./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2d0073111a5c7b021bc76098b9f15e3306b34538df9d4af329dd19631f32f125 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 04:11:15,151 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 04:11:15,154 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 04:11:15,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 04:11:15,193 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 04:11:15,197 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 04:11:15,200 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 04:11:15,203 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 04:11:15,205 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 04:11:15,206 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 04:11:15,207 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 04:11:15,209 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 04:11:15,209 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 04:11:15,210 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 04:11:15,211 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 04:11:15,212 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 04:11:15,213 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 04:11:15,214 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 04:11:15,216 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 04:11:15,223 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 04:11:15,227 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 04:11:15,229 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 04:11:15,231 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 04:11:15,231 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 04:11:15,241 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 04:11:15,241 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 04:11:15,241 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 04:11:15,243 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 04:11:15,244 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 04:11:15,245 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 04:11:15,245 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 04:11:15,247 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 04:11:15,248 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 04:11:15,248 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 04:11:15,249 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 04:11:15,250 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 04:11:15,251 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 04:11:15,251 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 04:11:15,251 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 04:11:15,252 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 04:11:15,253 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 04:11:15,255 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 04:11:15,303 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 04:11:15,303 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 04:11:15,303 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 04:11:15,303 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 04:11:15,304 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 04:11:15,304 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 04:11:15,304 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 04:11:15,305 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 04:11:15,305 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 04:11:15,305 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 04:11:15,305 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 04:11:15,305 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 04:11:15,306 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 04:11:15,306 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 04:11:15,306 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 04:11:15,306 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 04:11:15,307 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 04:11:15,307 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 04:11:15,307 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 04:11:15,308 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 04:11:15,308 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 04:11:15,308 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 04:11:15,308 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 04:11:15,308 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 04:11:15,309 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 04:11:15,309 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 04:11:15,309 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 04:11:15,309 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 04:11:15,310 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 04:11:15,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:11:15,311 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 04:11:15,312 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 04:11:15,312 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 04:11:15,313 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 04:11:15,313 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 04:11:15,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 04:11:15,314 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 04:11:15,314 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 04:11:15,315 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_cc0ce939-e449-4869-b49a-688fb7af9d65/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d0073111a5c7b021bc76098b9f15e3306b34538df9d4af329dd19631f32f125 [2022-11-03 04:11:15,596 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 04:11:15,635 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 04:11:15,638 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 04:11:15,639 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 04:11:15,640 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 04:11:15,641 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i [2022-11-03 04:11:15,709 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/bin/utaipan-7li7fVZpFI/data/1928fb678/2617fca724d04787b850b57313473b30/FLAG5ea779311 [2022-11-03 04:11:16,846 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 04:11:16,847 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i [2022-11-03 04:11:16,948 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/bin/utaipan-7li7fVZpFI/data/1928fb678/2617fca724d04787b850b57313473b30/FLAG5ea779311 [2022-11-03 04:11:17,060 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/bin/utaipan-7li7fVZpFI/data/1928fb678/2617fca724d04787b850b57313473b30 [2022-11-03 04:11:17,064 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 04:11:17,067 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 04:11:17,070 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 04:11:17,071 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 04:11:17,074 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 04:11:17,076 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:11:17" (1/1) ... [2022-11-03 04:11:17,077 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f234d2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:17, skipping insertion in model container [2022-11-03 04:11:17,077 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:11:17" (1/1) ... [2022-11-03 04:11:17,085 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 04:11:17,346 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 04:11:27,047 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[659699,659712] [2022-11-03 04:11:27,050 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[659844,659857] [2022-11-03 04:11:27,050 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[659990,660003] [2022-11-03 04:11:27,051 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660155,660168] [2022-11-03 04:11:27,051 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660313,660326] [2022-11-03 04:11:27,052 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660471,660484] [2022-11-03 04:11:27,052 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660629,660642] [2022-11-03 04:11:27,053 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660789,660802] [2022-11-03 04:11:27,053 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660948,660961] [2022-11-03 04:11:27,054 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661087,661100] [2022-11-03 04:11:27,054 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661229,661242] [2022-11-03 04:11:27,055 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661378,661391] [2022-11-03 04:11:27,055 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661517,661530] [2022-11-03 04:11:27,056 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661672,661685] [2022-11-03 04:11:27,056 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661832,661845] [2022-11-03 04:11:27,057 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661983,661996] [2022-11-03 04:11:27,057 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662134,662147] [2022-11-03 04:11:27,070 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662286,662299] [2022-11-03 04:11:27,071 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662435,662448] [2022-11-03 04:11:27,072 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662583,662596] [2022-11-03 04:11:27,072 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662740,662753] [2022-11-03 04:11:27,073 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662889,662902] [2022-11-03 04:11:27,073 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663045,663058] [2022-11-03 04:11:27,074 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663198,663211] [2022-11-03 04:11:27,074 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663344,663357] [2022-11-03 04:11:27,075 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663487,663500] [2022-11-03 04:11:27,075 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663639,663652] [2022-11-03 04:11:27,076 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663785,663798] [2022-11-03 04:11:27,076 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663930,663943] [2022-11-03 04:11:27,077 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664084,664097] [2022-11-03 04:11:27,077 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664235,664248] [2022-11-03 04:11:27,078 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664390,664403] [2022-11-03 04:11:27,078 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664542,664555] [2022-11-03 04:11:27,079 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664697,664710] [2022-11-03 04:11:27,079 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664861,664874] [2022-11-03 04:11:27,080 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665017,665030] [2022-11-03 04:11:27,080 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665181,665194] [2022-11-03 04:11:27,087 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665323,665336] [2022-11-03 04:11:27,088 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665481,665494] [2022-11-03 04:11:27,088 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665648,665661] [2022-11-03 04:11:27,089 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665807,665820] [2022-11-03 04:11:27,089 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665966,665979] [2022-11-03 04:11:27,089 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666115,666128] [2022-11-03 04:11:27,090 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666262,666275] [2022-11-03 04:11:27,090 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666401,666414] [2022-11-03 04:11:27,091 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666564,666577] [2022-11-03 04:11:27,091 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666730,666743] [2022-11-03 04:11:27,092 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666894,666907] [2022-11-03 04:11:27,092 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667059,667072] [2022-11-03 04:11:27,093 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667224,667237] [2022-11-03 04:11:27,093 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667390,667403] [2022-11-03 04:11:27,093 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667555,667568] [2022-11-03 04:11:27,094 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667722,667735] [2022-11-03 04:11:27,094 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667882,667895] [2022-11-03 04:11:27,095 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668044,668057] [2022-11-03 04:11:27,095 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668203,668216] [2022-11-03 04:11:27,096 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668349,668362] [2022-11-03 04:11:27,096 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668492,668505] [2022-11-03 04:11:27,097 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668636,668649] [2022-11-03 04:11:27,097 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668779,668792] [2022-11-03 04:11:27,097 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668923,668936] [2022-11-03 04:11:27,098 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669064,669077] [2022-11-03 04:11:27,098 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669202,669215] [2022-11-03 04:11:27,099 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669360,669373] [2022-11-03 04:11:27,099 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669519,669532] [2022-11-03 04:11:27,100 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669675,669688] [2022-11-03 04:11:27,100 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669824,669837] [2022-11-03 04:11:27,100 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669976,669989] [2022-11-03 04:11:27,101 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670127,670140] [2022-11-03 04:11:27,101 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670276,670289] [2022-11-03 04:11:27,102 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670428,670441] [2022-11-03 04:11:27,102 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670576,670589] [2022-11-03 04:11:27,103 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670729,670742] [2022-11-03 04:11:27,103 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670880,670893] [2022-11-03 04:11:27,103 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671030,671043] [2022-11-03 04:11:27,104 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671177,671190] [2022-11-03 04:11:27,104 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671328,671341] [2022-11-03 04:11:27,105 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671479,671492] [2022-11-03 04:11:27,105 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671627,671640] [2022-11-03 04:11:27,106 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671793,671806] [2022-11-03 04:11:27,106 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671962,671975] [2022-11-03 04:11:27,107 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672129,672142] [2022-11-03 04:11:27,107 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672297,672310] [2022-11-03 04:11:27,108 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672447,672460] [2022-11-03 04:11:27,108 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672594,672607] [2022-11-03 04:11:27,108 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672755,672768] [2022-11-03 04:11:27,109 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672925,672938] [2022-11-03 04:11:27,109 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[673087,673100] [2022-11-03 04:11:27,143 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:11:27,172 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 04:11:28,010 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[659699,659712] [2022-11-03 04:11:28,016 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[659844,659857] [2022-11-03 04:11:28,016 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[659990,660003] [2022-11-03 04:11:28,017 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660155,660168] [2022-11-03 04:11:28,018 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660313,660326] [2022-11-03 04:11:28,018 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660471,660484] [2022-11-03 04:11:28,019 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660629,660642] [2022-11-03 04:11:28,019 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660789,660802] [2022-11-03 04:11:28,019 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660948,660961] [2022-11-03 04:11:28,020 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661087,661100] [2022-11-03 04:11:28,022 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661229,661242] [2022-11-03 04:11:28,022 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661378,661391] [2022-11-03 04:11:28,023 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661517,661530] [2022-11-03 04:11:28,023 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661672,661685] [2022-11-03 04:11:28,024 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661832,661845] [2022-11-03 04:11:28,024 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661983,661996] [2022-11-03 04:11:28,024 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662134,662147] [2022-11-03 04:11:28,025 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662286,662299] [2022-11-03 04:11:28,025 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662435,662448] [2022-11-03 04:11:28,026 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662583,662596] [2022-11-03 04:11:28,026 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662740,662753] [2022-11-03 04:11:28,026 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662889,662902] [2022-11-03 04:11:28,028 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663045,663058] [2022-11-03 04:11:28,029 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663198,663211] [2022-11-03 04:11:28,029 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663344,663357] [2022-11-03 04:11:28,030 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663487,663500] [2022-11-03 04:11:28,030 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663639,663652] [2022-11-03 04:11:28,031 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663785,663798] [2022-11-03 04:11:28,031 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663930,663943] [2022-11-03 04:11:28,032 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664084,664097] [2022-11-03 04:11:28,032 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664235,664248] [2022-11-03 04:11:28,032 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664390,664403] [2022-11-03 04:11:28,033 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664542,664555] [2022-11-03 04:11:28,034 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664697,664710] [2022-11-03 04:11:28,035 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664861,664874] [2022-11-03 04:11:28,035 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665017,665030] [2022-11-03 04:11:28,036 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665181,665194] [2022-11-03 04:11:28,037 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665323,665336] [2022-11-03 04:11:28,038 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665481,665494] [2022-11-03 04:11:28,038 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665648,665661] [2022-11-03 04:11:28,039 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665807,665820] [2022-11-03 04:11:28,040 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665966,665979] [2022-11-03 04:11:28,040 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666115,666128] [2022-11-03 04:11:28,041 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666262,666275] [2022-11-03 04:11:28,041 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666401,666414] [2022-11-03 04:11:28,042 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666564,666577] [2022-11-03 04:11:28,042 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666730,666743] [2022-11-03 04:11:28,042 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666894,666907] [2022-11-03 04:11:28,043 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667059,667072] [2022-11-03 04:11:28,043 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667224,667237] [2022-11-03 04:11:28,044 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667390,667403] [2022-11-03 04:11:28,044 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667555,667568] [2022-11-03 04:11:28,045 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667722,667735] [2022-11-03 04:11:28,046 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667882,667895] [2022-11-03 04:11:28,047 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668044,668057] [2022-11-03 04:11:28,049 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668203,668216] [2022-11-03 04:11:28,052 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668349,668362] [2022-11-03 04:11:28,053 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668492,668505] [2022-11-03 04:11:28,053 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668636,668649] [2022-11-03 04:11:28,054 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668779,668792] [2022-11-03 04:11:28,055 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668923,668936] [2022-11-03 04:11:28,055 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669064,669077] [2022-11-03 04:11:28,056 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669202,669215] [2022-11-03 04:11:28,056 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669360,669373] [2022-11-03 04:11:28,061 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669519,669532] [2022-11-03 04:11:28,066 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669675,669688] [2022-11-03 04:11:28,066 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669824,669837] [2022-11-03 04:11:28,067 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669976,669989] [2022-11-03 04:11:28,067 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670127,670140] [2022-11-03 04:11:28,068 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670276,670289] [2022-11-03 04:11:28,068 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670428,670441] [2022-11-03 04:11:28,068 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670576,670589] [2022-11-03 04:11:28,069 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670729,670742] [2022-11-03 04:11:28,069 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670880,670893] [2022-11-03 04:11:28,069 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671030,671043] [2022-11-03 04:11:28,070 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671177,671190] [2022-11-03 04:11:28,070 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671328,671341] [2022-11-03 04:11:28,070 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671479,671492] [2022-11-03 04:11:28,072 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671627,671640] [2022-11-03 04:11:28,073 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671793,671806] [2022-11-03 04:11:28,073 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671962,671975] [2022-11-03 04:11:28,074 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672129,672142] [2022-11-03 04:11:28,075 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672297,672310] [2022-11-03 04:11:28,075 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672447,672460] [2022-11-03 04:11:28,076 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672594,672607] [2022-11-03 04:11:28,076 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672755,672768] [2022-11-03 04:11:28,076 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672925,672938] [2022-11-03 04:11:28,077 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[673087,673100] [2022-11-03 04:11:28,085 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:11:28,437 INFO L208 MainTranslator]: Completed translation [2022-11-03 04:11:28,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:28 WrapperNode [2022-11-03 04:11:28,438 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 04:11:28,439 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 04:11:28,439 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 04:11:28,439 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 04:11:28,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:28" (1/1) ... [2022-11-03 04:11:28,605 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:28" (1/1) ... [2022-11-03 04:11:29,008 INFO L138 Inliner]: procedures = 981, calls = 6401, calls flagged for inlining = 457, calls inlined = 329, statements flattened = 12915 [2022-11-03 04:11:29,008 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 04:11:29,010 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 04:11:29,010 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 04:11:29,010 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 04:11:29,019 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:28" (1/1) ... [2022-11-03 04:11:29,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:28" (1/1) ... [2022-11-03 04:11:29,089 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:28" (1/1) ... [2022-11-03 04:11:29,090 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:28" (1/1) ... [2022-11-03 04:11:29,279 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:28" (1/1) ... [2022-11-03 04:11:29,344 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:28" (1/1) ... [2022-11-03 04:11:29,548 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:28" (1/1) ... [2022-11-03 04:11:29,590 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:28" (1/1) ... [2022-11-03 04:11:29,660 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 04:11:29,662 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 04:11:29,662 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 04:11:29,662 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 04:11:29,663 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:28" (1/1) ... [2022-11-03 04:11:29,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:11:29,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:11:29,698 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 04:11:29,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc0ce939-e449-4869-b49a-688fb7af9d65/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 04:11:29,753 INFO L130 BoogieDeclarations]: Found specification of procedure dput [2022-11-03 04:11:29,753 INFO L138 BoogieDeclarations]: Found implementation of procedure dput [2022-11-03 04:11:29,753 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-03 04:11:29,753 INFO L130 BoogieDeclarations]: Found specification of procedure i_size_read [2022-11-03 04:11:29,753 INFO L138 BoogieDeclarations]: Found implementation of procedure i_size_read [2022-11-03 04:11:29,753 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_DeleteNSEntry [2022-11-03 04:11:29,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_DeleteNSEntry [2022-11-03 04:11:29,754 INFO L130 BoogieDeclarations]: Found specification of procedure ncp__io2vol [2022-11-03 04:11:29,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp__io2vol [2022-11-03 04:11:29,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-03 04:11:29,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-03 04:11:29,756 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_update_dates [2022-11-03 04:11:29,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_update_dates [2022-11-03 04:11:29,757 INFO L130 BoogieDeclarations]: Found specification of procedure __ncp_start_request [2022-11-03 04:11:29,757 INFO L138 BoogieDeclarations]: Found implementation of procedure __ncp_start_request [2022-11-03 04:11:29,757 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-11-03 04:11:29,757 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-11-03 04:11:29,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-03 04:11:29,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-03 04:11:29,757 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_obtain_info [2022-11-03 04:11:29,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_obtain_info [2022-11-03 04:11:29,758 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_file_write [2022-11-03 04:11:29,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_file_write [2022-11-03 04:11:29,758 INFO L130 BoogieDeclarations]: Found specification of procedure new_encode_dev [2022-11-03 04:11:29,758 INFO L138 BoogieDeclarations]: Found implementation of procedure new_encode_dev [2022-11-03 04:11:29,758 INFO L130 BoogieDeclarations]: Found specification of procedure sign_packet [2022-11-03 04:11:29,758 INFO L138 BoogieDeclarations]: Found implementation of procedure sign_packet [2022-11-03 04:11:29,759 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_file_mmap_fault [2022-11-03 04:11:29,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_file_mmap_fault [2022-11-03 04:11:29,759 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_obtain_nfs_info [2022-11-03 04:11:29,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_obtain_nfs_info [2022-11-03 04:11:29,759 INFO L130 BoogieDeclarations]: Found specification of procedure grab_cache_page [2022-11-03 04:11:29,759 INFO L138 BoogieDeclarations]: Found implementation of procedure grab_cache_page [2022-11-03 04:11:29,759 INFO L130 BoogieDeclarations]: Found specification of procedure get_current___1 [2022-11-03 04:11:29,759 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current___1 [2022-11-03 04:11:29,760 INFO L130 BoogieDeclarations]: Found specification of procedure get_current___0 [2022-11-03 04:11:29,760 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current___0 [2022-11-03 04:11:29,760 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_make_open [2022-11-03 04:11:29,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_make_open [2022-11-03 04:11:29,760 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 04:11:29,760 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 04:11:29,760 INFO L130 BoogieDeclarations]: Found specification of procedure fput [2022-11-03 04:11:29,761 INFO L138 BoogieDeclarations]: Found