./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--hid--usbhid--usbhid.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 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_d93dc9ed-1564-4524-ba23-53244dc563c2/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/bin/utaipan-g80aRyZoba --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 7c12097eac5f261adffff229683e356131e183db7c13bb0d667f223c1dbcfa9a --- 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-b5237d8 [2022-11-22 01:45:28,970 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:45:28,972 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:45:29,010 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:45:29,011 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:45:29,012 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:45:29,013 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:45:29,015 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:45:29,017 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:45:29,018 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:45:29,019 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:45:29,021 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:45:29,021 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:45:29,022 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:45:29,024 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:45:29,025 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:45:29,026 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:45:29,027 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:45:29,029 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:45:29,031 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:45:29,033 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:45:29,043 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:45:29,045 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:45:29,046 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:45:29,049 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:45:29,050 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:45:29,050 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:45:29,051 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:45:29,052 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:45:29,053 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:45:29,053 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:45:29,054 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:45:29,055 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:45:29,056 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:45:29,057 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:45:29,057 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:45:29,058 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:45:29,068 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:45:29,068 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:45:29,072 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:45:29,073 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:45:29,074 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 01:45:29,116 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:45:29,116 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:45:29,117 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:45:29,117 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:45:29,118 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:45:29,118 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:45:29,118 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:45:29,119 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:45:29,119 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:45:29,119 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:45:29,120 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:45:29,120 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:45:29,121 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:45:29,121 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:45:29,121 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:45:29,121 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:45:29,122 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:45:29,122 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:45:29,123 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:45:29,123 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:45:29,123 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:45:29,123 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:45:29,124 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:45:29,124 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:45:29,124 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:45:29,124 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:45:29,125 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:45:29,125 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:45:29,125 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:45:29,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:45:29,126 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:45:29,126 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:45:29,127 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:45:29,127 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:45:29,127 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:45:29,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:45:29,127 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:45:29,128 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:45:29,128 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_d93dc9ed-1564-4524-ba23-53244dc563c2/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c12097eac5f261adffff229683e356131e183db7c13bb0d667f223c1dbcfa9a [2022-11-22 01:45:29,371 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:45:29,412 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:45:29,415 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:45:29,416 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:45:29,417 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:45:29,418 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i [2022-11-22 01:45:32,492 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:45:33,240 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:45:33,241 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i [2022-11-22 01:45:33,307 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/bin/utaipan-g80aRyZoba/data/02dee784b/15121cb909f64c208441d0699dc3c6c3/FLAG0d7de5ccc [2022-11-22 01:45:33,328 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/bin/utaipan-g80aRyZoba/data/02dee784b/15121cb909f64c208441d0699dc3c6c3 [2022-11-22 01:45:33,332 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:45:33,335 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:45:33,337 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:45:33,338 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:45:33,341 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:45:33,343 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:45:33" (1/1) ... [2022-11-22 01:45:33,344 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@669b92e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:33, skipping insertion in model container [2022-11-22 01:45:33,345 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:45:33" (1/1) ... [2022-11-22 01:45:33,352 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:45:33,612 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:45:39,118 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[497733,497746] [2022-11-22 01:45:39,123 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[497878,497891] [2022-11-22 01:45:39,124 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498024,498037] [2022-11-22 01:45:39,124 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498189,498202] [2022-11-22 01:45:39,125 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498347,498360] [2022-11-22 01:45:39,125 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498505,498518] [2022-11-22 01:45:39,125 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498663,498676] [2022-11-22 01:45:39,126 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498823,498836] [2022-11-22 01:45:39,127 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498982,498995] [2022-11-22 01:45:39,127 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[499121,499134] [2022-11-22 01:45:39,128 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[499263,499276] [2022-11-22 01:45:39,129 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[499412,499425] [2022-11-22 01:45:39,130 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[499551,499564] [2022-11-22 01:45:39,130 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[499706,499719] [2022-11-22 01:45:39,131 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[499866,499879] [2022-11-22 01:45:39,131 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500017,500030] [2022-11-22 01:45:39,132 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500168,500181] [2022-11-22 01:45:39,132 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500320,500333] [2022-11-22 01:45:39,133 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500469,500482] [2022-11-22 01:45:39,136 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500617,500630] [2022-11-22 01:45:39,136 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500774,500787] [2022-11-22 01:45:39,137 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500923,500936] [2022-11-22 01:45:39,137 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501079,501092] [2022-11-22 01:45:39,139 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501232,501245] [2022-11-22 01:45:39,140 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501378,501391] [2022-11-22 01:45:39,140 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501521,501534] [2022-11-22 01:45:39,141 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501673,501686] [2022-11-22 01:45:39,142 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501819,501832] [2022-11-22 01:45:39,143 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501964,501977] [2022-11-22 01:45:39,143 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[502118,502131] [2022-11-22 01:45:39,144 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[502269,502282] [2022-11-22 01:45:39,145 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[502424,502437] [2022-11-22 01:45:39,145 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[502576,502589] [2022-11-22 01:45:39,147 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[502731,502744] [2022-11-22 01:45:39,148 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[502895,502908] [2022-11-22 01:45:39,148 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[503051,503064] [2022-11-22 01:45:39,148 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[503215,503228] [2022-11-22 01:45:39,149 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[503357,503370] [2022-11-22 01:45:39,150 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[503515,503528] [2022-11-22 01:45:39,150 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[503682,503695] [2022-11-22 01:45:39,151 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[503841,503854] [2022-11-22 01:45:39,152 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504000,504013] [2022-11-22 01:45:39,152 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504149,504162] [2022-11-22 01:45:39,153 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504296,504309] [2022-11-22 01:45:39,153 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504435,504448] [2022-11-22 01:45:39,153 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504598,504611] [2022-11-22 01:45:39,154 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504764,504777] [2022-11-22 01:45:39,155 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504928,504941] [2022-11-22 01:45:39,156 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[505093,505106] [2022-11-22 01:45:39,157 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[505258,505271] [2022-11-22 01:45:39,157 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[505424,505437] [2022-11-22 01:45:39,158 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[505589,505602] [2022-11-22 01:45:39,158 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[505756,505769] [2022-11-22 01:45:39,159 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[505916,505929] [2022-11-22 01:45:39,159 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506078,506091] [2022-11-22 01:45:39,160 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506237,506250] [2022-11-22 01:45:39,160 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506383,506396] [2022-11-22 01:45:39,161 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506526,506539] [2022-11-22 01:45:39,161 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506670,506683] [2022-11-22 01:45:39,162 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506813,506826] [2022-11-22 01:45:39,163 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506957,506970] [2022-11-22 01:45:39,163 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[507098,507111] [2022-11-22 01:45:39,164 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[507236,507249] [2022-11-22 01:45:39,164 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[507394,507407] [2022-11-22 01:45:39,165 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[507553,507566] [2022-11-22 01:45:39,165 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[507709,507722] [2022-11-22 01:45:39,167 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[507858,507871] [2022-11-22 01:45:39,168 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508010,508023] [2022-11-22 01:45:39,168 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508161,508174] [2022-11-22 01:45:39,170 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508310,508323] [2022-11-22 01:45:39,170 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508462,508475] [2022-11-22 01:45:39,171 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508610,508623] [2022-11-22 01:45:39,172 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508763,508776] [2022-11-22 01:45:39,172 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508914,508927] [2022-11-22 01:45:39,173 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509064,509077] [2022-11-22 01:45:39,175 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509211,509224] [2022-11-22 01:45:39,176 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509362,509375] [2022-11-22 01:45:39,176 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509513,509526] [2022-11-22 01:45:39,177 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509661,509674] [2022-11-22 01:45:39,177 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509827,509840] [2022-11-22 01:45:39,177 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509996,510009] [2022-11-22 01:45:39,178 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[510163,510176] [2022-11-22 01:45:39,178 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[510331,510344] [2022-11-22 01:45:39,179 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[510481,510494] [2022-11-22 01:45:39,180 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[510628,510641] [2022-11-22 01:45:39,180 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[510789,510802] [2022-11-22 01:45:39,181 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[510959,510972] [2022-11-22 01:45:39,181 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[511121,511134] [2022-11-22 01:45:39,212 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:45:39,299 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:45:39,905 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[497733,497746] [2022-11-22 01:45:39,905 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[497878,497891] [2022-11-22 01:45:39,906 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498024,498037] [2022-11-22 01:45:39,906 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498189,498202] [2022-11-22 01:45:39,906 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498347,498360] [2022-11-22 01:45:39,907 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498505,498518] [2022-11-22 01:45:39,907 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498663,498676] [2022-11-22 01:45:39,908 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498823,498836] [2022-11-22 01:45:39,908 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498982,498995] [2022-11-22 01:45:39,908 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[499121,499134] [2022-11-22 01:45:39,909 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[499263,499276] [2022-11-22 01:45:39,909 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[499412,499425] [2022-11-22 01:45:39,910 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[499551,499564] [2022-11-22 01:45:39,910 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[499706,499719] [2022-11-22 01:45:39,911 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[499866,499879] [2022-11-22 01:45:39,911 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500017,500030] [2022-11-22 01:45:39,911 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500168,500181] [2022-11-22 01:45:39,912 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500320,500333] [2022-11-22 01:45:39,913 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500469,500482] [2022-11-22 01:45:39,913 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500617,500630] [2022-11-22 01:45:39,914 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500774,500787] [2022-11-22 01:45:39,914 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500923,500936] [2022-11-22 01:45:39,914 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501079,501092] [2022-11-22 01:45:39,919 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501232,501245] [2022-11-22 01:45:39,921 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501378,501391] [2022-11-22 01:45:39,921 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501521,501534] [2022-11-22 01:45:39,922 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501673,501686] [2022-11-22 01:45:39,922 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501819,501832] [2022-11-22 01:45:39,923 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501964,501977] [2022-11-22 01:45:39,923 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[502118,502131] [2022-11-22 01:45:39,923 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[502269,502282] [2022-11-22 01:45:39,924 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[502424,502437] [2022-11-22 01:45:39,924 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[502576,502589] [2022-11-22 01:45:39,924 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[502731,502744] [2022-11-22 01:45:39,925 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[502895,502908] [2022-11-22 01:45:39,926 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[503051,503064] [2022-11-22 01:45:39,927 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[503215,503228] [2022-11-22 01:45:39,928 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[503357,503370] [2022-11-22 01:45:39,928 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[503515,503528] [2022-11-22 01:45:39,928 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[503682,503695] [2022-11-22 01:45:39,930 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[503841,503854] [2022-11-22 01:45:39,931 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504000,504013] [2022-11-22 01:45:39,931 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504149,504162] [2022-11-22 01:45:39,933 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504296,504309] [2022-11-22 01:45:39,934 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504435,504448] [2022-11-22 01:45:39,934 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504598,504611] [2022-11-22 01:45:39,934 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504764,504777] [2022-11-22 01:45:39,935 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504928,504941] [2022-11-22 01:45:39,936 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[505093,505106] [2022-11-22 01:45:39,936 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[505258,505271] [2022-11-22 01:45:39,937 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[505424,505437] [2022-11-22 01:45:39,938 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[505589,505602] [2022-11-22 01:45:39,938 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[505756,505769] [2022-11-22 01:45:39,938 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[505916,505929] [2022-11-22 01:45:39,940 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506078,506091] [2022-11-22 01:45:39,973 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506237,506250] [2022-11-22 01:45:39,974 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506383,506396] [2022-11-22 01:45:39,974 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506526,506539] [2022-11-22 01:45:39,974 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506670,506683] [2022-11-22 01:45:39,975 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506813,506826] [2022-11-22 01:45:39,975 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506957,506970] [2022-11-22 01:45:39,975 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[507098,507111] [2022-11-22 01:45:39,976 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[507236,507249] [2022-11-22 01:45:39,976 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[507394,507407] [2022-11-22 01:45:39,976 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[507553,507566] [2022-11-22 01:45:39,976 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[507709,507722] [2022-11-22 01:45:39,977 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[507858,507871] [2022-11-22 01:45:39,977 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508010,508023] [2022-11-22 01:45:39,977 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508161,508174] [2022-11-22 01:45:39,978 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508310,508323] [2022-11-22 01:45:39,978 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508462,508475] [2022-11-22 01:45:39,978 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508610,508623] [2022-11-22 01:45:39,979 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508763,508776] [2022-11-22 01:45:39,979 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508914,508927] [2022-11-22 01:45:39,979 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509064,509077] [2022-11-22 01:45:39,979 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509211,509224] [2022-11-22 01:45:39,980 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509362,509375] [2022-11-22 01:45:39,980 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509513,509526] [2022-11-22 01:45:39,980 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509661,509674] [2022-11-22 01:45:39,981 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509827,509840] [2022-11-22 01:45:39,981 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509996,510009] [2022-11-22 01:45:39,981 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[510163,510176] [2022-11-22 01:45:39,982 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[510331,510344] [2022-11-22 01:45:39,982 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[510481,510494] [2022-11-22 01:45:39,985 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[510628,510641] [2022-11-22 01:45:39,986 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[510789,510802] [2022-11-22 01:45:39,986 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[510959,510972] [2022-11-22 01:45:39,987 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[511121,511134] [2022-11-22 01:45:39,992 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:45:40,342 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:45:40,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:40 WrapperNode [2022-11-22 01:45:40,343 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:45:40,344 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:45:40,345 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:45:40,345 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:45:40,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:40" (1/1) ... [2022-11-22 01:45:40,490 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:40" (1/1) ... [2022-11-22 01:45:40,801 INFO L138 Inliner]: procedures = 791, calls = 4667, calls flagged for inlining = 346, calls inlined = 247, statements flattened = 8121 [2022-11-22 01:45:40,802 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:45:40,802 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:45:40,803 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:45:40,803 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:45:40,814 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:40" (1/1) ... [2022-11-22 01:45:40,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:40" (1/1) ... [2022-11-22 01:45:40,862 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:40" (1/1) ... [2022-11-22 01:45:40,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:40" (1/1) ... [2022-11-22 01:45:41,057 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:40" (1/1) ... [2022-11-22 01:45:41,099 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:40" (1/1) ... [2022-11-22 01:45:41,162 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:40" (1/1) ... [2022-11-22 01:45:41,199 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:40" (1/1) ... [2022-11-22 01:45:41,265 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:45:41,266 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:45:41,266 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:45:41,267 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:45:41,268 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:40" (1/1) ... [2022-11-22 01:45:41,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:45:41,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:45:41,307 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:45:41,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:45:41,367 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-22 01:45:41,367 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_request_effect_upload [2022-11-22 01:45:41,367 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_request_effect_upload [2022-11-22 01:45:41,367 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2022-11-22 01:45:41,368 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2022-11-22 01:45:41,368 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_find_special_field [2022-11-22 01:45:41,368 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_find_special_field [2022-11-22 01:45:41,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_usbhid_device [2022-11-22 01:45:41,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_usbhid_device [2022-11-22 01:45:41,369 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_check_usage [2022-11-22 01:45:41,369 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_check_usage [2022-11-22 01:45:41,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-22 01:45:41,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-22 01:45:41,369 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2022-11-22 01:45:41,369 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2022-11-22 01:45:41,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-22 01:45:41,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-22 01:45:41,370 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2022-11-22 01:45:41,370 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2022-11-22 01:45:41,370 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-22 01:45:41,370 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-22 01:45:41,370 INFO L130 BoogieDeclarations]: Found specification of procedure hid_suspend [2022-11-22 01:45:41,370 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_suspend [2022-11-22 01:45:41,371 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_erase_pid [2022-11-22 01:45:41,371 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_erase_pid [2022-11-22 01:45:41,371 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-22 01:45:41,371 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-22 01:45:41,371 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-22 01:45:41,371 INFO L130 BoogieDeclarations]: Found specification of procedure hid_submit_out [2022-11-22 01:45:41,371 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_submit_out [2022-11-22 01:45:41,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_108 [2022-11-22 01:45:41,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_108 [2022-11-22 01:45:41,372 INFO L130 BoogieDeclarations]: Found specification of procedure hid_output_report [2022-11-22 01:45:41,372 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_output_report [2022-11-22 01:45:41,372 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-22 01:45:41,372 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-22 01:45:41,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-11-22 01:45:41,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-11-22 01:45:41,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_existancelock_of_hiddev [2022-11-22 01:45:41,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_existancelock_of_hiddev [2022-11-22 01:45:41,373 INFO L130 BoogieDeclarations]: Found specification of procedure hid_find_max_report [2022-11-22 01:45:41,373 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_find_max_report [2022-11-22 01:45:41,373 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_autocenter [2022-11-22 01:45:41,374 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_autocenter [2022-11-22 01:45:41,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-22 01:45:41,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-22 01:45:41,374 INFO L130 BoogieDeclarations]: Found specification of procedure hiddev_ioctl [2022-11-22 01:45:41,374 INFO L138 BoogieDeclarations]: Found implementation of procedure hiddev_ioctl [2022-11-22 01:45:41,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-22 01:45:41,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-22 01:45:41,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:45:41,375 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-11-22 01:45:41,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-11-22 01:45:41,375 INFO L130 BoogieDeclarations]: Found specification of procedure hid_submit_ctrl [2022-11-22 01:45:41,375 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_submit_ctrl [2022-11-22 01:45:41,375 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_120 [2022-11-22 01:45:41,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_120 [2022-11-22 01:45:41,376 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-22 01:45:41,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-22 01:45:41,376 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2022-11-22 01:45:41,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2022-11-22 01:45:41,376 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_restart_out_queue [2022-11-22 01:45:41,376 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_restart_out_queue [2022-11-22 01:45:41,376 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-22 01:45:41,376 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-22 01:45:41,379 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-22 01:45:41,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-22 01:45:41,380 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_stop [2022-11-22 01:45:41,380 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_stop [2022-11-22 01:45:41,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:45:41,381 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-22 01:45:41,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-22 01:45:41,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:45:41,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-22 01:45:41,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-22 01:45:41,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:45:41,389 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-22 01:45:41,389 INFO L130 BoogieDeclarations]: Found specification of procedure hid_cease_io [2022-11-22 01:45:41,389 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_cease_io [2022-11-22 01:45:41,389 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-22 01:45:41,389 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-22 01:45:41,389 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-22 01:45:41,389 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-22 01:45:41,389 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-11-22 01:45:41,390 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-11-22 01:45:41,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_irq_check_alloc_flags [2022-11-22 01:45:41,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_irq_check_alloc_flags [2022-11-22 01:45:41,390 INFO L130 BoogieDeclarations]: Found specification of procedure hid_hw_wait [2022-11-22 01:45:41,390 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_hw_wait [2022-11-22 01:45:41,390 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-22 01:45:41,390 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-22 01:45:41,390 INFO L130 BoogieDeclarations]: Found specification of procedure hid_start_in [2022-11-22 01:45:41,391 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_start_in [2022-11-22 01:45:41,392 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2022-11-22 01:45:41,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2022-11-22 01:45:41,392 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-22 01:45:41,392 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-22 01:45:41,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_hid_open_mut [2022-11-22 01:45:41,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_hid_open_mut [2022-11-22 01:45:41,392 INFO L130 BoogieDeclarations]: Found specification of procedure hid_io_error [2022-11-22 01:45:41,392 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_io_error [2022-11-22 01:45:41,392 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-22 01:45:41,393 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-22 01:45:41,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:45:41,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:45:41,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 01:45:41,393 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-22 01:45:41,394 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-22 01:45:41,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-22 01:45:41,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-22 01:45:41,394 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2022-11-22 01:45:41,394 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2022-11-22 01:45:41,395 INFO L130 BoogieDeclarations]: Found specification of procedure hid_cancel_delayed_stuff [2022-11-22 01:45:41,395 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_cancel_delayed_stuff [2022-11-22 01:45:41,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 01:45:41,395 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 01:45:41,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_lock_of_usbhid_device [2022-11-22 01:45:41,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_lock_of_usbhid_device [2022-11-22 01:45:41,395 INFO L130 BoogieDeclarations]: Found specification of procedure hiddev_lookup_report [2022-11-22 01:45:41,395 INFO L138 BoogieDeclarations]: Found implementation of procedure hiddev_lookup_report [2022-11-22 01:45:41,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-11-22 01:45:41,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-11-22 01:45:41,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_free_urb [2022-11-22 01:45:41,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_free_urb [2022-11-22 01:45:41,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-11-22 01:45:41,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-11-22 01:45:41,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:45:41,396 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-22 01:45:41,396 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-22 01:45:41,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-22 01:45:41,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-22 01:45:41,396 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_submit_report [2022-11-22 01:45:41,396 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_submit_report [2022-11-22 01:45:41,396 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_mark_busy [2022-11-22 01:45:41,397 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_mark_busy [2022-11-22 01:45:41,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:45:41,397 INFO L130 BoogieDeclarations]: Found specification of procedure hid_set_idle [2022-11-22 01:45:41,397 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_set_idle [2022-11-22 01:45:41,397 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_set [2022-11-22 01:45:41,397 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_set [2022-11-22 01:45:41,397 INFO L130 BoogieDeclarations]: Found specification of procedure hid_reset_resume [2022-11-22 01:45:41,397 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_reset_resume [2022-11-22 01:45:41,397 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-22 01:45:41,397 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-22 01:45:41,397 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-22 01:45:41,397 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-22 01:45:41,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-22 01:45:41,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-22 01:45:41,398 INFO L130 BoogieDeclarations]: Found specification of procedure hid_alloc_report_buf [2022-11-22 01:45:41,398 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_alloc_report_buf [2022-11-22 01:45:41,398 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_find_reports [2022-11-22 01:45:41,398 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_find_reports [2022-11-22 01:45:41,398 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-22 01:45:41,398 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-22 01:45:41,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_alloc_urb [2022-11-22 01:45:41,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_alloc_urb [2022-11-22 01:45:41,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-22 01:45:41,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-22 01:45:41,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-11-22 01:45:41,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-11-22 01:45:41,399 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-22 01:45:41,399 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-22 01:45:41,399 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-22 01:45:41,399 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-22 01:45:41,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-22 01:45:41,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-22 01:45:41,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:45:41,399 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-22 01:45:41,399 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-22 01:45:41,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 01:45:41,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 01:45:41,399 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_restart_ctrl_queue [2022-11-22 01:45:41,399 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_restart_ctrl_queue [2022-11-22 01:45:41,399 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_reset [2022-11-22 01:45:41,400 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_reset [2022-11-22 01:45:41,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_interruptible_or_killable_thread_lock_of_hiddev_list [2022-11-22 01:45:41,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_interruptible_or_killable_thread_lock_of_hiddev_list [2022-11-22 01:45:41,400 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-22 01:45:41,400 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-22 01:45:41,400 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_lookup_quirk [2022-11-22 01:45:41,400 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_lookup_quirk [2022-11-22 01:45:41,400 INFO L130 BoogieDeclarations]: Found specification of procedure usb_string [2022-11-22 01:45:41,400 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_string [2022-11-22 01:45:41,400 INFO L130 BoogieDeclarations]: Found specification of procedure hid_resume [2022-11-22 01:45:41,400 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_resume [2022-11-22 01:45:41,400 INFO L130 BoogieDeclarations]: Found specification of procedure hid_get_class_descriptor [2022-11-22 01:45:41,400 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_get_class_descriptor [2022-11-22 01:45:41,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_107 [2022-11-22 01:45:41,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_107 [2022-11-22 01:45:41,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_96 [2022-11-22 01:45:41,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_96 [2022-11-22 01:45:41,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_97 [2022-11-22 01:45:41,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_97 [2022-11-22 01:45:41,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-11-22 01:45:41,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-11-22 01:45:41,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_thread_lock_of_hiddev_list [2022-11-22 01:45:41,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_thread_lock_of_hiddev_list [2022-11-22 01:45:41,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-22 01:45:41,401 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-22 01:45:41,402 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_playback_pid [2022-11-22 01:45:41,402 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_playback_pid [2022-11-22 01:45:41,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 01:45:41,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 01:45:41,402 INFO L130 BoogieDeclarations]: Found specification of procedure usb_block_urb [2022-11-22 01:45:41,402 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_block_urb [2022-11-22 01:45:41,402 INFO L130 BoogieDeclarations]: Found specification of procedure hid_retry_timeout [2022-11-22 01:45:41,402 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_retry_timeout [2022-11-22 01:45:41,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_3 [2022-11-22 01:45:41,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_3 [2022-11-22 01:45:41,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_usb_alloc_coherent [2022-11-22 01:45:41,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_usb_alloc_coherent [2022-11-22 01:45:41,403 INFO L130 BoogieDeclarations]: Found specification of procedure __usb_get_extra_descriptor [2022-11-22 01:45:41,403 INFO L138 BoogieDeclarations]: Found implementation of procedure __usb_get_extra_descriptor [2022-11-22 01:45:41,403 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_init_reports [2022-11-22 01:45:41,403 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_init_reports [2022-11-22 01:45:41,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_hid_open_mut [2022-11-22 01:45:41,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_hid_open_mut [2022-11-22 01:45:41,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-11-22 01:45:41,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-11-22 01:45:41,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-11-22 01:45:41,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-11-22 01:45:41,403 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-22 01:45:41,403 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-22 01:45:41,403 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unpoison_urb [2022-11-22 01:45:41,404 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unpoison_urb [2022-11-22 01:45:41,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-22 01:45:41,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-22 01:45:41,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-22 01:45:41,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-22 01:45:41,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-11-22 01:45:41,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-11-22 01:45:41,404 INFO L130 BoogieDeclarations]: Found specification of procedure hid_resume_common [2022-11-22 01:45:41,404 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_resume_common [2022-11-22 01:45:41,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:45:41,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2022-11-22 01:45:41,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2022-11-22 01:45:41,405 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-22 01:45:41,405 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-22 01:45:41,405 INFO L130 BoogieDeclarations]: Found specification of procedure hid_free_buffers [2022-11-22 01:45:41,405 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_free_buffers [2022-11-22 01:45:41,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 01:45:41,405 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-22 01:45:41,405 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-22 01:45:41,405 INFO L130 BoogieDeclarations]: Found specification of procedure hid_pidff_init [2022-11-22 01:45:41,405 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_pidff_init [2022-11-22 01:45:41,405 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-22 01:45:41,405 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-22 01:45:41,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 01:45:41,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-11-22 01:45:41,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-11-22 01:45:41,406 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2022-11-22 01:45:41,406 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2022-11-22 01:45:41,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-22 01:45:41,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-22 01:45:41,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_existancelock_of_hiddev [2022-11-22 01:45:41,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_existancelock_of_hiddev [2022-11-22 01:45:41,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 01:45:41,406 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 01:45:41,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-11-22 01:45:41,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-11-22 01:45:41,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-22 01:45:41,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-22 01:45:41,407 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-22 01:45:41,407 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-22 01:45:41,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-22 01:45:41,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-22 01:45:41,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_3_2 [2022-11-22 01:45:41,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_3_2 [2022-11-22 01:45:41,407 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-22 01:45:41,407 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-22 01:45:41,407 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-22 01:45:41,407 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-22 01:45:41,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-11-22 01:45:41,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-11-22 01:45:41,408 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_parse [2022-11-22 01:45:41,408 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_parse [2022-11-22 01:45:41,408 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface_async [2022-11-22 01:45:41,408 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface_async [2022-11-22 01:45:41,408 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_wait_io [2022-11-22 01:45:41,408 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_wait_io [2022-11-22 01:45:41,408 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_put_power [2022-11-22 01:45:41,408 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_put_power [2022-11-22 01:45:41,408 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_check_autocenter [2022-11-22 01:45:41,408 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_check_autocenter [2022-11-22 01:45:41,409 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-22 01:45:41,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-22 01:45:41,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_99 [2022-11-22 01:45:41,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_99 [2022-11-22 01:45:41,409 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_find_special_keys [2022-11-22 01:45:41,409 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_find_special_keys [2022-11-22 01:45:41,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-11-22 01:45:41,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-11-22 01:45:41,409 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2022-11-22 01:45:41,409 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2022-11-22 01:45:41,409 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-22 01:45:41,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-22 01:45:41,409 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-11-22 01:45:41,409 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-11-22 01:45:41,410 INFO L130 BoogieDeclarations]: Found specification of procedure hid_hw_request [2022-11-22 01:45:41,410 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_hw_request [2022-11-22 01:45:41,461 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-11-22 01:45:41,461 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-11-22 01:45:41,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 01:45:41,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 01:45:41,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 01:45:41,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-22 01:45:41,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-22 01:45:41,462 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface_no_suspend [2022-11-22 01:45:41,462 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface_no_suspend [2022-11-22 01:45:41,462 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface_no_resume [2022-11-22 01:45:41,462 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface_no_resume [2022-11-22 01:45:41,462 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_disconnect [2022-11-22 01:45:41,462 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_disconnect [2022-11-22 01:45:41,462 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2022-11-22 01:45:41,462 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2022-11-22 01:45:41,463 INFO L130 BoogieDeclarations]: Found specification of procedure hid_destroy_device [2022-11-22 01:45:41,463 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_destroy_device [2022-11-22 01:45:41,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_usb_free_coherent [2022-11-22 01:45:41,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_usb_free_coherent [2022-11-22 01:45:41,463 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_open [2022-11-22 01:45:41,463 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_open [2022-11-22 01:45:41,463 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2022-11-22 01:45:41,463 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2022-11-22 01:45:41,463 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_rescale [2022-11-22 01:45:41,463 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_rescale [2022-11-22 01:45:41,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:45:41,463 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-22 01:45:41,463 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-22 01:45:41,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-22 01:45:41,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-22 01:45:41,464 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_close [2022-11-22 01:45:41,464 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_close [2022-11-22 01:45:41,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-22 01:45:41,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-22 01:45:41,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_7_2 [2022-11-22 01:45:41,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_7_2 [2022-11-22 01:45:41,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2022-11-22 01:45:41,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2022-11-22 01:45:41,464 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface_async [2022-11-22 01:45:41,464 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface_async [2022-11-22 01:45:41,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-22 01:45:41,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-22 01:45:41,465 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_find_fields [2022-11-22 01:45:41,465 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_find_fields [2022-11-22 01:45:41,465 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-22 01:45:41,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-22 01:45:41,465 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_quirks_exit [2022-11-22 01:45:41,465 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_quirks_exit [2022-11-22 01:45:41,465 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-22 01:45:41,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-22 01:45:41,465 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_restart_queues [2022-11-22 01:45:41,465 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_restart_queues [2022-11-22 01:45:41,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-22 01:45:41,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-22 01:45:41,465 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2022-11-22 01:45:41,466 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2022-11-22 01:45:41,466 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-22 01:45:41,466 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-22 01:45:41,466 INFO L130 BoogieDeclarations]: Found specification of procedure hid_device_io_stop [2022-11-22 01:45:41,466 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_device_io_stop [2022-11-22 01:45:41,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-22 01:45:41,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-22 01:45:41,466 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_start [2022-11-22 01:45:41,466 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_start [2022-11-22 01:45:41,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-22 01:45:41,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-22 01:45:41,466 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-22 01:45:41,466 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-22 01:45:41,467 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-22 01:45:41,467 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-22 01:45:41,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_list_lock_of_hiddev [2022-11-22 01:45:41,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_list_lock_of_hiddev [2022-11-22 01:45:41,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-22 01:45:41,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-22 01:45:41,467 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-22 01:45:41,467 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-22 01:45:41,467 INFO L130 BoogieDeclarations]: Found specification of procedure hid_pre_reset [2022-11-22 01:45:41,467 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_pre_reset [2022-11-22 01:45:41,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-22 01:45:41,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-22 01:45:41,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_list_lock_of_hiddev [2022-11-22 01:45:41,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_list_lock_of_hiddev [2022-11-22 01:45:41,468 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-22 01:45:41,468 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-22 01:45:41,468 INFO L130 BoogieDeclarations]: Found specification of procedure hid_post_reset [2022-11-22 01:45:41,468 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_post_reset [2022-11-22 01:45:41,468 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_get_power [2022-11-22 01:45:41,468 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_get_power [2022-11-22 01:45:41,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:45:41,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_119 [2022-11-22 01:45:41,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_119 [2022-11-22 01:45:42,761 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:45:42,771 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:45:43,178 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 01:46:01,696 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:46:03,558 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:46:03,559 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-22 01:46:03,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:46:03 BoogieIcfgContainer [2022-11-22 01:46:03,565 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:46:03,567 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:46:03,567 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:46:03,571 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:46:03,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:45:33" (1/3) ... [2022-11-22 01:46:03,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d4c831b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:46:03, skipping insertion in model container [2022-11-22 01:46:03,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:40" (2/3) ... [2022-11-22 01:46:03,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d4c831b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:46:03, skipping insertion in model container [2022-11-22 01:46:03,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:46:03" (3/3) ... [2022-11-22 01:46:03,574 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i [2022-11-22 01:46:03,597 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:46:03,597 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2022-11-22 01:46:03,690 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:46:03,697 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;@1c047c4b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:46:03,697 INFO L358 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2022-11-22 01:46:03,709 INFO L276 IsEmpty]: Start isEmpty. Operand has 2395 states, 1409 states have (on average 1.3364088005677786) internal successors, (1883), 1501 states have internal predecessors, (1883), 768 states have call successors, (768), 186 states have call predecessors, (768), 185 states have return successors, (762), 755 states have call predecessors, (762), 762 states have call successors, (762) [2022-11-22 01:46:03,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-22 01:46:03,718 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:46:03,719 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:46:03,719 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-22 01:46:03,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:46:03,725 INFO L85 PathProgramCache]: Analyzing trace with hash 304032791, now seen corresponding path program 1 times [2022-11-22 01:46:03,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:46:03,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975284229] [2022-11-22 01:46:03,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:46:03,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:46:04,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:46:06,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:46:06,123 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:46:06,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975284229] [2022-11-22 01:46:06,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975284229] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:46:06,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:46:06,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 01:46:06,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772833981] [2022-11-22 01:46:06,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:46:06,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:46:06,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:46:06,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:46:06,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:46:06,184 INFO L87 Difference]: Start difference. First operand has 2395 states, 1409 states have (on average 1.3364088005677786) internal successors, (1883), 1501 states have internal predecessors, (1883), 768 states have call successors, (768), 186 states have call predecessors, (768), 185 states have return successors, (762), 755 states have call predecessors, (762), 762 states have call successors, (762) Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-22 01:46:11,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:46:20,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:46:20,871 INFO L93 Difference]: Finished difference Result 4943 states and 7256 transitions. [2022-11-22 01:46:20,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 01:46:20,874 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2022-11-22 01:46:20,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:46:20,905 INFO L225 Difference]: With dead ends: 4943 [2022-11-22 01:46:20,905 INFO L226 Difference]: Without dead ends: 2540 [2022-11-22 01:46:20,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-22 01:46:20,924 INFO L413 NwaCegarLoop]: 3036 mSDtfsCounter, 3329 mSDsluCounter, 7768 mSDsCounter, 0 mSdLazyCounter, 3085 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3338 SdHoareTripleChecker+Valid, 10804 SdHoareTripleChecker+Invalid, 3088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3085 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:46:20,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3338 Valid, 10804 Invalid, 3088 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3085 Invalid, 1 Unknown, 0 Unchecked, 14.1s Time] [2022-11-22 01:46:20,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2540 states. [2022-11-22 01:46:21,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2540 to 2523. [2022-11-22 01:46:21,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2523 states, 1480 states have (on average 1.3033783783783783) internal successors, (1929), 1571 states have internal predecessors, (1929), 799 states have call successors, (799), 214 states have call predecessors, (799), 211 states have return successors, (800), 786 states have call predecessors, (800), 797 states have call successors, (800) [2022-11-22 01:46:21,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2523 states to 2523 states and 3528 transitions. [2022-11-22 01:46:21,202 INFO L78 Accepts]: Start accepts. Automaton has 2523 states and 3528 transitions. Word has length 22 [2022-11-22 01:46:21,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:46:21,204 INFO L495 AbstractCegarLoop]: Abstraction has 2523 states and 3528 transitions. [2022-11-22 01:46:21,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-22 01:46:21,204 INFO L276 IsEmpty]: Start isEmpty. Operand 2523 states and 3528 transitions. [2022-11-22 01:46:21,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-22 01:46:21,209 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:46:21,209 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:46:21,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:46:21,209 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-22 01:46:21,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:46:21,210 INFO L85 PathProgramCache]: Analyzing trace with hash -17336334, now seen corresponding path program 1 times [2022-11-22 01:46:21,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:46:21,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676642935] [2022-11-22 01:46:21,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:46:21,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:46:21,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:46:21,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:46:21,750 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:46:21,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676642935] [2022-11-22 01:46:21,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676642935] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:46:21,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:46:21,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:46:21,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691034355] [2022-11-22 01:46:21,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:46:21,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:46:21,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:46:21,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:46:21,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:46:21,753 INFO L87 Difference]: Start difference. First operand 2523 states and 3528 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-22 01:46:25,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:46:25,318 INFO L93 Difference]: Finished difference Result 5037 states and 7143 transitions. [2022-11-22 01:46:25,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:46:25,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 28 [2022-11-22 01:46:25,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:46:25,337 INFO L225 Difference]: With dead ends: 5037 [2022-11-22 01:46:25,337 INFO L226 Difference]: Without dead ends: 2517 [2022-11-22 01:46:25,351 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 [2022-11-22 01:46:25,352 INFO L413 NwaCegarLoop]: 2960 mSDtfsCounter, 3328 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3328 SdHoareTripleChecker+Valid, 2960 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:46:25,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3328 Valid, 2960 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-22 01:46:25,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2517 states. [2022-11-22 01:46:25,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2517 to 2517. [2022-11-22 01:46:25,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2517 states, 1475 states have (on average 1.3016949152542372) internal successors, (1920), 1565 states have internal predecessors, (1920), 799 states have call successors, (799), 214 states have call predecessors, (799), 211 states have return successors, (800), 786 states have call predecessors, (800), 797 states have call successors, (800) [2022-11-22 01:46:25,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2517 states to 2517 states and 3519 transitions. [2022-11-22 01:46:25,507 INFO L78 Accepts]: Start accepts. Automaton has 2517 states and 3519 transitions. Word has length 28 [2022-11-22 01:46:25,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:46:25,507 INFO L495 AbstractCegarLoop]: Abstraction has 2517 states and 3519 transitions. [2022-11-22 01:46:25,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-22 01:46:25,508 INFO L276 IsEmpty]: Start isEmpty. Operand 2517 states and 3519 transitions. [2022-11-22 01:46:25,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-22 01:46:25,512 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:46:25,513 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-22 01:46:25,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:46:25,513 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-22 01:46:25,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:46:25,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1418846801, now seen corresponding path program 1 times [2022-11-22 01:46:25,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:46:25,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554646624] [2022-11-22 01:46:25,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:46:25,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:46:25,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:46:26,006 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 01:46:26,007 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:46:26,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554646624] [2022-11-22 01:46:26,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554646624] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:46:26,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:46:26,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:46:26,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833208610] [2022-11-22 01:46:26,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:46:26,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:46:26,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:46:26,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:46:26,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:46:26,011 INFO L87 Difference]: Start difference. First operand 2517 states and 3519 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-22 01:46:31,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:46:31,214 INFO L93 Difference]: Finished difference Result 5108 states and 7184 transitions. [2022-11-22 01:46:31,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:46:31,215 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 41 [2022-11-22 01:46:31,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:46:31,235 INFO L225 Difference]: With dead ends: 5108 [2022-11-22 01:46:31,235 INFO L226 Difference]: Without dead ends: 2846 [2022-11-22 01:46:31,246 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 [2022-11-22 01:46:31,247 INFO L413 NwaCegarLoop]: 3154 mSDtfsCounter, 338 mSDsluCounter, 2851 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 535 SdHoareTripleChecker+Valid, 6005 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:46:31,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [535 Valid, 6005 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-22 01:46:31,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2846 states. [2022-11-22 01:46:31,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2846 to 2517. [2022-11-22 01:46:31,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2517 states, 1475 states have (on average 1.3010169491525423) internal successors, (1919), 1564 states have internal predecessors, (1919), 799 states have call successors, (799), 214 states have call predecessors, (799), 211 states have return successors, (800), 786 states have call predecessors, (800), 797 states have call successors, (800) [2022-11-22 01:46:31,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2517 states to 2517 states and 3518 transitions. [2022-11-22 01:46:31,578 INFO L78 Accepts]: Start accepts. Automaton has 2517 states and 3518 transitions. Word has length 41 [2022-11-22 01:46:31,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:46:31,579 INFO L495 AbstractCegarLoop]: Abstraction has 2517 states and 3518 transitions. [2022-11-22 01:46:31,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-22 01:46:31,579 INFO L276 IsEmpty]: Start isEmpty. Operand 2517 states and 3518 transitions. [2022-11-22 01:46:31,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-22 01:46:31,587 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:46:31,588 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] [2022-11-22 01:46:31,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:46:31,589 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-22 01:46:31,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:46:31,590 INFO L85 PathProgramCache]: Analyzing trace with hash 199872570, now seen corresponding path program 1 times [2022-11-22 01:46:31,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:46:31,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372812356] [2022-11-22 01:46:31,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:46:31,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:46:31,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:46:32,541 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-22 01:46:32,541 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:46:32,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372812356] [2022-11-22 01:46:32,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372812356] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:46:32,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:46:32,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:46:32,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392183401] [2022-11-22 01:46:32,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:46:32,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:46:32,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:46:32,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:46:32,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:46:32,544 INFO L87 Difference]: Start difference. First operand 2517 states and 3518 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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) [2022-11-22 01:46:37,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:46:37,735 INFO L93 Difference]: Finished difference Result 2517 states and 3518 transitions. [2022-11-22 01:46:37,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:46:37,736 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 56 [2022-11-22 01:46:37,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:46:37,754 INFO L225 Difference]: With dead ends: 2517 [2022-11-22 01:46:37,755 INFO L226 Difference]: Without dead ends: 2515 [2022-11-22 01:46:37,757 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 [2022-11-22 01:46:37,759 INFO L413 NwaCegarLoop]: 2957 mSDtfsCounter, 3312 mSDsluCounter, 2957 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3314 SdHoareTripleChecker+Valid, 5914 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:46:37,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3314 Valid, 5914 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-22 01:46:37,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2515 states. [2022-11-22 01:46:37,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2515 to 2515. [2022-11-22 01:46:37,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2515 states, 1474 states have (on average 1.3005427408412482) internal successors, (1917), 1562 states have internal predecessors, (1917), 799 states have call successors, (799), 214 states have call predecessors, (799), 211 states have return successors, (800), 786 states have call predecessors, (800), 797 states have call successors, (800) [2022-11-22 01:46:38,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2515 states to 2515 states and 3516 transitions. [2022-11-22 01:46:38,002 INFO L78 Accepts]: Start accepts. Automaton has 2515 states and 3516 transitions. Word has length 56 [2022-11-22 01:46:38,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:46:38,002 INFO L495 AbstractCegarLoop]: Abstraction has 2515 states and 3516 transitions. [2022-11-22 01:46:38,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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) [2022-11-22 01:46:38,003 INFO L276 IsEmpty]: Start isEmpty. Operand 2515 states and 3516 transitions. [2022-11-22 01:46:38,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-22 01:46:38,004 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:46:38,005 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] [2022-11-22 01:46:38,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:46:38,005 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-22 01:46:38,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:46:38,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1508198519, now seen corresponding path program 1 times [2022-11-22 01:46:38,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:46:38,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742365923] [2022-11-22 01:46:38,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:46:38,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:46:38,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:46:38,752 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-22 01:46:38,753 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:46:38,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742365923] [2022-11-22 01:46:38,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742365923] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:46:38,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:46:38,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:46:38,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309326804] [2022-11-22 01:46:38,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:46:38,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:46:38,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:46:38,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:46:38,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:46:38,755 INFO L87 Difference]: Start difference. First operand 2515 states and 3516 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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) [2022-11-22 01:46:40,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:46:42,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:46:46,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:46:47,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:46:47,499 INFO L93 Difference]: Finished difference Result 2515 states and 3516 transitions. [2022-11-22 01:46:47,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:46:47,500 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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 61 [2022-11-22 01:46:47,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:46:47,515 INFO L225 Difference]: With dead ends: 2515 [2022-11-22 01:46:47,516 INFO L226 Difference]: Without dead ends: 2513 [2022-11-22 01:46:47,518 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 [2022-11-22 01:46:47,519 INFO L413 NwaCegarLoop]: 2955 mSDtfsCounter, 3309 mSDsluCounter, 2955 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3311 SdHoareTripleChecker+Valid, 5910 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:46:47,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3311 Valid, 5910 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 760 Invalid, 1 Unknown, 0 Unchecked, 8.5s Time] [2022-11-22 01:46:47,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2513 states. [2022-11-22 01:46:47,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2513 to 2513. [2022-11-22 01:46:47,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2513 states, 1473 states have (on average 1.3000678886625934) internal successors, (1915), 1560 states have internal predecessors, (1915), 799 states have call successors, (799), 214 states have call predecessors, (799), 211 states have return successors, (800), 786 states have call predecessors, (800), 797 states have call successors, (800) [2022-11-22 01:46:47,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2513 states to 2513 states and 3514 transitions. [2022-11-22 01:46:47,708 INFO L78 Accepts]: Start accepts. Automaton has 2513 states and 3514 transitions. Word has length 61 [2022-11-22 01:46:47,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:46:47,709 INFO L495 AbstractCegarLoop]: Abstraction has 2513 states and 3514 transitions. [2022-11-22 01:46:47,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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) [2022-11-22 01:46:47,709 INFO L276 IsEmpty]: Start isEmpty. Operand 2513 states and 3514 transitions. [2022-11-22 01:46:47,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-22 01:46:47,712 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:46:47,712 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] [2022-11-22 01:46:47,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 01:46:47,713 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-22 01:46:47,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:46:47,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1293823482, now seen corresponding path program 1 times [2022-11-22 01:46:47,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:46:47,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248603844] [2022-11-22 01:46:47,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:46:47,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:46:47,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:46:48,464 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-22 01:46:48,464 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:46:48,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248603844] [2022-11-22 01:46:48,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248603844] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:46:48,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:46:48,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:46:48,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206269014] [2022-11-22 01:46:48,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:46:48,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:46:48,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:46:48,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:46:48,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:46:48,468 INFO L87 Difference]: Start difference. First operand 2513 states and 3514 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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) [2022-11-22 01:46:53,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:46:53,147 INFO L93 Difference]: Finished difference Result 2513 states and 3514 transitions. [2022-11-22 01:46:53,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:46:53,148 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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 66 [2022-11-22 01:46:53,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:46:53,165 INFO L225 Difference]: With dead ends: 2513 [2022-11-22 01:46:53,165 INFO L226 Difference]: Without dead ends: 2511 [2022-11-22 01:46:53,167 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 [2022-11-22 01:46:53,168 INFO L413 NwaCegarLoop]: 2953 mSDtfsCounter, 3306 mSDsluCounter, 2953 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3308 SdHoareTripleChecker+Valid, 5906 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:46:53,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3308 Valid, 5906 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-11-22 01:46:53,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2511 states. [2022-11-22 01:46:53,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2511 to 2511. [2022-11-22 01:46:53,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2511 states, 1472 states have (on average 1.299592391304348) internal successors, (1913), 1558 states have internal predecessors, (1913), 799 states have call successors, (799), 214 states have call predecessors, (799), 211 states have return successors, (800), 786 states have call predecessors, (800), 797 states have call successors, (800) [2022-11-22 01:46:53,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2511 states to 2511 states and 3512 transitions. [2022-11-22 01:46:53,364 INFO L78 Accepts]: Start accepts. Automaton has 2511 states and 3512 transitions. Word has length 66 [2022-11-22 01:46:53,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:46:53,365 INFO L495 AbstractCegarLoop]: Abstraction has 2511 states and 3512 transitions. [2022-11-22 01:46:53,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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) [2022-11-22 01:46:53,365 INFO L276 IsEmpty]: Start isEmpty. Operand 2511 states and 3512 transitions. [2022-11-22 01:46:53,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-22 01:46:53,366 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:46:53,367 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] [2022-11-22 01:46:53,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 01:46:53,367 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-22 01:46:53,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:46:53,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1288093380, now seen corresponding path program 1 times [2022-11-22 01:46:53,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:46:53,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472071575] [2022-11-22 01:46:53,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:46:53,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:46:53,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:46:54,009 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-22 01:46:54,009 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:46:54,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472071575] [2022-11-22 01:46:54,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472071575] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:46:54,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:46:54,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:46:54,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842088672] [2022-11-22 01:46:54,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:46:54,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:46:54,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:46:54,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:46:54,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:46:54,022 INFO L87 Difference]: Start difference. First operand 2511 states and 3512 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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) [2022-11-22 01:46:58,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:46:58,829 INFO L93 Difference]: Finished difference Result 2511 states and 3512 transitions. [2022-11-22 01:46:58,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:46:58,830 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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 71 [2022-11-22 01:46:58,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:46:58,846 INFO L225 Difference]: With dead ends: 2511 [2022-11-22 01:46:58,846 INFO L226 Difference]: Without dead ends: 2509 [2022-11-22 01:46:58,848 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 [2022-11-22 01:46:58,849 INFO L413 NwaCegarLoop]: 2951 mSDtfsCounter, 3303 mSDsluCounter, 2951 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3305 SdHoareTripleChecker+Valid, 5902 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:46:58,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3305 Valid, 5902 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-22 01:46:58,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2509 states. [2022-11-22 01:46:59,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2509 to 2509. [2022-11-22 01:46:59,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2509 states, 1471 states have (on average 1.2991162474507139) internal successors, (1911), 1556 states have internal predecessors, (1911), 799 states have call successors, (799), 214 states have call predecessors, (799), 211 states have return successors, (800), 786 states have call predecessors, (800), 797 states have call successors, (800) [2022-11-22 01:46:59,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2509 states to 2509 states and 3510 transitions. [2022-11-22 01:46:59,062 INFO L78 Accepts]: Start accepts. Automaton has 2509 states and 3510 transitions. Word has length 71 [2022-11-22 01:46:59,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:46:59,062 INFO L495 AbstractCegarLoop]: Abstraction has 2509 states and 3510 transitions. [2022-11-22 01:46:59,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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) [2022-11-22 01:46:59,063 INFO L276 IsEmpty]: Start isEmpty. Operand 2509 states and 3510 transitions. [2022-11-22 01:46:59,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-22 01:46:59,064 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:46:59,065 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] [2022-11-22 01:46:59,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 01:46:59,065 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-22 01:46:59,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:46:59,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1538184265, now seen corresponding path program 1 times [2022-11-22 01:46:59,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:46:59,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187338647] [2022-11-22 01:46:59,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:46:59,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:46:59,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:46:59,781 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-22 01:46:59,782 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:46:59,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187338647] [2022-11-22 01:46:59,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187338647] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:46:59,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:46:59,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:46:59,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370848734] [2022-11-22 01:46:59,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:46:59,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:46:59,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:46:59,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:46:59,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:46:59,785 INFO L87 Difference]: Start difference. First operand 2509 states and 3510 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2022-11-22 01:47:04,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:47:04,548 INFO L93 Difference]: Finished difference Result 2509 states and 3510 transitions. [2022-11-22 01:47:04,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:47:04,549 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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 76 [2022-11-22 01:47:04,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:47:04,564 INFO L225 Difference]: With dead ends: 2509 [2022-11-22 01:47:04,565 INFO L226 Difference]: Without dead ends: 2507 [2022-11-22 01:47:04,567 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 [2022-11-22 01:47:04,568 INFO L413 NwaCegarLoop]: 2949 mSDtfsCounter, 3300 mSDsluCounter, 2949 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3302 SdHoareTripleChecker+Valid, 5898 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:47:04,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3302 Valid, 5898 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-11-22 01:47:04,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2507 states. [2022-11-22 01:47:04,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2507 to 2507. [2022-11-22 01:47:04,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2507 states, 1470 states have (on average 1.2986394557823129) internal successors, (1909), 1554 states have internal predecessors, (1909), 799 states have call successors, (799), 214 states have call predecessors, (799), 211 states have return successors, (800), 786 states have call predecessors, (800), 797 states have call successors, (800) [2022-11-22 01:47:04,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2507 states to 2507 states and 3508 transitions. [2022-11-22 01:47:04,751 INFO L78 Accepts]: Start accepts. Automaton has 2507 states and 3508 transitions. Word has length 76 [2022-11-22 01:47:04,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:47:04,752 INFO L495 AbstractCegarLoop]: Abstraction has 2507 states and 3508 transitions. [2022-11-22 01:47:04,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2022-11-22 01:47:04,752 INFO L276 IsEmpty]: Start isEmpty. Operand 2507 states and 3508 transitions. [2022-11-22 01:47:04,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-22 01:47:04,754 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:47:04,754 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] [2022-11-22 01:47:04,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 01:47:04,755 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-22 01:47:04,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:47:04,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1826250873, now seen corresponding path program 1 times [2022-11-22 01:47:04,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:47:04,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605470440] [2022-11-22 01:47:04,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:47:04,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:47:04,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:47:05,481 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-22 01:47:05,481 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:47:05,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605470440] [2022-11-22 01:47:05,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605470440] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:47:05,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:47:05,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:47:05,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596475781] [2022-11-22 01:47:05,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:47:05,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:47:05,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:47:05,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:47:05,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:47:05,485 INFO L87 Difference]: Start difference. First operand 2507 states and 3508 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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) [2022-11-22 01:47:10,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:47:10,171 INFO L93 Difference]: Finished difference Result 2507 states and 3508 transitions. [2022-11-22 01:47:10,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:47:10,172 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 81 [2022-11-22 01:47:10,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:47:10,186 INFO L225 Difference]: With dead ends: 2507 [2022-11-22 01:47:10,187 INFO L226 Difference]: Without dead ends: 2505 [2022-11-22 01:47:10,189 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 [2022-11-22 01:47:10,189 INFO L413 NwaCegarLoop]: 2947 mSDtfsCounter, 3297 mSDsluCounter, 2947 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3299 SdHoareTripleChecker+Valid, 5894 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:47:10,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3299 Valid, 5894 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-22 01:47:10,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2505 states. [2022-11-22 01:47:10,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2505 to 2505. [2022-11-22 01:47:10,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2505 states, 1469 states have (on average 1.2981620149761743) internal successors, (1907), 1552 states have internal predecessors, (1907), 799 states have call successors, (799), 214 states have call predecessors, (799), 211 states have return successors, (800), 786 states have call predecessors, (800), 797 states have call successors, (800) [2022-11-22 01:47:10,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2505 states to 2505 states and 3506 transitions. [2022-11-22 01:47:10,422 INFO L78 Accepts]: Start accepts. Automaton has 2505 states and 3506 transitions. Word has length 81 [2022-11-22 01:47:10,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:47:10,423 INFO L495 AbstractCegarLoop]: Abstraction has 2505 states and 3506 transitions. [2022-11-22 01:47:10,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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) [2022-11-22 01:47:10,423 INFO L276 IsEmpty]: Start isEmpty. Operand 2505 states and 3506 transitions. [2022-11-22 01:47:10,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-22 01:47:10,425 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:47:10,425 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] [2022-11-22 01:47:10,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 01:47:10,425 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-22 01:47:10,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:47:10,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1845731778, now seen corresponding path program 1 times [2022-11-22 01:47:10,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:47:10,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590889725] [2022-11-22 01:47:10,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:47:10,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:47:10,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:47:11,256 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-22 01:47:11,257 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:47:11,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590889725] [2022-11-22 01:47:11,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590889725] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:47:11,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:47:11,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:47:11,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531882393] [2022-11-22 01:47:11,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:47:11,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:47:11,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:47:11,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:47:11,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:47:11,259 INFO L87 Difference]: Start difference. First operand 2505 states and 3506 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, (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) [2022-11-22 01:47:16,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:47:16,434 INFO L93 Difference]: Finished difference Result 2505 states and 3506 transitions. [2022-11-22 01:47:16,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:47:16,434 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, (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 86 [2022-11-22 01:47:16,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:47:16,448 INFO L225 Difference]: With dead ends: 2505 [2022-11-22 01:47:16,448 INFO L226 Difference]: Without dead ends: 2503 [2022-11-22 01:47:16,450 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 [2022-11-22 01:47:16,451 INFO L413 NwaCegarLoop]: 2945 mSDtfsCounter, 3294 mSDsluCounter, 2945 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3296 SdHoareTripleChecker+Valid, 5890 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:47:16,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3296 Valid, 5890 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-22 01:47:16,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2503 states. [2022-11-22 01:47:16,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2503 to 2503. [2022-11-22 01:47:16,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2503 states, 1468 states have (on average 1.297683923705722) internal successors, (1905), 1550 states have internal predecessors, (1905), 799 states have call successors, (799), 214 states have call predecessors, (799), 211 states have return successors, (800), 786 states have call predecessors, (800), 797 states have call successors, (800) [2022-11-22 01:47:16,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2503 states to 2503 states and 3504 transitions. [2022-11-22 01:47:16,693 INFO L78 Accepts]: Start accepts. Automaton has 2503 states and 3504 transitions. Word has length 86 [2022-11-22 01:47:16,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:47:16,694 INFO L495 AbstractCegarLoop]: Abstraction has 2503 states and 3504 transitions. [2022-11-22 01:47:16,694 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, (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) [2022-11-22 01:47:16,694 INFO L276 IsEmpty]: Start isEmpty. Operand 2503 states and 3504 transitions. [2022-11-22 01:47:16,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-22 01:47:16,696 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:47:16,696 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] [2022-11-22 01:47:16,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-22 01:47:16,696 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-22 01:47:16,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:47:16,697 INFO L85 PathProgramCache]: Analyzing trace with hash 361174335, now seen corresponding path program 1 times [2022-11-22 01:47:16,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:47:16,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984867981] [2022-11-22 01:47:16,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:47:16,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:47:16,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:47:17,334 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-22 01:47:17,335 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:47:17,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984867981] [2022-11-22 01:47:17,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984867981] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:47:17,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:47:17,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:47:17,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505151844] [2022-11-22 01:47:17,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:47:17,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:47:17,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:47:17,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:47:17,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:47:17,337 INFO L87 Difference]: Start difference. First operand 2503 states and 3504 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, (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) [2022-11-22 01:47:18,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:47:23,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:47:23,642 INFO L93 Difference]: Finished difference Result 2503 states and 3504 transitions. [2022-11-22 01:47:23,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:47:23,643 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, (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 91 [2022-11-22 01:47:23,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:47:23,658 INFO L225 Difference]: With dead ends: 2503 [2022-11-22 01:47:23,658 INFO L226 Difference]: Without dead ends: 2501 [2022-11-22 01:47:23,660 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 [2022-11-22 01:47:23,661 INFO L413 NwaCegarLoop]: 2943 mSDtfsCounter, 3295 mSDsluCounter, 2939 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3297 SdHoareTripleChecker+Valid, 5882 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:47:23,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3297 Valid, 5882 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-11-22 01:47:23,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2501 states. [2022-11-22 01:47:23,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2501 to 2501. [2022-11-22 01:47:23,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2501 states, 1467 states have (on average 1.2972051806407634) internal successors, (1903), 1548 states have internal predecessors, (1903), 799 states have call successors, (799), 214 states have call predecessors, (799), 211 states have return successors, (800), 786 states have call predecessors, (800), 797 states have call successors, (800) [2022-11-22 01:47:24,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2501 states to 2501 states and 3502 transitions. [2022-11-22 01:47:24,008 INFO L78 Accepts]: Start accepts. Automaton has 2501 states and 3502 transitions. Word has length 91 [2022-11-22 01:47:24,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:47:24,009 INFO L495 AbstractCegarLoop]: Abstraction has 2501 states and 3502 transitions. [2022-11-22 01:47:24,009 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, (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) [2022-11-22 01:47:24,009 INFO L276 IsEmpty]: Start isEmpty. Operand 2501 states and 3502 transitions. [2022-11-22 01:47:24,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-22 01:47:24,012 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:47:24,012 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] [2022-11-22 01:47:24,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-22 01:47:24,013 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-22 01:47:24,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:47:24,014 INFO L85 PathProgramCache]: Analyzing trace with hash -803593950, now seen corresponding path program 1 times [2022-11-22 01:47:24,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:47:24,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103216968] [2022-11-22 01:47:24,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:47:24,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:47:24,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:47:24,617 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-22 01:47:24,617 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:47:24,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103216968] [2022-11-22 01:47:24,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103216968] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:47:24,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:47:24,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:47:24,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224099639] [2022-11-22 01:47:24,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:47:24,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:47:24,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:47:24,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:47:24,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:47:24,620 INFO L87 Difference]: Start difference. First operand 2501 states and 3502 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2022-11-22 01:47:30,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:47:30,604 INFO L93 Difference]: Finished difference Result 2501 states and 3502 transitions. [2022-11-22 01:47:30,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:47:30,604 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 93 [2022-11-22 01:47:30,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:47:30,618 INFO L225 Difference]: With dead ends: 2501 [2022-11-22 01:47:30,618 INFO L226 Difference]: Without dead ends: 2499 [2022-11-22 01:47:30,620 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 [2022-11-22 01:47:30,620 INFO L413 NwaCegarLoop]: 2941 mSDtfsCounter, 3287 mSDsluCounter, 2941 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3289 SdHoareTripleChecker+Valid, 5882 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:47:30,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3289 Valid, 5882 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-11-22 01:47:30,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2499 states. [2022-11-22 01:47:30,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2499 to 2499. [2022-11-22 01:47:30,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2499 states, 1466 states have (on average 1.2967257844474762) internal successors, (1901), 1546 states have internal predecessors, (1901), 799 states have call successors, (799), 214 states have call predecessors, (799), 211 states have return successors, (800), 786 states have call predecessors, (800), 797 states have call successors, (800) [2022-11-22 01:47:30,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2499 states to 2499 states and 3500 transitions. [2022-11-22 01:47:30,839 INFO L78 Accepts]: Start accepts. Automaton has 2499 states and 3500 transitions. Word has length 93 [2022-11-22 01:47:30,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:47:30,840 INFO L495 AbstractCegarLoop]: Abstraction has 2499 states and 3500 transitions. [2022-11-22 01:47:30,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2022-11-22 01:47:30,841 INFO L276 IsEmpty]: Start isEmpty. Operand 2499 states and 3500 transitions. [2022-11-22 01:47:30,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-22 01:47:30,842 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:47:30,842 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] [2022-11-22 01:47:30,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-22 01:47:30,843 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-22 01:47:30,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:47:30,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1149352326, now seen corresponding path program 1 times [2022-11-22 01:47:30,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:47:30,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228408289] [2022-11-22 01:47:30,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:47:30,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:47:30,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:47:31,392 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-22 01:47:31,392 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:47:31,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228408289] [2022-11-22 01:47:31,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228408289] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:47:31,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:47:31,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:47:31,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154414907] [2022-11-22 01:47:31,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:47:31,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:47:31,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:47:31,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:47:31,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:47:31,395 INFO L87 Difference]: Start difference. First operand 2499 states and 3500 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2022-11-22 01:47:36,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:47:36,677 INFO L93 Difference]: Finished difference Result 2499 states and 3500 transitions. [2022-11-22 01:47:36,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:47:36,679 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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 98 [2022-11-22 01:47:36,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:47:36,690 INFO L225 Difference]: With dead ends: 2499 [2022-11-22 01:47:36,690 INFO L226 Difference]: Without dead ends: 2497 [2022-11-22 01:47:36,691 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 [2022-11-22 01:47:36,692 INFO L413 NwaCegarLoop]: 2939 mSDtfsCounter, 3286 mSDsluCounter, 2939 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3288 SdHoareTripleChecker+Valid, 5878 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:47:36,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3288 Valid, 5878 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-22 01:47:36,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2497 states. [2022-11-22 01:47:36,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2497 to 2497. [2022-11-22 01:47:36,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2497 states, 1465 states have (on average 1.296245733788396) internal successors, (1899), 1544 states have internal predecessors, (1899), 799 states have call successors, (799), 214 states have call predecessors, (799), 211 states have return successors, (800), 786 states have call predecessors, (800), 797 states have call successors, (800) [2022-11-22 01:47:36,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2497 states to 2497 states and 3498 transitions. [2022-11-22 01:47:36,907 INFO L78 Accepts]: Start accepts. Automaton has 2497 states and 3498 transitions. Word has length 98 [2022-11-22 01:47:36,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:47:36,908 INFO L495 AbstractCegarLoop]: Abstraction has 2497 states and 3498 transitions. [2022-11-22 01:47:36,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2022-11-22 01:47:36,908 INFO L276 IsEmpty]: Start isEmpty. Operand 2497 states and 3498 transitions. [2022-11-22 01:47:36,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-11-22 01:47:36,910 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:47:36,910 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] [2022-11-22 01:47:36,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-22 01:47:36,910 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-22 01:47:36,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:47:36,911 INFO L85 PathProgramCache]: Analyzing trace with hash -320868934, now seen corresponding path program 1 times [2022-11-22 01:47:36,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:47:36,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279207657] [2022-11-22 01:47:36,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:47:36,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:47:37,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:47:37,364 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-11-22 01:47:37,364 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:47:37,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279207657] [2022-11-22 01:47:37,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279207657] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:47:37,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:47:37,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:47:37,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573799008] [2022-11-22 01:47:37,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:47:37,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:47:37,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:47:37,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:47:37,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:47:37,367 INFO L87 Difference]: Start difference. First operand 2497 states and 3498 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-22 01:47:39,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:47:40,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:47:40,712 INFO L93 Difference]: Finished difference Result 4878 states and 6824 transitions. [2022-11-22 01:47:40,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:47:40,713 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 129 [2022-11-22 01:47:40,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:47:40,726 INFO L225 Difference]: With dead ends: 4878 [2022-11-22 01:47:40,726 INFO L226 Difference]: Without dead ends: 2493 [2022-11-22 01:47:40,736 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 [2022-11-22 01:47:40,737 INFO L413 NwaCegarLoop]: 2935 mSDtfsCounter, 3305 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3305 SdHoareTripleChecker+Valid, 2935 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:47:40,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3305 Valid, 2935 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-22 01:47:40,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2493 states. [2022-11-22 01:47:41,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2493 to 2493. [2022-11-22 01:47:41,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2493 states, 1462 states have (on average 1.2954856361149112) internal successors, (1894), 1540 states have internal predecessors, (1894), 799 states have call successors, (799), 214 states have call predecessors, (799), 211 states have return successors, (800), 786 states have call predecessors, (800), 797 states have call successors, (800) [2022-11-22 01:47:41,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2493 states to 2493 states and 3493 transitions. [2022-11-22 01:47:41,043 INFO L78 Accepts]: Start accepts. Automaton has 2493 states and 3493 transitions. Word has length 129 [2022-11-22 01:47:41,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:47:41,044 INFO L495 AbstractCegarLoop]: Abstraction has 2493 states and 3493 transitions. [2022-11-22 01:47:41,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-22 01:47:41,044 INFO L276 IsEmpty]: Start isEmpty. Operand 2493 states and 3493 transitions. [2022-11-22 01:47:41,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-22 01:47:41,046 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:47:41,046 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] [2022-11-22 01:47:41,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-22 01:47:41,047 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-22 01:47:41,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:47:41,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1762373388, now seen corresponding path program 1 times [2022-11-22 01:47:41,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:47:41,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444740108] [2022-11-22 01:47:41,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:47:41,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:47:41,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:47:41,747 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-22 01:47:41,747 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:47:41,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444740108] [2022-11-22 01:47:41,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444740108] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:47:41,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:47:41,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:47:41,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119799657] [2022-11-22 01:47:41,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:47:41,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:47:41,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:47:41,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:47:41,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:47:41,749 INFO L87 Difference]: Start difference. First operand 2493 states and 3493 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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) [2022-11-22 01:47:47,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:47:47,518 INFO L93 Difference]: Finished difference Result 2493 states and 3493 transitions. [2022-11-22 01:47:47,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:47:47,519 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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 103 [2022-11-22 01:47:47,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:47:47,530 INFO L225 Difference]: With dead ends: 2493 [2022-11-22 01:47:47,530 INFO L226 Difference]: Without dead ends: 2491 [2022-11-22 01:47:47,532 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 [2022-11-22 01:47:47,533 INFO L413 NwaCegarLoop]: 2932 mSDtfsCounter, 3278 mSDsluCounter, 2932 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3280 SdHoareTripleChecker+Valid, 5864 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:47:47,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3280 Valid, 5864 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-11-22 01:47:47,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2491 states. [2022-11-22 01:47:47,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2491 to 2491. [2022-11-22 01:47:47,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2491 states, 1461 states have (on average 1.2950034223134839) internal successors, (1892), 1538 states have internal predecessors, (1892), 799 states have call successors, (799), 214 states have call predecessors, (799), 211 states have return successors, (800), 786 states have call predecessors, (800), 797 states have call successors, (800) [2022-11-22 01:47:47,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2491 states to 2491 states and 3491 transitions. [2022-11-22 01:47:47,748 INFO L78 Accepts]: Start accepts. Automaton has 2491 states and 3491 transitions. Word has length 103 [2022-11-22 01:47:47,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:47:47,748 INFO L495 AbstractCegarLoop]: Abstraction has 2491 states and 3491 transitions. [2022-11-22 01:47:47,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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) [2022-11-22 01:47:47,749 INFO L276 IsEmpty]: Start isEmpty. Operand 2491 states and 3491 transitions. [2022-11-22 01:47:47,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-11-22 01:47:47,751 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:47:47,751 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] [2022-11-22 01:47:47,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-22 01:47:47,752 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-22 01:47:47,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:47:47,752 INFO L85 PathProgramCache]: Analyzing trace with hash -853639164, now seen corresponding path program 1 times [2022-11-22 01:47:47,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:47:47,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280731944] [2022-11-22 01:47:47,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:47:47,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:47:47,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:47:48,269 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2022-11-22 01:47:48,270 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:47:48,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280731944] [2022-11-22 01:47:48,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280731944] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:47:48,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1270202880] [2022-11-22 01:47:48,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:47:48,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:47:48,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:47:48,278 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:47:48,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:47:50,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:47:50,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 4371 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:47:50,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:47:50,226 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-11-22 01:47:50,226 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:47:50,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1270202880] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:47:50,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:47:50,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2022-11-22 01:47:50,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330354071] [2022-11-22 01:47:50,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:47:50,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:47:50,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:47:50,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:47:50,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:47:50,229 INFO L87 Difference]: Start difference. First operand 2491 states and 3491 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-22 01:47:53,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:47:53,917 INFO L93 Difference]: Finished difference Result 4907 states and 6851 transitions. [2022-11-22 01:47:53,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:47:53,917 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (16), 2 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 134 [2022-11-22 01:47:53,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:47:53,929 INFO L225 Difference]: With dead ends: 4907 [2022-11-22 01:47:53,929 INFO L226 Difference]: Without dead ends: 2531 [2022-11-22 01:47:53,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:47:53,938 INFO L413 NwaCegarLoop]: 2958 mSDtfsCounter, 3254 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3254 SdHoareTripleChecker+Valid, 3026 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:47:53,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3254 Valid, 3026 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-22 01:47:53,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2531 states. [2022-11-22 01:47:54,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2531 to 2529. [2022-11-22 01:47:54,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2529 states, 1480 states have (on average 1.2912162162162162) internal successors, (1911), 1557 states have internal predecessors, (1911), 808 states have call successors, (808), 225 states have call predecessors, (808), 222 states have return successors, (809), 794 states have call predecessors, (809), 806 states have call successors, (809) [2022-11-22 01:47:54,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2529 states to 2529 states and 3528 transitions. [2022-11-22 01:47:54,279 INFO L78 Accepts]: Start accepts. Automaton has 2529 states and 3528 transitions. Word has length 134 [2022-11-22 01:47:54,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:47:54,280 INFO L495 AbstractCegarLoop]: Abstraction has 2529 states and 3528 transitions. [2022-11-22 01:47:54,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-22 01:47:54,280 INFO L276 IsEmpty]: Start isEmpty. Operand 2529 states and 3528 transitions. [2022-11-22 01:47:54,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-22 01:47:54,283 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:47:54,283 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] [2022-11-22 01:47:54,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 01:47:54,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-22 01:47:54,500 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-22 01:47:54,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:47:54,500 INFO L85 PathProgramCache]: Analyzing trace with hash 6030974, now seen corresponding path program 1 times [2022-11-22 01:47:54,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:47:54,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775798126] [2022-11-22 01:47:54,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:47:54,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:47:54,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:47:55,097 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-22 01:47:55,098 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:47:55,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775798126] [2022-11-22 01:47:55,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775798126] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:47:55,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:47:55,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:47:55,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435861983] [2022-11-22 01:47:55,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:47:55,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:47:55,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:47:55,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:47:55,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:47:55,100 INFO L87 Difference]: Start difference. First operand 2529 states and 3528 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-11-22 01:47:58,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:48:01,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:48:02,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:48:03,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:48:03,117 INFO L93 Difference]: Finished difference Result 2529 states and 3528 transitions. [2022-11-22 01:48:03,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:48:03,117 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 108 [2022-11-22 01:48:03,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:48:03,128 INFO L225 Difference]: With dead ends: 2529 [2022-11-22 01:48:03,128 INFO L226 Difference]: Without dead ends: 2527 [2022-11-22 01:48:03,130 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 [2022-11-22 01:48:03,131 INFO L413 NwaCegarLoop]: 2925 mSDtfsCounter, 3270 mSDsluCounter, 2925 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3272 SdHoareTripleChecker+Valid, 5850 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:48:03,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3272 Valid, 5850 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 760 Invalid, 1 Unknown, 0 Unchecked, 7.6s Time] [2022-11-22 01:48:03,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2527 states. [2022-11-22 01:48:03,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2527 to 2527. [2022-11-22 01:48:03,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2527 states, 1479 states have (on average 1.290736984448952) internal successors, (1909), 1555 states have internal predecessors, (1909), 808 states have call successors, (808), 225 states have call predecessors, (808), 222 states have return successors, (809), 794 states have call predecessors, (809), 806 states have call successors, (809) [2022-11-22 01:48:03,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2527 states to 2527 states and 3526 transitions. [2022-11-22 01:48:03,585 INFO L78 Accepts]: Start accepts. Automaton has 2527 states and 3526 transitions. Word has length 108 [2022-11-22 01:48:03,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:48:03,587 INFO L495 AbstractCegarLoop]: Abstraction has 2527 states and 3526 transitions. [2022-11-22 01:48:03,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-11-22 01:48:03,588 INFO L276 IsEmpty]: Start isEmpty. Operand 2527 states and 3526 transitions. [2022-11-22 01:48:03,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 01:48:03,591 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:48:03,591 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] [2022-11-22 01:48:03,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-22 01:48:03,592 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-22 01:48:03,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:48:03,592 INFO L85 PathProgramCache]: Analyzing trace with hash -452561009, now seen corresponding path program 1 times [2022-11-22 01:48:03,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:48:03,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758696649] [2022-11-22 01:48:03,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:48:03,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:48:03,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:48:04,183 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-22 01:48:04,184 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:48:04,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758696649] [2022-11-22 01:48:04,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758696649] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:48:04,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:48:04,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:48:04,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904552465] [2022-11-22 01:48:04,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:48:04,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:48:04,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:48:04,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:48:04,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:48:04,188 INFO L87 Difference]: Start difference. First operand 2527 states and 3526 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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) [2022-11-22 01:48:06,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:48:09,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:48:09,955 INFO L93 Difference]: Finished difference Result 2527 states and 3526 transitions. [2022-11-22 01:48:09,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:48:09,955 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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 113 [2022-11-22 01:48:09,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:48:09,966 INFO L225 Difference]: With dead ends: 2527 [2022-11-22 01:48:09,966 INFO L226 Difference]: Without dead ends: 2525 [2022-11-22 01:48:09,968 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 [2022-11-22 01:48:09,968 INFO L413 NwaCegarLoop]: 2923 mSDtfsCounter, 3267 mSDsluCounter, 2923 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3269 SdHoareTripleChecker+Valid, 5846 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:48:09,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3269 Valid, 5846 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-22 01:48:09,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2525 states. [2022-11-22 01:48:10,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2525 to 2525. [2022-11-22 01:48:10,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2525 states, 1478 states have (on average 1.2902571041948578) internal successors, (1907), 1553 states have internal predecessors, (1907), 808 states have call successors, (808), 225 states have call predecessors, (808), 222 states have return successors, (809), 794 states have call predecessors, (809), 806 states have call successors, (809) [2022-11-22 01:48:10,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2525 states to 2525 states and 3524 transitions. [2022-11-22 01:48:10,297 INFO L78 Accepts]: Start accepts. Automaton has 2525 states and 3524 transitions. Word has length 113 [2022-11-22 01:48:10,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:48:10,297 INFO L495 AbstractCegarLoop]: Abstraction has 2525 states and 3524 transitions. [2022-11-22 01:48:10,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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) [2022-11-22 01:48:10,298 INFO L276 IsEmpty]: Start isEmpty. Operand 2525 states and 3524 transitions. [2022-11-22 01:48:10,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-22 01:48:10,300 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:48:10,300 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] [2022-11-22 01:48:10,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-22 01:48:10,301 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-22 01:48:10,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:48:10,301 INFO L85 PathProgramCache]: Analyzing trace with hash -2121117814, now seen corresponding path program 1 times [2022-11-22 01:48:10,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:48:10,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074409206] [2022-11-22 01:48:10,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:48:10,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:48:10,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:48:11,018 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-22 01:48:11,018 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:48:11,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074409206] [2022-11-22 01:48:11,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074409206] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:48:11,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:48:11,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:48:11,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420998265] [2022-11-22 01:48:11,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:48:11,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:48:11,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:48:11,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:48:11,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:48:11,022 INFO L87 Difference]: Start difference. First operand 2525 states and 3524 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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) [2022-11-22 01:48:16,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:48:16,376 INFO L93 Difference]: Finished difference Result 2525 states and 3524 transitions. [2022-11-22 01:48:16,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:48:16,377 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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 118 [2022-11-22 01:48:16,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:48:16,384 INFO L225 Difference]: With dead ends: 2525 [2022-11-22 01:48:16,385 INFO L226 Difference]: Without dead ends: 2523 [2022-11-22 01:48:16,387 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 [2022-11-22 01:48:16,387 INFO L413 NwaCegarLoop]: 2921 mSDtfsCounter, 3264 mSDsluCounter, 2921 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3266 SdHoareTripleChecker+Valid, 5842 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:48:16,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3266 Valid, 5842 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-22 01:48:16,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2523 states. [2022-11-22 01:48:16,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2523 to 2523. [2022-11-22 01:48:16,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2523 states, 1477 states have (on average 1.2897765741367637) internal successors, (1905), 1551 states have internal predecessors, (1905), 808 states have call successors, (808), 225 states have call predecessors, (808), 222 states have return successors, (809), 794 states have call predecessors, (809), 806 states have call successors, (809) [2022-11-22 01:48:16,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2523 states to 2523 states and 3522 transitions. [2022-11-22 01:48:16,762 INFO L78 Accepts]: Start accepts. Automaton has 2523 states and 3522 transitions. Word has length 118 [2022-11-22 01:48:16,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:48:16,762 INFO L495 AbstractCegarLoop]: Abstraction has 2523 states and 3522 transitions. [2022-11-22 01:48:16,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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) [2022-11-22 01:48:16,763 INFO L276 IsEmpty]: Start isEmpty. Operand 2523 states and 3522 transitions. [2022-11-22 01:48:16,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-22 01:48:16,766 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:48:16,766 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] [2022-11-22 01:48:16,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-22 01:48:16,767 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-22 01:48:16,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:48:16,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1084835995, now seen corresponding path program 1 times [2022-11-22 01:48:16,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:48:16,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529141473] [2022-11-22 01:48:16,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:48:16,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:48:16,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:48:17,425 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-22 01:48:17,426 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:48:17,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529141473] [2022-11-22 01:48:17,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529141473] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:48:17,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:48:17,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:48:17,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702160178] [2022-11-22 01:48:17,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:48:17,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:48:17,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:48:17,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:48:17,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:48:17,429 INFO L87 Difference]: Start difference. First operand 2523 states and 3522 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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) [2022-11-22 01:48:22,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:48:22,658 INFO L93 Difference]: Finished difference Result 2523 states and 3522 transitions. [2022-11-22 01:48:22,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:48:22,659 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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 123 [2022-11-22 01:48:22,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:48:22,669 INFO L225 Difference]: With dead ends: 2523 [2022-11-22 01:48:22,670 INFO L226 Difference]: Without dead ends: 2521 [2022-11-22 01:48:22,671 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 [2022-11-22 01:48:22,672 INFO L413 NwaCegarLoop]: 2919 mSDtfsCounter, 3261 mSDsluCounter, 2919 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3263 SdHoareTripleChecker+Valid, 5838 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:48:22,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3263 Valid, 5838 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-22 01:48:22,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2521 states. [2022-11-22 01:48:23,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2521 to 2521. [2022-11-22 01:48:23,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2521 states, 1476 states have (on average 1.2892953929539295) internal successors, (1903), 1549 states have internal predecessors, (1903), 808 states have call successors, (808), 225 states have call predecessors, (808), 222 states have return successors, (809), 794 states have call predecessors, (809), 806 states have call successors, (809) [2022-11-22 01:48:23,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2521 states to 2521 states and 3520 transitions. [2022-11-22 01:48:23,098 INFO L78 Accepts]: Start accepts. Automaton has 2521 states and 3520 transitions. Word has length 123 [2022-11-22 01:48:23,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:48:23,099 INFO L495 AbstractCegarLoop]: Abstraction has 2521 states and 3520 transitions. [2022-11-22 01:48:23,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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) [2022-11-22 01:48:23,099 INFO L276 IsEmpty]: Start isEmpty. Operand 2521 states and 3520 transitions. [2022-11-22 01:48:23,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-22 01:48:23,102 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:48:23,102 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] [2022-11-22 01:48:23,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-22 01:48:23,103 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-22 01:48:23,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:48:23,103 INFO L85 PathProgramCache]: Analyzing trace with hash -122723261, now seen corresponding path program 1 times [2022-11-22 01:48:23,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:48:23,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557904209] [2022-11-22 01:48:23,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:48:23,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:48:23,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:48:24,434 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-22 01:48:24,435 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:48:24,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557904209] [2022-11-22 01:48:24,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557904209] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:48:24,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:48:24,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:48:24,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122164698] [2022-11-22 01:48:24,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:48:24,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:48:24,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:48:24,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:48:24,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:48:24,439 INFO L87 Difference]: Start difference. First operand 2521 states and 3520 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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) [2022-11-22 01:48:27,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:48:31,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:48:32,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:48:32,378 INFO L93 Difference]: Finished difference Result 2521 states and 3520 transitions. [2022-11-22 01:48:32,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:48:32,379 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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 128 [2022-11-22 01:48:32,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:48:32,388 INFO L225 Difference]: With dead ends: 2521 [2022-11-22 01:48:32,388 INFO L226 Difference]: Without dead ends: 2519 [2022-11-22 01:48:32,390 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 [2022-11-22 01:48:32,391 INFO L413 NwaCegarLoop]: 2917 mSDtfsCounter, 3258 mSDsluCounter, 2917 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3260 SdHoareTripleChecker+Valid, 5834 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:48:32,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3260 Valid, 5834 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2022-11-22 01:48:32,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2519 states. [2022-11-22 01:48:32,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2519 to 2519. [2022-11-22 01:48:32,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2519 states, 1475 states have (on average 1.288813559322034) internal successors, (1901), 1547 states have internal predecessors, (1901), 808 states have call successors, (808), 225 states have call predecessors, (808), 222 states have return successors, (809), 794 states have call predecessors, (809), 806 states have call successors, (809) [2022-11-22 01:48:32,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2519 states to 2519 states and 3518 transitions. [2022-11-22 01:48:32,794 INFO L78 Accepts]: Start accepts. Automaton has 2519 states and 3518 transitions. Word has length 128 [2022-11-22 01:48:32,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:48:32,795 INFO L495 AbstractCegarLoop]: Abstraction has 2519 states and 3518 transitions. [2022-11-22 01:48:32,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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) [2022-11-22 01:48:32,795 INFO L276 IsEmpty]: Start isEmpty. Operand 2519 states and 3518 transitions. [2022-11-22 01:48:32,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-22 01:48:32,798 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:48:32,799 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] [2022-11-22 01:48:32,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-22 01:48:32,799 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-22 01:48:32,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:48:32,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1827270080, now seen corresponding path program 1 times [2022-11-22 01:48:32,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:48:32,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428481761] [2022-11-22 01:48:32,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:48:32,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:48:32,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:48:33,392 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-22 01:48:33,392 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:48:33,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428481761] [2022-11-22 01:48:33,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428481761] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:48:33,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:48:33,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:48:33,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826366702] [2022-11-22 01:48:33,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:48:33,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:48:33,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:48:33,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:48:33,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:48:33,396 INFO L87 Difference]: Start difference. First operand 2519 states and 3518 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 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) [2022-11-22 01:48:38,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:48:38,643 INFO L93 Difference]: Finished difference Result 2519 states and 3518 transitions. [2022-11-22 01:48:38,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:48:38,646 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 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 133 [2022-11-22 01:48:38,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:48:38,653 INFO L225 Difference]: With dead ends: 2519 [2022-11-22 01:48:38,653 INFO L226 Difference]: Without dead ends: 2517 [2022-11-22 01:48:38,654 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 [2022-11-22 01:48:38,655 INFO L413 NwaCegarLoop]: 2915 mSDtfsCounter, 3255 mSDsluCounter, 2915 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3257 SdHoareTripleChecker+Valid, 5830 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:48:38,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3257 Valid, 5830 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-22 01:48:38,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2517 states. [2022-11-22 01:48:39,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2517 to 2517. [2022-11-22 01:48:39,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2517 states, 1474 states have (on average 1.2883310719131615) internal successors, (1899), 1545 states have internal predecessors, (1899), 808 states have call successors, (808), 225 states have call predecessors, (808), 222 states have return successors, (809), 794 states have call predecessors, (809), 806 states have call successors, (809) [2022-11-22 01:48:39,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2517 states to 2517 states and 3516 transitions. [2022-11-22 01:48:39,011 INFO L78 Accepts]: Start accepts. Automaton has 2517 states and 3516 transitions. Word has length 133 [2022-11-22 01:48:39,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:48:39,011 INFO L495 AbstractCegarLoop]: Abstraction has 2517 states and 3516 transitions. [2022-11-22 01:48:39,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 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) [2022-11-22 01:48:39,012 INFO L276 IsEmpty]: Start isEmpty. Operand 2517 states and 3516 transitions. [2022-11-22 01:48:39,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-22 01:48:39,014 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:48:39,015 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] [2022-11-22 01:48:39,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-22 01:48:39,015 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-22 01:48:39,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:48:39,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1720117056, now seen corresponding path program 1 times [2022-11-22 01:48:39,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:48:39,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627965015] [2022-11-22 01:48:39,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:48:39,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:48:39,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:48:39,589 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-22 01:48:39,589 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:48:39,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627965015] [2022-11-22 01:48:39,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627965015] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:48:39,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:48:39,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:48:39,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536156994] [2022-11-22 01:48:39,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:48:39,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:48:39,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:48:39,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:48:39,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:48:39,591 INFO L87 Difference]: Start difference. First operand 2517 states and 3516 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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) [2022-11-22 01:48:44,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:48:45,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:48:45,754 INFO L93 Difference]: Finished difference Result 2517 states and 3516 transitions. [2022-11-22 01:48:45,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:48:45,754 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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 138 [2022-11-22 01:48:45,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:48:45,762 INFO L225 Difference]: With dead ends: 2517 [2022-11-22 01:48:45,762 INFO L226 Difference]: Without dead ends: 2515 [2022-11-22 01:48:45,763 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 [2022-11-22 01:48:45,764 INFO L413 NwaCegarLoop]: 2913 mSDtfsCounter, 3252 mSDsluCounter, 2913 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3254 SdHoareTripleChecker+Valid, 5826 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:48:45,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3254 Valid, 5826 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-11-22 01:48:45,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2515 states. [2022-11-22 01:48:46,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2515 to 2515. [2022-11-22 01:48:46,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2515 states, 1473 states have (on average 1.287847929395791) internal successors, (1897), 1543 states have internal predecessors, (1897), 808 states have call successors, (808), 225 states have call predecessors, (808), 222 states have return successors, (809), 794 states have call predecessors, (809), 806 states have call successors, (809) [2022-11-22 01:48:46,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2515 states to 2515 states and 3514 transitions. [2022-11-22 01:48:46,220 INFO L78 Accepts]: Start accepts. Automaton has 2515 states and 3514 transitions. Word has length 138 [2022-11-22 01:48:46,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:48:46,221 INFO L495 AbstractCegarLoop]: Abstraction has 2515 states and 3514 transitions. [2022-11-22 01:48:46,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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) [2022-11-22 01:48:46,221 INFO L276 IsEmpty]: Start isEmpty. Operand 2515 states and 3514 transitions. [2022-11-22 01:48:46,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-11-22 01:48:46,223 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:48:46,223 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-11-22 01:48:46,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-22 01:48:46,224 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-22 01:48:46,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:48:46,224 INFO L85 PathProgramCache]: Analyzing trace with hash 255548023, now seen corresponding path program 1 times [2022-11-22 01:48:46,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:48:46,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487758325] [2022-11-22 01:48:46,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:48:46,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:48:46,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:48:47,375 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2022-11-22 01:48:47,375 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:48:47,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487758325] [2022-11-22 01:48:47,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487758325] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:48:47,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:48:47,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:48:47,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404491631] [2022-11-22 01:48:47,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:48:47,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:48:47,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:48:47,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:48:47,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:48:47,378 INFO L87 Difference]: Start difference. First operand 2515 states and 3514 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-22 01:48:54,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:48:54,262 INFO L93 Difference]: Finished difference Result 2763 states and 3818 transitions. [2022-11-22 01:48:54,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:48:54,263 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 176 [2022-11-22 01:48:54,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:48:54,271 INFO L225 Difference]: With dead ends: 2763 [2022-11-22 01:48:54,272 INFO L226 Difference]: Without dead ends: 2761 [2022-11-22 01:48:54,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:48:54,274 INFO L413 NwaCegarLoop]: 3134 mSDtfsCounter, 2901 mSDsluCounter, 6845 mSDsCounter, 0 mSdLazyCounter, 1272 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2903 SdHoareTripleChecker+Valid, 9979 SdHoareTripleChecker+Invalid, 1275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:48:54,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2903 Valid, 9979 Invalid, 1275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1272 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-11-22 01:48:54,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2761 states. [2022-11-22 01:48:54,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2761 to 2748. [2022-11-22 01:48:54,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2748 states, 1606 states have (on average 1.2808219178082192) internal successors, (2057), 1682 states have internal predecessors, (2057), 868 states have call successors, (868), 263 states have call predecessors, (868), 262 states have return successors, (876), 855 states have call predecessors, (876), 866 states have call successors, (876) [2022-11-22 01:48:54,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2748 states to 2748 states and 3801 transitions. [2022-11-22 01:48:54,791 INFO L78 Accepts]: Start accepts. Automaton has 2748 states and 3801 transitions. Word has length 176 [2022-11-22 01:48:54,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:48:54,791 INFO L495 AbstractCegarLoop]: Abstraction has 2748 states and 3801 transitions. [2022-11-22 01:48:54,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-22 01:48:54,792 INFO L276 IsEmpty]: Start isEmpty. Operand 2748 states and 3801 transitions. [2022-11-22 01:48:54,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-22 01:48:54,795 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:48:54,795 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] [2022-11-22 01:48:54,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-22 01:48:54,795 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-22 01:48:54,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:48:54,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1585520641, now seen corresponding path program 1 times [2022-11-22 01:48:54,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:48:54,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345995023] [2022-11-22 01:48:54,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:48:54,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:48:54,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:48:55,406 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-22 01:48:55,407 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:48:55,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345995023] [2022-11-22 01:48:55,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345995023] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:48:55,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:48:55,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:48:55,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063643493] [2022-11-22 01:48:55,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:48:55,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:48:55,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:48:55,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:48:55,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:48:55,410 INFO L87 Difference]: Start difference. First operand 2748 states and 3801 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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) [2022-11-22 01:49:01,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:49:01,889 INFO L93 Difference]: Finished difference Result 5032 states and 6941 transitions. [2022-11-22 01:49:01,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:49:01,890 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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 143 [2022-11-22 01:49:01,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:49:01,909 INFO L225 Difference]: With dead ends: 5032 [2022-11-22 01:49:01,909 INFO L226 Difference]: Without dead ends: 5030 [2022-11-22 01:49:01,913 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 [2022-11-22 01:49:01,913 INFO L413 NwaCegarLoop]: 3508 mSDtfsCounter, 2891 mSDsluCounter, 6199 mSDsCounter, 0 mSdLazyCounter, 1105 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2893 SdHoareTripleChecker+Valid, 9707 SdHoareTripleChecker+Invalid, 1106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:49:01,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2893 Valid, 9707 Invalid, 1106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1105 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-11-22 01:49:01,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5030 states. [2022-11-22 01:49:02,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5030 to 5001. [2022-11-22 01:49:02,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5001 states, 2928 states have (on average 1.280396174863388) internal successors, (3749), 3053 states have internal predecessors, (3749), 1561 states have call successors, (1561), 501 states have call predecessors, (1561), 500 states have return successors, (1607), 1540 states have call predecessors, (1607), 1559 states have call successors, (1607) [2022-11-22 01:49:02,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5001 states to 5001 states and 6917 transitions. [2022-11-22 01:49:02,785 INFO L78 Accepts]: Start accepts. Automaton has 5001 states and 6917 transitions. Word has length 143 [2022-11-22 01:49:02,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:49:02,785 INFO L495 AbstractCegarLoop]: Abstraction has 5001 states and 6917 transitions. [2022-11-22 01:49:02,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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) [2022-11-22 01:49:02,786 INFO L276 IsEmpty]: Start isEmpty. Operand 5001 states and 6917 transitions. [2022-11-22 01:49:02,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-22 01:49:02,789 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:49:02,789 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] [2022-11-22 01:49:02,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-22 01:49:02,790 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-22 01:49:02,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:49:02,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1435656703, now seen corresponding path program 1 times [2022-11-22 01:49:02,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:49:02,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406693166] [2022-11-22 01:49:02,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:49:02,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:49:02,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:49:03,302 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-22 01:49:03,302 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:49:03,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406693166] [2022-11-22 01:49:03,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406693166] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:49:03,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:49:03,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:49:03,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686358355] [2022-11-22 01:49:03,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:49:03,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:49:03,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:49:03,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:49:03,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:49:03,305 INFO L87 Difference]: Start difference. First operand 5001 states and 6917 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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) [2022-11-22 01:49:06,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:49:10,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:49:11,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:49:11,499 INFO L93 Difference]: Finished difference Result 5001 states and 6917 transitions. [2022-11-22 01:49:11,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:49:11,505 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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 148 [2022-11-22 01:49:11,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:49:11,517 INFO L225 Difference]: With dead ends: 5001 [2022-11-22 01:49:11,518 INFO L226 Difference]: Without dead ends: 4999 [2022-11-22 01:49:11,520 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 [2022-11-22 01:49:11,520 INFO L413 NwaCegarLoop]: 2911 mSDtfsCounter, 3248 mSDsluCounter, 2911 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3250 SdHoareTripleChecker+Valid, 5822 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:49:11,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3250 Valid, 5822 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 760 Invalid, 1 Unknown, 0 Unchecked, 7.3s Time] [2022-11-22 01:49:11,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4999 states. [2022-11-22 01:49:12,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4999 to 4999. [2022-11-22 01:49:12,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4999 states, 2927 states have (on average 1.2801503245644004) internal successors, (3747), 3051 states have internal predecessors, (3747), 1561 states have call successors, (1561), 501 states have call predecessors, (1561), 500 states have return successors, (1607), 1540 states have call predecessors, (1607), 1559 states have call successors, (1607) [2022-11-22 01:49:12,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4999 states to 4999 states and 6915 transitions. [2022-11-22 01:49:12,233 INFO L78 Accepts]: Start accepts. Automaton has 4999 states and 6915 transitions. Word has length 148 [2022-11-22 01:49:12,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:49:12,233 INFO L495 AbstractCegarLoop]: Abstraction has 4999 states and 6915 transitions. [2022-11-22 01:49:12,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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) [2022-11-22 01:49:12,234 INFO L276 IsEmpty]: Start isEmpty. Operand 4999 states and 6915 transitions. [2022-11-22 01:49:12,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-11-22 01:49:12,236 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:49:12,236 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, 1, 1, 1, 1, 1] [2022-11-22 01:49:12,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-22 01:49:12,236 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-22 01:49:12,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:49:12,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1075690538, now seen corresponding path program 1 times [2022-11-22 01:49:12,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:49:12,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500596669] [2022-11-22 01:49:12,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:49:12,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:49:12,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:49:12,788 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-22 01:49:12,788 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:49:12,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500596669] [2022-11-22 01:49:12,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500596669] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:49:12,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:49:12,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:49:12,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684355788] [2022-11-22 01:49:12,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:49:12,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:49:12,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:49:12,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:49:12,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:49:12,791 INFO L87 Difference]: Start difference. First operand 4999 states and 6915 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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) [2022-11-22 01:49:14,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:49:16,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:49:19,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:49:22,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:49:22,315 INFO L93 Difference]: Finished difference Result 7455 states and 10349 transitions. [2022-11-22 01:49:22,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:49:22,316 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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 153 [2022-11-22 01:49:22,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:49:22,344 INFO L225 Difference]: With dead ends: 7455 [2022-11-22 01:49:22,345 INFO L226 Difference]: Without dead ends: 7323 [2022-11-22 01:49:22,350 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 [2022-11-22 01:49:22,351 INFO L413 NwaCegarLoop]: 3684 mSDtfsCounter, 3147 mSDsluCounter, 6382 mSDsCounter, 0 mSdLazyCounter, 1157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3147 SdHoareTripleChecker+Valid, 10066 SdHoareTripleChecker+Invalid, 1157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:49:22,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3147 Valid, 10066 Invalid, 1157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1157 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2022-11-22 01:49:22,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7323 states. [2022-11-22 01:49:23,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7323 to 7300. [2022-11-22 01:49:23,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7300 states, 4283 states have (on average 1.283679663787065) internal successors, (5498), 4463 states have internal predecessors, (5498), 2281 states have call successors, (2281), 726 states have call predecessors, (2281), 725 states have return successors, (2397), 2251 states have call predecessors, (2397), 2277 states have call successors, (2397) [2022-11-22 01:49:23,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7300 states to 7300 states and 10176 transitions. [2022-11-22 01:49:23,589 INFO L78 Accepts]: Start accepts. Automaton has 7300 states and 10176 transitions. Word has length 153 [2022-11-22 01:49:23,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:49:23,589 INFO L495 AbstractCegarLoop]: Abstraction has 7300 states and 10176 transitions. [2022-11-22 01:49:23,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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) [2022-11-22 01:49:23,589 INFO L276 IsEmpty]: Start isEmpty. Operand 7300 states and 10176 transitions. [2022-11-22 01:49:23,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-11-22 01:49:23,591 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:49:23,591 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-11-22 01:49:23,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-22 01:49:23,592 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-22 01:49:23,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:49:23,592 INFO L85 PathProgramCache]: Analyzing trace with hash -857802485, now seen corresponding path program 1 times [2022-11-22 01:49:23,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:49:23,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418408845] [2022-11-22 01:49:23,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:49:23,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:49:23,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:49:24,449 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2022-11-22 01:49:24,450 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:49:24,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418408845] [2022-11-22 01:49:24,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418408845] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:49:24,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:49:24,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:49:24,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415514476] [2022-11-22 01:49:24,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:49:24,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:49:24,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:49:24,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:49:24,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:49:24,452 INFO L87 Difference]: Start difference. First operand 7300 states and 10176 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (34), 3 states have call predecessors, (34), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-22 01:49:31,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:49:34,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:49:34,556 INFO L93 Difference]: Finished difference Result 7310 states and 10184 transitions. [2022-11-22 01:49:34,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:49:34,557 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (34), 3 states have call predecessors, (34), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 198 [2022-11-22 01:49:34,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:49:34,586 INFO L225 Difference]: With dead ends: 7310 [2022-11-22 01:49:34,586 INFO L226 Difference]: Without dead ends: 7308 [2022-11-22 01:49:34,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:49:34,592 INFO L413 NwaCegarLoop]: 3009 mSDtfsCounter, 630 mSDsluCounter, 8606 mSDsCounter, 0 mSdLazyCounter, 1558 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 631 SdHoareTripleChecker+Valid, 11615 SdHoareTripleChecker+Invalid, 1559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:49:34,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [631 Valid, 11615 Invalid, 1559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1558 Invalid, 0 Unknown, 0 Unchecked, 8.8s Time] [2022-11-22 01:49:34,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7308 states. [2022-11-22 01:49:35,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7308 to 7300. [2022-11-22 01:49:35,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7300 states, 4283 states have (on average 1.282278776558487) internal successors, (5492), 4463 states have internal predecessors, (5492), 2281 states have call successors, (2281), 726 states have call predecessors, (2281), 725 states have return successors, (2397), 2251 states have call predecessors, (2397), 2277 states have call successors, (2397) [2022-11-22 01:49:35,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7300 states to 7300 states and 10170 transitions. [2022-11-22 01:49:35,648 INFO L78 Accepts]: Start accepts. Automaton has 7300 states and 10170 transitions. Word has length 198 [2022-11-22 01:49:35,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:49:35,648 INFO L495 AbstractCegarLoop]: Abstraction has 7300 states and 10170 transitions. [2022-11-22 01:49:35,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (34), 3 states have call predecessors, (34), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-22 01:49:35,649 INFO L276 IsEmpty]: Start isEmpty. Operand 7300 states and 10170 transitions. [2022-11-22 01:49:35,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-11-22 01:49:35,652 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:49:35,652 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-11-22 01:49:35,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-22 01:49:35,653 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-22 01:49:35,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:49:35,653 INFO L85 PathProgramCache]: Analyzing trace with hash -87647650, now seen corresponding path program 1 times [2022-11-22 01:49:35,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:49:35,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079164138] [2022-11-22 01:49:35,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:49:35,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:49:35,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:49:37,167 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 553 trivial. 0 not checked. [2022-11-22 01:49:37,168 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:49:37,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079164138] [2022-11-22 01:49:37,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079164138] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:49:37,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:49:37,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:49:37,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697873001] [2022-11-22 01:49:37,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:49:37,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:49:37,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:49:37,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:49:37,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:49:37,171 INFO L87 Difference]: Start difference. First operand 7300 states and 10170 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (29), 1 states have call predecessors, (29), 2 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-22 01:49:42,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:49:47,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:49:50,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:49:50,229 INFO L93 Difference]: Finished difference Result 14294 states and 19920 transitions. [2022-11-22 01:49:50,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:49:50,229 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (29), 1 states have call predecessors, (29), 2 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) Word has length 201 [2022-11-22 01:49:50,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:49:50,264 INFO L225 Difference]: With dead ends: 14294 [2022-11-22 01:49:50,265 INFO L226 Difference]: Without dead ends: 7764 [2022-11-22 01:49:50,291 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 [2022-11-22 01:49:50,291 INFO L413 NwaCegarLoop]: 3009 mSDtfsCounter, 113 mSDsluCounter, 8943 mSDsCounter, 0 mSdLazyCounter, 1545 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 11952 SdHoareTripleChecker+Invalid, 1546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1545 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:49:50,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 11952 Invalid, 1546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1545 Invalid, 1 Unknown, 0 Unchecked, 11.6s Time] [2022-11-22 01:49:50,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7764 states. [2022-11-22 01:49:51,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7764 to 7312. [2022-11-22 01:49:51,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7312 states, 4292 states have (on average 1.2816868592730661) internal successors, (5501), 4472 states have internal predecessors, (5501), 2281 states have call successors, (2281), 726 states have call predecessors, (2281), 728 states have return successors, (2409), 2254 states have call predecessors, (2409), 2277 states have call successors, (2409) [2022-11-22 01:49:51,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7312 states to 7312 states and 10191 transitions. [2022-11-22 01:49:51,386 INFO L78 Accepts]: Start accepts. Automaton has 7312 states and 10191 transitions. Word has length 201 [2022-11-22 01:49:51,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:49:51,387 INFO L495 AbstractCegarLoop]: Abstraction has 7312 states and 10191 transitions. [2022-11-22 01:49:51,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (29), 1 states have call predecessors, (29), 2 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-22 01:49:51,387 INFO L276 IsEmpty]: Start isEmpty. Operand 7312 states and 10191 transitions. [2022-11-22 01:49:51,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-11-22 01:49:51,391 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:49:51,391 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-11-22 01:49:51,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-22 01:49:51,392 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-22 01:49:51,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:49:51,392 INFO L85 PathProgramCache]: Analyzing trace with hash 2039564402, now seen corresponding path program 1 times [2022-11-22 01:49:51,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:49:51,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903193886] [2022-11-22 01:49:51,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:49:51,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:49:51,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:49:52,396 INFO L134 CoverageAnalysis]: Checked inductivity of 664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 664 trivial. 0 not checked. [2022-11-22 01:49:52,397 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:49:52,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903193886] [2022-11-22 01:49:52,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903193886] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:49:52,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:49:52,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 01:49:52,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235557605] [2022-11-22 01:49:52,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:49:52,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:49:52,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:49:52,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:49:52,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:49:52,399 INFO L87 Difference]: Start difference. First operand 7312 states and 10191 transitions. Second operand has 6 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (32), 1 states have call predecessors, (32), 2 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-22 01:50:01,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:50:02,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:50:07,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:50:07,680 INFO L93 Difference]: Finished difference Result 14369 states and 20024 transitions. [2022-11-22 01:50:07,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:50:07,681 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (32), 1 states have call predecessors, (32), 2 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) Word has length 214 [2022-11-22 01:50:07,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:50:07,713 INFO L225 Difference]: With dead ends: 14369 [2022-11-22 01:50:07,713 INFO L226 Difference]: Without dead ends: 7827 [2022-11-22 01:50:07,736 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 [2022-11-22 01:50:07,737 INFO L413 NwaCegarLoop]: 3113 mSDtfsCounter, 3421 mSDsluCounter, 7807 mSDsCounter, 0 mSdLazyCounter, 3472 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3423 SdHoareTripleChecker+Valid, 10920 SdHoareTripleChecker+Invalid, 3575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 3472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:50:07,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3423 Valid, 10920 Invalid, 3575 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [103 Valid, 3472 Invalid, 0 Unknown, 0 Unchecked, 13.5s Time] [2022-11-22 01:50:07,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7827 states. [2022-11-22 01:50:08,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7827 to 7304. [2022-11-22 01:50:08,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7304 states, 4285 states have (on average 1.2807467911318553) internal successors, (5488), 4464 states have internal predecessors, (5488), 2281 states have call successors, (2281), 726 states have call predecessors, (2281), 728 states have return successors, (2409), 2254 states have call predecessors, (2409), 2277 states have call successors, (2409) [2022-11-22 01:50:08,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7304 states to 7304 states and 10178 transitions. [2022-11-22 01:50:08,840 INFO L78 Accepts]: Start accepts. Automaton has 7304 states and 10178 transitions. Word has length 214 [2022-11-22 01:50:08,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:50:08,840 INFO L495 AbstractCegarLoop]: Abstraction has 7304 states and 10178 transitions. [2022-11-22 01:50:08,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (32), 1 states have call predecessors, (32), 2 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-22 01:50:08,841 INFO L276 IsEmpty]: Start isEmpty. Operand 7304 states and 10178 transitions. [2022-11-22 01:50:08,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-11-22 01:50:08,844 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:50:08,844 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-11-22 01:50:08,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-22 01:50:08,845 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-22 01:50:08,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:50:08,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1197638146, now seen corresponding path program 1 times [2022-11-22 01:50:08,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:50:08,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788993312] [2022-11-22 01:50:08,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:50:08,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:50:08,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:50:09,540 INFO L134 CoverageAnalysis]: Checked inductivity of 664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 664 trivial. 0 not checked. [2022-11-22 01:50:09,541 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:50:09,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788993312] [2022-11-22 01:50:09,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788993312] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:50:09,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:50:09,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:50:09,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216537340] [2022-11-22 01:50:09,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:50:09,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:50:09,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:50:09,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:50:09,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:50:09,543 INFO L87 Difference]: Start difference. First operand 7304 states and 10178 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-22 01:50:11,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:50:15,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:50:17,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:50:17,536 INFO L93 Difference]: Finished difference Result 7783 states and 10953 transitions. [2022-11-22 01:50:17,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:50:17,537 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 215 [2022-11-22 01:50:17,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:50:17,568 INFO L225 Difference]: With dead ends: 7783 [2022-11-22 01:50:17,568 INFO L226 Difference]: Without dead ends: 7781 [2022-11-22 01:50:17,573 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 [2022-11-22 01:50:17,574 INFO L413 NwaCegarLoop]: 3054 mSDtfsCounter, 3436 mSDsluCounter, 2936 mSDsCounter, 0 mSdLazyCounter, 877 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3436 SdHoareTripleChecker+Valid, 5990 SdHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:50:17,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3436 Valid, 5990 Invalid, 982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 877 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2022-11-22 01:50:17,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7781 states. [2022-11-22 01:50:18,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7781 to 7302. [2022-11-22 01:50:18,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7302 states, 4284 states have (on average 1.280112044817927) internal successors, (5484), 4462 states have internal predecessors, (5484), 2281 states have call successors, (2281), 726 states have call predecessors, (2281), 728 states have return successors, (2409), 2254 states have call predecessors, (2409), 2277 states have call successors, (2409) [2022-11-22 01:50:18,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7302 states to 7302 states and 10174 transitions. [2022-11-22 01:50:18,770 INFO L78 Accepts]: Start accepts. Automaton has 7302 states and 10174 transitions. Word has length 215 [2022-11-22 01:50:18,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:50:18,770 INFO L495 AbstractCegarLoop]: Abstraction has 7302 states and 10174 transitions. [2022-11-22 01:50:18,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-22 01:50:18,771 INFO L276 IsEmpty]: Start isEmpty. Operand 7302 states and 10174 transitions. [2022-11-22 01:50:18,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-11-22 01:50:18,774 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:50:18,775 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-11-22 01:50:18,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-22 01:50:18,775 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-22 01:50:18,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:50:18,776 INFO L85 PathProgramCache]: Analyzing trace with hash 139551078, now seen corresponding path program 1 times [2022-11-22 01:50:18,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:50:18,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267996691] [2022-11-22 01:50:18,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:50:18,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:50:18,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:50:19,700 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 690 trivial. 0 not checked. [2022-11-22 01:50:19,700 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:50:19,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267996691] [2022-11-22 01:50:19,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267996691] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:50:19,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:50:19,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:50:19,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427985820] [2022-11-22 01:50:19,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:50:19,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:50:19,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:50:19,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:50:19,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:50:19,703 INFO L87 Difference]: Start difference. First operand 7302 states and 10174 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-22 01:50:22,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:50:26,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:50:27,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:50:30,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:50:30,042 INFO L93 Difference]: Finished difference Result 7335 states and 10198 transitions. [2022-11-22 01:50:30,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:50:30,047 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 224 [2022-11-22 01:50:30,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:50:30,074 INFO L225 Difference]: With dead ends: 7335 [2022-11-22 01:50:30,074 INFO L226 Difference]: Without dead ends: 7333 [2022-11-22 01:50:30,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:50:30,079 INFO L413 NwaCegarLoop]: 2908 mSDtfsCounter, 3198 mSDsluCounter, 5835 mSDsCounter, 0 mSdLazyCounter, 1155 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3200 SdHoareTripleChecker+Valid, 8743 SdHoareTripleChecker+Invalid, 1157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:50:30,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3200 Valid, 8743 Invalid, 1157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1155 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time] [2022-11-22 01:50:30,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7333 states. [2022-11-22 01:50:31,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7333 to 7331. [2022-11-22 01:50:31,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7331 states, 4303 states have (on average 1.2788752033465025) internal successors, (5503), 4481 states have internal predecessors, (5503), 2281 states have call successors, (2281), 736 states have call predecessors, (2281), 738 states have return successors, (2409), 2254 states have call predecessors, (2409), 2277 states have call successors, (2409) [2022-11-22 01:50:31,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7331 states to 7331 states and 10193 transitions. [2022-11-22 01:50:31,349 INFO L78 Accepts]: Start accepts. Automaton has 7331 states and 10193 transitions. Word has length 224 [2022-11-22 01:50:31,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:50:31,350 INFO L495 AbstractCegarLoop]: Abstraction has 7331 states and 10193 transitions. [2022-11-22 01:50:31,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-22 01:50:31,351 INFO L276 IsEmpty]: Start isEmpty. Operand 7331 states and 10193 transitions. [2022-11-22 01:50:31,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-11-22 01:50:31,354 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:50:31,355 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:50:31,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-22 01:50:31,355 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-22 01:50:31,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:50:31,356 INFO L85 PathProgramCache]: Analyzing trace with hash 511612855, now seen corresponding path program 1 times [2022-11-22 01:50:31,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:50:31,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594186879] [2022-11-22 01:50:31,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:50:31,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:50:31,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:50:32,910 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 391 trivial. 0 not checked. [2022-11-22 01:50:32,910 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:50:32,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594186879] [2022-11-22 01:50:32,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594186879] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:50:32,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:50:32,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:50:32,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159487974] [2022-11-22 01:50:32,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:50:32,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:50:32,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:50:32,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:50:32,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:50:32,913 INFO L87 Difference]: Start difference. First operand 7331 states and 10193 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-22 01:50:37,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:50:42,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:50:42,644 INFO L93 Difference]: Finished difference Result 8514 states and 11548 transitions. [2022-11-22 01:50:42,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:50:42,645 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 242 [2022-11-22 01:50:42,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:50:42,665 INFO L225 Difference]: With dead ends: 8514 [2022-11-22 01:50:42,665 INFO L226 Difference]: Without dead ends: 8512 [2022-11-22 01:50:42,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:50:42,669 INFO L413 NwaCegarLoop]: 3069 mSDtfsCounter, 3162 mSDsluCounter, 6392 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3165 SdHoareTripleChecker+Valid, 9461 SdHoareTripleChecker+Invalid, 1246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:50:42,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3165 Valid, 9461 Invalid, 1246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1243 Invalid, 1 Unknown, 0 Unchecked, 8.1s Time] [2022-11-22 01:50:42,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8512 states. [2022-11-22 01:50:43,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8512 to 8504. [2022-11-22 01:50:43,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8504 states, 4933 states have (on average 1.2621123048854652) internal successors, (6226), 5135 states have internal predecessors, (6226), 2578 states have call successors, (2578), 982 states have call predecessors, (2578), 984 states have return successors, (2736), 2539 states have call predecessors, (2736), 2574 states have call successors, (2736) [2022-11-22 01:50:43,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8504 states to 8504 states and 11540 transitions. [2022-11-22 01:50:43,838 INFO L78 Accepts]: Start accepts. Automaton has 8504 states and 11540 transitions. Word has length 242 [2022-11-22 01:50:43,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:50:43,838 INFO L495 AbstractCegarLoop]: Abstraction has 8504 states and 11540 transitions. [2022-11-22 01:50:43,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-22 01:50:43,838 INFO L276 IsEmpty]: Start isEmpty. Operand 8504 states and 11540 transitions. [2022-11-22 01:50:43,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-11-22 01:50:43,841 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:50:43,841 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-11-22 01:50:43,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-22 01:50:43,841 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-22 01:50:43,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:50:43,842 INFO L85 PathProgramCache]: Analyzing trace with hash -417762948, now seen corresponding path program 1 times [2022-11-22 01:50:43,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:50:43,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766699765] [2022-11-22 01:50:43,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:50:43,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:50:43,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:50:44,925 INFO L134 CoverageAnalysis]: Checked inductivity of 710 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 710 trivial. 0 not checked. [2022-11-22 01:50:44,925 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:50:44,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766699765] [2022-11-22 01:50:44,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766699765] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:50:44,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:50:44,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:50:44,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963419636] [2022-11-22 01:50:44,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:50:44,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:50:44,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:50:44,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:50:44,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:50:44,928 INFO L87 Difference]: Start difference. First operand 8504 states and 11540 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-22 01:50:56,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:50:56,387 INFO L93 Difference]: Finished difference Result 14374 states and 19253 transitions. [2022-11-22 01:50:56,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:50:56,388 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 233 [2022-11-22 01:50:56,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:50:56,426 INFO L225 Difference]: With dead ends: 14374 [2022-11-22 01:50:56,426 INFO L226 Difference]: Without dead ends: 14372 [2022-11-22 01:50:56,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:50:56,432 INFO L413 NwaCegarLoop]: 3614 mSDtfsCounter, 2842 mSDsluCounter, 9214 mSDsCounter, 0 mSdLazyCounter, 1490 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2845 SdHoareTripleChecker+Valid, 12828 SdHoareTripleChecker+Invalid, 1493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:50:56,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2845 Valid, 12828 Invalid, 1493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1490 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time] [2022-11-22 01:50:56,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14372 states. [2022-11-22 01:50:58,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14372 to 14354. [2022-11-22 01:50:58,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14354 states, 8271 states have (on average 1.2523274090194656) internal successors, (10358), 8624 states have internal predecessors, (10358), 4300 states have call successors, (4300), 1775 states have call predecessors, (4300), 1774 states have return successors, (4574), 4230 states have call predecessors, (4574), 4296 states have call successors, (4574) [2022-11-22 01:50:58,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14354 states to 14354 states and 19232 transitions. [2022-11-22 01:50:58,519 INFO L78 Accepts]: Start accepts. Automaton has 14354 states and 19232 transitions. Word has length 233 [2022-11-22 01:50:58,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:50:58,520 INFO L495 AbstractCegarLoop]: Abstraction has 14354 states and 19232 transitions. [2022-11-22 01:50:58,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-22 01:50:58,520 INFO L276 IsEmpty]: Start isEmpty. Operand 14354 states and 19232 transitions. [2022-11-22 01:50:58,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-11-22 01:50:58,523 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:50:58,523 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:50:58,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-22 01:50:58,524 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-22 01:50:58,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:50:58,524 INFO L85 PathProgramCache]: Analyzing trace with hash 306818675, now seen corresponding path program 1 times [2022-11-22 01:50:58,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:50:58,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852174420] [2022-11-22 01:50:58,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:50:58,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:50:59,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:51:00,162 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 391 trivial. 0 not checked. [2022-11-22 01:51:00,162 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:51:00,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852174420] [2022-11-22 01:51:00,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852174420] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:51:00,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:51:00,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:51:00,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768863784] [2022-11-22 01:51:00,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:51:00,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:51:00,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:51:00,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:51:00,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:51:00,165 INFO L87 Difference]: Start difference. First operand 14354 states and 19232 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (43), 3 states have call predecessors, (43), 2 states have return successors, (38), 2 states have call predecessors, (38), 1 states have call successors, (38) [2022-11-22 01:51:03,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:51:12,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:51:12,942 INFO L93 Difference]: Finished difference Result 14362 states and 19236 transitions. [2022-11-22 01:51:12,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:51:12,942 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (43), 3 states have call predecessors, (43), 2 states have return successors, (38), 2 states have call predecessors, (38), 1 states have call successors, (38) Word has length 254 [2022-11-22 01:51:12,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:51:12,977 INFO L225 Difference]: With dead ends: 14362 [2022-11-22 01:51:12,977 INFO L226 Difference]: Without dead ends: 14360 [2022-11-22 01:51:12,981 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 [2022-11-22 01:51:12,982 INFO L413 NwaCegarLoop]: 2997 mSDtfsCounter, 293 mSDsluCounter, 8845 mSDsCounter, 0 mSdLazyCounter, 1589 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 11842 SdHoareTripleChecker+Invalid, 1589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:51:12,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 11842 Invalid, 1589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1589 Invalid, 0 Unknown, 0 Unchecked, 10.2s Time] [2022-11-22 01:51:12,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14360 states. [2022-11-22 01:51:14,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14360 to 14354. [2022-11-22 01:51:14,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14354 states, 8271 states have (on average 1.2516019828315803) internal successors, (10352), 8624 states have internal predecessors, (10352), 4300 states have call successors, (4300), 1775 states have call predecessors, (4300), 1774 states have return successors, (4574), 4230 states have call predecessors, (4574), 4296 states have call successors, (4574) [2022-11-22 01:51:14,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14354 states to 14354 states and 19226 transitions. [2022-11-22 01:51:14,994 INFO L78 Accepts]: Start accepts. Automaton has 14354 states and 19226 transitions. Word has length 254 [2022-11-22 01:51:14,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:51:14,995 INFO L495 AbstractCegarLoop]: Abstraction has 14354 states and 19226 transitions. [2022-11-22 01:51:14,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (43), 3 states have call predecessors, (43), 2 states have return successors, (38), 2 states have call predecessors, (38), 1 states have call successors, (38) [2022-11-22 01:51:14,995 INFO L276 IsEmpty]: Start isEmpty. Operand 14354 states and 19226 transitions. [2022-11-22 01:51:15,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-11-22 01:51:15,067 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:51:15,067 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-11-22 01:51:15,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-22 01:51:15,068 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-22 01:51:15,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:51:15,068 INFO L85 PathProgramCache]: Analyzing trace with hash 423280225, now seen corresponding path program 1 times [2022-11-22 01:51:15,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:51:15,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681565604] [2022-11-22 01:51:15,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:51:15,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:51:15,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:51:15,868 INFO L134 CoverageAnalysis]: Checked inductivity of 744 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 744 trivial. 0 not checked. [2022-11-22 01:51:15,869 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:51:15,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681565604] [2022-11-22 01:51:15,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681565604] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:51:15,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:51:15,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:51:15,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976742379] [2022-11-22 01:51:15,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:51:15,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:51:15,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:51:15,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:51:15,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:51:15,871 INFO L87 Difference]: Start difference. First operand 14354 states and 19226 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (40), 3 states have call predecessors, (40), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-11-22 01:51:19,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:51:24,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:51:26,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:51:29,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:51:29,275 INFO L93 Difference]: Finished difference Result 14356 states and 19227 transitions. [2022-11-22 01:51:29,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:51:29,275 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (40), 3 states have call predecessors, (40), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 246 [2022-11-22 01:51:29,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:51:29,314 INFO L225 Difference]: With dead ends: 14356 [2022-11-22 01:51:29,314 INFO L226 Difference]: Without dead ends: 14354 [2022-11-22 01:51:29,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:51:29,318 INFO L413 NwaCegarLoop]: 2907 mSDtfsCounter, 26 mSDsluCounter, 8689 mSDsCounter, 0 mSdLazyCounter, 1543 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 11596 SdHoareTripleChecker+Invalid, 1544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:51:29,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 11596 Invalid, 1544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1543 Invalid, 0 Unknown, 0 Unchecked, 11.1s Time] [2022-11-22 01:51:29,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14354 states. [2022-11-22 01:51:31,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14354 to 14354. [2022-11-22 01:51:31,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14354 states, 8271 states have (on average 1.2512392697376375) internal successors, (10349), 8624 states have internal predecessors, (10349), 4300 states have call successors, (4300), 1775 states have call predecessors, (4300), 1774 states have return successors, (4574), 4230 states have call predecessors, (4574), 4296 states have call successors, (4574) [2022-11-22 01:51:31,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14354 states to 14354 states and 19223 transitions. [2022-11-22 01:51:31,565 INFO L78 Accepts]: Start accepts. Automaton has 14354 states and 19223 transitions. Word has length 246 [2022-11-22 01:51:31,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:51:31,566 INFO L495 AbstractCegarLoop]: Abstraction has 14354 states and 19223 transitions. [2022-11-22 01:51:31,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (40), 3 states have call predecessors, (40), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-11-22 01:51:31,566 INFO L276 IsEmpty]: Start isEmpty. Operand 14354 states and 19223 transitions. [2022-11-22 01:51:31,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2022-11-22 01:51:31,570 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:51:31,570 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-11-22 01:51:31,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-22 01:51:31,570 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-22 01:51:31,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:51:31,571 INFO L85 PathProgramCache]: Analyzing trace with hash 134117282, now seen corresponding path program 1 times [2022-11-22 01:51:31,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:51:31,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315401788] [2022-11-22 01:51:31,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:51:31,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:51:32,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:51:32,877 INFO L134 CoverageAnalysis]: Checked inductivity of 710 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 710 trivial. 0 not checked. [2022-11-22 01:51:32,877 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:51:32,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315401788] [2022-11-22 01:51:32,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315401788] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:51:32,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:51:32,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:51:32,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863876908] [2022-11-22 01:51:32,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:51:32,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:51:32,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:51:32,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:51:32,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:51:32,880 INFO L87 Difference]: Start difference. First operand 14354 states and 19223 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (38), 3 states have call predecessors, (38), 2 states have return successors, (35), 2 states have call predecessors, (35), 1 states have call successors, (35) [2022-11-22 01:51:37,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:51:42,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:51:49,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:51:49,704 INFO L93 Difference]: Finished difference Result 14366 states and 19229 transitions. [2022-11-22 01:51:49,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:51:49,705 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (38), 3 states have call predecessors, (38), 2 states have return successors, (35), 2 states have call predecessors, (35), 1 states have call successors, (35) Word has length 251 [2022-11-22 01:51:49,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:51:49,744 INFO L225 Difference]: With dead ends: 14366 [2022-11-22 01:51:49,744 INFO L226 Difference]: Without dead ends: 14364 [2022-11-22 01:51:49,750 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 [2022-11-22 01:51:49,750 INFO L413 NwaCegarLoop]: 4274 mSDtfsCounter, 2232 mSDsluCounter, 11106 mSDsCounter, 0 mSdLazyCounter, 2026 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2233 SdHoareTripleChecker+Valid, 15380 SdHoareTripleChecker+Invalid, 2026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:51:49,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2233 Valid, 15380 Invalid, 2026 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2026 Invalid, 0 Unknown, 0 Unchecked, 14.2s Time] [2022-11-22 01:51:49,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14364 states. [2022-11-22 01:51:51,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14364 to 14354. [2022-11-22 01:51:51,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14354 states, 8271 states have (on average 1.2508765566436948) internal successors, (10346), 8624 states have internal predecessors, (10346), 4300 states have call successors, (4300), 1775 states have call predecessors, (4300), 1774 states have return successors, (4574), 4230 states have call predecessors, (4574), 4296 states have call successors, (4574) [2022-11-22 01:51:52,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14354 states to 14354 states and 19220 transitions. [2022-11-22 01:51:52,044 INFO L78 Accepts]: Start accepts. Automaton has 14354 states and 19220 transitions. Word has length 251 [2022-11-22 01:51:52,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:51:52,044 INFO L495 AbstractCegarLoop]: Abstraction has 14354 states and 19220 transitions. [2022-11-22 01:51:52,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (38), 3 states have call predecessors, (38), 2 states have return successors, (35), 2 states have call predecessors, (35), 1 states have call successors, (35) [2022-11-22 01:51:52,044 INFO L276 IsEmpty]: Start isEmpty. Operand 14354 states and 19220 transitions. [2022-11-22 01:51:52,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2022-11-22 01:51:52,048 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:51:52,048 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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] [2022-11-22 01:51:52,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-22 01:51:52,049 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-22 01:51:52,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:51:52,049 INFO L85 PathProgramCache]: Analyzing trace with hash -2069646455, now seen corresponding path program 1 times [2022-11-22 01:51:52,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:51:52,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121949060] [2022-11-22 01:51:52,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:51:52,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:51:52,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:51:53,154 INFO L134 CoverageAnalysis]: Checked inductivity of 1061 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1061 trivial. 0 not checked. [2022-11-22 01:51:53,155 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:51:53,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121949060] [2022-11-22 01:51:53,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121949060] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:51:53,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:51:53,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:51:53,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97244926] [2022-11-22 01:51:53,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:51:53,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:51:53,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:51:53,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:51:53,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:51:53,157 INFO L87 Difference]: Start difference. First operand 14354 states and 19220 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-22 01:51:58,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:52:06,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:52:06,963 INFO L93 Difference]: Finished difference Result 23234 states and 30828 transitions. [2022-11-22 01:52:06,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:52:06,963 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 271 [2022-11-22 01:52:06,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:52:07,021 INFO L225 Difference]: With dead ends: 23234 [2022-11-22 01:52:07,021 INFO L226 Difference]: Without dead ends: 23232 [2022-11-22 01:52:07,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:52:07,028 INFO L413 NwaCegarLoop]: 3483 mSDtfsCounter, 3130 mSDsluCounter, 9306 mSDsCounter, 0 mSdLazyCounter, 1450 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3133 SdHoareTripleChecker+Valid, 12789 SdHoareTripleChecker+Invalid, 1454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1450 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:52:07,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3133 Valid, 12789 Invalid, 1454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1450 Invalid, 1 Unknown, 0 Unchecked, 9.9s Time] [2022-11-22 01:52:07,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23232 states. [2022-11-22 01:52:11,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23232 to 23209. [2022-11-22 01:52:11,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23209 states, 13384 states have (on average 1.2478332337118947) internal successors, (16701), 13936 states have internal predecessors, (16701), 6836 states have call successors, (6836), 2984 states have call predecessors, (6836), 2980 states have return successors, (7271), 6709 states have call predecessors, (7271), 6832 states have call successors, (7271) [2022-11-22 01:52:11,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23209 states to 23209 states and 30808 transitions. [2022-11-22 01:52:11,421 INFO L78 Accepts]: Start accepts. Automaton has 23209 states and 30808 transitions. Word has length 271 [2022-11-22 01:52:11,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:52:11,421 INFO L495 AbstractCegarLoop]: Abstraction has 23209 states and 30808 transitions. [2022-11-22 01:52:11,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-22 01:52:11,421 INFO L276 IsEmpty]: Start isEmpty. Operand 23209 states and 30808 transitions. [2022-11-22 01:52:11,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-11-22 01:52:11,426 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:52:11,427 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 12, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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] [2022-11-22 01:52:11,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-22 01:52:11,427 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-22 01:52:11,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:52:11,428 INFO L85 PathProgramCache]: Analyzing trace with hash 567566690, now seen corresponding path program 1 times [2022-11-22 01:52:11,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:52:11,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915277515] [2022-11-22 01:52:11,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:52:11,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:52:11,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:52:11,725 INFO L134 CoverageAnalysis]: Checked inductivity of 1083 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1083 trivial. 0 not checked. [2022-11-22 01:52:11,725 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:52:11,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915277515] [2022-11-22 01:52:11,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915277515] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:52:11,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:52:11,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:52:11,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789731624] [2022-11-22 01:52:11,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:52:11,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:52:11,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:52:11,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:52:11,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:52:11,728 INFO L87 Difference]: Start difference. First operand 23209 states and 30808 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2022-11-22 01:52:21,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:52:21,760 INFO L93 Difference]: Finished difference Result 42085 states and 55811 transitions. [2022-11-22 01:52:21,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:52:21,760 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) Word has length 286 [2022-11-22 01:52:21,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:52:21,845 INFO L225 Difference]: With dead ends: 42085 [2022-11-22 01:52:21,846 INFO L226 Difference]: Without dead ends: 24126 [2022-11-22 01:52:21,886 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 [2022-11-22 01:52:21,887 INFO L413 NwaCegarLoop]: 3124 mSDtfsCounter, 135 mSDsluCounter, 2937 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 6061 SdHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:52:21,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 6061 Invalid, 797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 794 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-22 01:52:21,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24126 states. [2022-11-22 01:52:26,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24126 to 23242. [2022-11-22 01:52:26,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23242 states, 13414 states have (on average 1.2481735500223647) internal successors, (16743), 13966 states have internal predecessors, (16743), 6839 states have call successors, (6839), 2984 states have call predecessors, (6839), 2980 states have return successors, (7274), 6712 states have call predecessors, (7274), 6835 states have call successors, (7274) [2022-11-22 01:52:26,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23242 states to 23242 states and 30856 transitions. [2022-11-22 01:52:26,263 INFO L78 Accepts]: Start accepts. Automaton has 23242 states and 30856 transitions. Word has length 286 [2022-11-22 01:52:26,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:52:26,264 INFO L495 AbstractCegarLoop]: Abstraction has 23242 states and 30856 transitions. [2022-11-22 01:52:26,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2022-11-22 01:52:26,264 INFO L276 IsEmpty]: Start isEmpty. Operand 23242 states and 30856 transitions. [2022-11-22 01:52:26,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2022-11-22 01:52:26,269 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:52:26,270 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 12, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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] [2022-11-22 01:52:26,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-11-22 01:52:26,270 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-22 01:52:26,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:52:26,270 INFO L85 PathProgramCache]: Analyzing trace with hash 953377163, now seen corresponding path program 1 times [2022-11-22 01:52:26,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:52:26,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492604307] [2022-11-22 01:52:26,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:52:26,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:52:26,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:52:27,909 INFO L134 CoverageAnalysis]: Checked inductivity of 1085 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1085 trivial. 0 not checked. [2022-11-22 01:52:27,909 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:52:27,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492604307] [2022-11-22 01:52:27,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492604307] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:52:27,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:52:27,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-22 01:52:27,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028042955] [2022-11-22 01:52:27,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:52:27,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:52:27,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:52:27,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:52:27,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:52:27,911 INFO L87 Difference]: Start difference. First operand 23242 states and 30856 transitions. Second operand has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 6 states have internal predecessors, (87), 2 states have call successors, (43), 3 states have call predecessors, (43), 2 states have return successors, (41), 3 states have call predecessors, (41), 2 states have call successors, (41) [2022-11-22 01:52:34,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:52:42,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:52:49,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:52:49,277 INFO L93 Difference]: Finished difference Result 23894 states and 31860 transitions. [2022-11-22 01:52:49,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 01:52:49,277 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 6 states have internal predecessors, (87), 2 states have call successors, (43), 3 states have call predecessors, (43), 2 states have return successors, (41), 3 states have call predecessors, (41), 2 states have call successors, (41) Word has length 300 [2022-11-22 01:52:49,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:52:49,338 INFO L225 Difference]: With dead ends: 23894 [2022-11-22 01:52:49,338 INFO L226 Difference]: Without dead ends: 23892 [2022-11-22 01:52:49,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-22 01:52:49,347 INFO L413 NwaCegarLoop]: 3150 mSDtfsCounter, 291 mSDsluCounter, 15124 mSDsCounter, 0 mSdLazyCounter, 2817 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 18274 SdHoareTripleChecker+Invalid, 2881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 2817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:52:49,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 18274 Invalid, 2881 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [64 Valid, 2817 Invalid, 0 Unknown, 0 Unchecked, 17.0s Time] [2022-11-22 01:52:49,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23892 states. [2022-11-22 01:52:52,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23892 to 23461. [2022-11-22 01:52:52,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23461 states, 13561 states have (on average 1.2496866012830912) internal successors, (16947), 14128 states have internal predecessors, (16947), 6890 states have call successors, (6890), 3008 states have call predecessors, (6890), 3001 states have return successors, (7325), 6745 states have call predecessors, (7325), 6886 states have call successors, (7325) [2022-11-22 01:52:52,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23461 states to 23461 states and 31162 transitions. [2022-11-22 01:52:52,872 INFO L78 Accepts]: Start accepts. Automaton has 23461 states and 31162 transitions. Word has length 300 [2022-11-22 01:52:52,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:52:52,872 INFO L495 AbstractCegarLoop]: Abstraction has 23461 states and 31162 transitions. [2022-11-22 01:52:52,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 6 states have internal predecessors, (87), 2 states have call successors, (43), 3 states have call predecessors, (43), 2 states have return successors, (41), 3 states have call predecessors, (41), 2 states have call successors, (41) [2022-11-22 01:52:52,872 INFO L276 IsEmpty]: Start isEmpty. Operand 23461 states and 31162 transitions. [2022-11-22 01:52:52,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2022-11-22 01:52:52,879 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:52:52,880 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:52:52,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-11-22 01:52:52,880 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-22 01:52:52,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:52:52,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1272326107, now seen corresponding path program 1 times [2022-11-22 01:52:52,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:52:52,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256167763] [2022-11-22 01:52:52,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:52:52,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:52:54,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:52:55,968 INFO L134 CoverageAnalysis]: Checked inductivity of 495 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 471 trivial. 0 not checked. [2022-11-22 01:52:55,968 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:52:55,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256167763] [2022-11-22 01:52:55,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256167763] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:52:55,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1239263968] [2022-11-22 01:52:55,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:52:55,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:52:55,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:52:55,974 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:52:56,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 01:52:57,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:52:58,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 5079 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-22 01:52:58,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:52:58,100 INFO L134 CoverageAnalysis]: Checked inductivity of 495 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2022-11-22 01:52:58,101 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:52:58,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1239263968] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:52:58,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:52:58,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 7 [2022-11-22 01:52:58,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824198878] [2022-11-22 01:52:58,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:52:58,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 01:52:58,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:52:58,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 01:52:58,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:52:58,104 INFO L87 Difference]: Start difference. First operand 23461 states and 31162 transitions. Second operand has 7 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 2 states have call successors, (50), 2 states have call predecessors, (50), 3 states have return successors, (48), 3 states have call predecessors, (48), 2 states have call successors, (48) [2022-11-22 01:53:03,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:53:08,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:53:11,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:53:18,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:53:18,783 INFO L93 Difference]: Finished difference Result 46102 states and 61755 transitions. [2022-11-22 01:53:18,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 01:53:18,784 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 2 states have call successors, (50), 2 states have call predecessors, (50), 3 states have return successors, (48), 3 states have call predecessors, (48), 2 states have call successors, (48) Word has length 294 [2022-11-22 01:53:18,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:53:18,901 INFO L225 Difference]: With dead ends: 46102 [2022-11-22 01:53:18,901 INFO L226 Difference]: Without dead ends: 26301 [2022-11-22 01:53:19,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 295 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-22 01:53:19,081 INFO L413 NwaCegarLoop]: 3189 mSDtfsCounter, 932 mSDsluCounter, 15682 mSDsCounter, 0 mSdLazyCounter, 2704 mSolverCounterSat, 392 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1087 SdHoareTripleChecker+Valid, 18871 SdHoareTripleChecker+Invalid, 3097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 392 IncrementalHoareTripleChecker+Valid, 2704 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:53:19,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1087 Valid, 18871 Invalid, 3097 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [392 Valid, 2704 Invalid, 1 Unknown, 0 Unchecked, 15.7s Time] [2022-11-22 01:53:19,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26301 states. [2022-11-22 01:53:22,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26301 to 23461. [2022-11-22 01:53:22,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23461 states, 13561 states have (on average 1.2496128604085244) internal successors, (16946), 14128 states have internal predecessors, (16946), 6890 states have call successors, (6890), 3008 states have call predecessors, (6890), 3001 states have return successors, (7325), 6745 states have call predecessors, (7325), 6886 states have call successors, (7325) [2022-11-22 01:53:22,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23461 states to 23461 states and 31161 transitions. [2022-11-22 01:53:22,679 INFO L78 Accepts]: Start accepts. Automaton has 23461 states and 31161 transitions. Word has length 294 [2022-11-22 01:53:22,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:53:22,679 INFO L495 AbstractCegarLoop]: Abstraction has 23461 states and 31161 transitions. [2022-11-22 01:53:22,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 2 states have call successors, (50), 2 states have call predecessors, (50), 3 states have return successors, (48), 3 states have call predecessors, (48), 2 states have call successors, (48) [2022-11-22 01:53:22,680 INFO L276 IsEmpty]: Start isEmpty. Operand 23461 states and 31161 transitions. [2022-11-22 01:53:22,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2022-11-22 01:53:22,851 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:53:22,851 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 9, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:53:22,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 01:53:23,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:53:23,071 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-22 01:53:23,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:53:23,071 INFO L85 PathProgramCache]: Analyzing trace with hash -618234197, now seen corresponding path program 1 times [2022-11-22 01:53:23,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:53:23,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690092428] [2022-11-22 01:53:23,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:53:23,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:53:25,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:53:28,246 INFO L134 CoverageAnalysis]: Checked inductivity of 844 backedges. 4 proven. 52 refuted. 0 times theorem prover too weak. 788 trivial. 0 not checked. [2022-11-22 01:53:28,247 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:53:28,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690092428] [2022-11-22 01:53:28,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690092428] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:53:28,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1541308490] [2022-11-22 01:53:28,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:53:28,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:53:28,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:53:28,249 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:53:28,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 01:53:30,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:53:30,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 5880 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-22 01:53:30,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:53:30,800 INFO L134 CoverageAnalysis]: Checked inductivity of 844 backedges. 222 proven. 0 refuted. 0 times theorem prover too weak. 622 trivial. 0 not checked. [2022-11-22 01:53:30,800 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:53:30,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1541308490] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:53:30,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:53:30,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [9] total 16 [2022-11-22 01:53:30,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785028678] [2022-11-22 01:53:30,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:53:30,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 01:53:30,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:53:30,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 01:53:30,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2022-11-22 01:53:30,812 INFO L87 Difference]: Start difference. First operand 23461 states and 31161 transitions. Second operand has 11 states, 8 states have (on average 14.75) internal successors, (118), 10 states have internal predecessors, (118), 6 states have call successors, (63), 2 states have call predecessors, (63), 4 states have return successors, (59), 6 states have call predecessors, (59), 6 states have call successors, (59) [2022-11-22 01:53:41,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:53:48,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:53:49,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:53:53,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:54:02,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:54:02,907 INFO L93 Difference]: Finished difference Result 48152 states and 64354 transitions. [2022-11-22 01:54:02,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-22 01:54:02,908 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 14.75) internal successors, (118), 10 states have internal predecessors, (118), 6 states have call successors, (63), 2 states have call predecessors, (63), 4 states have return successors, (59), 6 states have call predecessors, (59), 6 states have call successors, (59) Word has length 416 [2022-11-22 01:54:02,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:54:03,017 INFO L225 Difference]: With dead ends: 48152 [2022-11-22 01:54:03,018 INFO L226 Difference]: Without dead ends: 24865 [2022-11-22 01:54:03,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 410 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2022-11-22 01:54:03,087 INFO L413 NwaCegarLoop]: 3302 mSDtfsCounter, 946 mSDsluCounter, 28402 mSDsCounter, 0 mSdLazyCounter, 4671 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 946 SdHoareTripleChecker+Valid, 31704 SdHoareTripleChecker+Invalid, 5219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 548 IncrementalHoareTripleChecker+Valid, 4671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:54:03,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [946 Valid, 31704 Invalid, 5219 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [548 Valid, 4671 Invalid, 0 Unknown, 0 Unchecked, 27.0s Time] [2022-11-22 01:54:03,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24865 states. [2022-11-22 01:54:06,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24865 to 23474. [2022-11-22 01:54:06,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23474 states, 13569 states have (on average 1.2494656938610067) internal successors, (16954), 14136 states have internal predecessors, (16954), 6895 states have call successors, (6895), 3008 states have call predecessors, (6895), 3001 states have return successors, (7330), 6750 states have call predecessors, (7330), 6891 states have call successors, (7330) [2022-11-22 01:54:06,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23474 states to 23474 states and 31179 transitions. [2022-11-22 01:54:06,728 INFO L78 Accepts]: Start accepts. Automaton has 23474 states and 31179 transitions. Word has length 416 [2022-11-22 01:54:06,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:54:06,728 INFO L495 AbstractCegarLoop]: Abstraction has 23474 states and 31179 transitions. [2022-11-22 01:54:06,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 14.75) internal successors, (118), 10 states have internal predecessors, (118), 6 states have call successors, (63), 2 states have call predecessors, (63), 4 states have return successors, (59), 6 states have call predecessors, (59), 6 states have call successors, (59) [2022-11-22 01:54:06,728 INFO L276 IsEmpty]: Start isEmpty. Operand 23474 states and 31179 transitions. [2022-11-22 01:54:06,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2022-11-22 01:54:06,736 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:54:06,736 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 10, 8, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:54:06,753 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-22 01:54:06,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93dc9ed-1564-4524-ba23-53244dc563c2/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:54:06,937 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-22 01:54:06,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:54:06,937 INFO L85 PathProgramCache]: Analyzing trace with hash -903724133, now seen corresponding path program 1 times [2022-11-22 01:54:06,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:54:06,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274514575] [2022-11-22 01:54:06,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:54:06,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:54:07,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:54:07,704 INFO L134 CoverageAnalysis]: Checked inductivity of 892 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 892 trivial. 0 not checked. [2022-11-22 01:54:07,704 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:54:07,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274514575] [2022-11-22 01:54:07,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274514575] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:54:07,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:54:07,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:54:07,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475045505] [2022-11-22 01:54:07,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:54:07,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:54:07,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:54:07,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:54:07,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:54:07,706 INFO L87 Difference]: Start difference. First operand 23474 states and 31179 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2022-11-22 01:54:09,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:54:13,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:54:14,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:54:19,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:54:19,627 INFO L93 Difference]: Finished difference Result 48237 states and 64475 transitions. [2022-11-22 01:54:19,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:54:19,633 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) Word has length 431 [2022-11-22 01:54:19,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:54:19,710 INFO L225 Difference]: With dead ends: 48237 [2022-11-22 01:54:19,710 INFO L226 Difference]: Without dead ends: 24885 [2022-11-22 01:54:19,761 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 [2022-11-22 01:54:19,762 INFO L413 NwaCegarLoop]: 3348 mSDtfsCounter, 244 mSDsluCounter, 3035 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 6383 SdHoareTripleChecker+Invalid, 818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:54:19,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 6383 Invalid, 818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2022-11-22 01:54:19,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24885 states. [2022-11-22 01:54:23,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24885 to 23477. [2022-11-22 01:54:23,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23477 states, 13572 states have (on average 1.249484232242853) internal successors, (16958), 14139 states have internal predecessors, (16958), 6895 states have call successors, (6895), 3008 states have call predecessors, (6895), 3001 states have return successors, (7330), 6750 states have call predecessors, (7330), 6891 states have call successors, (7330) [2022-11-22 01:54:23,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23477 states to 23477 states and 31183 transitions. [2022-11-22 01:54:23,588 INFO L78 Accepts]: Start accepts. Automaton has 23477 states and 31183 transitions. Word has length 431 [2022-11-22 01:54:23,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:54:23,588 INFO L495 AbstractCegarLoop]: Abstraction has 23477 states and 31183 transitions. [2022-11-22 01:54:23,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2022-11-22 01:54:23,589 INFO L276 IsEmpty]: Start isEmpty. Operand 23477 states and 31183 transitions. [2022-11-22 01:54:23,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2022-11-22 01:54:23,599 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:54:23,600 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:54:23,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-11-22 01:54:23,600 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-22 01:54:23,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:54:23,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1255840793, now seen corresponding path program 1 times [2022-11-22 01:54:23,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:54:23,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411468257] [2022-11-22 01:54:23,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:54:23,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms