difference]: Start difference. First operand 3494 states and 5005 transitions. Second operand has 6 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-03 02:47:42,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:47:42,628 INFO L93 Difference]: Finished difference Result 8021 states and 11751 transitions. [2022-11-03 02:47:42,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:47:42,629 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 192 [2022-11-03 02:47:42,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:47:42,641 INFO L225 Difference]: With dead ends: 8021 [2022-11-03 02:47:42,641 INFO L226 Difference]: Without dead ends: 4630 [2022-11-03 02:47:42,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:47:42,654 INFO L413 NwaCegarLoop]: 1846 mSDtfsCounter, 324 mSDsluCounter, 6918 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 8764 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:47:42,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 8764 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:47:42,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4630 states. [2022-11-03 02:47:43,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4630 to 3494. [2022-11-03 02:47:43,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3494 states, 2448 states have (on average 1.2446895424836601) internal successors, (3047), 2510 states have internal predecessors, (3047), 797 states have call successors, (797), 230 states have call predecessors, (797), 231 states have return successors, (1159), 771 states have call predecessors, (1159), 795 states have call successors, (1159) [2022-11-03 02:47:43,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3494 states to 3494 states and 5003 transitions. [2022-11-03 02:47:43,606 INFO L78 Accepts]: Start accepts. Automaton has 3494 states and 5003 transitions. Word has length 192 [2022-11-03 02:47:43,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:47:43,607 INFO L495 AbstractCegarLoop]: Abstraction has 3494 states and 5003 transitions. [2022-11-03 02:47:43,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-03 02:47:43,607 INFO L276 IsEmpty]: Start isEmpty. Operand 3494 states and 5003 transitions. [2022-11-03 02:47:43,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-11-03 02:47:43,608 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:47:43,609 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:47:43,637 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (31)] Ended with exit code 0 [2022-11-03 02:47:43,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:47:43,809 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:47:43,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:47:43,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1907633676, now seen corresponding path program 1 times [2022-11-03 02:47:43,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:47:43,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [661386811] [2022-11-03 02:47:43,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:47:43,811 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:47:43,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:47:43,812 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:47:43,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2022-11-03 02:47:45,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:47:45,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 1343 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 02:47:45,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:47:46,086 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2022-11-03 02:47:46,086 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:47:46,087 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:47:46,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [661386811] [2022-11-03 02:47:46,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [661386811] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:47:46,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:47:46,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:47:46,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750158337] [2022-11-03 02:47:46,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:47:46,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:47:46,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:47:46,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:47:46,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:47:46,089 INFO L87 Difference]: Start difference. First operand 3494 states and 5003 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-03 02:47:48,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:47:48,973 INFO L93 Difference]: Finished difference Result 6881 states and 10545 transitions. [2022-11-03 02:47:48,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:47:48,974 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) Word has length 192 [2022-11-03 02:47:48,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:47:48,987 INFO L225 Difference]: With dead ends: 6881 [2022-11-03 02:47:48,987 INFO L226 Difference]: Without dead ends: 3494 [2022-11-03 02:47:49,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:47:49,005 INFO L413 NwaCegarLoop]: 1352 mSDtfsCounter, 1261 mSDsluCounter, 3566 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1264 SdHoareTripleChecker+Valid, 4918 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:47:49,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1264 Valid, 4918 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-03 02:47:49,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3494 states. [2022-11-03 02:47:49,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3494 to 3494. [2022-11-03 02:47:49,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3494 states, 2448 states have (on average 1.2430555555555556) internal successors, (3043), 2510 states have internal predecessors, (3043), 797 states have call successors, (797), 230 states have call predecessors, (797), 231 states have return successors, (1159), 771 states have call predecessors, (1159), 795 states have call successors, (1159) [2022-11-03 02:47:49,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3494 states to 3494 states and 4999 transitions. [2022-11-03 02:47:49,760 INFO L78 Accepts]: Start accepts. Automaton has 3494 states and 4999 transitions. Word has length 192 [2022-11-03 02:47:49,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:47:49,760 INFO L495 AbstractCegarLoop]: Abstraction has 3494 states and 4999 transitions. [2022-11-03 02:47:49,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-03 02:47:49,761 INFO L276 IsEmpty]: Start isEmpty. Operand 3494 states and 4999 transitions. [2022-11-03 02:47:49,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-11-03 02:47:49,762 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:47:49,762 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:47:49,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2022-11-03 02:47:49,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:47:49,963 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:47:49,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:47:49,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1907574094, now seen corresponding path program 1 times [2022-11-03 02:47:49,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:47:49,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [173773859] [2022-11-03 02:47:49,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:47:49,964 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:47:49,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:47:49,965 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:47:49,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2022-11-03 02:47:51,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:47:51,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 1343 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:47:51,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:47:51,548 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2022-11-03 02:47:51,548 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:47:51,548 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:47:51,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [173773859] [2022-11-03 02:47:51,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [173773859] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:47:51,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:47:51,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:47:51,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025184545] [2022-11-03 02:47:51,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:47:51,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:47:51,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:47:51,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:47:51,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:47:51,551 INFO L87 Difference]: Start difference. First operand 3494 states and 4999 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-03 02:47:52,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:47:52,377 INFO L93 Difference]: Finished difference Result 3494 states and 4999 transitions. [2022-11-03 02:47:52,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:47:52,377 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 192 [2022-11-03 02:47:52,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:47:52,391 INFO L225 Difference]: With dead ends: 3494 [2022-11-03 02:47:52,391 INFO L226 Difference]: Without dead ends: 3492 [2022-11-03 02:47:52,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:47:52,395 INFO L413 NwaCegarLoop]: 1351 mSDtfsCounter, 7 mSDsluCounter, 2696 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 4047 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:47:52,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 4047 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:47:52,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3492 states. [2022-11-03 02:47:53,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3492 to 3492. [2022-11-03 02:47:53,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3492 states, 2447 states have (on average 1.2415202288516551) internal successors, (3038), 2508 states have internal predecessors, (3038), 797 states have call successors, (797), 230 states have call predecessors, (797), 231 states have return successors, (1159), 771 states have call predecessors, (1159), 795 states have call successors, (1159) [2022-11-03 02:47:53,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3492 states to 3492 states and 4994 transitions. [2022-11-03 02:47:53,573 INFO L78 Accepts]: Start accepts. Automaton has 3492 states and 4994 transitions. Word has length 192 [2022-11-03 02:47:53,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:47:53,574 INFO L495 AbstractCegarLoop]: Abstraction has 3492 states and 4994 transitions. [2022-11-03 02:47:53,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-03 02:47:53,574 INFO L276 IsEmpty]: Start isEmpty. Operand 3492 states and 4994 transitions. [2022-11-03 02:47:53,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-11-03 02:47:53,575 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:47:53,575 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:47:53,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2022-11-03 02:47:53,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:47:53,776 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:47:53,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:47:53,776 INFO L85 PathProgramCache]: Analyzing trace with hash 946747529, now seen corresponding path program 1 times [2022-11-03 02:47:53,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:47:53,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1620248724] [2022-11-03 02:47:53,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:47:53,778 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:47:53,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:47:53,779 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:47:53,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2022-11-03 02:47:54,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:47:54,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 928 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:47:54,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:47:55,211 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-03 02:47:55,211 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:47:55,211 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:47:55,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1620248724] [2022-11-03 02:47:55,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1620248724] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:47:55,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:47:55,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:47:55,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948580151] [2022-11-03 02:47:55,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:47:55,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:47:55,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:47:55,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:47:55,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:47:55,213 INFO L87 Difference]: Start difference. First operand 3492 states and 4994 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2022-11-03 02:47:56,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:47:56,091 INFO L93 Difference]: Finished difference Result 3492 states and 4994 transitions. [2022-11-03 02:47:56,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:47:56,092 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 153 [2022-11-03 02:47:56,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:47:56,101 INFO L225 Difference]: With dead ends: 3492 [2022-11-03 02:47:56,101 INFO L226 Difference]: Without dead ends: 3490 [2022-11-03 02:47:56,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:47:56,103 INFO L413 NwaCegarLoop]: 1349 mSDtfsCounter, 1215 mSDsluCounter, 1347 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1217 SdHoareTripleChecker+Valid, 2696 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:47:56,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1217 Valid, 2696 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:47:56,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3490 states. [2022-11-03 02:47:57,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3490 to 3490. [2022-11-03 02:47:57,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3490 states, 2446 states have (on average 1.241210139002453) internal successors, (3036), 2506 states have internal predecessors, (3036), 797 states have call successors, (797), 230 states have call predecessors, (797), 231 states have return successors, (1159), 771 states have call predecessors, (1159), 795 states have call successors, (1159) [2022-11-03 02:47:57,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3490 states to 3490 states and 4992 transitions. [2022-11-03 02:47:57,046 INFO L78 Accepts]: Start accepts. Automaton has 3490 states and 4992 transitions. Word has length 153 [2022-11-03 02:47:57,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:47:57,047 INFO L495 AbstractCegarLoop]: Abstraction has 3490 states and 4992 transitions. [2022-11-03 02:47:57,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2022-11-03 02:47:57,047 INFO L276 IsEmpty]: Start isEmpty. Operand 3490 states and 4992 transitions. [2022-11-03 02:47:57,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-11-03 02:47:57,048 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:47:57,049 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:47:57,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2022-11-03 02:47:57,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:47:57,261 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:47:57,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:47:57,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1070121851, now seen corresponding path program 1 times [2022-11-03 02:47:57,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:47:57,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [559760058] [2022-11-03 02:47:57,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:47:57,262 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:47:57,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:47:57,263 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:47:57,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2022-11-03 02:47:58,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:47:58,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 1354 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 02:47:58,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:47:59,570 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2022-11-03 02:47:59,571 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:47:59,571 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:47:59,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [559760058] [2022-11-03 02:47:59,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [559760058] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:47:59,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:47:59,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:47:59,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125870041] [2022-11-03 02:47:59,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:47:59,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:47:59,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:47:59,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:47:59,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:47:59,574 INFO L87 Difference]: Start difference. First operand 3490 states and 4992 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 2 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2022-11-03 02:48:00,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:48:00,400 INFO L93 Difference]: Finished difference Result 6863 states and 10510 transitions. [2022-11-03 02:48:00,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:48:00,400 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 2 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 199 [2022-11-03 02:48:00,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:48:00,410 INFO L225 Difference]: With dead ends: 6863 [2022-11-03 02:48:00,410 INFO L226 Difference]: Without dead ends: 3480 [2022-11-03 02:48:00,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:48:00,423 INFO L413 NwaCegarLoop]: 1345 mSDtfsCounter, 1237 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1237 SdHoareTripleChecker+Valid, 1345 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:48:00,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1237 Valid, 1345 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:48:00,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3480 states. [2022-11-03 02:48:01,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3480 to 3480. [2022-11-03 02:48:01,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3480 states, 2437 states have (on average 1.238818219121871) internal successors, (3019), 2496 states have internal predecessors, (3019), 797 states have call successors, (797), 230 states have call predecessors, (797), 231 states have return successors, (1159), 771 states have call predecessors, (1159), 795 states have call successors, (1159) [2022-11-03 02:48:01,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3480 states to 3480 states and 4975 transitions. [2022-11-03 02:48:01,308 INFO L78 Accepts]: Start accepts. Automaton has 3480 states and 4975 transitions. Word has length 199 [2022-11-03 02:48:01,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:48:01,309 INFO L495 AbstractCegarLoop]: Abstraction has 3480 states and 4975 transitions. [2022-11-03 02:48:01,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 2 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2022-11-03 02:48:01,309 INFO L276 IsEmpty]: Start isEmpty. Operand 3480 states and 4975 transitions. [2022-11-03 02:48:01,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-11-03 02:48:01,311 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:48:01,311 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:48:01,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2022-11-03 02:48:01,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:48:01,518 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:48:01,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:48:01,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1923179156, now seen corresponding path program 1 times [2022-11-03 02:48:01,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:48:01,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1125056391] [2022-11-03 02:48:01,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:48:01,520 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:48:01,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:48:01,521 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:48:01,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2022-11-03 02:48:02,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:48:02,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 937 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:48:02,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:48:02,952 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-03 02:48:02,953 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:48:02,953 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:48:02,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1125056391] [2022-11-03 02:48:02,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1125056391] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:48:02,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:48:02,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:48:02,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637004256] [2022-11-03 02:48:02,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:48:02,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:48:02,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:48:02,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:48:02,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:48:02,955 INFO L87 Difference]: Start difference. First operand 3480 states and 4975 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2022-11-03 02:48:03,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:48:03,829 INFO L93 Difference]: Finished difference Result 3480 states and 4975 transitions. [2022-11-03 02:48:03,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:48:03,830 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 159 [2022-11-03 02:48:03,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:48:03,838 INFO L225 Difference]: With dead ends: 3480 [2022-11-03 02:48:03,838 INFO L226 Difference]: Without dead ends: 3478 [2022-11-03 02:48:03,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:48:03,840 INFO L413 NwaCegarLoop]: 1342 mSDtfsCounter, 1202 mSDsluCounter, 1340 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1204 SdHoareTripleChecker+Valid, 2682 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:48:03,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1204 Valid, 2682 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:48:03,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3478 states. [2022-11-03 02:48:04,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3478 to 3478. [2022-11-03 02:48:04,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3478 states, 2436 states have (on average 1.2385057471264367) internal successors, (3017), 2494 states have internal predecessors, (3017), 797 states have call successors, (797), 230 states have call predecessors, (797), 231 states have return successors, (1159), 771 states have call predecessors, (1159), 795 states have call successors, (1159) [2022-11-03 02:48:04,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3478 states to 3478 states and 4973 transitions. [2022-11-03 02:48:04,706 INFO L78 Accepts]: Start accepts. Automaton has 3478 states and 4973 transitions. Word has length 159 [2022-11-03 02:48:04,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:48:04,706 INFO L495 AbstractCegarLoop]: Abstraction has 3478 states and 4973 transitions. [2022-11-03 02:48:04,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2022-11-03 02:48:04,707 INFO L276 IsEmpty]: Start isEmpty. Operand 3478 states and 4973 transitions. [2022-11-03 02:48:04,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-11-03 02:48:04,708 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:48:04,708 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:48:04,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2022-11-03 02:48:04,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:48:04,909 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:48:04,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:48:04,909 INFO L85 PathProgramCache]: Analyzing trace with hash -237149709, now seen corresponding path program 1 times [2022-11-03 02:48:04,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:48:04,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1107392039] [2022-11-03 02:48:04,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:48:04,910 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:48:04,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:48:04,911 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:48:04,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2022-11-03 02:48:05,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:48:05,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 946 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:48:05,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:48:06,421 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-03 02:48:06,421 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:48:06,421 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:48:06,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1107392039] [2022-11-03 02:48:06,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1107392039] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:48:06,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:48:06,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:48:06,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047020583] [2022-11-03 02:48:06,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:48:06,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:48:06,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:48:06,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:48:06,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:48:06,424 INFO L87 Difference]: Start difference. First operand 3478 states and 4973 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2022-11-03 02:48:07,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:48:07,503 INFO L93 Difference]: Finished difference Result 3478 states and 4973 transitions. [2022-11-03 02:48:07,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:48:07,504 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 165 [2022-11-03 02:48:07,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:48:07,511 INFO L225 Difference]: With dead ends: 3478 [2022-11-03 02:48:07,511 INFO L226 Difference]: Without dead ends: 3476 [2022-11-03 02:48:07,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:48:07,513 INFO L413 NwaCegarLoop]: 1340 mSDtfsCounter, 1194 mSDsluCounter, 1338 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1196 SdHoareTripleChecker+Valid, 2678 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:48:07,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1196 Valid, 2678 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:48:07,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3476 states. [2022-11-03 02:48:08,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3476 to 3476. [2022-11-03 02:48:08,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3476 states, 2435 states have (on average 1.2381930184804928) internal successors, (3015), 2492 states have internal predecessors, (3015), 797 states have call successors, (797), 230 states have call predecessors, (797), 231 states have return successors, (1159), 771 states have call predecessors, (1159), 795 states have call successors, (1159) [2022-11-03 02:48:08,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3476 states to 3476 states and 4971 transitions. [2022-11-03 02:48:08,654 INFO L78 Accepts]: Start accepts. Automaton has 3476 states and 4971 transitions. Word has length 165 [2022-11-03 02:48:08,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:48:08,654 INFO L495 AbstractCegarLoop]: Abstraction has 3476 states and 4971 transitions. [2022-11-03 02:48:08,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2022-11-03 02:48:08,654 INFO L276 IsEmpty]: Start isEmpty. Operand 3476 states and 4971 transitions. [2022-11-03 02:48:08,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-11-03 02:48:08,656 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:48:08,656 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:48:08,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2022-11-03 02:48:08,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:48:08,873 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:48:08,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:48:08,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1275868871, now seen corresponding path program 1 times [2022-11-03 02:48:08,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:48:08,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1625823939] [2022-11-03 02:48:08,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:48:08,875 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:48:08,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:48:08,876 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:48:08,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2022-11-03 02:48:09,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:48:09,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 955 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:48:09,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:48:10,365 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-03 02:48:10,365 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:48:10,365 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:48:10,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1625823939] [2022-11-03 02:48:10,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1625823939] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:48:10,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:48:10,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:48:10,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717212470] [2022-11-03 02:48:10,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:48:10,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:48:10,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:48:10,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:48:10,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:48:10,367 INFO L87 Difference]: Start difference. First operand 3476 states and 4971 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-11-03 02:48:11,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:48:11,373 INFO L93 Difference]: Finished difference Result 3476 states and 4971 transitions. [2022-11-03 02:48:11,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:48:11,374 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 171 [2022-11-03 02:48:11,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:48:11,384 INFO L225 Difference]: With dead ends: 3476 [2022-11-03 02:48:11,384 INFO L226 Difference]: Without dead ends: 3474 [2022-11-03 02:48:11,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:48:11,386 INFO L413 NwaCegarLoop]: 1338 mSDtfsCounter, 1186 mSDsluCounter, 1336 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1188 SdHoareTripleChecker+Valid, 2674 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:48:11,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1188 Valid, 2674 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:48:11,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3474 states. [2022-11-03 02:48:12,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3474 to 3474. [2022-11-03 02:48:12,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3474 states, 2434 states have (on average 1.2378800328677075) internal successors, (3013), 2490 states have internal predecessors, (3013), 797 states have call successors, (797), 230 states have call predecessors, (797), 231 states have return successors, (1159), 771 states have call predecessors, (1159), 795 states have call successors, (1159) [2022-11-03 02:48:12,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3474 states to 3474 states and 4969 transitions. [2022-11-03 02:48:12,349 INFO L78 Accepts]: Start accepts. Automaton has 3474 states and 4969 transitions. Word has length 171 [2022-11-03 02:48:12,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:48:12,350 INFO L495 AbstractCegarLoop]: Abstraction has 3474 states and 4969 transitions. [2022-11-03 02:48:12,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-11-03 02:48:12,350 INFO L276 IsEmpty]: Start isEmpty. Operand 3474 states and 4969 transitions. [2022-11-03 02:48:12,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-11-03 02:48:12,351 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:48:12,352 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:48:12,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2022-11-03 02:48:12,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:48:12,552 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:48:12,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:48:12,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1329664258, now seen corresponding path program 1 times [2022-11-03 02:48:12,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:48:12,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2073657079] [2022-11-03 02:48:12,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:48:12,554 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:48:12,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:48:12,555 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:48:12,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2022-11-03 02:48:13,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:48:13,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 964 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:48:13,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:48:14,139 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-03 02:48:14,139 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:48:14,139 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:48:14,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2073657079] [2022-11-03 02:48:14,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2073657079] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:48:14,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:48:14,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:48:14,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321458562] [2022-11-03 02:48:14,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:48:14,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:48:14,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:48:14,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:48:14,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:48:14,142 INFO L87 Difference]: Start difference. First operand 3474 states and 4969 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2022-11-03 02:48:15,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:48:15,201 INFO L93 Difference]: Finished difference Result 3474 states and 4969 transitions. [2022-11-03 02:48:15,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:48:15,201 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 177 [2022-11-03 02:48:15,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:48:15,209 INFO L225 Difference]: With dead ends: 3474 [2022-11-03 02:48:15,209 INFO L226 Difference]: Without dead ends: 3472 [2022-11-03 02:48:15,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:48:15,210 INFO L413 NwaCegarLoop]: 1336 mSDtfsCounter, 1178 mSDsluCounter, 1334 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1180 SdHoareTripleChecker+Valid, 2670 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:48:15,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1180 Valid, 2670 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:48:15,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3472 states. [2022-11-03 02:48:16,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3472 to 3472. [2022-11-03 02:48:16,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3472 states, 2433 states have (on average 1.237566789971229) internal successors, (3011), 2488 states have internal predecessors, (3011), 797 states have call successors, (797), 230 states have call predecessors, (797), 231 states have return successors, (1159), 771 states have call predecessors, (1159), 795 states have call successors, (1159) [2022-11-03 02:48:16,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3472 states to 3472 states and 4967 transitions. [2022-11-03 02:48:16,364 INFO L78 Accepts]: Start accepts. Automaton has 3472 states and 4967 transitions. Word has length 177 [2022-11-03 02:48:16,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:48:16,364 INFO L495 AbstractCegarLoop]: Abstraction has 3472 states and 4967 transitions. [2022-11-03 02:48:16,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2022-11-03 02:48:16,365 INFO L276 IsEmpty]: Start isEmpty. Operand 3472 states and 4967 transitions. [2022-11-03 02:48:16,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-11-03 02:48:16,367 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:48:16,367 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:48:16,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2022-11-03 02:48:16,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:48:16,587 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:48:16,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:48:16,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1980239501, now seen corresponding path program 1 times [2022-11-03 02:48:16,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:48:16,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1974286603] [2022-11-03 02:48:16,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:48:16,588 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:48:16,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:48:16,589 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:48:16,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2022-11-03 02:48:17,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:48:17,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 973 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:48:17,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:48:18,104 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-03 02:48:18,104 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:48:18,104 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:48:18,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1974286603] [2022-11-03 02:48:18,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1974286603] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:48:18,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:48:18,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:48:18,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917143216] [2022-11-03 02:48:18,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:48:18,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:48:18,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:48:18,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:48:18,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:48:18,107 INFO L87 Difference]: Start difference. First operand 3472 states and 4967 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-03 02:48:19,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:48:19,151 INFO L93 Difference]: Finished difference Result 3472 states and 4967 transitions. [2022-11-03 02:48:19,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:48:19,151 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 183 [2022-11-03 02:48:19,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:48:19,159 INFO L225 Difference]: With dead ends: 3472 [2022-11-03 02:48:19,159 INFO L226 Difference]: Without dead ends: 3470 [2022-11-03 02:48:19,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:48:19,161 INFO L413 NwaCegarLoop]: 1334 mSDtfsCounter, 1170 mSDsluCounter, 1332 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1172 SdHoareTripleChecker+Valid, 2666 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:48:19,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1172 Valid, 2666 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:48:19,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3470 states. [2022-11-03 02:48:20,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3470 to 3470. [2022-11-03 02:48:20,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3470 states, 2432 states have (on average 1.2372532894736843) internal successors, (3009), 2486 states have internal predecessors, (3009), 797 states have call successors, (797), 230 states have call predecessors, (797), 231 states have return successors, (1159), 771 states have call predecessors, (1159), 795 states have call successors, (1159) [2022-11-03 02:48:20,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3470 states to 3470 states and 4965 transitions. [2022-11-03 02:48:20,268 INFO L78 Accepts]: Start accepts. Automaton has 3470 states and 4965 transitions. Word has length 183 [2022-11-03 02:48:20,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:48:20,269 INFO L495 AbstractCegarLoop]: Abstraction has 3470 states and 4965 transitions. [2022-11-03 02:48:20,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-03 02:48:20,269 INFO L276 IsEmpty]: Start isEmpty. Operand 3470 states and 4965 transitions. [2022-11-03 02:48:20,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-11-03 02:48:20,273 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:48:20,273 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:48:20,301 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2022-11-03 02:48:20,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:48:20,498 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_linux_usb_dev_usb_put_devErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:48:20,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:48:20,498 INFO L85 PathProgramCache]: Analyzing trace with hash 2034744335, now seen corresponding path program 1 times [2022-11-03 02:48:20,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:48:20,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [772528096] [2022-11-03 02:48:20,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:48:20,500 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:48:20,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:48:20,501 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:48:20,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2022-11-03 02:48:22,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:48:22,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 1423 conjuncts, 79 conjunts are in the unsatisfiable core [2022-11-03 02:48:22,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:48:23,044 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 02:48:23,055 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 02:48:24,481 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2022-11-03 02:48:24,485 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2022-11-03 02:48:25,601 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 168 proven. 22 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-11-03 02:48:25,601 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:48:27,622 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 389 trivial. 0 not checked. [2022-11-03 02:48:27,622 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:48:27,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [772528096] [2022-11-03 02:48:27,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [772528096] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-03 02:48:27,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:48:27,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [25] total 32 [2022-11-03 02:48:27,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320096754] [2022-11-03 02:48:27,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:48:27,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 02:48:27,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:48:27,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 02:48:27,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=916, Unknown=0, NotChecked=0, Total=992 [2022-11-03 02:48:27,624 INFO L87 Difference]: Start difference. First operand 3470 states and 4965 transitions. Second operand has 9 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 3 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) [2022-11-03 02:48:35,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:48:35,101 INFO L93 Difference]: Finished difference Result 6473 states and 9275 transitions. [2022-11-03 02:48:35,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 02:48:35,103 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 3 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 228 [2022-11-03 02:48:35,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:48:35,120 INFO L225 Difference]: With dead ends: 6473 [2022-11-03 02:48:35,120 INFO L226 Difference]: Without dead ends: 4773 [2022-11-03 02:48:35,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 419 SyntacticMatches, 5 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=108, Invalid=1224, Unknown=0, NotChecked=0, Total=1332 [2022-11-03 02:48:35,128 INFO L413 NwaCegarLoop]: 2358 mSDtfsCounter, 1624 mSDsluCounter, 12848 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1021 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1624 SdHoareTripleChecker+Valid, 15206 SdHoareTripleChecker+Invalid, 1094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1021 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:48:35,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1624 Valid, 15206 Invalid, 1094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1021 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-03 02:48:35,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4773 states. [2022-11-03 02:48:36,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4773 to 3474. [2022-11-03 02:48:36,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3474 states, 2435 states have (on average 1.2369609856262833) internal successors, (3012), 2489 states have internal predecessors, (3012), 797 states have call successors, (797), 231 states have call predecessors, (797), 232 states have return successors, (1159), 771 states have call predecessors, (1159), 795 states have call successors, (1159) [2022-11-03 02:48:36,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3474 states to 3474 states and 4968 transitions. [2022-11-03 02:48:36,417 INFO L78 Accepts]: Start accepts. Automaton has 3474 states and 4968 transitions. Word has length 228 [2022-11-03 02:48:36,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:48:36,418 INFO L495 AbstractCegarLoop]: Abstraction has 3474 states and 4968 transitions. [2022-11-03 02:48:36,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 3 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) [2022-11-03 02:48:36,418 INFO L276 IsEmpty]: Start isEmpty. Operand 3474 states and 4968 transitions. [2022-11-03 02:48:36,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-11-03 02:48:36,420 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:48:36,420 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:48:36,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2022-11-03 02:48:36,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:48:36,621 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:48:36,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:48:36,621 INFO L85 PathProgramCache]: Analyzing trace with hash -35351330, now seen corresponding path program 1 times [2022-11-03 02:48:36,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:48:36,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1858985580] [2022-11-03 02:48:36,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:48:36,622 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:48:36,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:48:36,624 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:48:36,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2022-11-03 02:48:37,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:48:37,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 982 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:48:37,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:48:38,278 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-03 02:48:38,279 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:48:38,279 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:48:38,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1858985580] [2022-11-03 02:48:38,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1858985580] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:48:38,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:48:38,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:48:38,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719293776] [2022-11-03 02:48:38,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:48:38,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:48:38,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:48:38,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:48:38,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:48:38,282 INFO L87 Difference]: Start difference. First operand 3474 states and 4968 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2022-11-03 02:48:40,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:48:40,411 INFO L93 Difference]: Finished difference Result 6801 states and 10383 transitions. [2022-11-03 02:48:40,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:48:40,412 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) Word has length 189 [2022-11-03 02:48:40,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:48:40,429 INFO L225 Difference]: With dead ends: 6801 [2022-11-03 02:48:40,429 INFO L226 Difference]: Without dead ends: 6610 [2022-11-03 02:48:40,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:48:40,431 INFO L413 NwaCegarLoop]: 1650 mSDtfsCounter, 1159 mSDsluCounter, 2949 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1159 SdHoareTripleChecker+Valid, 4599 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:48:40,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1159 Valid, 4599 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:48:40,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6610 states. [2022-11-03 02:48:42,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6610 to 6584. [2022-11-03 02:48:42,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6584 states, 4633 states have (on average 1.2447658104899633) internal successors, (5767), 4725 states have internal predecessors, (5767), 1505 states have call successors, (1505), 434 states have call predecessors, (1505), 436 states have return successors, (2867), 1460 states have call predecessors, (2867), 1501 states have call successors, (2867) [2022-11-03 02:48:42,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6584 states to 6584 states and 10139 transitions. [2022-11-03 02:48:42,768 INFO L78 Accepts]: Start accepts. Automaton has 6584 states and 10139 transitions. Word has length 189 [2022-11-03 02:48:42,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:48:42,768 INFO L495 AbstractCegarLoop]: Abstraction has 6584 states and 10139 transitions. [2022-11-03 02:48:42,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2022-11-03 02:48:42,768 INFO L276 IsEmpty]: Start isEmpty. Operand 6584 states and 10139 transitions. [2022-11-03 02:48:42,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2022-11-03 02:48:42,770 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:48:42,770 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:48:42,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2022-11-03 02:48:42,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:48:42,971 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:48:42,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:48:42,971 INFO L85 PathProgramCache]: Analyzing trace with hash 267073423, now seen corresponding path program 1 times [2022-11-03 02:48:42,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:48:42,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [751828793] [2022-11-03 02:48:42,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:48:42,972 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:48:42,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:48:42,973 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:48:42,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2022-11-03 02:48:44,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:48:44,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 1559 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-03 02:48:44,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:48:45,260 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 389 trivial. 0 not checked. [2022-11-03 02:48:45,260 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:48:45,260 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:48:45,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [751828793] [2022-11-03 02:48:45,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [751828793] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:48:45,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:48:45,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-03 02:48:45,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811954829] [2022-11-03 02:48:45,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:48:45,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-03 02:48:45,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:48:45,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-03 02:48:45,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-03 02:48:45,263 INFO L87 Difference]: Start difference. First operand 6584 states and 10139 transitions. Second operand has 10 states, 10 states have (on average 10.4) internal successors, (104), 8 states have internal predecessors, (104), 3 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (30), 5 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-03 02:48:49,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:48:49,551 INFO L93 Difference]: Finished difference Result 15298 states and 24107 transitions. [2022-11-03 02:48:49,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 02:48:49,552 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 8 states have internal predecessors, (104), 3 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (30), 5 states have call predecessors, (30), 3 states have call successors, (30) Word has length 256 [2022-11-03 02:48:49,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:48:49,591 INFO L225 Difference]: With dead ends: 15298 [2022-11-03 02:48:49,591 INFO L226 Difference]: Without dead ends: 8801 [2022-11-03 02:48:49,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-03 02:48:49,617 INFO L413 NwaCegarLoop]: 1835 mSDtfsCounter, 303 mSDsluCounter, 14252 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 16087 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:48:49,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 16087 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-03 02:48:49,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8801 states. [2022-11-03 02:48:52,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8801 to 6606. [2022-11-03 02:48:52,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6606 states, 4649 states have (on average 1.2439234243923425) internal successors, (5783), 4741 states have internal predecessors, (5783), 1507 states have call successors, (1507), 434 states have call predecessors, (1507), 440 states have return successors, (2875), 1466 states have call predecessors, (2875), 1503 states have call successors, (2875) [2022-11-03 02:48:52,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6606 states to 6606 states and 10165 transitions. [2022-11-03 02:48:52,120 INFO L78 Accepts]: Start accepts. Automaton has 6606 states and 10165 transitions. Word has length 256 [2022-11-03 02:48:52,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:48:52,120 INFO L495 AbstractCegarLoop]: Abstraction has 6606 states and 10165 transitions. [2022-11-03 02:48:52,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 8 states have internal predecessors, (104), 3 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (30), 5 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-03 02:48:52,121 INFO L276 IsEmpty]: Start isEmpty. Operand 6606 states and 10165 transitions. [2022-11-03 02:48:52,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2022-11-03 02:48:52,123 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:48:52,123 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:48:52,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2022-11-03 02:48:52,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:48:52,337 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:48:52,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:48:52,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1066095324, now seen corresponding path program 1 times [2022-11-03 02:48:52,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:48:52,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [421258082] [2022-11-03 02:48:52,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:48:52,339 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:48:52,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:48:52,340 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:48:52,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2022-11-03 02:48:53,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:48:54,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 1614 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 02:48:54,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:48:54,448 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2022-11-03 02:48:54,449 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:48:54,449 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:48:54,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [421258082] [2022-11-03 02:48:54,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [421258082] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:48:54,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:48:54,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 02:48:54,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820102827] [2022-11-03 02:48:54,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:48:54,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-03 02:48:54,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:48:54,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-03 02:48:54,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2022-11-03 02:48:54,451 INFO L87 Difference]: Start difference. First operand 6606 states and 10165 transitions. Second operand has 14 states, 13 states have (on average 7.538461538461538) internal successors, (98), 13 states have internal predecessors, (98), 6 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (29), 6 states have call predecessors, (29), 6 states have call successors, (29) [2022-11-03 02:49:00,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:49:00,372 INFO L93 Difference]: Finished difference Result 15004 states and 23601 transitions. [2022-11-03 02:49:00,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-03 02:49:00,373 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.538461538461538) internal successors, (98), 13 states have internal predecessors, (98), 6 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (29), 6 states have call predecessors, (29), 6 states have call successors, (29) Word has length 258 [2022-11-03 02:49:00,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:49:00,403 INFO L225 Difference]: With dead ends: 15004 [2022-11-03 02:49:00,403 INFO L226 Difference]: Without dead ends: 8805 [2022-11-03 02:49:00,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=88, Invalid=374, Unknown=0, NotChecked=0, Total=462 [2022-11-03 02:49:00,423 INFO L413 NwaCegarLoop]: 1399 mSDtfsCounter, 1845 mSDsluCounter, 16060 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 702 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1845 SdHoareTripleChecker+Valid, 17459 SdHoareTripleChecker+Invalid, 1162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 702 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:49:00,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1845 Valid, 17459 Invalid, 1162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [702 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-03 02:49:00,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8805 states. [2022-11-03 02:49:03,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8805 to 6734. [2022-11-03 02:49:03,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6734 states, 4737 states have (on average 1.2393920202659912) internal successors, (5871), 4829 states have internal predecessors, (5871), 1547 states have call successors, (1547), 434 states have call predecessors, (1547), 440 states have return successors, (2915), 1506 states have call predecessors, (2915), 1543 states have call successors, (2915) [2022-11-03 02:49:03,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6734 states to 6734 states and 10333 transitions. [2022-11-03 02:49:03,496 INFO L78 Accepts]: Start accepts. Automaton has 6734 states and 10333 transitions. Word has length 258 [2022-11-03 02:49:03,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:49:03,497 INFO L495 AbstractCegarLoop]: Abstraction has 6734 states and 10333 transitions. [2022-11-03 02:49:03,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.538461538461538) internal successors, (98), 13 states have internal predecessors, (98), 6 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (29), 6 states have call predecessors, (29), 6 states have call successors, (29) [2022-11-03 02:49:03,497 INFO L276 IsEmpty]: Start isEmpty. Operand 6734 states and 10333 transitions. [2022-11-03 02:49:03,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-11-03 02:49:03,498 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:49:03,499 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:49:03,526 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2022-11-03 02:49:03,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:49:03,700 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:49:03,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:49:03,700 INFO L85 PathProgramCache]: Analyzing trace with hash -598386640, now seen corresponding path program 1 times [2022-11-03 02:49:03,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:49:03,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [945467000] [2022-11-03 02:49:03,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:49:03,702 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:49:03,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:49:03,703 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:49:03,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2022-11-03 02:49:05,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:49:05,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 1606 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-03 02:49:05,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:49:06,541 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2022-11-03 02:49:06,541 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:49:06,541 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:49:06,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [945467000] [2022-11-03 02:49:06,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [945467000] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:49:06,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:49:06,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:49:06,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222329724] [2022-11-03 02:49:06,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:49:06,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:49:06,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:49:06,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:49:06,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:49:06,544 INFO L87 Difference]: Start difference. First operand 6734 states and 10333 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2022-11-03 02:49:09,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:49:09,425 INFO L93 Difference]: Finished difference Result 6790 states and 10373 transitions. [2022-11-03 02:49:09,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:49:09,426 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 277 [2022-11-03 02:49:09,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:49:09,443 INFO L225 Difference]: With dead ends: 6790 [2022-11-03 02:49:09,443 INFO L226 Difference]: Without dead ends: 6788 [2022-11-03 02:49:09,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:49:09,446 INFO L413 NwaCegarLoop]: 1326 mSDtfsCounter, 1119 mSDsluCounter, 2692 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1120 SdHoareTripleChecker+Valid, 4018 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:49:09,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1120 Valid, 4018 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:49:09,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6788 states. [2022-11-03 02:49:12,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6788 to 6788. [2022-11-03 02:49:12,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6788 states, 4776 states have (on average 1.2357621440536013) internal successors, (5902), 4867 states have internal predecessors, (5902), 1547 states have call successors, (1547), 450 states have call predecessors, (1547), 456 states have return successors, (2915), 1506 states have call predecessors, (2915), 1543 states have call successors, (2915) [2022-11-03 02:49:12,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6788 states to 6788 states and 10364 transitions. [2022-11-03 02:49:12,053 INFO L78 Accepts]: Start accepts. Automaton has 6788 states and 10364 transitions. Word has length 277 [2022-11-03 02:49:12,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:49:12,054 INFO L495 AbstractCegarLoop]: Abstraction has 6788 states and 10364 transitions. [2022-11-03 02:49:12,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2022-11-03 02:49:12,054 INFO L276 IsEmpty]: Start isEmpty. Operand 6788 states and 10364 transitions. [2022-11-03 02:49:12,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-11-03 02:49:12,056 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:49:12,056 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:49:12,085 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (45)] Forceful destruction successful, exit code 0 [2022-11-03 02:49:12,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:49:12,257 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:49:12,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:49:12,257 INFO L85 PathProgramCache]: Analyzing trace with hash -349761203, now seen corresponding path program 1 times [2022-11-03 02:49:12,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:49:12,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [709905263] [2022-11-03 02:49:12,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:49:12,259 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:49:12,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:49:12,260 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:49:12,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2022-11-03 02:49:14,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:49:14,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 1644 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 02:49:14,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:49:14,270 INFO L134 CoverageAnalysis]: Checked inductivity of 569 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2022-11-03 02:49:14,271 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:49:14,271 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:49:14,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [709905263] [2022-11-03 02:49:14,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [709905263] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:49:14,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:49:14,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:49:14,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779029339] [2022-11-03 02:49:14,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:49:14,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:49:14,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:49:14,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:49:14,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:49:14,275 INFO L87 Difference]: Start difference. First operand 6788 states and 10364 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (41), 3 states have call predecessors, (41), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-11-03 02:49:17,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:49:17,088 INFO L93 Difference]: Finished difference Result 6788 states and 10364 transitions. [2022-11-03 02:49:17,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:49:17,088 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (41), 3 states have call predecessors, (41), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 298 [2022-11-03 02:49:17,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:49:17,109 INFO L225 Difference]: With dead ends: 6788 [2022-11-03 02:49:17,109 INFO L226 Difference]: Without dead ends: 6786 [2022-11-03 02:49:17,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:49:17,112 INFO L413 NwaCegarLoop]: 1329 mSDtfsCounter, 35 mSDsluCounter, 3943 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 5272 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:49:17,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 5272 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:49:17,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6786 states. [2022-11-03 02:49:20,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6786 to 6786. [2022-11-03 02:49:20,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6786 states, 4775 states have (on average 1.2341361256544503) internal successors, (5893), 4865 states have internal predecessors, (5893), 1547 states have call successors, (1547), 450 states have call predecessors, (1547), 456 states have return successors, (2915), 1506 states have call predecessors, (2915), 1543 states have call successors, (2915) [2022-11-03 02:49:20,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6786 states to 6786 states and 10355 transitions. [2022-11-03 02:49:20,137 INFO L78 Accepts]: Start accepts. Automaton has 6786 states and 10355 transitions. Word has length 298 [2022-11-03 02:49:20,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:49:20,137 INFO L495 AbstractCegarLoop]: Abstraction has 6786 states and 10355 transitions. [2022-11-03 02:49:20,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (41), 3 states have call predecessors, (41), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-11-03 02:49:20,138 INFO L276 IsEmpty]: Start isEmpty. Operand 6786 states and 10355 transitions. [2022-11-03 02:49:20,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2022-11-03 02:49:20,141 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:49:20,141 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:49:20,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (46)] Forceful destruction successful, exit code 0 [2022-11-03 02:49:20,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:49:20,342 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:49:20,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:49:20,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1050537904, now seen corresponding path program 1 times [2022-11-03 02:49:20,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:49:20,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1371374883] [2022-11-03 02:49:20,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:49:20,345 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:49:20,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:49:20,345 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:49:20,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2022-11-03 02:49:22,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:49:22,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 1887 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 02:49:22,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:49:22,596 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 525 trivial. 0 not checked. [2022-11-03 02:49:22,596 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:49:22,596 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:49:22,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1371374883] [2022-11-03 02:49:22,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1371374883] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:49:22,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:49:22,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:49:22,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518112312] [2022-11-03 02:49:22,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:49:22,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:49:22,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:49:22,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:49:22,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:49:22,599 INFO L87 Difference]: Start difference. First operand 6786 states and 10355 transitions. Second operand has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 5 states have internal predecessors, (119), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 3 states have call predecessors, (38), 2 states have call successors, (38) [2022-11-03 02:49:27,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:49:27,973 INFO L93 Difference]: Finished difference Result 15538 states and 24322 transitions. [2022-11-03 02:49:27,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:49:27,974 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 5 states have internal predecessors, (119), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 3 states have call predecessors, (38), 2 states have call successors, (38) Word has length 301 [2022-11-03 02:49:27,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:49:28,003 INFO L225 Difference]: With dead ends: 15538 [2022-11-03 02:49:28,003 INFO L226 Difference]: Without dead ends: 9005 [2022-11-03 02:49:28,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:49:28,025 INFO L413 NwaCegarLoop]: 1777 mSDtfsCounter, 543 mSDsluCounter, 6360 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 543 SdHoareTripleChecker+Valid, 8137 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:49:28,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [543 Valid, 8137 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-03 02:49:28,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9005 states. [2022-11-03 02:49:30,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9005 to 6796. [2022-11-03 02:49:30,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6796 states, 4783 states have (on average 1.23374451181267) internal successors, (5901), 4873 states have internal predecessors, (5901), 1547 states have call successors, (1547), 450 states have call predecessors, (1547), 458 states have return successors, (2921), 1508 states have call predecessors, (2921), 1543 states have call successors, (2921) [2022-11-03 02:49:30,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6796 states to 6796 states and 10369 transitions. [2022-11-03 02:49:30,651 INFO L78 Accepts]: Start accepts. Automaton has 6796 states and 10369 transitions. Word has length 301 [2022-11-03 02:49:30,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:49:30,652 INFO L495 AbstractCegarLoop]: Abstraction has 6796 states and 10369 transitions. [2022-11-03 02:49:30,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 5 states have internal predecessors, (119), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 3 states have call predecessors, (38), 2 states have call successors, (38) [2022-11-03 02:49:30,652 INFO L276 IsEmpty]: Start isEmpty. Operand 6796 states and 10369 transitions. [2022-11-03 02:49:30,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2022-11-03 02:49:30,655 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:49:30,655 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:49:30,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (47)] Forceful destruction successful, exit code 0 [2022-11-03 02:49:30,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:49:30,856 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:49:30,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:49:30,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1048059142, now seen corresponding path program 1 times [2022-11-03 02:49:30,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:49:30,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1787886957] [2022-11-03 02:49:30,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:49:30,858 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:49:30,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:49:30,858 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:49:30,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2022-11-03 02:49:32,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:49:32,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-03 02:49:32,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:49:32,867 INFO L134 CoverageAnalysis]: Checked inductivity of 893 backedges. 332 proven. 0 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2022-11-03 02:49:32,867 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:49:32,867 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:49:32,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1787886957] [2022-11-03 02:49:32,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1787886957] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:49:32,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:49:32,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 02:49:32,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250182331] [2022-11-03 02:49:32,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:49:32,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:49:32,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:49:32,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:49:32,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:49:32,869 INFO L87 Difference]: Start difference. First operand 6796 states and 10369 transitions. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 3 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2022-11-03 02:49:36,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:49:36,395 INFO L93 Difference]: Finished difference Result 12723 states and 19463 transitions. [2022-11-03 02:49:36,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:49:36,396 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 3 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) Word has length 327 [2022-11-03 02:49:36,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:49:36,425 INFO L225 Difference]: With dead ends: 12723 [2022-11-03 02:49:36,425 INFO L226 Difference]: Without dead ends: 6796 [2022-11-03 02:49:36,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 321 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:49:36,446 INFO L413 NwaCegarLoop]: 1320 mSDtfsCounter, 1418 mSDsluCounter, 4608 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 523 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1418 SdHoareTripleChecker+Valid, 5928 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 523 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:49:36,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1418 Valid, 5928 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [523 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-03 02:49:36,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6796 states. [2022-11-03 02:49:39,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6796 to 6796. [2022-11-03 02:49:39,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6796 states, 4783 states have (on average 1.23207192138825) internal successors, (5893), 4873 states have internal predecessors, (5893), 1547 states have call successors, (1547), 450 states have call predecessors, (1547), 458 states have return successors, (2921), 1508 states have call predecessors, (2921), 1543 states have call successors, (2921) [2022-11-03 02:49:39,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6796 states to 6796 states and 10361 transitions. [2022-11-03 02:49:39,144 INFO L78 Accepts]: Start accepts. Automaton has 6796 states and 10361 transitions. Word has length 327 [2022-11-03 02:49:39,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:49:39,144 INFO L495 AbstractCegarLoop]: Abstraction has 6796 states and 10361 transitions. [2022-11-03 02:49:39,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 3 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2022-11-03 02:49:39,145 INFO L276 IsEmpty]: Start isEmpty. Operand 6796 states and 10361 transitions. [2022-11-03 02:49:39,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2022-11-03 02:49:39,149 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:49:39,149 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:49:39,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (48)] Forceful destruction successful, exit code 0 [2022-11-03 02:49:39,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:49:39,360 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:49:39,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:49:39,361 INFO L85 PathProgramCache]: Analyzing trace with hash 303326076, now seen corresponding path program 1 times [2022-11-03 02:49:39,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:49:39,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [768406693] [2022-11-03 02:49:39,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:49:39,362 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:49:39,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:49:39,363 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:49:39,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2022-11-03 02:49:41,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:49:41,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-03 02:49:41,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:49:41,343 INFO L134 CoverageAnalysis]: Checked inductivity of 893 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 893 trivial. 0 not checked. [2022-11-03 02:49:41,343 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:49:41,343 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:49:41,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [768406693] [2022-11-03 02:49:41,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [768406693] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:49:41,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:49:41,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:49:41,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6810782] [2022-11-03 02:49:41,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:49:41,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:49:41,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:49:41,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:49:41,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:49:41,346 INFO L87 Difference]: Start difference. First operand 6796 states and 10361 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (38), 1 states have call predecessors, (38), 2 states have return successors, (37), 2 states have call predecessors, (37), 1 states have call successors, (37) [2022-11-03 02:49:43,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:49:46,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:49:46,438 INFO L93 Difference]: Finished difference Result 13331 states and 21424 transitions. [2022-11-03 02:49:46,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:49:46,439 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (38), 1 states have call predecessors, (38), 2 states have return successors, (37), 2 states have call predecessors, (37), 1 states have call successors, (37) Word has length 327 [2022-11-03 02:49:46,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:49:46,461 INFO L225 Difference]: With dead ends: 13331 [2022-11-03 02:49:46,462 INFO L226 Difference]: Without dead ends: 6844 [2022-11-03 02:49:46,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:49:46,493 INFO L413 NwaCegarLoop]: 1336 mSDtfsCounter, 2 mSDsluCounter, 3992 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 5328 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:49:46,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 5328 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-11-03 02:49:46,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6844 states. [2022-11-03 02:49:49,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6844 to 6828. [2022-11-03 02:49:49,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6828 states, 4807 states have (on average 1.2309132515082173) internal successors, (5917), 4897 states have internal predecessors, (5917), 1547 states have call successors, (1547), 450 states have call predecessors, (1547), 466 states have return successors, (2945), 1516 states have call predecessors, (2945), 1543 states have call successors, (2945) [2022-11-03 02:49:49,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6828 states to 6828 states and 10409 transitions. [2022-11-03 02:49:49,265 INFO L78 Accepts]: Start accepts. Automaton has 6828 states and 10409 transitions. Word has length 327 [2022-11-03 02:49:49,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:49:49,266 INFO L495 AbstractCegarLoop]: Abstraction has 6828 states and 10409 transitions. [2022-11-03 02:49:49,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (38), 1 states have call predecessors, (38), 2 states have return successors, (37), 2 states have call predecessors, (37), 1 states have call successors, (37) [2022-11-03 02:49:49,266 INFO L276 IsEmpty]: Start isEmpty. Operand 6828 states and 10409 transitions. [2022-11-03 02:49:49,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2022-11-03 02:49:49,270 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:49:49,270 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:49:49,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (49)] Forceful destruction successful, exit code 0 [2022-11-03 02:49:49,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:49:49,471 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting destroy_asyncErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:49:49,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:49:49,471 INFO L85 PathProgramCache]: Analyzing trace with hash -400274372, now seen corresponding path program 1 times [2022-11-03 02:49:49,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:49:49,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1206036326] [2022-11-03 02:49:49,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:49:49,472 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:49:49,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:49:49,473 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:49:49,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2022-11-03 02:49:51,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:49:51,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 1938 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-03 02:49:51,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:49:51,889 INFO L134 CoverageAnalysis]: Checked inductivity of 674 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 656 trivial. 0 not checked. [2022-11-03 02:49:51,889 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:49:51,889 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:49:51,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1206036326] [2022-11-03 02:49:51,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1206036326] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:49:51,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:49:51,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:49:51,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892166911] [2022-11-03 02:49:51,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:49:51,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:49:51,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:49:51,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:49:51,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:49:51,891 INFO L87 Difference]: Start difference. First operand 6828 states and 10409 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 2 states have call successors, (46), 2 states have call predecessors, (46), 3 states have return successors, (41), 3 states have call predecessors, (41), 2 states have call successors, (41) [2022-11-03 02:49:54,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:49:54,579 INFO L93 Difference]: Finished difference Result 13563 states and 22981 transitions. [2022-11-03 02:49:54,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:49:54,580 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 2 states have call successors, (46), 2 states have call predecessors, (46), 3 states have return successors, (41), 3 states have call predecessors, (41), 2 states have call successors, (41) Word has length 335 [2022-11-03 02:49:54,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:49:54,604 INFO L225 Difference]: With dead ends: 13563 [2022-11-03 02:49:54,604 INFO L226 Difference]: Without dead ends: 6860 [2022-11-03 02:49:54,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:49:54,634 INFO L413 NwaCegarLoop]: 1340 mSDtfsCounter, 2 mSDsluCounter, 4007 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 5347 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:49:54,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 5347 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:49:54,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6860 states. [2022-11-03 02:49:57,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6860 to 6844. [2022-11-03 02:49:57,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6844 states, 4823 states have (on average 1.2301472112792868) internal successors, (5933), 4905 states have internal predecessors, (5933), 1547 states have call successors, (1547), 450 states have call predecessors, (1547), 466 states have return successors, (2945), 1524 states have call predecessors, (2945), 1543 states have call successors, (2945) [2022-11-03 02:49:57,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6844 states to 6844 states and 10425 transitions. [2022-11-03 02:49:57,270 INFO L78 Accepts]: Start accepts. Automaton has 6844 states and 10425 transitions. Word has length 335 [2022-11-03 02:49:57,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:49:57,271 INFO L495 AbstractCegarLoop]: Abstraction has 6844 states and 10425 transitions. [2022-11-03 02:49:57,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 2 states have call successors, (46), 2 states have call predecessors, (46), 3 states have return successors, (41), 3 states have call predecessors, (41), 2 states have call successors, (41) [2022-11-03 02:49:57,271 INFO L276 IsEmpty]: Start isEmpty. Operand 6844 states and 10425 transitions. [2022-11-03 02:49:57,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2022-11-03 02:49:57,279 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:49:57,280 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:49:57,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (50)] Forceful destruction successful, exit code 0 [2022-11-03 02:49:57,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:49:57,497 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting destroy_asyncErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:49:57,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:49:57,497 INFO L85 PathProgramCache]: Analyzing trace with hash 444170430, now seen corresponding path program 1 times [2022-11-03 02:49:57,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:49:57,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1950673926] [2022-11-03 02:49:57,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:49:57,499 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:49:57,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:49:57,501 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:49:57,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2022-11-03 02:49:59,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:49:59,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 1881 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 02:49:59,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:49:59,911 INFO L134 CoverageAnalysis]: Checked inductivity of 656 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 644 trivial. 0 not checked. [2022-11-03 02:49:59,911 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:49:59,911 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:49:59,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1950673926] [2022-11-03 02:49:59,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1950673926] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:49:59,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:49:59,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:49:59,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981523481] [2022-11-03 02:49:59,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:49:59,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:49:59,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:49:59,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:49:59,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:49:59,914 INFO L87 Difference]: Start difference. First operand 6844 states and 10425 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2022-11-03 02:50:02,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:50:02,680 INFO L93 Difference]: Finished difference Result 13619 states and 22655 transitions. [2022-11-03 02:50:02,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:50:02,680 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) Word has length 353 [2022-11-03 02:50:02,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:50:02,706 INFO L225 Difference]: With dead ends: 13619 [2022-11-03 02:50:02,706 INFO L226 Difference]: Without dead ends: 6900 [2022-11-03 02:50:02,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 349 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:50:02,741 INFO L413 NwaCegarLoop]: 1323 mSDtfsCounter, 10 mSDsluCounter, 3966 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 5289 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:50:02,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 5289 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:50:02,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6900 states. [2022-11-03 02:50:05,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6900 to 6882. [2022-11-03 02:50:05,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6882 states, 4854 states have (on average 1.2286773794808405) internal successors, (5964), 4943 states have internal predecessors, (5964), 1547 states have call successors, (1547), 450 states have call predecessors, (1547), 473 states have return successors, (2952), 1524 states have call predecessors, (2952), 1543 states have call successors, (2952) [2022-11-03 02:50:05,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6882 states to 6882 states and 10463 transitions. [2022-11-03 02:50:05,334 INFO L78 Accepts]: Start accepts. Automaton has 6882 states and 10463 transitions. Word has length 353 [2022-11-03 02:50:05,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:50:05,334 INFO L495 AbstractCegarLoop]: Abstraction has 6882 states and 10463 transitions. [2022-11-03 02:50:05,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2022-11-03 02:50:05,335 INFO L276 IsEmpty]: Start isEmpty. Operand 6882 states and 10463 transitions. [2022-11-03 02:50:05,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2022-11-03 02:50:05,340 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:50:05,340 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:50:05,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (51)] Forceful destruction successful, exit code 0 [2022-11-03 02:50:05,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:50:05,541 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting destroy_asyncErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:50:05,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:50:05,541 INFO L85 PathProgramCache]: Analyzing trace with hash 310156924, now seen corresponding path program 1 times [2022-11-03 02:50:05,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:50:05,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1335647941] [2022-11-03 02:50:05,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:50:05,543 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:50:05,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:50:05,544 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:50:05,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2022-11-03 02:50:07,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:50:07,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 1881 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 02:50:07,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:50:08,083 INFO L134 CoverageAnalysis]: Checked inductivity of 656 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 644 trivial. 0 not checked. [2022-11-03 02:50:08,083 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:50:08,084 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:50:08,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1335647941] [2022-11-03 02:50:08,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1335647941] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:50:08,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:50:08,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 02:50:08,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399217209] [2022-11-03 02:50:08,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:50:08,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:50:08,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:50:08,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:50:08,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:50:08,086 INFO L87 Difference]: Start difference. First operand 6882 states and 10463 transitions. Second operand has 7 states, 6 states have (on average 25.0) internal successors, (150), 5 states have internal predecessors, (150), 4 states have call successors, (49), 5 states have call predecessors, (49), 2 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2022-11-03 02:50:12,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:50:12,624 INFO L93 Difference]: Finished difference Result 13887 states and 22992 transitions. [2022-11-03 02:50:12,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:50:12,625 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 25.0) internal successors, (150), 5 states have internal predecessors, (150), 4 states have call successors, (49), 5 states have call predecessors, (49), 2 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 353 [2022-11-03 02:50:12,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:50:12,663 INFO L225 Difference]: With dead ends: 13887 [2022-11-03 02:50:12,663 INFO L226 Difference]: Without dead ends: 7130 [2022-11-03 02:50:12,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 347 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:50:12,713 INFO L413 NwaCegarLoop]: 1320 mSDtfsCounter, 32 mSDsluCounter, 6564 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 7884 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:50:12,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 7884 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-03 02:50:12,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7130 states. [2022-11-03 02:50:15,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7130 to 7124. [2022-11-03 02:50:15,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7124 states, 5034 states have (on average 1.2268573698847836) internal successors, (6176), 5141 states have internal predecessors, (6176), 1581 states have call successors, (1581), 474 states have call predecessors, (1581), 501 states have return successors, (2915), 1552 states have call predecessors, (2915), 1577 states have call successors, (2915) [2022-11-03 02:50:15,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7124 states to 7124 states and 10672 transitions. [2022-11-03 02:50:15,423 INFO L78 Accepts]: Start accepts. Automaton has 7124 states and 10672 transitions. Word has length 353 [2022-11-03 02:50:15,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:50:15,423 INFO L495 AbstractCegarLoop]: Abstraction has 7124 states and 10672 transitions. [2022-11-03 02:50:15,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 25.0) internal successors, (150), 5 states have internal predecessors, (150), 4 states have call successors, (49), 5 states have call predecessors, (49), 2 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2022-11-03 02:50:15,423 INFO L276 IsEmpty]: Start isEmpty. Operand 7124 states and 10672 transitions. [2022-11-03 02:50:15,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2022-11-03 02:50:15,427 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:50:15,428 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:50:15,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (52)] Forceful destruction successful, exit code 0 [2022-11-03 02:50:15,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:50:15,629 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ldv_linux_usb_dev_usb_put_devErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:50:15,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:50:15,629 INFO L85 PathProgramCache]: Analyzing trace with hash -22744268, now seen corresponding path program 1 times [2022-11-03 02:50:15,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:50:15,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2026021166] [2022-11-03 02:50:15,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:50:15,631 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:50:15,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:50:15,632 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:50:15,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (53)] Waiting until timeout for monitored process [2022-11-03 02:50:17,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:50:18,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 1912 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 02:50:18,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:50:18,134 INFO L134 CoverageAnalysis]: Checked inductivity of 656 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2022-11-03 02:50:18,134 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:50:18,134 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:50:18,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2026021166] [2022-11-03 02:50:18,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2026021166] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:50:18,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:50:18,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:50:18,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816228667] [2022-11-03 02:50:18,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:50:18,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:50:18,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:50:18,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:50:18,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:50:18,137 INFO L87 Difference]: Start difference. First operand 7124 states and 10672 transitions. Second operand has 6 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 3 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2022-11-03 02:50:21,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:50:21,845 INFO L93 Difference]: Finished difference Result 14139 states and 23057 transitions. [2022-11-03 02:50:21,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:50:21,846 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 3 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) Word has length 354 [2022-11-03 02:50:21,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:50:21,886 INFO L225 Difference]: With dead ends: 14139 [2022-11-03 02:50:21,886 INFO L226 Difference]: Without dead ends: 7140 [2022-11-03 02:50:21,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 349 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:50:21,926 INFO L413 NwaCegarLoop]: 1308 mSDtfsCounter, 6 mSDsluCounter, 5202 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 6510 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:50:21,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 6510 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-03 02:50:21,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7140 states. [2022-11-03 02:50:24,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7140 to 7136. [2022-11-03 02:50:24,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7136 states, 5040 states have (on average 1.2234126984126985) internal successors, (6166), 5147 states have internal predecessors, (6166), 1581 states have call successors, (1581), 474 states have call predecessors, (1581), 507 states have return successors, (2930), 1552 states have call predecessors, (2930), 1577 states have call successors, (2930) [2022-11-03 02:50:24,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7136 states to 7136 states and 10677 transitions. [2022-11-03 02:50:24,614 INFO L78 Accepts]: Start accepts. Automaton has 7136 states and 10677 transitions. Word has length 354 [2022-11-03 02:50:24,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:50:24,614 INFO L495 AbstractCegarLoop]: Abstraction has 7136 states and 10677 transitions. [2022-11-03 02:50:24,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 3 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2022-11-03 02:50:24,615 INFO L276 IsEmpty]: Start isEmpty. Operand 7136 states and 10677 transitions. [2022-11-03 02:50:24,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2022-11-03 02:50:24,619 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:50:24,620 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:50:24,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (53)] Forceful destruction successful, exit code 0 [2022-11-03 02:50:24,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:50:24,820 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ldv_linux_usb_dev_usb_put_devErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:50:24,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:50:24,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1361319833, now seen corresponding path program 1 times [2022-11-03 02:50:24,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:50:24,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [752012222] [2022-11-03 02:50:24,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:50:24,822 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:50:24,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:50:24,823 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:50:24,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (54)] Waiting until timeout for monitored process [2022-11-03 02:50:26,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:50:27,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 2091 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 02:50:27,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:50:27,535 INFO L134 CoverageAnalysis]: Checked inductivity of 700 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 505 trivial. 0 not checked. [2022-11-03 02:50:27,535 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:50:27,536 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:50:27,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [752012222] [2022-11-03 02:50:27,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [752012222] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:50:27,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:50:27,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 02:50:27,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69189973] [2022-11-03 02:50:27,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:50:27,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-03 02:50:27,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:50:27,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-03 02:50:27,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2022-11-03 02:50:27,538 INFO L87 Difference]: Start difference. First operand 7136 states and 10677 transitions. Second operand has 14 states, 13 states have (on average 13.461538461538462) internal successors, (175), 13 states have internal predecessors, (175), 6 states have call successors, (54), 2 states have call predecessors, (54), 4 states have return successors, (49), 6 states have call predecessors, (49), 6 states have call successors, (49) [2022-11-03 02:50:33,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:50:33,657 INFO L93 Difference]: Finished difference Result 15180 states and 23413 transitions. [2022-11-03 02:50:33,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-03 02:50:33,657 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 13.461538461538462) internal successors, (175), 13 states have internal predecessors, (175), 6 states have call successors, (54), 2 states have call predecessors, (54), 4 states have return successors, (49), 6 states have call predecessors, (49), 6 states have call successors, (49) Word has length 389 [2022-11-03 02:50:33,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:50:33,694 INFO L225 Difference]: With dead ends: 15180 [2022-11-03 02:50:33,694 INFO L226 Difference]: Without dead ends: 9002 [2022-11-03 02:50:33,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 376 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=88, Invalid=374, Unknown=0, NotChecked=0, Total=462 [2022-11-03 02:50:33,716 INFO L413 NwaCegarLoop]: 1719 mSDtfsCounter, 1817 mSDsluCounter, 18191 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 561 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1817 SdHoareTripleChecker+Valid, 19910 SdHoareTripleChecker+Invalid, 1029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 561 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:50:33,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1817 Valid, 19910 Invalid, 1029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [561 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-03 02:50:33,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9002 states. [2022-11-03 02:50:36,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9002 to 7136. [2022-11-03 02:50:36,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7136 states, 5040 states have (on average 1.2234126984126985) internal successors, (6166), 5147 states have internal predecessors, (6166), 1581 states have call successors, (1581), 474 states have call predecessors, (1581), 507 states have return successors, (2930), 1552 states have call predecessors, (2930), 1577 states have call successors, (2930) [2022-11-03 02:50:36,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7136 states to 7136 states and 10677 transitions. [2022-11-03 02:50:36,806 INFO L78 Accepts]: Start accepts. Automaton has 7136 states and 10677 transitions. Word has length 389 [2022-11-03 02:50:36,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:50:36,807 INFO L495 AbstractCegarLoop]: Abstraction has 7136 states and 10677 transitions. [2022-11-03 02:50:36,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 13.461538461538462) internal successors, (175), 13 states have internal predecessors, (175), 6 states have call successors, (54), 2 states have call predecessors, (54), 4 states have return successors, (49), 6 states have call predecessors, (49), 6 states have call successors, (49) [2022-11-03 02:50:36,807 INFO L276 IsEmpty]: Start isEmpty. Operand 7136 states and 10677 transitions. [2022-11-03 02:50:36,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2022-11-03 02:50:36,811 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:50:36,811 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:50:36,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (54)] Forceful destruction successful, exit code 0 [2022-11-03 02:50:37,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:50:37,012 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ldv_linux_usb_dev_usb_put_devErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:50:37,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:50:37,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1752263094, now seen corresponding path program 1 times [2022-11-03 02:50:37,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:50:37,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [66745663] [2022-11-03 02:50:37,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:50:37,014 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:50:37,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:50:37,015 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:50:37,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (55)] Waiting until timeout for monitored process [2022-11-03 02:50:55,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:50:55,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 1912 conjuncts, 55 conjunts are in the unsatisfiable core [2022-11-03 02:50:55,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:50:57,277 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2022-11-03 02:50:57,292 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2022-11-03 02:51:18,923 INFO L134 CoverageAnalysis]: Checked inductivity of 656 backedges. 186 proven. 6 refuted. 0 times theorem prover too weak. 464 trivial. 0 not checked. [2022-11-03 02:51:18,924 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:51:31,582 INFO L134 CoverageAnalysis]: Checked inductivity of 656 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 656 trivial. 0 not checked. [2022-11-03 02:51:31,582 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:51:31,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [66745663] [2022-11-03 02:51:31,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [66745663] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-03 02:51:31,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:51:31,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [26] total 31 [2022-11-03 02:51:31,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433452824] [2022-11-03 02:51:31,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:51:31,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:51:31,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:51:31,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:51:31,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=839, Unknown=9, NotChecked=0, Total=930 [2022-11-03 02:51:31,584 INFO L87 Difference]: Start difference. First operand 7136 states and 10677 transitions. Second operand has 7 states, 7 states have (on average 21.285714285714285) internal successors, (149), 7 states have internal predecessors, (149), 5 states have call successors, (49), 2 states have call predecessors, (49), 3 states have return successors, (45), 5 states have call predecessors, (45), 5 states have call successors, (45) [2022-11-03 02:51:38,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:51:43,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:51:45,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:51:47,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:52:00,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:52:02,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:52:04,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:52:06,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:52:08,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:52:09,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:52:11,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:52:18,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:52:20,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:52:23,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:52:24,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:52:24,791 INFO L93 Difference]: Finished difference Result 13354 states and 20041 transitions. [2022-11-03 02:52:24,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 02:52:24,793 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.285714285714285) internal successors, (149), 7 states have internal predecessors, (149), 5 states have call successors, (49), 2 states have call predecessors, (49), 3 states have return successors, (45), 5 states have call predecessors, (45), 5 states have call successors, (45) Word has length 354 [2022-11-03 02:52:24,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:52:24,823 INFO L225 Difference]: With dead ends: 13354 [2022-11-03 02:52:24,823 INFO L226 Difference]: Without dead ends: 7192 [2022-11-03 02:52:24,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 707 GetRequests, 675 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 30.7s TimeCoverageRelationStatistics Valid=89, Invalid=894, Unknown=9, NotChecked=0, Total=992 [2022-11-03 02:52:24,843 INFO L413 NwaCegarLoop]: 1315 mSDtfsCounter, 13 mSDsluCounter, 4854 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 3 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 6169 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:52:24,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 6169 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 433 Invalid, 10 Unknown, 0 Unchecked, 49.5s Time] [2022-11-03 02:52:24,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7192 states. [2022-11-03 02:52:27,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7192 to 7146. [2022-11-03 02:52:27,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7146 states, 5046 states have (on average 1.2235434007134365) internal successors, (6174), 5155 states have internal predecessors, (6174), 1583 states have call successors, (1583), 474 states have call predecessors, (1583), 509 states have return successors, (2936), 1554 states have call predecessors, (2936), 1579 states have call successors, (2936) [2022-11-03 02:52:27,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7146 states to 7146 states and 10693 transitions. [2022-11-03 02:52:27,831 INFO L78 Accepts]: Start accepts. Automaton has 7146 states and 10693 transitions. Word has length 354 [2022-11-03 02:52:27,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:52:27,831 INFO L495 AbstractCegarLoop]: Abstraction has 7146 states and 10693 transitions. [2022-11-03 02:52:27,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.285714285714285) internal successors, (149), 7 states have internal predecessors, (149), 5 states have call successors, (49), 2 states have call predecessors, (49), 3 states have return successors, (45), 5 states have call predecessors, (45), 5 states have call successors, (45) [2022-11-03 02:52:27,832 INFO L276 IsEmpty]: Start isEmpty. Operand 7146 states and 10693 transitions. [2022-11-03 02:52:27,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2022-11-03 02:52:27,836 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:52:27,836 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:52:27,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (55)] Forceful destruction successful, exit code 0 [2022-11-03 02:52:28,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:52:28,037 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ldv_linux_usb_dev_usb_put_devErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:52:28,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:52:28,038 INFO L85 PathProgramCache]: Analyzing trace with hash -929173477, now seen corresponding path program 1 times [2022-11-03 02:52:28,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:52:28,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [728094823] [2022-11-03 02:52:28,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:52:28,039 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:52:28,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:52:28,040 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:52:28,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e86281e-c4bd-42a0-b068-cdf664b8fa34/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (56)] Waiting until timeout for monitored process [2022-11-03 02:53:21,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 02:53:21,792 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.