implementation of procedure fput [2022-11-03 04:11:29,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-11-03 04:11:29,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-11-03 04:11:29,761 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2022-11-03 04:11:29,761 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2022-11-03 04:11:29,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 04:11:29,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 04:11:29,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-03 04:11:29,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-03 04:11:29,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 04:11:29,762 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_ioctl [2022-11-03 04:11:29,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_ioctl [2022-11-03 04:11:29,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-11-03 04:11:29,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-11-03 04:11:29,763 INFO L130 BoogieDeclarations]: Found specification of procedure kmap [2022-11-03 04:11:29,763 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap [2022-11-03 04:11:29,763 INFO L130 BoogieDeclarations]: Found specification of procedure iunique [2022-11-03 04:11:29,763 INFO L138 BoogieDeclarations]: Found implementation of procedure iunique [2022-11-03 04:11:29,763 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_reply_le16 [2022-11-03 04:11:29,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_reply_le16 [2022-11-03 04:11:29,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-03 04:11:29,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-03 04:11:29,768 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_statfs [2022-11-03 04:11:29,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_statfs [2022-11-03 04:11:29,769 INFO L130 BoogieDeclarations]: Found specification of procedure assert_server_locked [2022-11-03 04:11:29,769 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_server_locked [2022-11-03 04:11:29,769 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-03 04:11:29,769 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-03 04:11:29,769 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_write_kernel [2022-11-03 04:11:29,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_write_kernel [2022-11-03 04:11:29,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-03 04:11:29,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-03 04:11:29,772 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_reply_byte [2022-11-03 04:11:29,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_reply_byte [2022-11-03 04:11:29,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 04:11:29,773 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2022-11-03 04:11:29,773 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2022-11-03 04:11:29,773 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~wchar_t~0~X~$Pointer$~X~int~TO~int [2022-11-03 04:11:29,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~wchar_t~0~X~$Pointer$~X~int~TO~int [2022-11-03 04:11:29,773 INFO L130 BoogieDeclarations]: Found specification of procedure i_size_write [2022-11-03 04:11:29,773 INFO L138 BoogieDeclarations]: Found implementation of procedure i_size_write [2022-11-03 04:11:29,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-03 04:11:29,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-03 04:11:29,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 04:11:29,774 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_destroy_inode [2022-11-03 04:11:29,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_destroy_inode [2022-11-03 04:11:29,774 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_update_attrs [2022-11-03 04:11:29,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_update_attrs [2022-11-03 04:11:29,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 04:11:29,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 04:11:29,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 04:11:29,775 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 04:11:29,775 INFO L130 BoogieDeclarations]: Found specification of procedure bdi_destroy [2022-11-03 04:11:29,775 INFO L138 BoogieDeclarations]: Found implementation of procedure bdi_destroy [2022-11-03 04:11:29,775 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-03 04:11:29,775 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-03 04:11:29,775 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_get_volume_root [2022-11-03 04:11:29,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_get_volume_root [2022-11-03 04:11:29,776 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-03 04:11:29,776 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-03 04:11:29,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_ncp_server [2022-11-03 04:11:29,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_ncp_server [2022-11-03 04:11:29,776 INFO L130 BoogieDeclarations]: Found specification of procedure unload_nls [2022-11-03 04:11:29,776 INFO L138 BoogieDeclarations]: Found implementation of procedure unload_nls [2022-11-03 04:11:29,776 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_request [2022-11-03 04:11:29,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_request [2022-11-03 04:11:29,777 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_date_dos2unix [2022-11-03 04:11:29,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_date_dos2unix [2022-11-03 04:11:29,777 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_new_dentry [2022-11-03 04:11:29,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_new_dentry [2022-11-03 04:11:29,777 INFO L130 BoogieDeclarations]: Found specification of procedure recalc_sigpending [2022-11-03 04:11:29,777 INFO L138 BoogieDeclarations]: Found implementation of procedure recalc_sigpending [2022-11-03 04:11:29,777 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-03 04:11:29,778 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-03 04:11:29,778 INFO L130 BoogieDeclarations]: Found specification of procedure nls_tolower [2022-11-03 04:11:29,778 INFO L138 BoogieDeclarations]: Found implementation of procedure nls_tolower [2022-11-03 04:11:29,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 04:11:29,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 04:11:29,779 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-03 04:11:29,779 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-03 04:11:29,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_open_mutex_of_ncp_inode_info [2022-11-03 04:11:29,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_open_mutex_of_ncp_inode_info [2022-11-03 04:11:29,779 INFO L130 BoogieDeclarations]: Found specification of procedure unlock_page [2022-11-03 04:11:29,780 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock_page [2022-11-03 04:11:29,780 INFO L130 BoogieDeclarations]: Found specification of procedure __kuid_val [2022-11-03 04:11:29,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __kuid_val [2022-11-03 04:11:29,780 INFO L130 BoogieDeclarations]: Found specification of procedure dir_emit [2022-11-03 04:11:29,780 INFO L138 BoogieDeclarations]: Found implementation of procedure dir_emit [2022-11-03 04:11:29,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 04:11:29,780 INFO L130 BoogieDeclarations]: Found specification of procedure release_sock [2022-11-03 04:11:29,780 INFO L138 BoogieDeclarations]: Found implementation of procedure release_sock [2022-11-03 04:11:29,780 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2022-11-03 04:11:29,781 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2022-11-03 04:11:29,781 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-03 04:11:29,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_146 [2022-11-03 04:11:29,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_146 [2022-11-03 04:11:29,781 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_rmdir [2022-11-03 04:11:29,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_rmdir [2022-11-03 04:11:29,781 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-11-03 04:11:29,781 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-11-03 04:11:29,782 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_file_read [2022-11-03 04:11:29,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_file_read [2022-11-03 04:11:29,782 INFO L130 BoogieDeclarations]: Found specification of procedure d_instantiate [2022-11-03 04:11:29,782 INFO L138 BoogieDeclarations]: Found implementation of procedure d_instantiate [2022-11-03 04:11:29,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_i_mutex_of_inode [2022-11-03 04:11:29,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_i_mutex_of_inode [2022-11-03 04:11:29,782 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_compat_ioctl [2022-11-03 04:11:29,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_compat_ioctl [2022-11-03 04:11:29,783 INFO L130 BoogieDeclarations]: Found specification of procedure WSET_LH [2022-11-03 04:11:29,783 INFO L138 BoogieDeclarations]: Found implementation of procedure WSET_LH [2022-11-03 04:11:29,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 04:11:29,783 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 04:11:29,783 INFO L130 BoogieDeclarations]: Found specification of procedure setattr_copy [2022-11-03 04:11:29,783 INFO L138 BoogieDeclarations]: Found implementation of procedure setattr_copy [2022-11-03 04:11:29,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-11-03 04:11:29,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-11-03 04:11:29,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_for_read_section [2022-11-03 04:11:29,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_for_read_section [2022-11-03 04:11:29,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-11-03 04:11:29,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-11-03 04:11:29,784 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_reply_data [2022-11-03 04:11:29,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_reply_data [2022-11-03 04:11:29,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 04:11:29,784 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 04:11:29,784 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 04:11:29,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-03 04:11:29,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-03 04:11:29,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 04:11:29,785 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-11-03 04:11:29,785 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-11-03 04:11:29,786 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_d_prune [2022-11-03 04:11:29,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_d_prune [2022-11-03 04:11:29,786 INFO L130 BoogieDeclarations]: Found specification of procedure lock_sock [2022-11-03 04:11:29,786 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_sock [2022-11-03 04:11:29,786 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_byte [2022-11-03 04:11:29,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_byte [2022-11-03 04:11:29,786 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_init_header [2022-11-03 04:11:29,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_init_header [2022-11-03 04:11:29,787 INFO L130 BoogieDeclarations]: Found specification of procedure pagecache_get_page [2022-11-03 04:11:29,787 INFO L138 BoogieDeclarations]: Found implementation of procedure pagecache_get_page [2022-11-03 04:11:29,787 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_mem [2022-11-03 04:11:29,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_mem [2022-11-03 04:11:29,787 INFO L130 BoogieDeclarations]: Found specification of procedure kill_anon_super [2022-11-03 04:11:29,787 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_anon_super [2022-11-03 04:11:29,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_root_setup_lock_of_ncp_server [2022-11-03 04:11:29,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_root_setup_lock_of_ncp_server [2022-11-03 04:11:29,788 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_is_server_root [2022-11-03 04:11:29,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_is_server_root [2022-11-03 04:11:29,788 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_is_nfs_extras [2022-11-03 04:11:29,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_is_nfs_extras [2022-11-03 04:11:29,788 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_release [2022-11-03 04:11:29,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_release [2022-11-03 04:11:29,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-03 04:11:29,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-03 04:11:29,789 INFO L130 BoogieDeclarations]: Found specification of procedure ncpdgram_send [2022-11-03 04:11:29,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ncpdgram_send [2022-11-03 04:11:29,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-11-03 04:11:29,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-11-03 04:11:29,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2022-11-03 04:11:29,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2022-11-03 04:11:29,790 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_inode_close [2022-11-03 04:11:29,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_inode_close [2022-11-03 04:11:29,791 INFO L130 BoogieDeclarations]: Found specification of procedure NCP_FINFO [2022-11-03 04:11:29,791 INFO L138 BoogieDeclarations]: Found implementation of procedure NCP_FINFO [2022-11-03 04:11:29,791 INFO L130 BoogieDeclarations]: Found specification of procedure ncp__vol2io [2022-11-03 04:11:29,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp__vol2io [2022-11-03 04:11:29,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_creq_mutex_of_NOT_ARG_SIGN [2022-11-03 04:11:29,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_creq_mutex_of_NOT_ARG_SIGN [2022-11-03 04:11:29,791 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_RenameNSEntry [2022-11-03 04:11:29,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_RenameNSEntry [2022-11-03 04:11:29,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_i_mutex_of_inode [2022-11-03 04:11:29,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_i_mutex_of_inode [2022-11-03 04:11:29,792 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be16 [2022-11-03 04:11:29,792 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be16 [2022-11-03 04:11:29,792 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_notify_change [2022-11-03 04:11:29,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_notify_change [2022-11-03 04:11:29,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_75 [2022-11-03 04:11:29,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_75 [2022-11-03 04:11:29,792 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_reply_dword [2022-11-03 04:11:29,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_reply_dword [2022-11-03 04:11:29,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-03 04:11:29,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-03 04:11:29,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 04:11:29,793 INFO L130 BoogieDeclarations]: Found specification of procedure mark_inode_dirty [2022-11-03 04:11:29,793 INFO L138 BoogieDeclarations]: Found implementation of procedure mark_inode_dirty [2022-11-03 04:11:29,793 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_update_inode [2022-11-03 04:11:29,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_update_inode [2022-11-03 04:11:29,794 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_del_file_or_subdir [2022-11-03 04:11:29,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_del_file_or_subdir [2022-11-03 04:11:29,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 04:11:29,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 04:11:29,794 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_create_new [2022-11-03 04:11:29,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_create_new [2022-11-03 04:11:29,794 INFO L130 BoogieDeclarations]: Found specification of procedure __kgid_val [2022-11-03 04:11:29,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __kgid_val [2022-11-03 04:11:29,795 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-03 04:11:29,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-03 04:11:29,795 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_init_request [2022-11-03 04:11:29,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_init_request [2022-11-03 04:11:29,795 INFO L130 BoogieDeclarations]: Found specification of procedure PageUptodate [2022-11-03 04:11:29,795 INFO L138 BoogieDeclarations]: Found implementation of procedure PageUptodate [2022-11-03 04:11:29,795 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-03 04:11:29,795 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-03 04:11:29,795 INFO L130 BoogieDeclarations]: Found specification of procedure kunmap [2022-11-03 04:11:29,796 INFO L138 BoogieDeclarations]: Found implementation of procedure kunmap [2022-11-03 04:11:29,796 INFO L130 BoogieDeclarations]: Found specification of procedure NCP_SBP [2022-11-03 04:11:29,796 INFO L138 BoogieDeclarations]: Found implementation of procedure NCP_SBP [2022-11-03 04:11:29,796 INFO L130 BoogieDeclarations]: Found specification of procedure memdup_user [2022-11-03 04:11:29,796 INFO L138 BoogieDeclarations]: Found implementation of procedure memdup_user [2022-11-03 04:11:29,796 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_hash_dentry [2022-11-03 04:11:29,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_hash_dentry [2022-11-03 04:11:29,796 INFO L130 BoogieDeclarations]: Found specification of procedure load_nls_default [2022-11-03 04:11:29,797 INFO L138 BoogieDeclarations]: Found implementation of procedure load_nls_default [2022-11-03 04:11:29,797 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-03 04:11:29,797 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-03 04:11:29,797 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_open_create_file_or_subdir [2022-11-03 04:11:29,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_open_create_file_or_subdir [2022-11-03 04:11:29,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-11-03 04:11:29,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-11-03 04:11:29,798 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-03 04:11:29,798 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-03 04:11:29,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 04:11:29,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 04:11:29,798 INFO L130 BoogieDeclarations]: Found specification of procedure WVAL_LH___0 [2022-11-03 04:11:29,798 INFO L138 BoogieDeclarations]: Found implementation of procedure WVAL_LH___0 [2022-11-03 04:11:29,799 INFO L130 BoogieDeclarations]: Found specification of procedure d_rehash [2022-11-03 04:11:29,799 INFO L138 BoogieDeclarations]: Found implementation of procedure d_rehash [2022-11-03 04:11:29,799 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_evict_inode [2022-11-03 04:11:29,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_evict_inode [2022-11-03 04:11:29,799 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_show_options [2022-11-03 04:11:29,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_show_options [2022-11-03 04:11:29,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-11-03 04:11:29,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-11-03 04:11:29,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-11-03 04:11:29,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-11-03 04:11:29,800 INFO L130 BoogieDeclarations]: Found specification of procedure generic_file_llseek [2022-11-03 04:11:29,800 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_file_llseek [2022-11-03 04:11:29,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_before_release_sock [2022-11-03 04:11:29,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_before_release_sock [2022-11-03 04:11:29,801 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_reply_be16 [2022-11-03 04:11:29,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_reply_be16 [2022-11-03 04:11:29,801 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_make_closed [2022-11-03 04:11:29,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_make_closed [2022-11-03 04:11:29,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 04:11:29,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 04:11:29,802 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_del_file_or_subdir2 [2022-11-03 04:11:29,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_del_file_or_subdir2 [2022-11-03 04:11:29,802 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_modify_nfs_info [2022-11-03 04:11:29,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_modify_nfs_info [2022-11-03 04:11:29,802 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_case_sensitive [2022-11-03 04:11:29,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_case_sensitive [2022-11-03 04:11:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 04:11:29,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 04:11:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-11-03 04:11:29,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-11-03 04:11:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_inodecache [2022-11-03 04:11:29,803 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_inodecache [2022-11-03 04:11:29,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 04:11:29,804 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~~loff_t~0~X~~u64~0~X~int~TO~int [2022-11-03 04:11:29,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~~loff_t~0~X~~u64~0~X~int~TO~int [2022-11-03 04:11:29,804 INFO L130 BoogieDeclarations]: Found specification of procedure __ncp_abort_request [2022-11-03 04:11:29,804 INFO L138 BoogieDeclarations]: Found implementation of procedure __ncp_abort_request [2022-11-03 04:11:29,804 INFO L130 BoogieDeclarations]: Found specification of procedure from_kuid_munged [2022-11-03 04:11:29,805 INFO L138 BoogieDeclarations]: Found implementation of procedure from_kuid_munged [2022-11-03 04:11:29,805 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_unaligned_access_size [2022-11-03 04:11:29,805 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_word [2022-11-03 04:11:29,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_word [2022-11-03 04:11:29,805 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_dword_lh [2022-11-03 04:11:29,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_dword_lh [2022-11-03 04:11:29,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 04:11:29,806 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_do_request [2022-11-03 04:11:29,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_do_request [2022-11-03 04:11:29,806 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-03 04:11:29,806 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-03 04:11:29,806 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_inode_close___3 [2022-11-03 04:11:29,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_inode_close___3 [2022-11-03 04:11:29,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 04:11:29,807 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_date_unix2dos [2022-11-03 04:11:29,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_date_unix2dos [2022-11-03 04:11:29,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-11-03 04:11:29,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-11-03 04:11:29,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-03 04:11:29,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-03 04:11:29,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 04:11:29,808 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 04:11:29,808 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_ren_or_mov_file_or_subdir [2022-11-03 04:11:29,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_ren_or_mov_file_or_subdir [2022-11-03 04:11:29,808 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-11-03 04:11:29,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-11-03 04:11:29,809 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_destroy [2022-11-03 04:11:29,809 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_destroy [2022-11-03 04:11:29,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_creq_mutex_of_NOT_ARG_SIGN [2022-11-03 04:11:29,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_creq_mutex_of_NOT_ARG_SIGN [2022-11-03 04:11:29,809 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_request2 [2022-11-03 04:11:29,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_request2 [2022-11-03 04:11:29,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-03 04:11:29,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-03 04:11:29,810 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_init_request_s [2022-11-03 04:11:29,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_init_request_s [2022-11-03 04:11:29,810 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-03 04:11:29,810 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-03 04:11:29,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-11-03 04:11:29,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-11-03 04:11:29,811 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_lock_server [2022-11-03 04:11:29,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_lock_server [2022-11-03 04:11:29,811 INFO L130 BoogieDeclarations]: Found specification of procedure DSET_LH [2022-11-03 04:11:29,811 INFO L138 BoogieDeclarations]: Found implementation of procedure DSET_LH [2022-11-03 04:11:29,811 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_close_file [2022-11-03 04:11:29,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_close_file [2022-11-03 04:11:29,812 INFO L130 BoogieDeclarations]: Found specification of procedure nwsign [2022-11-03 04:11:29,812 INFO L138 BoogieDeclarations]: Found implementation of procedure nwsign [2022-11-03 04:11:29,812 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2022-11-03 04:11:29,812 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2022-11-03 04:11:29,812 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_update_known_namespace [2022-11-03 04:11:29,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_update_known_namespace [2022-11-03 04:11:29,813 INFO L130 BoogieDeclarations]: Found specification of procedure load_nls [2022-11-03 04:11:29,813 INFO L138 BoogieDeclarations]: Found implementation of procedure load_nls [2022-11-03 04:11:29,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_net_sock__double_release [2022-11-03 04:11:29,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_net_sock__double_release [2022-11-03 04:11:29,813 INFO L130 BoogieDeclarations]: Found specification of procedure DVAL_LH___0 [2022-11-03 04:11:29,814 INFO L138 BoogieDeclarations]: Found implementation of procedure DVAL_LH___0 [2022-11-03 04:11:29,814 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_readdir [2022-11-03 04:11:29,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_readdir [2022-11-03 04:11:29,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-11-03 04:11:29,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-11-03 04:11:29,814 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2022-11-03 04:11:29,814 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2022-11-03 04:11:29,815 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_read_kernel [2022-11-03 04:11:29,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_read_kernel [2022-11-03 04:11:29,815 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-03 04:11:29,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-03 04:11:29,815 INFO L130 BoogieDeclarations]: Found specification of procedure rol32 [2022-11-03 04:11:29,815 INFO L138 BoogieDeclarations]: Found implementation of procedure rol32 [2022-11-03 04:11:29,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 04:11:29,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 04:11:29,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 04:11:29,816 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2022-11-03 04:11:29,816 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2022-11-03 04:11:29,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-03 04:11:29,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-03 04:11:29,817 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_disconnect [2022-11-03 04:11:29,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_disconnect [2022-11-03 04:11:29,817 INFO L130 BoogieDeclarations]: Found specification of procedure inode_permission [2022-11-03 04:11:29,817 INFO L138 BoogieDeclarations]: Found implementation of procedure inode_permission [2022-11-03 04:11:29,817 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_extract_file_info [2022-11-03 04:11:29,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_extract_file_info [2022-11-03 04:11:29,818 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_modify_file_or_subdir_dos_info_path [2022-11-03 04:11:29,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_modify_file_or_subdir_dos_info_path [2022-11-03 04:11:29,818 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_put_super [2022-11-03 04:11:29,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_put_super [2022-11-03 04:11:29,818 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_lookup_volume [2022-11-03 04:11:29,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_lookup_volume [2022-11-03 04:11:29,819 INFO L130 BoogieDeclarations]: Found specification of procedure __ncptcp_try_send [2022-11-03 04:11:29,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __ncptcp_try_send [2022-11-03 04:11:29,819 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2022-11-03 04:11:29,819 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2022-11-03 04:11:29,819 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-03 04:11:29,819 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-03 04:11:29,820 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_mmap [2022-11-03 04:11:29,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_mmap [2022-11-03 04:11:29,820 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_be16 [2022-11-03 04:11:29,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_be16 [2022-11-03 04:11:29,820 INFO L130 BoogieDeclarations]: Found specification of procedure do_send [2022-11-03 04:11:29,820 INFO L138 BoogieDeclarations]: Found implementation of procedure do_send [2022-11-03 04:11:29,821 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2022-11-03 04:11:29,821 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2022-11-03 04:11:29,821 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_pstring [2022-11-03 04:11:29,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_pstring [2022-11-03 04:11:29,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_root_setup_lock_of_ncp_server [2022-11-03 04:11:29,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_root_setup_lock_of_ncp_server [2022-11-03 04:11:29,822 INFO L130 BoogieDeclarations]: Found specification of procedure generic_read_dir [2022-11-03 04:11:29,822 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_read_dir [2022-11-03 04:11:29,822 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_obtain_mtime [2022-11-03 04:11:29,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_obtain_mtime [2022-11-03 04:11:29,822 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_unlink [2022-11-03 04:11:29,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_unlink [2022-11-03 04:11:29,822 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_dword [2022-11-03 04:11:29,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_dword [2022-11-03 04:11:29,823 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2022-11-03 04:11:29,823 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2022-11-03 04:11:29,823 INFO L130 BoogieDeclarations]: Found specification of procedure file_accessed [2022-11-03 04:11:29,823 INFO L138 BoogieDeclarations]: Found implementation of procedure file_accessed [2022-11-03 04:11:29,823 INFO L130 BoogieDeclarations]: Found specification of procedure put_pid [2022-11-03 04:11:29,824 INFO L138 BoogieDeclarations]: Found implementation of procedure put_pid [2022-11-03 04:11:29,824 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_age_dentry [2022-11-03 04:11:29,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_age_dentry [2022-11-03 04:11:29,824 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_handle_path [2022-11-03 04:11:29,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_handle_path [2022-11-03 04:11:29,824 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2022-11-03 04:11:29,825 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2022-11-03 04:11:29,825 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2022-11-03 04:11:29,825 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2022-11-03 04:11:29,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 04:11:29,825 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-03 04:11:29,825 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-03 04:11:29,825 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-03 04:11:29,826 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-03 04:11:29,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-03 04:11:29,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-03 04:11:29,826 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_iget [2022-11-03 04:11:29,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_iget [2022-11-03 04:11:29,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 04:11:29,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 04:11:29,827 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_fill_cache [2022-11-03 04:11:29,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_fill_cache [2022-11-03 04:11:29,827 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_stop_tasks [2022-11-03 04:11:29,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_stop_tasks [2022-11-03 04:11:29,827 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_update_dirent [2022-11-03 04:11:29,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_update_dirent [2022-11-03 04:11:29,828 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_instantiate [2022-11-03 04:11:29,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_instantiate [2022-11-03 04:11:29,828 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_single_volume [2022-11-03 04:11:29,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_single_volume [2022-11-03 04:11:29,828 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_symlink_readpage [2022-11-03 04:11:29,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_symlink_readpage [2022-11-03 04:11:29,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-03 04:11:29,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-03 04:11:29,829 INFO L130 BoogieDeclarations]: Found specification of procedure DVAL_LH [2022-11-03 04:11:29,829 INFO L138 BoogieDeclarations]: Found implementation of procedure DVAL_LH [2022-11-03 04:11:29,829 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-03 04:11:29,829 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-03 04:11:29,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_74 [2022-11-03 04:11:29,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_74 [2022-11-03 04:11:29,830 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_reply_dword_lh [2022-11-03 04:11:29,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_reply_dword_lh [2022-11-03 04:11:29,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-03 04:11:29,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-03 04:11:29,831 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 04:11:29,831 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 04:11:29,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_siglock_of_sighand_struct [2022-11-03 04:11:29,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_siglock_of_sighand_struct [2022-11-03 04:11:29,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-03 04:11:29,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-03 04:11:29,831 INFO L130 BoogieDeclarations]: Found specification of procedure SetPageUptodate [2022-11-03 04:11:29,832 INFO L138 BoogieDeclarations]: Found implementation of procedure SetPageUptodate [2022-11-03 04:11:29,832 INFO L130 BoogieDeclarations]: Found specification of procedure uid_eq [2022-11-03 04:11:29,832 INFO L138 BoogieDeclarations]: Found implementation of procedure uid_eq [2022-11-03 04:11:29,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-03 04:11:29,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-03 04:11:29,832 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_req_put [2022-11-03 04:11:29,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_req_put [2022-11-03 04:11:29,833 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-03 04:11:29,833 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-03 04:11:29,833 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-03 04:11:29,833 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-03 04:11:29,833 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_conn_valid [2022-11-03 04:11:29,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_conn_valid [2022-11-03 04:11:29,834 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-03 04:11:29,834 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-03 04:11:29,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 04:11:29,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 04:11:29,834 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_be32 [2022-11-03 04:11:29,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_be32 [2022-11-03 04:11:29,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_open_mutex_of_ncp_inode_info [2022-11-03 04:11:29,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_open_mutex_of_ncp_inode_info [2022-11-03 04:11:29,835 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_finish_request [2022-11-03 04:11:29,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_finish_request [2022-11-03 04:11:29,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-03 04:11:29,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-03 04:11:29,835 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_update_inode2 [2022-11-03 04:11:29,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_update_inode2 [2022-11-03 04:11:29,836 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-03 04:11:29,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-03 04:11:29,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 04:11:29,836 INFO L130 BoogieDeclarations]: Found specification of procedure gid_eq [2022-11-03 04:11:29,836 INFO L138 BoogieDeclarations]: Found implementation of procedure gid_eq [2022-11-03 04:11:29,837 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-03 04:11:29,837 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_unlock_server [2022-11-03 04:11:29,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_unlock_server [2022-11-03 04:11:29,837 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le64 [2022-11-03 04:11:29,837 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le64 [2022-11-03 04:11:31,547 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 04:11:31,552 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 04:11:31,803 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 04:11:46,328 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 04:11:49,143 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 04:11:49,144 INFO L300 CfgBuilder]: Removed 17 assume(true) statements. [2022-11-03 04:11:49,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:11:49 BoogieIcfgContainer [2022-11-03 04:11:49,152 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 04:11:49,155 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 04:11:49,155 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 04:11:49,159 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 04:11:49,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:11:17" (1/3) ... [2022-11-03 04:11:49,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2befec02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:11:49, skipping insertion in model container [2022-11-03 04:11:49,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:28" (2/3) ... [2022-11-03 04:11:49,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2befec02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:11:49, skipping insertion in model container [2022-11-03 04:11:49,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:11:49" (3/3) ... [2022-11-03 04:11:49,164 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i [2022-11-03 04:11:49,183 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 04:11:49,184 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2022-11-03 04:11:49,320 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 04:11:49,328 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;@4d143ef2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 04:11:49,328 INFO L358 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2022-11-03 04:11:49,342 INFO L276 IsEmpty]: Start isEmpty. Operand has 3581 states, 2044 states have (on average 1.3087084148727985) internal successors, (2675), 2136 states have internal predecessors, (2675), 1261 states have call successors, (1261), 246 states have call predecessors, (1261), 245 states have return successors, (1252), 1230 states have call predecessors, (1252), 1252 states have call successors, (1252) [2022-11-03 04:11:49,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-03 04:11:49,351 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:11:49,352 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 04:11:49,352 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_for_read_sectionErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-03 04:11:49,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:11:49,358 INFO L85 PathProgramCache]: Analyzing trace with hash -525218347, now seen corresponding path program 1 times [2022-11-03 04:11:49,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:11:49,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427151408] [2022-11-03 04:11:49,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:11:49,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:11:49,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:11:50,462 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-03 04:11:50,462 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:11:50,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427151408] [2022-11-03 04:11:50,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427151408] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:11:50,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:11:50,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:11:50,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423642280] [2022-11-03 04:11:50,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:11:50,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:11:50,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:11:50,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:11:50,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:11:50,514 INFO L87 Difference]: Start difference. First operand has 3581 states, 2044 states have (on average 1.3087084148727985) internal successors, (2675), 2136 states have internal predecessors, (2675), 1261 states have call successors, (1261), 246 states have call predecessors, (1261), 245 states have return successors, (1252), 1230 states have call predecessors, (1252), 1252 states have call successors, (1252) Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-03 04:11:52,989 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 [] [2022-11-03 04:12:00,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:12:03,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:12:03,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:12:03,432 INFO L93 Difference]: Finished difference Result 7131 states and 10698 transitions. [2022-11-03 04:12:03,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:12:03,435 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 35 [2022-11-03 04:12:03,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:12:03,478 INFO L225 Difference]: With dead ends: 7131 [2022-11-03 04:12:03,479 INFO L226 Difference]: Without dead ends: 3554 [2022-11-03 04:12:03,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:12:03,512 INFO L413 NwaCegarLoop]: 4610 mSDtfsCounter, 5082 mSDsluCounter, 5102 mSDsCounter, 0 mSdLazyCounter, 957 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5087 SdHoareTripleChecker+Valid, 9234 SdHoareTripleChecker+Invalid, 960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 957 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:12:03,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5087 Valid, 9234 Invalid, 960 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 957 Invalid, 3 Unknown, 0 Unchecked, 12.4s Time] [2022-11-03 04:12:03,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3554 states. [2022-11-03 04:12:03,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3554 to 3551. [2022-11-03 04:12:03,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3551 states, 2032 states have (on average 1.2854330708661417) internal successors, (2612), 2108 states have internal predecessors, (2612), 1240 states have call successors, (1240), 247 states have call predecessors, (1240), 246 states have return successors, (1238), 1223 states have call predecessors, (1238), 1238 states have call successors, (1238) [2022-11-03 04:12:04,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3551 states to 3551 states and 5090 transitions. [2022-11-03 04:12:04,042 INFO L78 Accepts]: Start accepts. Automaton has 3551 states and 5090 transitions. Word has length 35 [2022-11-03 04:12:04,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:12:04,045 INFO L495 AbstractCegarLoop]: Abstraction has 3551 states and 5090 transitions. [2022-11-03 04:12:04,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-03 04:12:04,045 INFO L276 IsEmpty]: Start isEmpty. Operand 3551 states and 5090 transitions. [2022-11-03 04:12:04,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-03 04:12:04,048 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:12:04,048 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 04:12:04,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 04:12:04,049 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_for_read_sectionErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-03 04:12:04,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:12:04,050 INFO L85 PathProgramCache]: Analyzing trace with hash 2080798498, now seen corresponding path program 1 times [2022-11-03 04:12:04,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:12:04,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460193808] [2022-11-03 04:12:04,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:12:04,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:12:04,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:12:04,688 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-03 04:12:04,688 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:12:04,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460193808] [2022-11-03 04:12:04,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460193808] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:12:04,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:12:04,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:12:04,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538199942] [2022-11-03 04:12:04,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:12:04,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:12:04,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:12:04,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:12:04,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:12:04,692 INFO L87 Difference]: Start difference. First operand 3551 states and 5090 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-03 04:12:07,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:12:14,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:12:16,503 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 [] [2022-11-03 04:12:16,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:12:16,581 INFO L93 Difference]: Finished difference Result 3553 states and 5093 transitions. [2022-11-03 04:12:16,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:12:16,581 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 37 [2022-11-03 04:12:16,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:12:16,608 INFO L225 Difference]: With dead ends: 3553 [2022-11-03 04:12:16,608 INFO L226 Difference]: Without dead ends: 3551 [2022-11-03 04:12:16,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:12:16,613 INFO L413 NwaCegarLoop]: 4582 mSDtfsCounter, 5046 mSDsluCounter, 5048 mSDsCounter, 0 mSdLazyCounter, 948 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5053 SdHoareTripleChecker+Valid, 9159 SdHoareTripleChecker+Invalid, 951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 948 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2022-11-03 04:12:16,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5053 Valid, 9159 Invalid, 951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 948 Invalid, 3 Unknown, 0 Unchecked, 11.6s Time] [2022-11-03 04:12:16,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3551 states. [2022-11-03 04:12:16,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3551 to 3549. [2022-11-03 04:12:16,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3549 states, 2031 states have (on average 1.2850812407680945) internal successors, (2610), 2106 states have internal predecessors, (2610), 1240 states have call successors, (1240), 247 states have call predecessors, (1240), 246 states have return successors, (1238), 1223 states have call predecessors, (1238), 1238 states have call successors, (1238) [2022-11-03 04:12:16,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3549 states to 3549 states and 5088 transitions. [2022-11-03 04:12:16,835 INFO L78 Accepts]: Start accepts. Automaton has 3549 states and 5088 transitions. Word has length 37 [2022-11-03 04:12:16,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:12:16,836 INFO L495 AbstractCegarLoop]: Abstraction has 3549 states and 5088 transitions. [2022-11-03 04:12:16,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-03 04:12:16,837 INFO L276 IsEmpty]: Start isEmpty. Operand 3549 states and 5088 transitions. [2022-11-03 04:12:16,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-03 04:12:16,844 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:12:16,845 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 04:12:16,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 04:12:16,846 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_for_read_sectionErr2ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-03 04:12:16,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:12:16,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1797732308, now seen corresponding path program 1 times [2022-11-03 04:12:16,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:12:16,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366102580] [2022-11-03 04:12:16,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:12:16,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:12:17,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:12:17,426 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-03 04:12:17,426 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:12:17,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366102580] [2022-11-03 04:12:17,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366102580] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:12:17,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:12:17,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:12:17,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148879645] [2022-11-03 04:12:17,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:12:17,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:12:17,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:12:17,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:12:17,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:12:17,428 INFO L87 Difference]: Start difference. First operand 3549 states and 5088 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-03 04:12:19,768 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 [] [2022-11-03 04:12:26,392 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 [] [2022-11-03 04:12:26,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:12:26,457 INFO L93 Difference]: Finished difference Result 3551 states and 5091 transitions. [2022-11-03 04:12:26,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:12:26,457 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 39 [2022-11-03 04:12:26,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:12:26,478 INFO L225 Difference]: With dead ends: 3551 [2022-11-03 04:12:26,478 INFO L226 Difference]: Without dead ends: 3549 [2022-11-03 04:12:26,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:12:26,482 INFO L413 NwaCegarLoop]: 4580 mSDtfsCounter, 5038 mSDsluCounter, 5050 mSDsCounter, 0 mSdLazyCounter, 950 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5045 SdHoareTripleChecker+Valid, 9158 SdHoareTripleChecker+Invalid, 952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 950 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2022-11-03 04:12:26,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5045 Valid, 9158 Invalid, 952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 950 Invalid, 2 Unknown, 0 Unchecked, 8.8s Time] [2022-11-03 04:12:26,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3549 states. [2022-11-03 04:12:26,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3549 to 3547. [2022-11-03 04:12:26,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3547 states, 2030 states have (on average 1.284729064039409) internal successors, (2608), 2104 states have internal predecessors, (2608), 1240 states have call successors, (1240), 247 states have call predecessors, (1240), 246 states have return successors, (1238), 1223 states have call predecessors, (1238), 1238 states have call successors, (1238) [2022-11-03 04:12:26,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3547 states to 3547 states and 5086 transitions. [2022-11-03 04:12:26,696 INFO L78 Accepts]: Start accepts. Automaton has 3547 states and 5086 transitions. Word has length 39 [2022-11-03 04:12:26,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:12:26,697 INFO L495 AbstractCegarLoop]: Abstraction has 3547 states and 5086 transitions. [2022-11-03 04:12:26,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-03 04:12:26,697 INFO L276 IsEmpty]: Start isEmpty. Operand 3547 states and 5086 transitions. [2022-11-03 04:12:26,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-03 04:12:26,699 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:12:26,699 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 04:12:26,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 04:12:26,699 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_for_read_sectionErr3ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-03 04:12:26,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:12:26,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1034358102, now seen corresponding path program 1 times [2022-11-03 04:12:26,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:12:26,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595324099] [2022-11-03 04:12:26,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:12:26,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:12:26,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:12:27,158 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-03 04:12:27,158 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:12:27,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595324099] [2022-11-03 04:12:27,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595324099] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:12:27,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:12:27,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:12:27,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490040619] [2022-11-03 04:12:27,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:12:27,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:12:27,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:12:27,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:12:27,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:12:27,176 INFO L87 Difference]: Start difference. First operand 3547 states and 5086 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-03 04:12:34,305 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 [] [2022-11-03 04:12:34,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:12:34,379 INFO L93 Difference]: Finished difference Result 3549 states and 5089 transitions. [2022-11-03 04:12:34,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:12:34,380 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 41 [2022-11-03 04:12:34,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:12:34,402 INFO L225 Difference]: With dead ends: 3549 [2022-11-03 04:12:34,402 INFO L226 Difference]: Without dead ends: 3547 [2022-11-03 04:12:34,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:12:34,405 INFO L413 NwaCegarLoop]: 4578 mSDtfsCounter, 5033 mSDsluCounter, 5053 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5038 SdHoareTripleChecker+Valid, 9157 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-03 04:12:34,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5038 Valid, 9157 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 953 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2022-11-03 04:12:34,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3547 states. [2022-11-03 04:12:34,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3547 to 3545. [2022-11-03 04:12:34,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3545 states, 2029 states have (on average 1.2843765401675702) internal successors, (2606), 2102 states have internal predecessors, (2606), 1240 states have call successors, (1240), 247 states have call predecessors, (1240), 246 states have return successors, (1238), 1223 states have call predecessors, (1238), 1238 states have call successors, (1238) [2022-11-03 04:12:34,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3545 states to 3545 states and 5084 transitions. [2022-11-03 04:12:34,652 INFO L78 Accepts]: Start accepts. Automaton has 3545 states and 5084 transitions. Word has length 41 [2022-11-03 04:12:34,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:12:34,653 INFO L495 AbstractCegarLoop]: Abstraction has 3545 states and 5084 transitions. [2022-11-03 04:12:34,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-03 04:12:34,653 INFO L276 IsEmpty]: Start isEmpty. Operand 3545 states and 5084 transitions. [2022-11-03 04:12:34,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-03 04:12:34,658 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:12:34,658 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:12:34,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 04:12:34,658 INFO L420 AbstractCegarLoop]: === Iteration 5 === 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 32 more)] === [2022-11-03 04:12:34,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:12:34,659 INFO L85 PathProgramCache]: Analyzing trace with hash -833602569, now seen corresponding path program 1 times [2022-11-03 04:12:34,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:12:34,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578958482] [2022-11-03 04:12:34,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:12:34,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:12:34,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:12:35,031 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 04:12:35,031 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:12:35,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578958482] [2022-11-03 04:12:35,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578958482] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:12:35,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:12:35,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:12:35,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494757563] [2022-11-03 04:12:35,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:12:35,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:12:35,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:12:35,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:12:35,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:12:35,033 INFO L87 Difference]: Start difference. First operand 3545 states and 5084 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-03 04:12:37,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:12:43,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:12:43,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:12:43,439 INFO L93 Difference]: Finished difference Result 3547 states and 5087 transitions. [2022-11-03 04:12:43,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:12:43,440 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 49 [2022-11-03 04:12:43,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:12:43,459 INFO L225 Difference]: With dead ends: 3547 [2022-11-03 04:12:43,459 INFO L226 Difference]: Without dead ends: 3545 [2022-11-03 04:12:43,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:12:43,462 INFO L413 NwaCegarLoop]: 4576 mSDtfsCounter, 5032 mSDsluCounter, 5051 mSDsCounter, 0 mSdLazyCounter, 951 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5038 SdHoareTripleChecker+Valid, 9153 SdHoareTripleChecker+Invalid, 953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 951 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:12:43,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5038 Valid, 9153 Invalid, 953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 951 Invalid, 2 Unknown, 0 Unchecked, 8.1s Time] [2022-11-03 04:12:43,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3545 states. [2022-11-03 04:12:43,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3545 to 3543. [2022-11-03 04:12:43,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3543 states, 2028 states have (on average 1.2840236686390532) internal successors, (2604), 2100 states have internal predecessors, (2604), 1240 states have call successors, (1240), 247 states have call predecessors, (1240), 246 states have return successors, (1238), 1223 states have call predecessors, (1238), 1238 states have call successors, (1238) [2022-11-03 04:12:43,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3543 states to 3543 states and 5082 transitions. [2022-11-03 04:12:43,713 INFO L78 Accepts]: Start accepts. Automaton has 3543 states and 5082 transitions. Word has length 49 [2022-11-03 04:12:43,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:12:43,713 INFO L495 AbstractCegarLoop]: Abstraction has 3543 states and 5082 transitions. [2022-11-03 04:12:43,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-03 04:12:43,714 INFO L276 IsEmpty]: Start isEmpty. Operand 3543 states and 5082 transitions. [2022-11-03 04:12:43,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-03 04:12:43,715 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:12:43,715 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:12:43,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 04:12:43,715 INFO L420 AbstractCegarLoop]: === Iteration 6 === 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 32 more)] === [2022-11-03 04:12:43,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:12:43,716 INFO L85 PathProgramCache]: Analyzing trace with hash -404712481, now seen corresponding path program 1 times [2022-11-03 04:12:43,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:12:43,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169447631] [2022-11-03 04:12:43,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:12:43,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:12:43,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:12:44,085 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 04:12:44,085 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:12:44,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169447631] [2022-11-03 04:12:44,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169447631] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:12:44,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:12:44,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:12:44,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953381096] [2022-11-03 04:12:44,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:12:44,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:12:44,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:12:44,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:12:44,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:12:44,088 INFO L87 Difference]: Start difference. First operand 3543 states and 5082 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-03 04:12:50,847 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 [] [2022-11-03 04:12:50,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:12:50,931 INFO L93 Difference]: Finished difference Result 3545 states and 5085 transitions. [2022-11-03 04:12:50,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:12:50,931 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (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 54 [2022-11-03 04:12:50,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:12:50,943 INFO L225 Difference]: With dead ends: 3545 [2022-11-03 04:12:50,943 INFO L226 Difference]: Without dead ends: 3543 [2022-11-03 04:12:50,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:12:50,946 INFO L413 NwaCegarLoop]: 4574 mSDtfsCounter, 5032 mSDsluCounter, 5050 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5036 SdHoareTripleChecker+Valid, 9149 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-11-03 04:12:50,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5036 Valid, 9149 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 953 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-11-03 04:12:50,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3543 states. [2022-11-03 04:12:51,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3543 to 3541. [2022-11-03 04:12:51,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3541 states, 2027 states have (on average 1.2836704489393191) internal successors, (2602), 2098 states have internal predecessors, (2602), 1240 states have call successors, (1240), 247 states have call predecessors, (1240), 246 states have return successors, (1238), 1223 states have call predecessors, (1238), 1238 states have call successors, (1238) [2022-11-03 04:12:51,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3541 states to 3541 states and 5080 transitions. [2022-11-03 04:12:51,212 INFO L78 Accepts]: Start accepts. Automaton has 3541 states and 5080 transitions. Word has length 54 [2022-11-03 04:12:51,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:12:51,214 INFO L495 AbstractCegarLoop]: Abstraction has 3541 states and 5080 transitions. [2022-11-03 04:12:51,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-03 04:12:51,214 INFO L276 IsEmpty]: Start isEmpty. Operand 3541 states and 5080 transitions. [2022-11-03 04:12:51,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-03 04:12:51,216 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:12:51,216 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:12:51,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 04:12:51,217 INFO L420 AbstractCegarLoop]: === Iteration 7 === 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 32 more)] === [2022-11-03 04:12:51,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:12:51,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1783224654, now seen corresponding path program 1 times [2022-11-03 04:12:51,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:12:51,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613205839] [2022-11-03 04:12:51,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:12:51,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:12:51,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:12:51,578 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 04:12:51,579 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:12:51,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613205839] [2022-11-03 04:12:51,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613205839] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:12:51,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:12:51,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:12:51,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175202498] [2022-11-03 04:12:51,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:12:51,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:12:51,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:12:51,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:12:51,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:12:51,582 INFO L87 Difference]: Start difference. First operand 3541 states and 5080 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-03 04:12:58,503 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 [] [2022-11-03 04:13:00,799 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 [] [2022-11-03 04:13:00,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:13:00,866 INFO L93 Difference]: Finished difference Result 3546 states and 5087 transitions. [2022-11-03 04:13:00,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:13:00,867 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (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 59 [2022-11-03 04:13:00,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:13:00,883 INFO L225 Difference]: With dead ends: 3546 [2022-11-03 04:13:00,883 INFO L226 Difference]: Without dead ends: 3544 [2022-11-03 04:13:00,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:13:00,886 INFO L413 NwaCegarLoop]: 4575 mSDtfsCounter, 5028 mSDsluCounter, 5078 mSDsCounter, 0 mSdLazyCounter, 956 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5034 SdHoareTripleChecker+Valid, 9174 SdHoareTripleChecker+Invalid, 958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 956 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2022-11-03 04:13:00,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5034 Valid, 9174 Invalid, 958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 956 Invalid, 2 Unknown, 0 Unchecked, 8.9s Time] [2022-11-03 04:13:00,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3544 states. [2022-11-03 04:13:01,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3544 to 3539. [2022-11-03 04:13:01,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3539 states, 2026 states have (on average 1.2833168805528135) internal successors, (2600), 2096 states have internal predecessors, (2600), 1240 states have call successors, (1240), 247 states have call predecessors, (1240), 246 states have return successors, (1238), 1223 states have call predecessors, (1238), 1238 states have call successors, (1238) [2022-11-03 04:13:01,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3539 states to 3539 states and 5078 transitions. [2022-11-03 04:13:01,164 INFO L78 Accepts]: Start accepts. Automaton has 3539 states and 5078 transitions. Word has length 59 [2022-11-03 04:13:01,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:13:01,164 INFO L495 AbstractCegarLoop]: Abstraction has 3539 states and 5078 transitions. [2022-11-03 04:13:01,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-03 04:13:01,165 INFO L276 IsEmpty]: Start isEmpty. Operand 3539 states and 5078 transitions. [2022-11-03 04:13:01,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-03 04:13:01,166 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:13:01,166 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:13:01,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 04:13:01,166 INFO L420 AbstractCegarLoop]: === Iteration 8 === 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 32 more)] === [2022-11-03 04:13:01,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:13:01,167 INFO L85 PathProgramCache]: Analyzing trace with hash -374888497, now seen corresponding path program 1 times [2022-11-03 04:13:01,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:13:01,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870077015] [2022-11-03 04:13:01,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:13:01,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:13:01,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:13:01,505 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 04:13:01,505 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:13:01,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870077015] [2022-11-03 04:13:01,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870077015] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:13:01,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:13:01,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:13:01,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251195890] [2022-11-03 04:13:01,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:13:01,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:13:01,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:13:01,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:13:01,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:13:01,508 INFO L87 Difference]: Start difference. First operand 3539 states and 5078 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 04:13:03,823 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 [] [2022-11-03 04:13:10,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:13:13,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:13:13,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:13:13,221 INFO L93 Difference]: Finished difference Result 3544 states and 5085 transitions. [2022-11-03 04:13:13,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:13:13,222 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (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 64 [2022-11-03 04:13:13,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:13:13,239 INFO L225 Difference]: With dead ends: 3544 [2022-11-03 04:13:13,239 INFO L226 Difference]: Without dead ends: 3542 [2022-11-03 04:13:13,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:13:13,242 INFO L413 NwaCegarLoop]: 4573 mSDtfsCounter, 5022 mSDsluCounter, 5075 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5030 SdHoareTripleChecker+Valid, 9170 SdHoareTripleChecker+Invalid, 957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:13:13,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5030 Valid, 9170 Invalid, 957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 954 Invalid, 3 Unknown, 0 Unchecked, 11.4s Time] [2022-11-03 04:13:13,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3542 states. [2022-11-03 04:13:13,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3542 to 3537. [2022-11-03 04:13:13,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3537 states, 2025 states have (on average 1.2829629629629629) internal successors, (2598), 2094 states have internal predecessors, (2598), 1240 states have call successors, (1240), 247 states have call predecessors, (1240), 246 states have return successors, (1238), 1223 states have call predecessors, (1238), 1238 states have call successors, (1238) [2022-11-03 04:13:13,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3537 states to 3537 states and 5076 transitions. [2022-11-03 04:13:13,535 INFO L78 Accepts]: Start accepts. Automaton has 3537 states and 5076 transitions. Word has length 64 [2022-11-03 04:13:13,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:13:13,536 INFO L495 AbstractCegarLoop]: Abstraction has 3537 states and 5076 transitions. [2022-11-03 04:13:13,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 04:13:13,536 INFO L276 IsEmpty]: Start isEmpty. Operand 3537 states and 5076 transitions. [2022-11-03 04:13:13,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-03 04:13:13,537 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:13:13,538 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] [2022-11-03 04:13:13,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 04:13:13,538 INFO L420 AbstractCegarLoop]: === Iteration 9 === 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 32 more)] === [2022-11-03 04:13:13,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:13:13,538 INFO L85 PathProgramCache]: Analyzing trace with hash -13636979, now seen corresponding path program 1 times [2022-11-03 04:13:13,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:13:13,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355528730] [2022-11-03 04:13:13,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:13:13,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:13:13,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:13:14,474 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:13:14,474 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:13:14,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355528730] [2022-11-03 04:13:14,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355528730] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:13:14,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:13:14,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 04:13:14,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764099172] [2022-11-03 04:13:14,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:13:14,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:13:14,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:13:14,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:13:14,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:13:14,477 INFO L87 Difference]: Start difference. First operand 3537 states and 5076 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-03 04:13:26,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:13:28,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:13:31,324 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 [] [2022-11-03 04:13:31,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:13:31,460 INFO L93 Difference]: Finished difference Result 6252 states and 9176 transitions. [2022-11-03 04:13:31,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:13:31,461 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 67 [2022-11-03 04:13:31,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:13:31,499 INFO L225 Difference]: With dead ends: 6252 [2022-11-03 04:13:31,499 INFO L226 Difference]: Without dead ends: 6250 [2022-11-03 04:13:31,502 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 [2022-11-03 04:13:31,503 INFO L413 NwaCegarLoop]: 5967 mSDtfsCounter, 3958 mSDsluCounter, 18169 mSDsCounter, 0 mSdLazyCounter, 2113 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3966 SdHoareTripleChecker+Valid, 22579 SdHoareTripleChecker+Invalid, 2119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2113 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:13:31,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3966 Valid, 22579 Invalid, 2119 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 2113 Invalid, 3 Unknown, 0 Unchecked, 16.3s Time] [2022-11-03 04:13:31,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6250 states. [2022-11-03 04:13:32,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6250 to 6073. [2022-11-03 04:13:32,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6073 states, 3580 states have (on average 1.2958100558659218) internal successors, (4639), 3679 states have internal predecessors, (4639), 2051 states have call successors, (2051), 420 states have call predecessors, (2051), 416 states have return successors, (2298), 2026 states have call predecessors, (2298), 2049 states have call successors, (2298) [2022-11-03 04:13:32,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6073 states to 6073 states and 8988 transitions. [2022-11-03 04:13:32,118 INFO L78 Accepts]: Start accepts. Automaton has 6073 states and 8988 transitions. Word has length 67 [2022-11-03 04:13:32,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:13:32,119 INFO L495 AbstractCegarLoop]: Abstraction has 6073 states and 8988 transitions. [2022-11-03 04:13:32,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-03 04:13:32,120 INFO L276 IsEmpty]: Start isEmpty. Operand 6073 states and 8988 transitions. [2022-11-03 04:13:32,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-03 04:13:32,122 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:13:32,123 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:13:32,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 04:13:32,123 INFO L420 AbstractCegarLoop]: === Iteration 10 === 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 32 more)] === [2022-11-03 04:13:32,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:13:32,123 INFO L85 PathProgramCache]: Analyzing trace with hash -359530288, now seen corresponding path program 1 times [2022-11-03 04:13:32,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:13:32,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465889049] [2022-11-03 04:13:32,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:13:32,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:13:32,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:13:32,460 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 04:13:32,460 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:13:32,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465889049] [2022-11-03 04:13:32,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465889049] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:13:32,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:13:32,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:13:32,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163702973] [2022-11-03 04:13:32,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:13:32,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:13:32,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:13:32,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:13:32,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:13:32,463 INFO L87 Difference]: Start difference. First operand 6073 states and 8988 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-03 04:13:39,327 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 [] [2022-11-03 04:13:41,616 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 [] [2022-11-03 04:13:41,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:13:41,701 INFO L93 Difference]: Finished difference Result 6075 states and 8991 transitions. [2022-11-03 04:13:41,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:13:41,702 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (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 69 [2022-11-03 04:13:41,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:13:41,730 INFO L225 Difference]: With dead ends: 6075 [2022-11-03 04:13:41,730 INFO L226 Difference]: Without dead ends: 6073 [2022-11-03 04:13:41,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:13:41,735 INFO L413 NwaCegarLoop]: 4568 mSDtfsCounter, 5023 mSDsluCounter, 5044 mSDsCounter, 0 mSdLazyCounter, 952 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5027 SdHoareTripleChecker+Valid, 9137 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 952 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-11-03 04:13:41,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5027 Valid, 9137 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 952 Invalid, 2 Unknown, 0 Unchecked, 8.7s Time] [2022-11-03 04:13:41,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6073 states. [2022-11-03 04:13:42,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6073 to 6073. [2022-11-03 04:13:42,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6073 states, 3580 states have (on average 1.2955307262569833) internal successors, (4638), 3679 states have internal predecessors, (4638), 2051 states have call successors, (2051), 420 states have call predecessors, (2051), 417 states have return successors, (2300), 2026 states have call predecessors, (2300), 2049 states have call successors, (2300) [2022-11-03 04:13:42,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6073 states to 6073 states and 8989 transitions. [2022-11-03 04:13:42,239 INFO L78 Accepts]: Start accepts. Automaton has 6073 states and 8989 transitions. Word has length 69 [2022-11-03 04:13:42,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:13:42,239 INFO L495 AbstractCegarLoop]: Abstraction has 6073 states and 8989 transitions. [2022-11-03 04:13:42,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-03 04:13:42,240 INFO L276 IsEmpty]: Start isEmpty. Operand 6073 states and 8989 transitions. [2022-11-03 04:13:42,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-03 04:13:42,241 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:13:42,241 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] [2022-11-03 04:13:42,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-03 04:13:42,242 INFO L420 AbstractCegarLoop]: === Iteration 11 === 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 32 more)] === [2022-11-03 04:13:42,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:13:42,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1772073539, now seen corresponding path program 1 times [2022-11-03 04:13:42,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:13:42,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642241667] [2022-11-03 04:13:42,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:13:42,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:13:42,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:13:42,937 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:13:42,937 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:13:42,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642241667] [2022-11-03 04:13:42,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642241667] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:13:42,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:13:42,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 04:13:42,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340675268] [2022-11-03 04:13:42,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:13:42,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:13:42,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:13:42,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:13:42,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:13:42,940 INFO L87 Difference]: Start difference. First operand 6073 states and 8989 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-03 04:13:55,802 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 [] [2022-11-03 04:13:55,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:13:55,944 INFO L93 Difference]: Finished difference Result 6726 states and 9799 transitions. [2022-11-03 04:13:55,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:13:55,944 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 70 [2022-11-03 04:13:55,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:13:55,975 INFO L225 Difference]: With dead ends: 6726 [2022-11-03 04:13:55,976 INFO L226 Difference]: Without dead ends: 6724 [2022-11-03 04:13:55,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:13:55,981 INFO L413 NwaCegarLoop]: 5017 mSDtfsCounter, 4924 mSDsluCounter, 11871 mSDsCounter, 0 mSdLazyCounter, 1670 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4931 SdHoareTripleChecker+Valid, 15754 SdHoareTripleChecker+Invalid, 1674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1670 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:13:55,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4931 Valid, 15754 Invalid, 1674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1670 Invalid, 1 Unknown, 0 Unchecked, 12.3s Time] [2022-11-03 04:13:55,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6724 states. [2022-11-03 04:13:56,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6724 to 6712. [2022-11-03 04:13:56,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6712 states, 3924 states have (on average 1.2826197757390418) internal successors, (5033), 4029 states have internal predecessors, (5033), 2251 states have call successors, (2251), 517 states have call predecessors, (2251), 512 states have return successors, (2506), 2222 states have call predecessors, (2506), 2249 states have call successors, (2506) [2022-11-03 04:13:56,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6712 states to 6712 states and 9790 transitions. [2022-11-03 04:13:56,681 INFO L78 Accepts]: Start accepts. Automaton has 6712 states and 9790 transitions. Word has length 70 [2022-11-03 04:13:56,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:13:56,682 INFO L495 AbstractCegarLoop]: Abstraction has 6712 states and 9790 transitions. [2022-11-03 04:13:56,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-03 04:13:56,682 INFO L276 IsEmpty]: Start isEmpty. Operand 6712 states and 9790 transitions. [2022-11-03 04:13:56,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-03 04:13:56,684 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:13:56,684 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] [2022-11-03 04:13:56,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-03 04:13:56,684 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_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 32 more)] === [2022-11-03 04:13:56,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:13:56,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1573100171, now seen corresponding path program 1 times [2022-11-03 04:13:56,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:13:56,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203263147] [2022-11-03 04:13:56,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:13:56,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:13:56,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:13:57,483 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:13:57,483 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:13:57,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203263147] [2022-11-03 04:13:57,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203263147] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:13:57,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:13:57,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 04:13:57,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108358507] [2022-11-03 04:13:57,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:13:57,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:13:57,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:13:57,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:13:57,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:13:57,486 INFO L87 Difference]: Start difference. First operand 6712 states and 9790 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-03 04:14:00,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:14:03,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:14:13,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:14:15,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:14:15,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:14:15,803 INFO L93 Difference]: Finished difference Result 14397 states and 21269 transitions. [2022-11-03 04:14:15,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 04:14:15,803 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 67 [2022-11-03 04:14:15,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:14:15,845 INFO L225 Difference]: With dead ends: 14397 [2022-11-03 04:14:15,845 INFO L226 Difference]: Without dead ends: 7691 [2022-11-03 04:14:15,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:14:15,884 INFO L413 NwaCegarLoop]: 4801 mSDtfsCounter, 379 mSDsluCounter, 15328 mSDsCounter, 0 mSdLazyCounter, 2163 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 612 SdHoareTripleChecker+Valid, 18714 SdHoareTripleChecker+Invalid, 2166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2163 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.5s IncrementalHoareTripleChecker+Time [2022-11-03 04:14:15,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [612 Valid, 18714 Invalid, 2166 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2163 Invalid, 3 Unknown, 0 Unchecked, 17.5s Time] [2022-11-03 04:14:15,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7691 states. [2022-11-03 04:14:16,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7691 to 6716. [2022-11-03 04:14:16,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6716 states, 3927 states have (on average 1.2824038706391647) internal successors, (5036), 4032 states have internal predecessors, (5036), 2251 states have call successors, (2251), 517 states have call predecessors, (2251), 513 states have return successors, (2524), 2223 states have call predecessors, (2524), 2249 states have call successors, (2524) [2022-11-03 04:14:16,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6716 states to 6716 states and 9811 transitions. [2022-11-03 04:14:16,664 INFO L78 Accepts]: Start accepts. Automaton has 6716 states and 9811 transitions. Word has length 67 [2022-11-03 04:14:16,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:14:16,665 INFO L495 AbstractCegarLoop]: Abstraction has 6716 states and 9811 transitions. [2022-11-03 04:14:16,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-03 04:14:16,665 INFO L276 IsEmpty]: Start isEmpty. Operand 6716 states and 9811 transitions. [2022-11-03 04:14:16,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-03 04:14:16,667 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:14:16,667 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:14:16,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-03 04:14:16,667 INFO L420 AbstractCegarLoop]: === Iteration 13 === 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 32 more)] === [2022-11-03 04:14:16,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:14:16,668 INFO L85 PathProgramCache]: Analyzing trace with hash 17810353, now seen corresponding path program 1 times [2022-11-03 04:14:16,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:14:16,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949220283] [2022-11-03 04:14:16,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:14:16,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:14:16,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:14:17,037 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 04:14:17,037 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:14:17,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949220283] [2022-11-03 04:14:17,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949220283] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:14:17,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:14:17,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:14:17,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481476465] [2022-11-03 04:14:17,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:14:17,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:14:17,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:14:17,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:14:17,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:14:17,040 INFO L87 Difference]: Start difference. First operand 6716 states and 9811 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-03 04:14:23,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:14:26,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:14:26,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:14:26,123 INFO L93 Difference]: Finished difference Result 6716 states and 9811 transitions. [2022-11-03 04:14:26,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:14:26,124 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (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 74 [2022-11-03 04:14:26,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:14:26,155 INFO L225 Difference]: With dead ends: 6716 [2022-11-03 04:14:26,155 INFO L226 Difference]: Without dead ends: 6714 [2022-11-03 04:14:26,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:14:26,161 INFO L413 NwaCegarLoop]: 4566 mSDtfsCounter, 5021 mSDsluCounter, 5042 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5023 SdHoareTripleChecker+Valid, 9132 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:14:26,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5023 Valid, 9132 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 954 Invalid, 1 Unknown, 0 Unchecked, 8.4s Time] [2022-11-03 04:14:26,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6714 states. [2022-11-03 04:14:26,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6714 to 6714. [2022-11-03 04:14:26,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6714 states, 3926 states have (on average 1.2822210901681101) internal successors, (5034), 4030 states have internal predecessors, (5034), 2251 states have call successors, (2251), 517 states have call predecessors, (2251), 513 states have return successors, (2524), 2223 states have call predecessors, (2524), 2249 states have call successors, (2524) [2022-11-03 04:14:26,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6714 states to 6714 states and 9809 transitions. [2022-11-03 04:14:26,989 INFO L78 Accepts]: Start accepts. Automaton has 6714 states and 9809 transitions. Word has length 74 [2022-11-03 04:14:26,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:14:26,989 INFO L495 AbstractCegarLoop]: Abstraction has 6714 states and 9809 transitions. [2022-11-03 04:14:26,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-03 04:14:26,990 INFO L276 IsEmpty]: Start isEmpty. Operand 6714 states and 9809 transitions. [2022-11-03 04:14:26,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-03 04:14:26,991 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:14:26,992 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:14:26,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-03 04:14:26,992 INFO L420 AbstractCegarLoop]: === Iteration 14 === 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 32 more)] === [2022-11-03 04:14:26,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:14:26,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1230532541, now seen corresponding path program 1 times [2022-11-03 04:14:26,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:14:26,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517769035] [2022-11-03 04:14:26,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:14:26,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:14:27,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:14:27,370 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 04:14:27,370 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:14:27,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517769035] [2022-11-03 04:14:27,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517769035] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:14:27,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:14:27,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:14:27,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997746816] [2022-11-03 04:14:27,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:14:27,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:14:27,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:14:27,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:14:27,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:14:27,373 INFO L87 Difference]: Start difference. First operand 6714 states and 9809 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 04:14:35,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:14:37,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:14:39,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:14:41,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:14:41,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:14:41,557 INFO L93 Difference]: Finished difference Result 6721 states and 9819 transitions. [2022-11-03 04:14:41,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:14:41,558 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (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 79 [2022-11-03 04:14:41,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:14:41,589 INFO L225 Difference]: With dead ends: 6721 [2022-11-03 04:14:41,589 INFO L226 Difference]: Without dead ends: 6719 [2022-11-03 04:14:41,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:14:41,594 INFO L413 NwaCegarLoop]: 4567 mSDtfsCounter, 5016 mSDsluCounter, 5070 mSDsCounter, 0 mSdLazyCounter, 956 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5022 SdHoareTripleChecker+Valid, 9157 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 956 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2022-11-03 04:14:41,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5022 Valid, 9157 Invalid, 959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 956 Invalid, 3 Unknown, 0 Unchecked, 13.5s Time] [2022-11-03 04:14:41,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6719 states. [2022-11-03 04:14:42,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6719 to 6715. [2022-11-03 04:14:42,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6715 states, 3927 states have (on average 1.2818945760122231) internal successors, (5034), 4031 states have internal predecessors, (5034), 2251 states have call successors, (2251), 517 states have call predecessors, (2251), 514 states have return successors, (2526), 2224 states have call predecessors, (2526), 2249 states have call successors, (2526) [2022-11-03 04:14:42,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6715 states to 6715 states and 9811 transitions. [2022-11-03 04:14:42,296 INFO L78 Accepts]: Start accepts. Automaton has 6715 states and 9811 transitions. Word has length 79 [2022-11-03 04:14:42,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:14:42,296 INFO L495 AbstractCegarLoop]: Abstraction has 6715 states and 9811 transitions. [2022-11-03 04:14:42,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 04:14:42,297 INFO L276 IsEmpty]: Start isEmpty. Operand 6715 states and 9811 transitions. [2022-11-03 04:14:42,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-03 04:14:42,298 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:14:42,298 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:14:42,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-03 04:14:42,299 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_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 32 more)] === [2022-11-03 04:14:42,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:14:42,299 INFO L85 PathProgramCache]: Analyzing trace with hash 2099526562, now seen corresponding path program 1 times [2022-11-03 04:14:42,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:14:42,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794400539] [2022-11-03 04:14:42,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:14:42,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:14:42,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:14:43,114 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-11-03 04:14:43,114 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:14:43,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794400539] [2022-11-03 04:14:43,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794400539] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:14:43,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:14:43,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:14:43,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281570728] [2022-11-03 04:14:43,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:14:43,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:14:43,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:14:43,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:14:43,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:14:43,118 INFO L87 Difference]: Start difference. First operand 6715 states and 9811 transitions. Second operand has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-03 04:14:46,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:15:02,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:15:04,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:15:06,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:15:08,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:15:08,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:15:08,628 INFO L93 Difference]: Finished difference Result 6715 states and 9811 transitions. [2022-11-03 04:15:08,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 04:15:08,630 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 80 [2022-11-03 04:15:08,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:15:08,659 INFO L225 Difference]: With dead ends: 6715 [2022-11-03 04:15:08,659 INFO L226 Difference]: Without dead ends: 6713 [2022-11-03 04:15:08,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-03 04:15:08,664 INFO L413 NwaCegarLoop]: 4563 mSDtfsCounter, 5013 mSDsluCounter, 12628 mSDsCounter, 0 mSdLazyCounter, 4373 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5020 SdHoareTripleChecker+Valid, 15772 SdHoareTripleChecker+Invalid, 4378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4373 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.5s IncrementalHoareTripleChecker+Time [2022-11-03 04:15:08,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5020 Valid, 15772 Invalid, 4378 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 4373 Invalid, 4 Unknown, 0 Unchecked, 24.5s Time] [2022-11-03 04:15:08,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6713 states. [2022-11-03 04:15:09,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6713 to 6713. [2022-11-03 04:15:09,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6713 states, 3926 states have (on average 1.2812022414671422) internal successors, (5030), 4029 states have internal predecessors, (5030), 2251 states have call successors, (2251), 517 states have call predecessors, (2251), 514 states have return successors, (2526), 2224 states have call predecessors, (2526), 2249 states have call successors, (2526) [2022-11-03 04:15:09,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6713 states to 6713 states and 9807 transitions. [2022-11-03 04:15:09,495 INFO L78 Accepts]: Start accepts. Automaton has 6713 states and 9807 transitions. Word has length 80 [2022-11-03 04:15:09,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:15:09,496 INFO L495 AbstractCegarLoop]: Abstraction has 6713 states and 9807 transitions. [2022-11-03 04:15:09,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-03 04:15:09,496 INFO L276 IsEmpty]: Start isEmpty. Operand 6713 states and 9807 transitions. [2022-11-03 04:15:09,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-03 04:15:09,497 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:15:09,497 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:15:09,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-03 04:15:09,498 INFO L420 AbstractCegarLoop]: === Iteration 16 === 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 32 more)] === [2022-11-03 04:15:09,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:15:09,498 INFO L85 PathProgramCache]: Analyzing trace with hash -257344587, now seen corresponding path program 1 times [2022-11-03 04:15:09,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:15:09,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238574268] [2022-11-03 04:15:09,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:15:09,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:15:09,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:15:09,847 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 04:15:09,847 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:15:09,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238574268] [2022-11-03 04:15:09,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238574268] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:15:09,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:15:09,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:15:09,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474032259] [2022-11-03 04:15:09,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:15:09,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:15:09,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:15:09,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:15:09,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:15:09,849 INFO L87 Difference]: Start difference. First operand 6713 states and 9807 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-03 04:15:17,374 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 [] [2022-11-03 04:15:19,703 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 [] [2022-11-03 04:15:19,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:15:19,813 INFO L93 Difference]: Finished difference Result 6713 states and 9807 transitions. [2022-11-03 04:15:19,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:15:19,813 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 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 84 [2022-11-03 04:15:19,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:15:19,838 INFO L225 Difference]: With dead ends: 6713 [2022-11-03 04:15:19,838 INFO L226 Difference]: Without dead ends: 6711 [2022-11-03 04:15:19,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:15:19,841 INFO L413 NwaCegarLoop]: 4563 mSDtfsCounter, 5015 mSDsluCounter, 5062 mSDsCounter, 0 mSdLazyCounter, 956 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5021 SdHoareTripleChecker+Valid, 9146 SdHoareTripleChecker+Invalid, 958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 956 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:15:19,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5021 Valid, 9146 Invalid, 958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 956 Invalid, 2 Unknown, 0 Unchecked, 9.2s Time] [2022-11-03 04:15:19,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6711 states. [2022-11-03 04:15:20,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6711 to 6711. [2022-11-03 04:15:20,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6711 states, 3925 states have (on average 1.2810191082802547) internal successors, (5028), 4027 states have internal predecessors, (5028), 2251 states have call successors, (2251), 517 states have call predecessors, (2251), 514 states have return successors, (2526), 2224 states have call predecessors, (2526), 2249 states have call successors, (2526) [2022-11-03 04:15:20,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6711 states to 6711 states and 9805 transitions. [2022-11-03 04:15:20,682 INFO L78 Accepts]: Start accepts. Automaton has 6711 states and 9805 transitions. Word has length 84 [2022-11-03 04:15:20,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:15:20,683 INFO L495 AbstractCegarLoop]: Abstraction has 6711 states and 9805 transitions. [2022-11-03 04:15:20,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-03 04:15:20,683 INFO L276 IsEmpty]: Start isEmpty. Operand 6711 states and 9805 transitions. [2022-11-03 04:15:20,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-03 04:15:20,685 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:15:20,685 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:15:20,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-03 04:15:20,685 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-03 04:15:20,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:15:20,686 INFO L85 PathProgramCache]: Analyzing trace with hash -422295527, now seen corresponding path program 1 times [2022-11-03 04:15:20,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:15:20,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628458750] [2022-11-03 04:15:20,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:15:20,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:15:20,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:15:20,999 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-11-03 04:15:21,000 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:15:21,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628458750] [2022-11-03 04:15:21,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628458750] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:15:21,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:15:21,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:15:21,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922855804] [2022-11-03 04:15:21,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:15:21,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:15:21,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:15:21,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:15:21,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:15:21,003 INFO L87 Difference]: Start difference. First operand 6711 states and 9805 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-03 04:15:27,264 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 [] [2022-11-03 04:15:29,567 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 [] [2022-11-03 04:15:29,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:15:29,676 INFO L93 Difference]: Finished difference Result 13395 states and 20054 transitions. [2022-11-03 04:15:29,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:15:29,676 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 83 [2022-11-03 04:15:29,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:15:29,702 INFO L225 Difference]: With dead ends: 13395 [2022-11-03 04:15:29,703 INFO L226 Difference]: Without dead ends: 6703 [2022-11-03 04:15:29,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:15:29,743 INFO L413 NwaCegarLoop]: 4558 mSDtfsCounter, 5000 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5004 SdHoareTripleChecker+Valid, 4582 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-11-03 04:15:29,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5004 Valid, 4582 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 482 Invalid, 2 Unknown, 0 Unchecked, 7.8s Time] [2022-11-03 04:15:29,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6703 states. [2022-11-03 04:15:30,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6703 to 6703. [2022-11-03 04:15:30,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6703 states, 3918 states have (on average 1.2799897907095457) internal successors, (5015), 4019 states have internal predecessors, (5015), 2251 states have call successors, (2251), 517 states have call predecessors, (2251), 514 states have return successors, (2526), 2224 states have call predecessors, (2526), 2249 states have call successors, (2526) [2022-11-03 04:15:30,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6703 states to 6703 states and 9792 transitions. [2022-11-03 04:15:30,796 INFO L78 Accepts]: Start accepts. Automaton has 6703 states and 9792 transitions. Word has length 83 [2022-11-03 04:15:30,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:15:30,796 INFO L495 AbstractCegarLoop]: Abstraction has 6703 states and 9792 transitions. [2022-11-03 04:15:30,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-03 04:15:30,797 INFO L276 IsEmpty]: Start isEmpty. Operand 6703 states and 9792 transitions. [2022-11-03 04:15:30,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-03 04:15:30,798 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:15:30,799 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:15:30,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-03 04:15:30,800 INFO L420 AbstractCegarLoop]: === Iteration 18 === 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 32 more)] === [2022-11-03 04:15:30,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:15:30,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1800244312, now seen corresponding path program 1 times [2022-11-03 04:15:30,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:15:30,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018626665] [2022-11-03 04:15:30,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:15:30,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:15:30,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:15:31,110 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 04:15:31,110 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:15:31,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018626665] [2022-11-03 04:15:31,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018626665] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:15:31,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:15:31,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:15:31,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977122538] [2022-11-03 04:15:31,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:15:31,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:15:31,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:15:31,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:15:31,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:15:31,113 INFO L87 Difference]: Start difference. First operand 6703 states and 9792 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, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-03 04:15:33,715 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 [] [2022-11-03 04:15:41,489 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 [] [2022-11-03 04:15:41,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:15:41,606 INFO L93 Difference]: Finished difference Result 6703 states and 9792 transitions. [2022-11-03 04:15:41,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:15:41,606 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, (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 [2022-11-03 04:15:41,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:15:41,681 INFO L225 Difference]: With dead ends: 6703 [2022-11-03 04:15:41,682 INFO L226 Difference]: Without dead ends: 6701 [2022-11-03 04:15:41,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:15:41,685 INFO L413 NwaCegarLoop]: 4553 mSDtfsCounter, 5003 mSDsluCounter, 5029 mSDsCounter, 0 mSdLazyCounter, 952 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5007 SdHoareTripleChecker+Valid, 9107 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 952 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2022-11-03 04:15:41,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5007 Valid, 9107 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 952 Invalid, 2 Unknown, 0 Unchecked, 9.6s Time] [2022-11-03 04:15:41,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6701 states. [2022-11-03 04:15:42,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6701 to 6701. [2022-11-03 04:15:42,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6701 states, 3917 states have (on average 1.279805973959663) internal successors, (5013), 4017 states have internal predecessors, (5013), 2251 states have call successors, (2251), 517 states have call predecessors, (2251), 514 states have return successors, (2526), 2224 states have call predecessors, (2526), 2249 states have call successors, (2526) [2022-11-03 04:15:42,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6701 states to 6701 states and 9790 transitions. [2022-11-03 04:15:42,493 INFO L78 Accepts]: Start accepts. Automaton has 6701 states and 9790 transitions. Word has length 86 [2022-11-03 04:15:42,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:15:42,493 INFO L495 AbstractCegarLoop]: Abstraction has 6701 states and 9790 transitions. [2022-11-03 04:15:42,493 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, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-03 04:15:42,493 INFO L276 IsEmpty]: Start isEmpty. Operand 6701 states and 9790 transitions. [2022-11-03 04:15:42,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-03 04:15:42,495 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:15:42,495 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:15:42,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-03 04:15:42,495 INFO L420 AbstractCegarLoop]: === Iteration 19 === 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 32 more)] === [2022-11-03 04:15:42,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:15:42,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1773400109, now seen corresponding path program 1 times [2022-11-03 04:15:42,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:15:42,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998503813] [2022-11-03 04:15:42,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:15:42,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:15:42,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:15:42,820 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 04:15:42,821 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:15:42,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998503813] [2022-11-03 04:15:42,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998503813] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:15:42,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:15:42,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:15:42,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363477861] [2022-11-03 04:15:42,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:15:42,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:15:42,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:15:42,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:15:42,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:15:42,824 INFO L87 Difference]: Start difference. First operand 6701 states and 9790 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-03 04:15:50,628 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 [] [2022-11-03 04:15:52,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:15:56,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:15:56,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:15:56,384 INFO L93 Difference]: Finished difference Result 6701 states and 9790 transitions. [2022-11-03 04:15:56,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:15:56,385 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (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 [2022-11-03 04:15:56,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:15:56,401 INFO L225 Difference]: With dead ends: 6701 [2022-11-03 04:15:56,401 INFO L226 Difference]: Without dead ends: 6699 [2022-11-03 04:15:56,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:15:56,404 INFO L413 NwaCegarLoop]: 4554 mSDtfsCounter, 5002 mSDsluCounter, 5057 mSDsCounter, 0 mSdLazyCounter, 956 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5006 SdHoareTripleChecker+Valid, 9131 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 956 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2022-11-03 04:15:56,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5006 Valid, 9131 Invalid, 959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 956 Invalid, 3 Unknown, 0 Unchecked, 12.6s Time] [2022-11-03 04:15:56,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6699 states. [2022-11-03 04:15:57,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6699 to 6699. [2022-11-03 04:15:57,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6699 states, 3916 states have (on average 1.2796220633299284) internal successors, (5011), 4015 states have internal predecessors, (5011), 2251 states have call successors, (2251), 517 states have call predecessors, (2251), 514 states have return successors, (2526), 2224 states have call predecessors, (2526), 2249 states have call successors, (2526) [2022-11-03 04:15:57,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6699 states to 6699 states and 9788 transitions. [2022-11-03 04:15:57,098 INFO L78 Accepts]: Start accepts. Automaton has 6699 states and 9788 transitions. Word has length 91 [2022-11-03 04:15:57,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:15:57,098 INFO L495 AbstractCegarLoop]: Abstraction has 6699 states and 9788 transitions. [2022-11-03 04:15:57,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-03 04:15:57,098 INFO L276 IsEmpty]: Start isEmpty. Operand 6699 states and 9788 transitions. [2022-11-03 04:15:57,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-03 04:15:57,100 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:15:57,100 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:15:57,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-03 04:15:57,100 INFO L420 AbstractCegarLoop]: === Iteration 20 === 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 32 more)] === [2022-11-03 04:15:57,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:15:57,101 INFO L85 PathProgramCache]: Analyzing trace with hash -139423166, now seen corresponding path program 1 times [2022-11-03 04:15:57,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:15:57,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760827608] [2022-11-03 04:15:57,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:15:57,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:15:57,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:15:57,486 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 04:15:57,486 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:15:57,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760827608] [2022-11-03 04:15:57,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760827608] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:15:57,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:15:57,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:15:57,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588239642] [2022-11-03 04:15:57,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:15:57,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:15:57,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:15:57,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:15:57,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:15:57,489 INFO L87 Difference]: Start difference. First operand 6699 states and 9788 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 04:16:05,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:16:08,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:16:08,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:16:08,321 INFO L93 Difference]: Finished difference Result 6699 states and 9788 transitions. [2022-11-03 04:16:08,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:16:08,321 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (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 96 [2022-11-03 04:16:08,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:16:08,337 INFO L225 Difference]: With dead ends: 6699 [2022-11-03 04:16:08,337 INFO L226 Difference]: Without dead ends: 6697 [2022-11-03 04:16:08,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:16:08,339 INFO L413 NwaCegarLoop]: 4551 mSDtfsCounter, 4999 mSDsluCounter, 5054 mSDsCounter, 0 mSdLazyCounter, 959 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5003 SdHoareTripleChecker+Valid, 9125 SdHoareTripleChecker+Invalid, 961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 959 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-11-03 04:16:08,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5003 Valid, 9125 Invalid, 961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 959 Invalid, 2 Unknown, 0 Unchecked, 9.9s Time] [2022-11-03 04:16:08,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6697 states. [2022-11-03 04:16:09,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6697 to 6697. [2022-11-03 04:16:09,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6697 states, 3915 states have (on average 1.2794380587484036) internal successors, (5009), 4013 states have internal predecessors, (5009), 2251 states have call successors, (2251), 517 states have call predecessors, (2251), 514 states have return successors, (2526), 2224 states have call predecessors, (2526), 2249 states have call successors, (2526) [2022-11-03 04:16:09,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6697 states to 6697 states and 9786 transitions. [2022-11-03 04:16:09,047 INFO L78 Accepts]: Start accepts. Automaton has 6697 states and 9786 transitions. Word has length 96 [2022-11-03 04:16:09,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:16:09,047 INFO L495 AbstractCegarLoop]: Abstraction has 6697 states and 9786 transitions. [2022-11-03 04:16:09,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 04:16:09,047 INFO L276 IsEmpty]: Start isEmpty. Operand 6697 states and 9786 transitions. [2022-11-03 04:16:09,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-03 04:16:09,049 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:16:09,049 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:16:09,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-03 04:16:09,049 INFO L420 AbstractCegarLoop]: === Iteration 21 === 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 32 more)] === [2022-11-03 04:16:09,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:16:09,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1572937484, now seen corresponding path program 1 times [2022-11-03 04:16:09,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:16:09,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140912405] [2022-11-03 04:16:09,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:16:09,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:16:09,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:16:09,648 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-11-03 04:16:09,648 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:16:09,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140912405] [2022-11-03 04:16:09,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140912405] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:16:09,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:16:09,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 04:16:09,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495869937] [2022-11-03 04:16:09,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:16:09,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:16:09,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:16:09,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:16:09,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:16:09,651 INFO L87 Difference]: Start difference. First operand 6697 states and 9786 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-03 04:16:24,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:16:26,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:16:27,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:16:27,157 INFO L93 Difference]: Finished difference Result 6867 states and 9966 transitions. [2022-11-03 04:16:27,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 04:16:27,158 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 102 [2022-11-03 04:16:27,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:16:27,176 INFO L225 Difference]: With dead ends: 6867 [2022-11-03 04:16:27,176 INFO L226 Difference]: Without dead ends: 6865 [2022-11-03 04:16:27,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-03 04:16:27,179 INFO L413 NwaCegarLoop]: 7580 mSDtfsCounter, 5129 mSDsluCounter, 20708 mSDsCounter, 0 mSdLazyCounter, 2817 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5134 SdHoareTripleChecker+Valid, 26291 SdHoareTripleChecker+Invalid, 2819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2817 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:16:27,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5134 Valid, 26291 Invalid, 2819 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2817 Invalid, 2 Unknown, 0 Unchecked, 16.4s Time] [2022-11-03 04:16:27,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6865 states. [2022-11-03 04:16:27,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6865 to 6705. [2022-11-03 04:16:27,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6705 states, 3921 states have (on average 1.2790104565161948) internal successors, (5015), 4019 states have internal predecessors, (5015), 2251 states have call successors, (2251), 519 states have call predecessors, (2251), 516 states have return successors, (2526), 2224 states have call predecessors, (2526), 2249 states have call successors, (2526) [2022-11-03 04:16:27,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6705 states to 6705 states and 9792 transitions. [2022-11-03 04:16:27,888 INFO L78 Accepts]: Start accepts. Automaton has 6705 states and 9792 transitions. Word has length 102 [2022-11-03 04:16:27,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:16:27,889 INFO L495 AbstractCegarLoop]: Abstraction has 6705 states and 9792 transitions. [2022-11-03 04:16:27,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-03 04:16:27,889 INFO L276 IsEmpty]: Start isEmpty. Operand 6705 states and 9792 transitions. [2022-11-03 04:16:27,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-03 04:16:27,891 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:16:27,891 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:16:27,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-03 04:16:27,891 INFO L420 AbstractCegarLoop]: === Iteration 22 === 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 32 more)] === [2022-11-03 04:16:27,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:16:27,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1818547849, now seen corresponding path program 1 times [2022-11-03 04:16:27,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:16:27,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684419020] [2022-11-03 04:16:27,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:16:27,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:16:27,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:16:28,530 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-11-03 04:16:28,530 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:16:28,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684419020] [2022-11-03 04:16:28,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684419020] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:16:28,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:16:28,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 04:16:28,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945399140] [2022-11-03 04:16:28,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:16:28,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:16:28,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:16:28,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:16:28,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:16:28,534 INFO L87 Difference]: Start difference. First operand 6705 states and 9792 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-03 04:16:38,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:16:40,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:16:42,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:16:43,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:16:43,179 INFO L93 Difference]: Finished difference Result 6727 states and 9808 transitions. [2022-11-03 04:16:43,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 04:16:43,179 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 104 [2022-11-03 04:16:43,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:16:43,195 INFO L225 Difference]: With dead ends: 6727 [2022-11-03 04:16:43,195 INFO L226 Difference]: Without dead ends: 6725 [2022-11-03 04:16:43,196 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 [2022-11-03 04:16:43,197 INFO L413 NwaCegarLoop]: 4553 mSDtfsCounter, 4947 mSDsluCounter, 10115 mSDsCounter, 0 mSdLazyCounter, 1445 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4949 SdHoareTripleChecker+Valid, 13708 SdHoareTripleChecker+Invalid, 1449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1445 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2022-11-03 04:16:43,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4949 Valid, 13708 Invalid, 1449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1445 Invalid, 2 Unknown, 0 Unchecked, 13.6s Time] [2022-11-03 04:16:43,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6725 states. [2022-11-03 04:16:43,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6725 to 6723. [2022-11-03 04:16:43,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6723 states, 3933 states have (on average 1.2781591660310196) internal successors, (5027), 4031 states have internal predecessors, (5027), 2251 states have call successors, (2251), 525 states have call predecessors, (2251), 522 states have return successors, (2526), 2224 states have call predecessors, (2526), 2249 states have call successors, (2526) [2022-11-03 04:16:43,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6723 states to 6723 states and 9804 transitions. [2022-11-03 04:16:43,887 INFO L78 Accepts]: Start accepts. Automaton has 6723 states and 9804 transitions. Word has length 104 [2022-11-03 04:16:43,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:16:43,887 INFO L495 AbstractCegarLoop]: Abstraction has 6723 states and 9804 transitions. [2022-11-03 04:16:43,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-03 04:16:43,888 INFO L276 IsEmpty]: Start isEmpty. Operand 6723 states and 9804 transitions. [2022-11-03 04:16:43,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-03 04:16:43,889 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:16:43,889 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:16:43,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-03 04:16:43,889 INFO L420 AbstractCegarLoop]: === Iteration 23 === 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 32 more)] === [2022-11-03 04:16:43,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:16:43,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1964348479, now seen corresponding path program 1 times [2022-11-03 04:16:43,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:16:43,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231580922] [2022-11-03 04:16:43,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:16:43,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:16:43,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:16:44,210 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 04:16:44,210 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:16:44,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231580922] [2022-11-03 04:16:44,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231580922] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:16:44,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:16:44,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:16:44,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150275873] [2022-11-03 04:16:44,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:16:44,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:16:44,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:16:44,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:16:44,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:16:44,212 INFO L87 Difference]: Start difference. First operand 6723 states and 9804 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-03 04:16:53,586 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 [] [2022-11-03 04:16:53,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:16:53,714 INFO L93 Difference]: Finished difference Result 6723 states and 9804 transitions. [2022-11-03 04:16:53,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:16:53,714 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (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 101 [2022-11-03 04:16:53,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:16:53,731 INFO L225 Difference]: With dead ends: 6723 [2022-11-03 04:16:53,731 INFO L226 Difference]: Without dead ends: 6721 [2022-11-03 04:16:53,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:16:53,734 INFO L413 NwaCegarLoop]: 4547 mSDtfsCounter, 4996 mSDsluCounter, 5022 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5000 SdHoareTripleChecker+Valid, 9095 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-11-03 04:16:53,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5000 Valid, 9095 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 953 Invalid, 1 Unknown, 0 Unchecked, 8.6s Time] [2022-11-03 04:16:53,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6721 states. [2022-11-03 04:16:54,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6721 to 6721. [2022-11-03 04:16:54,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6721 states, 3932 states have (on average 1.2779755849440488) internal successors, (5025), 4029 states have internal predecessors, (5025), 2251 states have call successors, (2251), 525 states have call predecessors, (2251), 522 states have return successors, (2526), 2224 states have call predecessors, (2526), 2249 states have call successors, (2526) [2022-11-03 04:16:54,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6721 states to 6721 states and 9802 transitions. [2022-11-03 04:16:54,428 INFO L78 Accepts]: Start accepts. Automaton has 6721 states and 9802 transitions. Word has length 101 [2022-11-03 04:16:54,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:16:54,429 INFO L495 AbstractCegarLoop]: Abstraction has 6721 states and 9802 transitions. [2022-11-03 04:16:54,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-03 04:16:54,429 INFO L276 IsEmpty]: Start isEmpty. Operand 6721 states and 9802 transitions. [2022-11-03 04:16:54,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-03 04:16:54,431 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:16:54,431 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:16:54,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-03 04:16:54,431 INFO L420 AbstractCegarLoop]: === Iteration 24 === 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 32 more)] === [2022-11-03 04:16:54,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:16:54,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1116780513, now seen corresponding path program 1 times [2022-11-03 04:16:54,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:16:54,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583397021] [2022-11-03 04:16:54,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:16:54,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:16:54,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:16:54,916 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-11-03 04:16:54,917 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:16:54,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583397021] [2022-11-03 04:16:54,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583397021] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:16:54,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:16:54,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 04:16:54,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726056093] [2022-11-03 04:16:54,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:16:54,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:16:54,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:16:54,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:16:54,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:16:54,920 INFO L87 Difference]: Start difference. First operand 6721 states and 9802 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-03 04:17:08,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:17:12,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.95s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:17:14,822 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 [] [2022-11-03 04:17:14,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:17:14,975 INFO L93 Difference]: Finished difference Result 6733 states and 9810 transitions. [2022-11-03 04:17:14,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 04:17:14,975 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 106 [2022-11-03 04:17:14,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:17:15,003 INFO L225 Difference]: With dead ends: 6733 [2022-11-03 04:17:15,004 INFO L226 Difference]: Without dead ends: 6731 [2022-11-03 04:17:15,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-03 04:17:15,010 INFO L413 NwaCegarLoop]: 5110 mSDtfsCounter, 792 mSDsluCounter, 16245 mSDsCounter, 0 mSdLazyCounter, 2146 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 19781 SdHoareTripleChecker+Invalid, 2149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2146 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.0s IncrementalHoareTripleChecker+Time [2022-11-03 04:17:15,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [793 Valid, 19781 Invalid, 2149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2146 Invalid, 3 Unknown, 0 Unchecked, 19.0s Time] [2022-11-03 04:17:15,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6731 states. [2022-11-03 04:17:15,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6731 to 6725. [2022-11-03 04:17:15,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6725 states, 3935 states have (on average 1.2775095298602288) internal successors, (5027), 4032 states have internal predecessors, (5027), 2251 states have call successors, (2251), 526 states have call predecessors, (2251), 523 states have return successors, (2526), 2224 states have call predecessors, (2526), 2249 states have call successors, (2526) [2022-11-03 04:17:15,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6725 states to 6725 states and 9804 transitions. [2022-11-03 04:17:15,891 INFO L78 Accepts]: Start accepts. Automaton has 6725 states and 9804 transitions. Word has length 106 [2022-11-03 04:17:15,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:17:15,891 INFO L495 AbstractCegarLoop]: Abstraction has 6725 states and 9804 transitions. [2022-11-03 04:17:15,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-03 04:17:15,891 INFO L276 IsEmpty]: Start isEmpty. Operand 6725 states and 9804 transitions. [2022-11-03 04:17:15,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-03 04:17:15,893 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:17:15,894 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:17:15,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-03 04:17:15,894 INFO L420 AbstractCegarLoop]: === Iteration 25 === 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 32 more)] === [2022-11-03 04:17:15,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:17:15,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1544486368, now seen corresponding path program 1 times [2022-11-03 04:17:15,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:17:15,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350638949] [2022-11-03 04:17:15,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:17:15,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:17:15,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:17:16,268 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 04:17:16,268 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:17:16,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350638949] [2022-11-03 04:17:16,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350638949] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:17:16,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:17:16,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:17:16,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010575115] [2022-11-03 04:17:16,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:17:16,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:17:16,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:17:16,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:17:16,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:17:16,271 INFO L87 Difference]: Start difference. First operand 6725 states and 9804 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-03 04:17:20,075 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 [] [2022-11-03 04:17:27,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:17:29,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:17:30,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:17:30,066 INFO L93 Difference]: Finished difference Result 6725 states and 9804 transitions. [2022-11-03 04:17:30,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:17:30,066 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (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 106 [2022-11-03 04:17:30,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:17:30,082 INFO L225 Difference]: With dead ends: 6725 [2022-11-03 04:17:30,082 INFO L226 Difference]: Without dead ends: 6723 [2022-11-03 04:17:30,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:17:30,085 INFO L413 NwaCegarLoop]: 4545 mSDtfsCounter, 4993 mSDsluCounter, 5020 mSDsCounter, 0 mSdLazyCounter, 951 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4997 SdHoareTripleChecker+Valid, 9091 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 951 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2022-11-03 04:17:30,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4997 Valid, 9091 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 951 Invalid, 3 Unknown, 0 Unchecked, 12.8s Time] [2022-11-03 04:17:30,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6723 states. [2022-11-03 04:17:30,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6723 to 6723. [2022-11-03 04:17:30,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6723 states, 3934 states have (on average 1.277325876970005) internal successors, (5025), 4030 states have internal predecessors, (5025), 2251 states have call successors, (2251), 526 states have call predecessors, (2251), 523 states have return successors, (2526), 2224 states have call predecessors, (2526), 2249 states have call successors, (2526) [2022-11-03 04:17:30,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6723 states to 6723 states and 9802 transitions. [2022-11-03 04:17:30,774 INFO L78 Accepts]: Start accepts. Automaton has 6723 states and 9802 transitions. Word has length 106 [2022-11-03 04:17:30,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:17:30,775 INFO L495 AbstractCegarLoop]: Abstraction has 6723 states and 9802 transitions. [2022-11-03 04:17:30,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-03 04:17:30,775 INFO L276 IsEmpty]: Start isEmpty. Operand 6723 states and 9802 transitions. [2022-11-03 04:17:30,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-03 04:17:30,777 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:17:30,777 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:17:30,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-03 04:17:30,778 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_assert_linux_net_sock__double_releaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-03 04:17:30,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:17:30,778 INFO L85 PathProgramCache]: Analyzing trace with hash -876281961, now seen corresponding path program 1 times [2022-11-03 04:17:30,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:17:30,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798428168] [2022-11-03 04:17:30,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:17:30,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:17:30,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:17:31,646 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-11-03 04:17:31,646 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:17:31,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798428168] [2022-11-03 04:17:31,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798428168] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:17:31,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:17:31,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 04:17:31,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511338303] [2022-11-03 04:17:31,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:17:31,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 04:17:31,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:17:31,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 04:17:31,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:17:31,648 INFO L87 Difference]: Start difference. First operand 6723 states and 9802 transitions. Second operand has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (25), 5 states have call predecessors, (25), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-03 04:18:18,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:18:25,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:18:28,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:18:28,068 INFO L93 Difference]: Finished difference Result 13323 states and 19449 transitions. [2022-11-03 04:18:28,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 04:18:28,069 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (25), 5 states have call predecessors, (25), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 111 [2022-11-03 04:18:28,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:18:28,105 INFO L225 Difference]: With dead ends: 13323 [2022-11-03 04:18:28,106 INFO L226 Difference]: Without dead ends: 13321 [2022-11-03 04:18:28,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-03 04:18:28,112 INFO L413 NwaCegarLoop]: 4792 mSDtfsCounter, 7045 mSDsluCounter, 14152 mSDsCounter, 0 mSdLazyCounter, 19646 mSolverCounterSat, 1255 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8007 SdHoareTripleChecker+Valid, 17238 SdHoareTripleChecker+Invalid, 20903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1255 IncrementalHoareTripleChecker+Valid, 19646 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.5s IncrementalHoareTripleChecker+Time [2022-11-03 04:18:28,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8007 Valid, 17238 Invalid, 20903 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1255 Valid, 19646 Invalid, 2 Unknown, 0 Unchecked, 53.5s Time] [2022-11-03 04:18:28,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13321 states. [2022-11-03 04:18:29,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13321 to 13167. [2022-11-03 04:18:29,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13167 states, 7722 states have (on average 1.2804972804972805) internal successors, (9888), 7901 states have internal predecessors, (9888), 4421 states have call successors, (4421), 1020 states have call predecessors, (4421), 1009 states have return successors, (4955), 4360 states have call predecessors, (4955), 4419 states have call successors, (4955) [2022-11-03 04:18:29,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13167 states to 13167 states and 19264 transitions. [2022-11-03 04:18:29,528 INFO L78 Accepts]: Start accepts. Automaton has 13167 states and 19264 transitions. Word has length 111 [2022-11-03 04:18:29,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:18:29,528 INFO L495 AbstractCegarLoop]: Abstraction has 13167 states and 19264 transitions. [2022-11-03 04:18:29,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (25), 5 states have call predecessors, (25), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-03 04:18:29,529 INFO L276 IsEmpty]: Start isEmpty. Operand 13167 states and 19264 transitions. [2022-11-03 04:18:29,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-03 04:18:29,531 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:18:29,532 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:18:29,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-03 04:18:29,532 INFO L420 AbstractCegarLoop]: === Iteration 27 === 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 32 more)] === [2022-11-03 04:18:29,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:18:29,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1374885432, now seen corresponding path program 1 times [2022-11-03 04:18:29,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:18:29,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821023732] [2022-11-03 04:18:29,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:18:29,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:18:29,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:18:29,955 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 04:18:29,955 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:18:29,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821023732] [2022-11-03 04:18:29,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821023732] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:18:29,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:18:29,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:18:29,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379699326] [2022-11-03 04:18:29,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:18:29,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:18:29,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:18:29,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:18:29,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:18:29,958 INFO L87 Difference]: Start difference. First operand 13167 states and 19264 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-03 04:18:40,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:18:42,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:18:44,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:18:44,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:18:44,446 INFO L93 Difference]: Finished difference Result 13167 states and 19264 transitions. [2022-11-03 04:18:44,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:18:44,446 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (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 111 [2022-11-03 04:18:44,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:18:44,479 INFO L225 Difference]: With dead ends: 13167 [2022-11-03 04:18:44,479 INFO L226 Difference]: Without dead ends: 13165 [2022-11-03 04:18:44,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:18:44,483 INFO L413 NwaCegarLoop]: 4543 mSDtfsCounter, 4991 mSDsluCounter, 5018 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4993 SdHoareTripleChecker+Valid, 9086 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2022-11-03 04:18:44,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4993 Valid, 9086 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 953 Invalid, 2 Unknown, 0 Unchecked, 12.7s Time] [2022-11-03 04:18:44,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13165 states. [2022-11-03 04:18:45,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13165 to 13165. [2022-11-03 04:18:45,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13165 states, 7721 states have (on average 1.2804040927341018) internal successors, (9886), 7899 states have internal predecessors, (9886), 4421 states have call successors, (4421), 1020 states have call predecessors, (4421), 1009 states have return successors, (4955), 4360 states have call predecessors, (4955), 4419 states have call successors, (4955) [2022-11-03 04:18:45,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13165 states to 13165 states and 19262 transitions. [2022-11-03 04:18:45,870 INFO L78 Accepts]: Start accepts. Automaton has 13165 states and 19262 transitions. Word has length 111 [2022-11-03 04:18:45,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:18:45,871 INFO L495 AbstractCegarLoop]: Abstraction has 13165 states and 19262 transitions. [2022-11-03 04:18:45,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-03 04:18:45,871 INFO L276 IsEmpty]: Start isEmpty. Operand 13165 states and 19262 transitions. [2022-11-03 04:18:45,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-03 04:18:45,875 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:18:45,875 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:18:45,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-03 04:18:45,875 INFO L420 AbstractCegarLoop]: === Iteration 28 === 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 32 more)] === [2022-11-03 04:18:45,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:18:45,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1750598309, now seen corresponding path program 1 times [2022-11-03 04:18:45,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:18:45,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752394128] [2022-11-03 04:18:45,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:18:45,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:18:45,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:18:46,216 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 04:18:46,216 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:18:46,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752394128] [2022-11-03 04:18:46,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752394128] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:18:46,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:18:46,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:18:46,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828551626] [2022-11-03 04:18:46,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:18:46,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:18:46,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:18:46,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:18:46,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:18:46,219 INFO L87 Difference]: Start difference. First operand 13165 states and 19262 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-03 04:18:56,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:18:58,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:18:58,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:18:58,674 INFO L93 Difference]: Finished difference Result 13165 states and 19262 transitions. [2022-11-03 04:18:58,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:18:58,675 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (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 116 [2022-11-03 04:18:58,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:18:58,705 INFO L225 Difference]: With dead ends: 13165 [2022-11-03 04:18:58,705 INFO L226 Difference]: Without dead ends: 13163 [2022-11-03 04:18:58,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:18:58,709 INFO L413 NwaCegarLoop]: 4541 mSDtfsCounter, 4988 mSDsluCounter, 5017 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4990 SdHoareTripleChecker+Valid, 9082 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-11-03 04:18:58,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4990 Valid, 9082 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 954 Invalid, 1 Unknown, 0 Unchecked, 10.5s Time] [2022-11-03 04:18:58,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13163 states. [2022-11-03 04:19:00,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13163 to 13163. [2022-11-03 04:19:00,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13163 states, 7720 states have (on average 1.2803108808290156) internal successors, (9884), 7897 states have internal predecessors, (9884), 4421 states have call successors, (4421), 1020 states have call predecessors, (4421), 1009 states have return successors, (4955), 4360 states have call predecessors, (4955), 4419 states have call successors, (4955) [2022-11-03 04:19:00,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13163 states to 13163 states and 19260 transitions. [2022-11-03 04:19:00,335 INFO L78 Accepts]: Start accepts. Automaton has 13163 states and 19260 transitions. Word has length 116 [2022-11-03 04:19:00,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:19:00,336 INFO L495 AbstractCegarLoop]: Abstraction has 13163 states and 19260 transitions. [2022-11-03 04:19:00,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-03 04:19:00,336 INFO L276 IsEmpty]: Start isEmpty. Operand 13163 states and 19260 transitions. [2022-11-03 04:19:00,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-03 04:19:00,339 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:19:00,339 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 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] [2022-11-03 04:19:00,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-03 04:19:00,340 INFO L420 AbstractCegarLoop]: === Iteration 29 === 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 32 more)] === [2022-11-03 04:19:00,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:19:00,340 INFO L85 PathProgramCache]: Analyzing trace with hash 620831974, now seen corresponding path program 1 times [2022-11-03 04:19:00,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:19:00,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606088444] [2022-11-03 04:19:00,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:19:00,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:19:00,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:19:00,964 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-11-03 04:19:00,965 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:19:00,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606088444] [2022-11-03 04:19:00,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606088444] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:19:00,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:19:00,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 04:19:00,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743103685] [2022-11-03 04:19:00,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:19:00,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:19:00,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:19:00,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:19:00,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:19:00,967 INFO L87 Difference]: Start difference. First operand 13163 states and 19260 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-03 04:19:14,856 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 [] [2022-11-03 04:19:17,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:19:20,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:19:25,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:19:25,793 INFO L93 Difference]: Finished difference Result 25422 states and 37297 transitions. [2022-11-03 04:19:25,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:19:25,794 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 142 [2022-11-03 04:19:25,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:19:25,878 INFO L225 Difference]: With dead ends: 25422 [2022-11-03 04:19:25,878 INFO L226 Difference]: Without dead ends: 25420 [2022-11-03 04:19:25,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:19:25,888 INFO L413 NwaCegarLoop]: 5666 mSDtfsCounter, 4928 mSDsluCounter, 16935 mSDsCounter, 0 mSdLazyCounter, 1867 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4932 SdHoareTripleChecker+Valid, 21220 SdHoareTripleChecker+Invalid, 1873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1867 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.0s IncrementalHoareTripleChecker+Time [2022-11-03 04:19:25,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4932 Valid, 21220 Invalid, 1873 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1867 Invalid, 3 Unknown, 0 Unchecked, 21.0s Time] [2022-11-03 04:19:25,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25420 states. [2022-11-03 04:19:29,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25420 to 25339. [2022-11-03 04:19:29,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25339 states, 14900 states have (on average 1.2816778523489933) internal successors, (19097), 15224 states have internal predecessors, (19097), 8486 states have call successors, (8486), 1965 states have call predecessors, (8486), 1940 states have return successors, (9626), 8368 states have call predecessors, (9626), 8484 states have call successors, (9626) [2022-11-03 04:19:29,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25339 states to 25339 states and 37209 transitions. [2022-11-03 04:19:29,152 INFO L78 Accepts]: Start accepts. Automaton has 25339 states and 37209 transitions. Word has length 142 [2022-11-03 04:19:29,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:19:29,153 INFO L495 AbstractCegarLoop]: Abstraction has 25339 states and 37209 transitions. [2022-11-03 04:19:29,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-03 04:19:29,154 INFO L276 IsEmpty]: Start isEmpty. Operand 25339 states and 37209 transitions. [2022-11-03 04:19:29,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-03 04:19:29,157 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:19:29,157 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:19:29,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-03 04:19:29,157 INFO L420 AbstractCegarLoop]: === Iteration 30 === 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 32 more)] === [2022-11-03 04:19:29,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:19:29,158 INFO L85 PathProgramCache]: Analyzing trace with hash -460633987, now seen corresponding path program 1 times [2022-11-03 04:19:29,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:19:29,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343719479] [2022-11-03 04:19:29,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:19:29,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:19:29,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:19:29,599 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 04:19:29,599 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:19:29,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343719479] [2022-11-03 04:19:29,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343719479] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:19:29,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:19:29,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:19:29,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902705001] [2022-11-03 04:19:29,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:19:29,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:19:29,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:19:29,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:19:29,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:19:29,601 INFO L87 Difference]: Start difference. First operand 25339 states and 37209 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-03 04:19:41,154 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 [] [2022-11-03 04:19:42,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:19:42,636 INFO L93 Difference]: Finished difference Result 25339 states and 37209 transitions. [2022-11-03 04:19:42,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:19:42,636 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (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 121 [2022-11-03 04:19:42,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:19:42,709 INFO L225 Difference]: With dead ends: 25339 [2022-11-03 04:19:42,709 INFO L226 Difference]: Without dead ends: 25337 [2022-11-03 04:19:42,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:19:42,720 INFO L413 NwaCegarLoop]: 4539 mSDtfsCounter, 4984 mSDsluCounter, 5015 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4988 SdHoareTripleChecker+Valid, 9079 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2022-11-03 04:19:42,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4988 Valid, 9079 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 953 Invalid, 1 Unknown, 0 Unchecked, 9.8s Time] [2022-11-03 04:19:42,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25337 states. [2022-11-03 04:19:46,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25337 to 25337. [2022-11-03 04:19:46,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25337 states, 14899 states have (on average 1.281562520974562) internal successors, (19094), 15222 states have internal predecessors, (19094), 8486 states have call successors, (8486), 1965 states have call predecessors, (8486), 1940 states have return successors, (9626), 8368 states have call predecessors, (9626), 8484 states have call successors, (9626) [2022-11-03 04:19:46,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25337 states to 25337 states and 37206 transitions. [2022-11-03 04:19:46,259 INFO L78 Accepts]: Start accepts. Automaton has 25337 states and 37206 transitions. Word has length 121 [2022-11-03 04:19:46,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:19:46,259 INFO L495 AbstractCegarLoop]: Abstraction has 25337 states and 37206 transitions. [2022-11-03 04:19:46,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-03 04:19:46,260 INFO L276 IsEmpty]: Start isEmpty. Operand 25337 states and 37206 transitions. [2022-11-03 04:19:46,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-11-03 04:19:46,263 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:19:46,263 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:19:46,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-03 04:19:46,264 INFO L420 AbstractCegarLoop]: === Iteration 31 === 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 32 more)] === [2022-11-03 04:19:46,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:19:46,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1963082776, now seen corresponding path program 1 times [2022-11-03 04:19:46,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:19:46,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963670341] [2022-11-03 04:19:46,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:19:46,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:19:46,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:19:46,536 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 04:19:46,536 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:19:46,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963670341] [2022-11-03 04:19:46,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963670341] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:19:46,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:19:46,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:19:46,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920093461] [2022-11-03 04:19:46,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:19:46,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:19:46,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:19:46,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:19:46,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:19:46,539 INFO L87 Difference]: Start difference. First operand 25337 states and 37206 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-03 04:19:48,462 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 [] [2022-11-03 04:19:54,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:19:58,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:20:00,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:20:04,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:20:06,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:20:06,289 INFO L93 Difference]: Finished difference Result 25353 states and 37230 transitions. [2022-11-03 04:20:06,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:20:06,289 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (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 126 [2022-11-03 04:20:06,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:20:06,360 INFO L225 Difference]: With dead ends: 25353 [2022-11-03 04:20:06,360 INFO L226 Difference]: Without dead ends: 25351 [2022-11-03 04:20:06,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:20:06,370 INFO L413 NwaCegarLoop]: 4540 mSDtfsCounter, 4980 mSDsluCounter, 5043 mSDsCounter, 0 mSdLazyCounter, 956 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4986 SdHoareTripleChecker+Valid, 9103 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 956 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2022-11-03 04:20:06,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4986 Valid, 9103 Invalid, 959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 956 Invalid, 3 Unknown, 0 Unchecked, 15.9s Time] [2022-11-03 04:20:06,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25351 states. [2022-11-03 04:20:09,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25351 to 25335. [2022-11-03 04:20:09,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25335 states, 14898 states have (on average 1.2814471741173312) internal successors, (19091), 15220 states have internal predecessors, (19091), 8486 states have call successors, (8486), 1965 states have call predecessors, (8486), 1940 states have return successors, (9626), 8368 states have call predecessors, (9626), 8484 states have call successors, (9626) [2022-11-03 04:20:09,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25335 states to 25335 states and 37203 transitions. [2022-11-03 04:20:09,932 INFO L78 Accepts]: Start accepts. Automaton has 25335 states and 37203 transitions. Word has length 126 [2022-11-03 04:20:09,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:20:09,932 INFO L495 AbstractCegarLoop]: Abstraction has 25335 states and 37203 transitions. [2022-11-03 04:20:09,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-03 04:20:09,933 INFO L276 IsEmpty]: Start isEmpty. Operand 25335 states and 37203 transitions. [2022-11-03 04:20:09,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-11-03 04:20:09,936 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:20:09,936 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:20:09,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-03 04:20:09,937 INFO L420 AbstractCegarLoop]: === Iteration 32 === 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 32 more)] === [2022-11-03 04:20:09,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:20:09,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1760131816, now seen corresponding path program 1 times [2022-11-03 04:20:09,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:20:09,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998362584] [2022-11-03 04:20:09,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:20:09,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:20:10,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:20:10,306 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 04:20:10,307 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:20:10,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998362584] [2022-11-03 04:20:10,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998362584] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:20:10,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:20:10,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:20:10,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65586098] [2022-11-03 04:20:10,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:20:10,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:20:10,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:20:10,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:20:10,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:20:10,309 INFO L87 Difference]: Start difference. First operand 25335 states and 37203 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-03 04:20:19,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:20:20,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:20:23,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:20:26,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:20:28,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:20:30,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:20:33,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:20:35,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:20:36,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:20:36,991 INFO L93 Difference]: Finished difference Result 25595 states and 37477 transitions. [2022-11-03 04:20:36,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 04:20:36,992 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (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 131 [2022-11-03 04:20:36,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:20:37,056 INFO L225 Difference]: With dead ends: 25595 [2022-11-03 04:20:37,056 INFO L226 Difference]: Without dead ends: 25593 [2022-11-03 04:20:37,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:20:37,065 INFO L413 NwaCegarLoop]: 5746 mSDtfsCounter, 4902 mSDsluCounter, 11210 mSDsCounter, 0 mSdLazyCounter, 1430 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4906 SdHoareTripleChecker+Valid, 16009 SdHoareTripleChecker+Invalid, 1435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1430 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:20:37,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4906 Valid, 16009 Invalid, 1435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1430 Invalid, 4 Unknown, 0 Unchecked, 22.2s Time] [2022-11-03 04:20:37,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25593 states. [2022-11-03 04:20:40,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25593 to 25549. [2022-11-03 04:20:40,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25549 states, 15022 states have (on average 1.2791239515377446) internal successors, (19215), 15345 states have internal predecessors, (19215), 8539 states have call successors, (8539), 2001 states have call predecessors, (8539), 1977 states have return successors, (9679), 8421 states have call predecessors, (9679), 8537 states have call successors, (9679) [2022-11-03 04:20:40,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25549 states to 25549 states and 37433 transitions. [2022-11-03 04:20:40,233 INFO L78 Accepts]: Start accepts. Automaton has 25549 states and 37433 transitions. Word has length 131 [2022-11-03 04:20:40,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:20:40,234 INFO L495 AbstractCegarLoop]: Abstraction has 25549 states and 37433 transitions. [2022-11-03 04:20:40,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-03 04:20:40,234 INFO L276 IsEmpty]: Start isEmpty. Operand 25549 states and 37433 transitions. [2022-11-03 04:20:40,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-03 04:20:40,237 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:20:40,237 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 5, 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] [2022-11-03 04:20:40,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-03 04:20:40,237 INFO L420 AbstractCegarLoop]: === Iteration 33 === 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 32 more)] === [2022-11-03 04:20:40,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:20:40,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1369026716, now seen corresponding path program 1 times [2022-11-03 04:20:40,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:20:40,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079527399] [2022-11-03 04:20:40,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:20:40,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:20:40,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:20:40,601 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2022-11-03 04:20:40,602 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:20:40,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079527399] [2022-11-03 04:20:40,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079527399] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:20:40,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:20:40,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 04:20:40,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682732639] [2022-11-03 04:20:40,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:20:40,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:20:40,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:20:40,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:20:40,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:20:40,604 INFO L87 Difference]: Start difference. First operand 25549 states and 37433 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) [2022-11-03 04:20:45,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:20:48,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.93s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:21:01,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:21:04,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:21:06,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:21:06,158 INFO L93 Difference]: Finished difference Result 25603 states and 37470 transitions. [2022-11-03 04:21:06,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 04:21:06,159 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) Word has length 156 [2022-11-03 04:21:06,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:21:06,254 INFO L225 Difference]: With dead ends: 25603 [2022-11-03 04:21:06,254 INFO L226 Difference]: Without dead ends: 25601 [2022-11-03 04:21:06,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-03 04:21:06,267 INFO L413 NwaCegarLoop]: 4543 mSDtfsCounter, 51 mSDsluCounter, 15009 mSDsCounter, 0 mSdLazyCounter, 1919 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 18121 SdHoareTripleChecker+Invalid, 1924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1919 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:21:06,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 18121 Invalid, 1924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1919 Invalid, 4 Unknown, 0 Unchecked, 22.1s Time] [2022-11-03 04:21:06,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25601 states. [2022-11-03 04:21:09,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25601 to 25601. [2022-11-03 04:21:09,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25601 states, 15050 states have (on average 1.2783388704318936) internal successors, (19239), 15373 states have internal predecessors, (19239), 8543 states have call successors, (8543), 2021 states have call predecessors, (8543), 1997 states have return successors, (9683), 8425 states have call predecessors, (9683), 8541 states have call successors, (9683) [2022-11-03 04:21:09,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25601 states to 25601 states and 37465 transitions. [2022-11-03 04:21:09,580 INFO L78 Accepts]: Start accepts. Automaton has 25601 states and 37465 transitions. Word has length 156 [2022-11-03 04:21:09,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:21:09,581 INFO L495 AbstractCegarLoop]: Abstraction has 25601 states and 37465 transitions. [2022-11-03 04:21:09,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) [2022-11-03 04:21:09,581 INFO L276 IsEmpty]: Start isEmpty. Operand 25601 states and 37465 transitions. [2022-11-03 04:21:09,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-11-03 04:21:09,584 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:21:09,584 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:21:09,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-03 04:21:09,584 INFO L420 AbstractCegarLoop]: === Iteration 34 === 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 32 more)] === [2022-11-03 04:21:09,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:21:09,584 INFO L85 PathProgramCache]: Analyzing trace with hash 187308572, now seen corresponding path program 1 times [2022-11-03 04:21:09,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:21:09,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167317234] [2022-11-03 04:21:09,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:21:09,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:21:09,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:21:09,816 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 04:21:09,816 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:21:09,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167317234] [2022-11-03 04:21:09,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167317234] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:21:09,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:21:09,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:21:09,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249817945] [2022-11-03 04:21:09,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:21:09,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:21:09,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:21:09,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:21:09,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:21:09,819 INFO L87 Difference]: Start difference. First operand 25601 states and 37465 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-03 04:21:12,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:21:22,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:21:24,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:21:24,606 INFO L93 Difference]: Finished difference Result 25601 states and 37465 transitions. [2022-11-03 04:21:24,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:21:24,606 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (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 136 [2022-11-03 04:21:24,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:21:24,673 INFO L225 Difference]: With dead ends: 25601 [2022-11-03 04:21:24,674 INFO L226 Difference]: Without dead ends: 25599 [2022-11-03 04:21:24,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:21:24,683 INFO L413 NwaCegarLoop]: 4535 mSDtfsCounter, 4974 mSDsluCounter, 5010 mSDsCounter, 0 mSdLazyCounter, 951 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4980 SdHoareTripleChecker+Valid, 9071 SdHoareTripleChecker+Invalid, 953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 951 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:21:24,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4980 Valid, 9071 Invalid, 953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 951 Invalid, 2 Unknown, 0 Unchecked, 11.1s Time] [2022-11-03 04:21:24,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25599 states. [2022-11-03 04:21:28,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25599 to 25599. [2022-11-03 04:21:28,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25599 states, 15049 states have (on average 1.2782244667419762) internal successors, (19236), 15371 states have internal predecessors, (19236), 8543 states have call successors, (8543), 2021 states have call predecessors, (8543), 1997 states have return successors, (9683), 8425 states have call predecessors, (9683), 8541 states have call successors, (9683) [2022-11-03 04:21:28,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25599 states to 25599 states and 37462 transitions. [2022-11-03 04:21:28,147 INFO L78 Accepts]: Start accepts. Automaton has 25599 states and 37462 transitions. Word has length 136 [2022-11-03 04:21:28,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:21:28,148 INFO L495 AbstractCegarLoop]: Abstraction has 25599 states and 37462 transitions. [2022-11-03 04:21:28,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-03 04:21:28,148 INFO L276 IsEmpty]: Start isEmpty. Operand 25599 states and 37462 transitions. [2022-11-03 04:21:28,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-03 04:21:28,150 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:21:28,151 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 5, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:21:28,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-03 04:21:28,151 INFO L420 AbstractCegarLoop]: === Iteration 35 === 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 32 more)] === [2022-11-03 04:21:28,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:21:28,152 INFO L85 PathProgramCache]: Analyzing trace with hash 663784005, now seen corresponding path program 1 times [2022-11-03 04:21:28,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:21:28,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917660562] [2022-11-03 04:21:28,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:21:28,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:21:28,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:21:28,569 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-11-03 04:21:28,569 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:21:28,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917660562] [2022-11-03 04:21:28,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917660562] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:21:28,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:21:28,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 04:21:28,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765287116] [2022-11-03 04:21:28,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:21:28,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:21:28,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:21:28,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:21:28,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:21:28,571 INFO L87 Difference]: Start difference. First operand 25599 states and 37462 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-03 04:21:44,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:21:47,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:21:49,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:21:49,597 INFO L93 Difference]: Finished difference Result 25599 states and 37462 transitions. [2022-11-03 04:21:49,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 04:21:49,598 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 144 [2022-11-03 04:21:49,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:21:49,667 INFO L225 Difference]: With dead ends: 25599 [2022-11-03 04:21:49,667 INFO L226 Difference]: Without dead ends: 25597 [2022-11-03 04:21:49,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-03 04:21:49,676 INFO L413 NwaCegarLoop]: 4533 mSDtfsCounter, 43 mSDsluCounter, 14975 mSDsCounter, 0 mSdLazyCounter, 1909 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 18086 SdHoareTripleChecker+Invalid, 1912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1909 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:21:49,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 18086 Invalid, 1912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1909 Invalid, 2 Unknown, 0 Unchecked, 17.4s Time] [2022-11-03 04:21:49,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25597 states. [2022-11-03 04:21:52,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25597 to 25597. [2022-11-03 04:21:52,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25597 states, 15048 states have (on average 1.2777113237639552) internal successors, (19227), 15369 states have internal predecessors, (19227), 8543 states have call successors, (8543), 2021 states have call predecessors, (8543), 1997 states have return successors, (9683), 8425 states have call predecessors, (9683), 8541 states have call successors, (9683) [2022-11-03 04:21:52,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25597 states to 25597 states and 37453 transitions. [2022-11-03 04:21:52,985 INFO L78 Accepts]: Start accepts. Automaton has 25597 states and 37453 transitions. Word has length 144 [2022-11-03 04:21:52,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:21:52,986 INFO L495 AbstractCegarLoop]: Abstraction has 25597 states and 37453 transitions. [2022-11-03 04:21:52,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-03 04:21:52,986 INFO L276 IsEmpty]: Start isEmpty. Operand 25597 states and 37453 transitions. [2022-11-03 04:21:52,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-11-03 04:21:52,991 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:21:52,991 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:21:52,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-03 04:21:52,992 INFO L420 AbstractCegarLoop]: === Iteration 36 === 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 32 more)] === [2022-11-03 04:21:52,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:21:52,992 INFO L85 PathProgramCache]: Analyzing trace with hash 622577610, now seen corresponding path program 1 times [2022-11-03 04:21:52,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:21:52,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279565283] [2022-11-03 04:21:52,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:21:52,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:21:53,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:21:53,283 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 04:21:53,283 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:21:53,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279565283] [2022-11-03 04:21:53,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279565283] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:21:53,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:21:53,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:21:53,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768367765] [2022-11-03 04:21:53,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:21:53,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:21:53,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:21:53,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:21:53,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:21:53,286 INFO L87 Difference]: Start difference. First operand 25597 states and 37453 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-03 04:22:04,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:22:07,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:22:09,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:22:09,385 INFO L93 Difference]: Finished difference Result 25597 states and 37453 transitions. [2022-11-03 04:22:09,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:22:09,386 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (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 141 [2022-11-03 04:22:09,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:22:09,469 INFO L225 Difference]: With dead ends: 25597 [2022-11-03 04:22:09,469 INFO L226 Difference]: Without dead ends: 25595 [2022-11-03 04:22:09,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:22:09,479 INFO L413 NwaCegarLoop]: 4534 mSDtfsCounter, 4972 mSDsluCounter, 5037 mSDsCounter, 0 mSdLazyCounter, 957 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4976 SdHoareTripleChecker+Valid, 9091 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 957 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:22:09,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4976 Valid, 9091 Invalid, 959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 957 Invalid, 2 Unknown, 0 Unchecked, 12.4s Time] [2022-11-03 04:22:09,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25595 states. [2022-11-03 04:22:13,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25595 to 25595. [2022-11-03 04:22:13,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25595 states, 15047 states have (on average 1.2775968631620922) internal successors, (19224), 15367 states have internal predecessors, (19224), 8543 states have call successors, (8543), 2021 states have call predecessors, (8543), 1997 states have return successors, (9683), 8425 states have call predecessors, (9683), 8541 states have call successors, (9683) [2022-11-03 04:22:13,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25595 states to 25595 states and 37450 transitions. [2022-11-03 04:22:13,112 INFO L78 Accepts]: Start accepts. Automaton has 25595 states and 37450 transitions. Word has length 141 [2022-11-03 04:22:13,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:22:13,113 INFO L495 AbstractCegarLoop]: Abstraction has 25595 states and 37450 transitions. [2022-11-03 04:22:13,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-03 04:22:13,113 INFO L276 IsEmpty]: Start isEmpty. Operand 25595 states and 37450 transitions. [2022-11-03 04:22:13,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-11-03 04:22:13,118 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:22:13,118 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:22:13,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-03 04:22:13,119 INFO L420 AbstractCegarLoop]: === Iteration 37 === 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 32 more)] === [2022-11-03 04:22:13,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:22:13,119 INFO L85 PathProgramCache]: Analyzing trace with hash -305836024, now seen corresponding path program 1 times [2022-11-03 04:22:13,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:22:13,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875780835] [2022-11-03 04:22:13,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:22:13,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:22:13,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:22:13,417 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 04:22:13,417 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:22:13,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875780835] [2022-11-03 04:22:13,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875780835] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:22:13,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:22:13,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:22:13,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612669499] [2022-11-03 04:22:13,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:22:13,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:22:13,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:22:13,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:22:13,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:22:13,420 INFO L87 Difference]: Start difference. First operand 25595 states and 37450 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-03 04:22:24,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:22:27,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:22:29,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:22:29,039 INFO L93 Difference]: Finished difference Result 25595 states and 37450 transitions. [2022-11-03 04:22:29,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:22:29,040 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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 146 [2022-11-03 04:22:29,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:22:29,120 INFO L225 Difference]: With dead ends: 25595 [2022-11-03 04:22:29,120 INFO L226 Difference]: Without dead ends: 25347 [2022-11-03 04:22:29,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:22:29,137 INFO L413 NwaCegarLoop]: 4530 mSDtfsCounter, 4969 mSDsluCounter, 5007 mSDsCounter, 0 mSdLazyCounter, 952 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4971 SdHoareTripleChecker+Valid, 9061 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 952 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2022-11-03 04:22:29,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4971 Valid, 9061 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 952 Invalid, 2 Unknown, 0 Unchecked, 11.7s Time] [2022-11-03 04:22:29,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25347 states. [2022-11-03 04:22:33,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25347 to 25344. [2022-11-03 04:22:33,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25344 states, 14905 states have (on average 1.279570613887957) internal successors, (19072), 15219 states have internal predecessors, (19072), 8477 states have call successors, (8477), 1979 states have call predecessors, (8477), 1955 states have return successors, (9617), 8364 states have call predecessors, (9617), 8475 states have call successors, (9617) [2022-11-03 04:22:33,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25344 states to 25344 states and 37166 transitions. [2022-11-03 04:22:33,390 INFO L78 Accepts]: Start accepts. Automaton has 25344 states and 37166 transitions. Word has length 146 [2022-11-03 04:22:33,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:22:33,390 INFO L495 AbstractCegarLoop]: Abstraction has 25344 states and 37166 transitions. [2022-11-03 04:22:33,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-03 04:22:33,391 INFO L276 IsEmpty]: Start isEmpty. Operand 25344 states and 37166 transitions. [2022-11-03 04:22:33,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-11-03 04:22:33,397 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:22:33,397 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-03 04:22:33,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-03 04:22:33,398 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 32 more)] === [2022-11-03 04:22:33,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:22:33,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1080411499, now seen corresponding path program 1 times [2022-11-03 04:22:33,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:22:33,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419026923] [2022-11-03 04:22:33,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:22:33,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:22:33,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:22:34,583 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2022-11-03 04:22:34,584 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:22:34,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419026923] [2022-11-03 04:22:34,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419026923] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:22:34,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:22:34,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 04:22:34,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278982852] [2022-11-03 04:22:34,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:22:34,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:22:34,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:22:34,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:22:34,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:22:34,586 INFO L87 Difference]: Start difference. First operand 25344 states and 37166 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-03 04:22:38,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:22:45,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:22:46,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:22:51,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:22:54,081 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 [] [2022-11-03 04:22:55,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:22:55,819 INFO L93 Difference]: Finished difference Result 27798 states and 40217 transitions. [2022-11-03 04:22:55,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:22:55,819 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 194 [2022-11-03 04:22:55,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:22:56,010 INFO L225 Difference]: With dead ends: 27798 [2022-11-03 04:22:56,010 INFO L226 Difference]: Without dead ends: 27796 [2022-11-03 04:22:56,022 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 [2022-11-03 04:22:56,022 INFO L413 NwaCegarLoop]: 4726 mSDtfsCounter, 4771 mSDsluCounter, 11231 mSDsCounter, 0 mSdLazyCounter, 1536 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4782 SdHoareTripleChecker+Valid, 14910 SdHoareTripleChecker+Invalid, 1542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1536 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:22:56,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4782 Valid, 14910 Invalid, 1542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1536 Invalid, 3 Unknown, 0 Unchecked, 17.1s Time] [2022-11-03 04:22:56,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27796 states. [2022-11-03 04:22:59,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27796 to 27792. [2022-11-03 04:22:59,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27792 states, 16305 states have (on average 1.2722477767555964) internal successors, (20744), 16631 states have internal predecessors, (20744), 9153 states have call successors, (9153), 2359 states have call predecessors, (9153), 2327 states have return successors, (10309), 9028 states have call predecessors, (10309), 9151 states have call successors, (10309) [2022-11-03 04:22:59,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27792 states to 27792 states and 40206 transitions. [2022-11-03 04:22:59,989 INFO L78 Accepts]: Start accepts. Automaton has 27792 states and 40206 transitions. Word has length 194 [2022-11-03 04:22:59,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:22:59,989 INFO L495 AbstractCegarLoop]: Abstraction has 27792 states and 40206 transitions. [2022-11-03 04:22:59,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-03 04:22:59,990 INFO L276 IsEmpty]: Start isEmpty. Operand 27792 states and 40206 transitions. [2022-11-03 04:22:59,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-11-03 04:22:59,994 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:22:59,994 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 7, 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] [2022-11-03 04:22:59,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-03 04:22:59,994 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-03 04:22:59,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:22:59,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1423943433, now seen corresponding path program 1 times [2022-11-03 04:22:59,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:22:59,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216399381] [2022-11-03 04:22:59,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:22:59,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:23:00,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:23:00,324 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2022-11-03 04:23:00,324 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:23:00,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216399381] [2022-11-03 04:23:00,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216399381] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:23:00,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:23:00,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:23:00,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537007530] [2022-11-03 04:23:00,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:23:00,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:23:00,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:23:00,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:23:00,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:23:00,327 INFO L87 Difference]: Start difference. First operand 27792 states and 40206 transitions. Second operand has 6 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-03 04:23:11,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:23:16,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:23:18,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:23:20,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:23:22,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:23:24,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []