./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/bin/utaipan-I9t0OCRTmS --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 dedd6e816706b4c34868dad2bcfd19a22eb16a791a20ccdf71875d228cd47b87 --- 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-8393723 [2022-11-19 06:52:06,055 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:52:06,058 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:52:06,101 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:52:06,101 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:52:06,106 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:52:06,108 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:52:06,112 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:52:06,114 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:52:06,120 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:52:06,122 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:52:06,126 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:52:06,127 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:52:06,129 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:52:06,131 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:52:06,133 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:52:06,135 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:52:06,136 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:52:06,137 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:52:06,140 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:52:06,147 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:52:06,148 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:52:06,149 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:52:06,152 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:52:06,159 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:52:06,159 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:52:06,163 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:52:06,165 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:52:06,166 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:52:06,167 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:52:06,168 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:52:06,168 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:52:06,171 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:52:06,172 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:52:06,174 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:52:06,175 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:52:06,176 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:52:06,176 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:52:06,176 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:52:06,178 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:52:06,179 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:52:06,179 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 06:52:06,223 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:52:06,224 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:52:06,225 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:52:06,225 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:52:06,226 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:52:06,226 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:52:06,226 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:52:06,226 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:52:06,227 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:52:06,227 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 06:52:06,228 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:52:06,228 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:52:06,229 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 06:52:06,229 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 06:52:06,229 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:52:06,229 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 06:52:06,229 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 06:52:06,230 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 06:52:06,230 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:52:06,231 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 06:52:06,231 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:52:06,231 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:52:06,231 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:52:06,233 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:52:06,233 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:52:06,233 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:52:06,234 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:52:06,234 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:52:06,234 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:52:06,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:52:06,235 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:52:06,235 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 06:52:06,235 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:52:06,236 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:52:06,236 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 06:52:06,236 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 06:52:06,237 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:52:06,237 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:52:06,237 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_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dedd6e816706b4c34868dad2bcfd19a22eb16a791a20ccdf71875d228cd47b87 [2022-11-19 06:52:06,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:52:06,536 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:52:06,540 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:52:06,541 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:52:06,542 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:52:06,543 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i [2022-11-19 06:52:06,631 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/bin/utaipan-I9t0OCRTmS/data/1e19721d2/8f02307427bb4f7f9db1c6373d2ee9d0/FLAGa51f4e291 [2022-11-19 06:52:07,512 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:52:07,513 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i [2022-11-19 06:52:07,561 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/bin/utaipan-I9t0OCRTmS/data/1e19721d2/8f02307427bb4f7f9db1c6373d2ee9d0/FLAGa51f4e291 [2022-11-19 06:52:07,979 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/bin/utaipan-I9t0OCRTmS/data/1e19721d2/8f02307427bb4f7f9db1c6373d2ee9d0 [2022-11-19 06:52:07,983 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:52:07,986 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:52:07,989 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:52:07,990 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:52:07,994 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:52:07,995 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:52:07" (1/1) ... [2022-11-19 06:52:07,996 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@885123 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:07, skipping insertion in model container [2022-11-19 06:52:07,997 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:52:07" (1/1) ... [2022-11-19 06:52:08,004 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:52:08,183 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:52:12,358 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373036,373049] [2022-11-19 06:52:12,364 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373181,373194] [2022-11-19 06:52:12,364 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373327,373340] [2022-11-19 06:52:12,365 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373492,373505] [2022-11-19 06:52:12,365 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373650,373663] [2022-11-19 06:52:12,365 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373808,373821] [2022-11-19 06:52:12,366 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373966,373979] [2022-11-19 06:52:12,366 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374126,374139] [2022-11-19 06:52:12,367 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374285,374298] [2022-11-19 06:52:12,367 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374424,374437] [2022-11-19 06:52:12,368 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374566,374579] [2022-11-19 06:52:12,368 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374715,374728] [2022-11-19 06:52:12,369 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374854,374867] [2022-11-19 06:52:12,369 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375009,375022] [2022-11-19 06:52:12,369 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375169,375182] [2022-11-19 06:52:12,370 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375320,375333] [2022-11-19 06:52:12,370 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375471,375484] [2022-11-19 06:52:12,371 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375623,375636] [2022-11-19 06:52:12,371 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375772,375785] [2022-11-19 06:52:12,372 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375920,375933] [2022-11-19 06:52:12,383 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376077,376090] [2022-11-19 06:52:12,384 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376226,376239] [2022-11-19 06:52:12,384 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376382,376395] [2022-11-19 06:52:12,386 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376535,376548] [2022-11-19 06:52:12,387 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376681,376694] [2022-11-19 06:52:12,387 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376824,376837] [2022-11-19 06:52:12,388 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376976,376989] [2022-11-19 06:52:12,389 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377122,377135] [2022-11-19 06:52:12,390 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377267,377280] [2022-11-19 06:52:12,390 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377421,377434] [2022-11-19 06:52:12,393 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377572,377585] [2022-11-19 06:52:12,393 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377727,377740] [2022-11-19 06:52:12,394 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377879,377892] [2022-11-19 06:52:12,395 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378034,378047] [2022-11-19 06:52:12,395 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378198,378211] [2022-11-19 06:52:12,396 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378354,378367] [2022-11-19 06:52:12,396 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378518,378531] [2022-11-19 06:52:12,397 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378660,378673] [2022-11-19 06:52:12,397 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378818,378831] [2022-11-19 06:52:12,398 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378985,378998] [2022-11-19 06:52:12,398 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379144,379157] [2022-11-19 06:52:12,399 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379303,379316] [2022-11-19 06:52:12,399 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379452,379465] [2022-11-19 06:52:12,401 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379599,379612] [2022-11-19 06:52:12,402 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379738,379751] [2022-11-19 06:52:12,407 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379901,379914] [2022-11-19 06:52:12,408 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380067,380080] [2022-11-19 06:52:12,409 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380231,380244] [2022-11-19 06:52:12,410 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380396,380409] [2022-11-19 06:52:12,411 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380561,380574] [2022-11-19 06:52:12,412 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380727,380740] [2022-11-19 06:52:12,412 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380892,380905] [2022-11-19 06:52:12,413 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381059,381072] [2022-11-19 06:52:12,413 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381219,381232] [2022-11-19 06:52:12,414 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381381,381394] [2022-11-19 06:52:12,415 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381540,381553] [2022-11-19 06:52:12,416 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381686,381699] [2022-11-19 06:52:12,417 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381829,381842] [2022-11-19 06:52:12,418 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381973,381986] [2022-11-19 06:52:12,423 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382116,382129] [2022-11-19 06:52:12,424 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382260,382273] [2022-11-19 06:52:12,424 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382401,382414] [2022-11-19 06:52:12,425 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382539,382552] [2022-11-19 06:52:12,426 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382697,382710] [2022-11-19 06:52:12,426 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382856,382869] [2022-11-19 06:52:12,427 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383012,383025] [2022-11-19 06:52:12,427 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383161,383174] [2022-11-19 06:52:12,428 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383313,383326] [2022-11-19 06:52:12,428 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383464,383477] [2022-11-19 06:52:12,429 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383613,383626] [2022-11-19 06:52:12,429 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383765,383778] [2022-11-19 06:52:12,430 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383913,383926] [2022-11-19 06:52:12,430 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384066,384079] [2022-11-19 06:52:12,439 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384217,384230] [2022-11-19 06:52:12,440 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384367,384380] [2022-11-19 06:52:12,440 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384514,384527] [2022-11-19 06:52:12,441 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384665,384678] [2022-11-19 06:52:12,441 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384816,384829] [2022-11-19 06:52:12,442 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384964,384977] [2022-11-19 06:52:12,442 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385130,385143] [2022-11-19 06:52:12,443 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385299,385312] [2022-11-19 06:52:12,446 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385466,385479] [2022-11-19 06:52:12,446 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385634,385647] [2022-11-19 06:52:12,447 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385784,385797] [2022-11-19 06:52:12,447 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385931,385944] [2022-11-19 06:52:12,448 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386092,386105] [2022-11-19 06:52:12,448 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386262,386275] [2022-11-19 06:52:12,448 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386424,386437] [2022-11-19 06:52:12,465 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:52:12,500 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:52:12,946 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373036,373049] [2022-11-19 06:52:12,948 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373181,373194] [2022-11-19 06:52:12,954 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373327,373340] [2022-11-19 06:52:12,954 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373492,373505] [2022-11-19 06:52:12,955 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373650,373663] [2022-11-19 06:52:12,955 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373808,373821] [2022-11-19 06:52:12,956 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373966,373979] [2022-11-19 06:52:12,956 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374126,374139] [2022-11-19 06:52:12,956 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374285,374298] [2022-11-19 06:52:12,957 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374424,374437] [2022-11-19 06:52:12,957 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374566,374579] [2022-11-19 06:52:12,958 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374715,374728] [2022-11-19 06:52:12,958 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374854,374867] [2022-11-19 06:52:12,959 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375009,375022] [2022-11-19 06:52:12,959 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375169,375182] [2022-11-19 06:52:12,959 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375320,375333] [2022-11-19 06:52:12,960 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375471,375484] [2022-11-19 06:52:12,960 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375623,375636] [2022-11-19 06:52:12,961 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375772,375785] [2022-11-19 06:52:12,962 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375920,375933] [2022-11-19 06:52:12,962 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376077,376090] [2022-11-19 06:52:12,963 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376226,376239] [2022-11-19 06:52:12,963 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376382,376395] [2022-11-19 06:52:12,965 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376535,376548] [2022-11-19 06:52:12,965 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376681,376694] [2022-11-19 06:52:12,966 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376824,376837] [2022-11-19 06:52:12,966 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376976,376989] [2022-11-19 06:52:12,967 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377122,377135] [2022-11-19 06:52:12,967 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377267,377280] [2022-11-19 06:52:12,968 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377421,377434] [2022-11-19 06:52:12,969 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377572,377585] [2022-11-19 06:52:12,969 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377727,377740] [2022-11-19 06:52:12,970 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377879,377892] [2022-11-19 06:52:12,971 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378034,378047] [2022-11-19 06:52:12,971 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378198,378211] [2022-11-19 06:52:12,972 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378354,378367] [2022-11-19 06:52:12,973 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378518,378531] [2022-11-19 06:52:12,974 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378660,378673] [2022-11-19 06:52:12,974 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378818,378831] [2022-11-19 06:52:12,975 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378985,378998] [2022-11-19 06:52:12,976 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379144,379157] [2022-11-19 06:52:12,976 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379303,379316] [2022-11-19 06:52:12,977 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379452,379465] [2022-11-19 06:52:12,978 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379599,379612] [2022-11-19 06:52:12,978 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379738,379751] [2022-11-19 06:52:12,979 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379901,379914] [2022-11-19 06:52:12,980 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380067,380080] [2022-11-19 06:52:12,980 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380231,380244] [2022-11-19 06:52:12,981 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380396,380409] [2022-11-19 06:52:12,981 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380561,380574] [2022-11-19 06:52:12,981 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380727,380740] [2022-11-19 06:52:12,982 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380892,380905] [2022-11-19 06:52:12,983 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381059,381072] [2022-11-19 06:52:12,984 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381219,381232] [2022-11-19 06:52:12,985 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381381,381394] [2022-11-19 06:52:12,987 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381540,381553] [2022-11-19 06:52:12,990 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381686,381699] [2022-11-19 06:52:12,990 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381829,381842] [2022-11-19 06:52:12,991 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381973,381986] [2022-11-19 06:52:12,991 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382116,382129] [2022-11-19 06:52:12,992 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382260,382273] [2022-11-19 06:52:12,993 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382401,382414] [2022-11-19 06:52:13,052 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382539,382552] [2022-11-19 06:52:13,052 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382697,382710] [2022-11-19 06:52:13,053 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382856,382869] [2022-11-19 06:52:13,053 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383012,383025] [2022-11-19 06:52:13,053 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383161,383174] [2022-11-19 06:52:13,054 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383313,383326] [2022-11-19 06:52:13,054 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383464,383477] [2022-11-19 06:52:13,054 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383613,383626] [2022-11-19 06:52:13,055 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383765,383778] [2022-11-19 06:52:13,055 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383913,383926] [2022-11-19 06:52:13,055 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384066,384079] [2022-11-19 06:52:13,056 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384217,384230] [2022-11-19 06:52:13,056 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384367,384380] [2022-11-19 06:52:13,056 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384514,384527] [2022-11-19 06:52:13,057 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384665,384678] [2022-11-19 06:52:13,057 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384816,384829] [2022-11-19 06:52:13,057 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384964,384977] [2022-11-19 06:52:13,058 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385130,385143] [2022-11-19 06:52:13,058 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385299,385312] [2022-11-19 06:52:13,058 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385466,385479] [2022-11-19 06:52:13,059 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385634,385647] [2022-11-19 06:52:13,059 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385784,385797] [2022-11-19 06:52:13,059 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385931,385944] [2022-11-19 06:52:13,060 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386092,386105] [2022-11-19 06:52:13,060 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386262,386275] [2022-11-19 06:52:13,060 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386424,386437] [2022-11-19 06:52:13,066 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:52:13,312 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:52:13,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:13 WrapperNode [2022-11-19 06:52:13,313 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:52:13,314 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:52:13,314 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:52:13,314 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:52:13,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:13" (1/1) ... [2022-11-19 06:52:13,487 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:13" (1/1) ... [2022-11-19 06:52:13,732 INFO L138 Inliner]: procedures = 675, calls = 2887, calls flagged for inlining = 316, calls inlined = 216, statements flattened = 5834 [2022-11-19 06:52:13,733 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:52:13,734 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:52:13,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:52:13,734 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:52:13,744 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:13" (1/1) ... [2022-11-19 06:52:13,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:13" (1/1) ... [2022-11-19 06:52:13,781 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:13" (1/1) ... [2022-11-19 06:52:13,782 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:13" (1/1) ... [2022-11-19 06:52:14,003 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:13" (1/1) ... [2022-11-19 06:52:14,021 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:13" (1/1) ... [2022-11-19 06:52:14,041 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:13" (1/1) ... [2022-11-19 06:52:14,054 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:13" (1/1) ... [2022-11-19 06:52:14,086 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:52:14,087 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:52:14,087 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:52:14,087 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:52:14,088 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:13" (1/1) ... [2022-11-19 06:52:14,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:52:14,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:52:14,124 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:52:14,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:52:14,168 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_frontend_closed [2022-11-19 06:52:14,168 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_frontend_closed [2022-11-19 06:52:14,168 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-19 06:52:14,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-11-19 06:52:14,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-11-19 06:52:14,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 06:52:14,168 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 06:52:14,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 06:52:14,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 06:52:14,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-19 06:52:14,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-19 06:52:14,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_del_gendisk [2022-11-19 06:52:14,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_del_gendisk [2022-11-19 06:52:14,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-19 06:52:14,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-19 06:52:14,169 INFO L130 BoogieDeclarations]: Found specification of procedure submit_bio [2022-11-19 06:52:14,170 INFO L138 BoogieDeclarations]: Found implementation of procedure submit_bio [2022-11-19 06:52:14,170 INFO L130 BoogieDeclarations]: Found specification of procedure queue_flag_set_unlocked [2022-11-19 06:52:14,170 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_flag_set_unlocked [2022-11-19 06:52:14,170 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_cancel_free_callback [2022-11-19 06:52:14,170 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_cancel_free_callback [2022-11-19 06:52:14,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-11-19 06:52:14,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-11-19 06:52:14,170 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access [2022-11-19 06:52:14,170 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access [2022-11-19 06:52:14,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-11-19 06:52:14,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-11-19 06:52:14,171 INFO L130 BoogieDeclarations]: Found specification of procedure do_blkif_request [2022-11-19 06:52:14,171 INFO L138 BoogieDeclarations]: Found implementation of procedure do_blkif_request [2022-11-19 06:52:14,171 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2022-11-19 06:52:14,171 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2022-11-19 06:52:14,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-19 06:52:14,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-19 06:52:14,171 INFO L130 BoogieDeclarations]: Found specification of procedure talk_to_blkback [2022-11-19 06:52:14,172 INFO L138 BoogieDeclarations]: Found implementation of procedure talk_to_blkback [2022-11-19 06:52:14,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-19 06:52:14,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-19 06:52:14,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-11-19 06:52:14,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-11-19 06:52:14,172 INFO L130 BoogieDeclarations]: Found specification of procedure blkfront_setup_indirect [2022-11-19 06:52:14,172 INFO L138 BoogieDeclarations]: Found implementation of procedure blkfront_setup_indirect [2022-11-19 06:52:14,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 06:52:14,173 INFO L130 BoogieDeclarations]: Found specification of procedure pfn_to_mfn [2022-11-19 06:52:14,173 INFO L138 BoogieDeclarations]: Found implementation of procedure pfn_to_mfn [2022-11-19 06:52:14,173 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-19 06:52:14,173 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-19 06:52:14,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-11-19 06:52:14,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-11-19 06:52:14,173 INFO L130 BoogieDeclarations]: Found specification of procedure xlvbd_release_gendisk [2022-11-19 06:52:14,173 INFO L138 BoogieDeclarations]: Found implementation of procedure xlvbd_release_gendisk [2022-11-19 06:52:14,174 INFO L130 BoogieDeclarations]: Found specification of procedure xlbd_release_minors [2022-11-19 06:52:14,174 INFO L138 BoogieDeclarations]: Found implementation of procedure xlbd_release_minors [2022-11-19 06:52:14,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 06:52:14,174 INFO L130 BoogieDeclarations]: Found specification of procedure xlvbd_flush [2022-11-19 06:52:14,174 INFO L138 BoogieDeclarations]: Found implementation of procedure xlvbd_flush [2022-11-19 06:52:14,174 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-19 06:52:14,174 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-19 06:52:14,174 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2022-11-19 06:52:14,175 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2022-11-19 06:52:14,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 06:52:14,175 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_switch_state [2022-11-19 06:52:14,175 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_switch_state [2022-11-19 06:52:14,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-11-19 06:52:14,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-11-19 06:52:14,175 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2022-11-19 06:52:14,175 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2022-11-19 06:52:14,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-19 06:52:14,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-19 06:52:14,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_112 [2022-11-19 06:52:14,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_112 [2022-11-19 06:52:14,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-19 06:52:14,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-19 06:52:14,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 06:52:14,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-11-19 06:52:14,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-11-19 06:52:14,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-19 06:52:14,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-19 06:52:14,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 06:52:14,177 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 06:52:14,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-11-19 06:52:14,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-11-19 06:52:14,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-19 06:52:14,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-19 06:52:14,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-19 06:52:14,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-19 06:52:14,178 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2022-11-19 06:52:14,178 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2022-11-19 06:52:14,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-11-19 06:52:14,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-11-19 06:52:14,178 INFO L130 BoogieDeclarations]: Found specification of procedure get_grant [2022-11-19 06:52:14,178 INFO L138 BoogieDeclarations]: Found implementation of procedure get_grant [2022-11-19 06:52:14,178 INFO L130 BoogieDeclarations]: Found specification of procedure sg_next [2022-11-19 06:52:14,178 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_next [2022-11-19 06:52:14,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-19 06:52:14,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-19 06:52:14,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 06:52:14,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2022-11-19 06:52:14,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2022-11-19 06:52:14,179 INFO L130 BoogieDeclarations]: Found specification of procedure get_phys_to_machine [2022-11-19 06:52:14,179 INFO L138 BoogieDeclarations]: Found implementation of procedure get_phys_to_machine [2022-11-19 06:52:14,179 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-19 06:52:14,179 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-19 06:52:14,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 06:52:14,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_bd_mutex_of_block_device [2022-11-19 06:52:14,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_bd_mutex_of_block_device [2022-11-19 06:52:14,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-19 06:52:14,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-19 06:52:14,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 06:52:14,180 INFO L130 BoogieDeclarations]: Found specification of procedure __blk_end_request_all [2022-11-19 06:52:14,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __blk_end_request_all [2022-11-19 06:52:14,180 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-19 06:52:14,180 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-19 06:52:14,180 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-19 06:52:14,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_io_lock_of_blkfront_info [2022-11-19 06:52:14,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_io_lock_of_blkfront_info [2022-11-19 06:52:14,181 INFO L130 BoogieDeclarations]: Found specification of procedure kmap_atomic [2022-11-19 06:52:14,181 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap_atomic [2022-11-19 06:52:14,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_blkfront_mutex [2022-11-19 06:52:14,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_blkfront_mutex [2022-11-19 06:52:14,181 INFO L130 BoogieDeclarations]: Found specification of procedure blkif_free [2022-11-19 06:52:14,181 INFO L138 BoogieDeclarations]: Found implementation of procedure blkif_free [2022-11-19 06:52:14,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-11-19 06:52:14,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-11-19 06:52:14,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2022-11-19 06:52:14,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2022-11-19 06:52:14,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:52:14,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:52:14,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_blkfront_info [2022-11-19 06:52:14,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_blkfront_info [2022-11-19 06:52:14,182 INFO L130 BoogieDeclarations]: Found specification of procedure blk_stop_queue [2022-11-19 06:52:14,182 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_stop_queue [2022-11-19 06:52:14,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_mutex_of_blkfront_info [2022-11-19 06:52:14,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_mutex_of_blkfront_info [2022-11-19 06:52:14,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 06:52:14,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 06:52:14,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 06:52:14,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 06:52:14,183 INFO L130 BoogieDeclarations]: Found specification of procedure bdput [2022-11-19 06:52:14,183 INFO L138 BoogieDeclarations]: Found implementation of procedure bdput [2022-11-19 06:52:14,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-19 06:52:14,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-19 06:52:14,183 INFO L130 BoogieDeclarations]: Found specification of procedure del_gendisk [2022-11-19 06:52:14,183 INFO L138 BoogieDeclarations]: Found implementation of procedure del_gendisk [2022-11-19 06:52:14,183 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_transaction_end [2022-11-19 06:52:14,183 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_transaction_end [2022-11-19 06:52:14,183 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2022-11-19 06:52:14,183 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2022-11-19 06:52:14,184 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_sectors [2022-11-19 06:52:14,184 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_sectors [2022-11-19 06:52:14,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 06:52:14,184 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 06:52:14,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-11-19 06:52:14,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-11-19 06:52:14,184 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_pos [2022-11-19 06:52:14,184 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_pos [2022-11-19 06:52:14,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-11-19 06:52:14,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-11-19 06:52:14,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 06:52:14,185 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-19 06:52:14,185 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-19 06:52:14,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-19 06:52:14,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-19 06:52:14,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 06:52:14,185 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2022-11-19 06:52:14,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2022-11-19 06:52:14,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_107 [2022-11-19 06:52:14,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_107 [2022-11-19 06:52:14,186 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-11-19 06:52:14,186 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-11-19 06:52:14,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 06:52:14,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_bd_mutex_of_block_device [2022-11-19 06:52:14,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_bd_mutex_of_block_device [2022-11-19 06:52:14,186 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-19 06:52:14,186 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-19 06:52:14,186 INFO L130 BoogieDeclarations]: Found specification of procedure get_capacity [2022-11-19 06:52:14,186 INFO L138 BoogieDeclarations]: Found implementation of procedure get_capacity [2022-11-19 06:52:14,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-19 06:52:14,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-19 06:52:14,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_blkfront_mutex [2022-11-19 06:52:14,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_blkfront_mutex [2022-11-19 06:52:14,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-19 06:52:14,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-19 06:52:14,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-19 06:52:14,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-19 06:52:14,187 INFO L130 BoogieDeclarations]: Found specification of procedure blk_requeue_request [2022-11-19 06:52:14,188 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_requeue_request [2022-11-19 06:52:14,188 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-19 06:52:14,188 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-19 06:52:14,188 INFO L130 BoogieDeclarations]: Found specification of procedure bio_segments [2022-11-19 06:52:14,188 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_segments [2022-11-19 06:52:14,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-19 06:52:14,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-19 06:52:14,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-19 06:52:14,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-19 06:52:14,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-11-19 06:52:14,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-11-19 06:52:14,189 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-19 06:52:14,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-19 06:52:14,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_io_lock_of_blkfront_info [2022-11-19 06:52:14,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_io_lock_of_blkfront_info [2022-11-19 06:52:14,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-19 06:52:14,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-19 06:52:14,189 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 06:52:14,190 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 06:52:14,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-19 06:52:14,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-19 06:52:14,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 06:52:14,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-19 06:52:14,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-19 06:52:14,190 INFO L130 BoogieDeclarations]: Found specification of procedure kick_pending_request_queues [2022-11-19 06:52:14,190 INFO L138 BoogieDeclarations]: Found implementation of procedure kick_pending_request_queues [2022-11-19 06:52:14,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 06:52:14,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 06:52:14,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_96 [2022-11-19 06:52:14,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_96 [2022-11-19 06:52:14,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-19 06:52:14,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-19 06:52:14,191 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2022-11-19 06:52:14,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_97 [2022-11-19 06:52:14,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_97 [2022-11-19 06:52:14,192 INFO L130 BoogieDeclarations]: Found specification of procedure bdget_disk [2022-11-19 06:52:14,192 INFO L138 BoogieDeclarations]: Found implementation of procedure bdget_disk [2022-11-19 06:52:14,192 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_merge [2022-11-19 06:52:14,192 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_merge [2022-11-19 06:52:14,192 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_segments [2022-11-19 06:52:14,192 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_segments [2022-11-19 06:52:14,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-19 06:52:14,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-19 06:52:14,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-19 06:52:14,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-19 06:52:14,193 INFO L130 BoogieDeclarations]: Found specification of procedure encode_disk_name [2022-11-19 06:52:14,193 INFO L138 BoogieDeclarations]: Found implementation of procedure encode_disk_name [2022-11-19 06:52:14,193 INFO L130 BoogieDeclarations]: Found specification of procedure __kunmap_atomic [2022-11-19 06:52:14,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __kunmap_atomic [2022-11-19 06:52:14,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 06:52:14,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_111 [2022-11-19 06:52:14,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_111 [2022-11-19 06:52:14,957 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:52:14,961 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:52:15,587 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 06:52:31,465 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:52:33,131 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:52:33,132 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-19 06:52:33,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:52:33 BoogieIcfgContainer [2022-11-19 06:52:33,141 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:52:33,143 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:52:33,143 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:52:33,147 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:52:33,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:52:07" (1/3) ... [2022-11-19 06:52:33,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d969a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:52:33, skipping insertion in model container [2022-11-19 06:52:33,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:52:13" (2/3) ... [2022-11-19 06:52:33,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d969a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:52:33, skipping insertion in model container [2022-11-19 06:52:33,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:52:33" (3/3) ... [2022-11-19 06:52:33,161 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i [2022-11-19 06:52:33,187 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:52:33,188 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2022-11-19 06:52:33,304 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 06:52:33,314 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;@27394159, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 06:52:33,314 INFO L358 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2022-11-19 06:52:33,324 INFO L276 IsEmpty]: Start isEmpty. Operand has 1266 states, 749 states have (on average 1.341789052069426) internal successors, (1005), 809 states have internal predecessors, (1005), 374 states have call successors, (374), 109 states have call predecessors, (374), 108 states have return successors, (370), 368 states have call predecessors, (370), 370 states have call successors, (370) [2022-11-19 06:52:33,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-19 06:52:33,337 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:52:33,338 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:52:33,338 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 06:52:33,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:52:33,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1419607478, now seen corresponding path program 1 times [2022-11-19 06:52:33,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:52:33,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938751451] [2022-11-19 06:52:33,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:52:33,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:52:33,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:52:34,333 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 06:52:34,334 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:52:34,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938751451] [2022-11-19 06:52:34,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938751451] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:52:34,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:52:34,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:52:34,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982973374] [2022-11-19 06:52:34,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:52:34,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:52:34,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:52:34,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:52:34,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:52:34,393 INFO L87 Difference]: Start difference. First operand has 1266 states, 749 states have (on average 1.341789052069426) internal successors, (1005), 809 states have internal predecessors, (1005), 374 states have call successors, (374), 109 states have call predecessors, (374), 108 states have return successors, (370), 368 states have call predecessors, (370), 370 states have call successors, (370) Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-19 06:52:37,289 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 [] [2022-11-19 06:52:40,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:52:44,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:52:45,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:52:45,439 INFO L93 Difference]: Finished difference Result 3605 states and 5176 transitions. [2022-11-19 06:52:45,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:52:45,444 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 38 [2022-11-19 06:52:45,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:52:45,475 INFO L225 Difference]: With dead ends: 3605 [2022-11-19 06:52:45,475 INFO L226 Difference]: Without dead ends: 2342 [2022-11-19 06:52:45,486 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 [2022-11-19 06:52:45,489 INFO L413 NwaCegarLoop]: 1993 mSDtfsCounter, 1481 mSDsluCounter, 3420 mSDsCounter, 0 mSdLazyCounter, 867 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 5413 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 867 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-11-19 06:52:45,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1484 Valid, 5413 Invalid, 871 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 867 Invalid, 3 Unknown, 0 Unchecked, 10.6s Time] [2022-11-19 06:52:45,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2342 states. [2022-11-19 06:52:45,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2342 to 2167. [2022-11-19 06:52:45,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2167 states, 1286 states have (on average 1.286936236391913) internal successors, (1655), 1366 states have internal predecessors, (1655), 656 states have call successors, (656), 192 states have call predecessors, (656), 191 states have return successors, (655), 645 states have call predecessors, (655), 654 states have call successors, (655) [2022-11-19 06:52:45,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2167 states to 2167 states and 2966 transitions. [2022-11-19 06:52:45,719 INFO L78 Accepts]: Start accepts. Automaton has 2167 states and 2966 transitions. Word has length 38 [2022-11-19 06:52:45,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:52:45,720 INFO L495 AbstractCegarLoop]: Abstraction has 2167 states and 2966 transitions. [2022-11-19 06:52:45,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-19 06:52:45,721 INFO L276 IsEmpty]: Start isEmpty. Operand 2167 states and 2966 transitions. [2022-11-19 06:52:45,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-19 06:52:45,723 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:52:45,723 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:52:45,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 06:52:45,724 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 06:52:45,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:52:45,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1442816027, now seen corresponding path program 1 times [2022-11-19 06:52:45,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:52:45,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774096878] [2022-11-19 06:52:45,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:52:45,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:52:45,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:52:46,186 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 06:52:46,186 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:52:46,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774096878] [2022-11-19 06:52:46,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774096878] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:52:46,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:52:46,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:52:46,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662581965] [2022-11-19 06:52:46,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:52:46,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:52:46,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:52:46,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:52:46,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:52:46,189 INFO L87 Difference]: Start difference. First operand 2167 states and 2966 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, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-19 06:52:48,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:52:50,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:52:52,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:52:54,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:52:57,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:53:00,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:53:01,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:53:01,246 INFO L93 Difference]: Finished difference Result 4203 states and 5775 transitions. [2022-11-19 06:53:01,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:53:01,247 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, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 43 [2022-11-19 06:53:01,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:53:01,274 INFO L225 Difference]: With dead ends: 4203 [2022-11-19 06:53:01,275 INFO L226 Difference]: Without dead ends: 4201 [2022-11-19 06:53:01,280 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 [2022-11-19 06:53:01,281 INFO L413 NwaCegarLoop]: 1781 mSDtfsCounter, 1575 mSDsluCounter, 3194 mSDsCounter, 0 mSdLazyCounter, 766 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1578 SdHoareTripleChecker+Valid, 4975 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 766 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2022-11-19 06:53:01,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1578 Valid, 4975 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 766 Invalid, 4 Unknown, 0 Unchecked, 14.7s Time] [2022-11-19 06:53:01,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4201 states. [2022-11-19 06:53:01,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4201 to 4014. [2022-11-19 06:53:01,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4014 states, 2392 states have (on average 1.2909698996655519) internal successors, (3088), 2523 states have internal predecessors, (3088), 1235 states have call successors, (1235), 354 states have call predecessors, (1235), 353 states have return successors, (1252), 1206 states have call predecessors, (1252), 1233 states have call successors, (1252) [2022-11-19 06:53:01,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4014 states to 4014 states and 5575 transitions. [2022-11-19 06:53:01,588 INFO L78 Accepts]: Start accepts. Automaton has 4014 states and 5575 transitions. Word has length 43 [2022-11-19 06:53:01,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:53:01,589 INFO L495 AbstractCegarLoop]: Abstraction has 4014 states and 5575 transitions. [2022-11-19 06:53:01,589 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, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-19 06:53:01,590 INFO L276 IsEmpty]: Start isEmpty. Operand 4014 states and 5575 transitions. [2022-11-19 06:53:01,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-19 06:53:01,599 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:53:01,599 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:53:01,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 06:53:01,600 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 06:53:01,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:53:01,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1510059166, now seen corresponding path program 1 times [2022-11-19 06:53:01,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:53:01,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769235632] [2022-11-19 06:53:01,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:53:01,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:53:01,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:53:02,043 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 06:53:02,044 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:53:02,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769235632] [2022-11-19 06:53:02,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769235632] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:53:02,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:53:02,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:53:02,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866274583] [2022-11-19 06:53:02,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:53:02,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:53:02,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:53:02,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:53:02,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:53:02,046 INFO L87 Difference]: Start difference. First operand 4014 states and 5575 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) [2022-11-19 06:53:03,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:53:05,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:53:09,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:53:13,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:53:16,562 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 [] [2022-11-19 06:53:17,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:53:17,793 INFO L93 Difference]: Finished difference Result 5212 states and 7201 transitions. [2022-11-19 06:53:17,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:53:17,794 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 48 [2022-11-19 06:53:17,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:53:17,830 INFO L225 Difference]: With dead ends: 5212 [2022-11-19 06:53:17,830 INFO L226 Difference]: Without dead ends: 5210 [2022-11-19 06:53:17,835 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 [2022-11-19 06:53:17,836 INFO L413 NwaCegarLoop]: 1794 mSDtfsCounter, 1639 mSDsluCounter, 3199 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 3 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1642 SdHoareTripleChecker+Valid, 4993 SdHoareTripleChecker+Invalid, 765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2022-11-19 06:53:17,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1642 Valid, 4993 Invalid, 765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 758 Invalid, 4 Unknown, 0 Unchecked, 15.4s Time] [2022-11-19 06:53:17,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5210 states. [2022-11-19 06:53:18,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5210 to 5035. [2022-11-19 06:53:18,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5035 states, 3007 states have (on average 1.2933155969404722) internal successors, (3889), 3164 states have internal predecessors, (3889), 1553 states have call successors, (1553), 442 states have call predecessors, (1553), 441 states have return successors, (1579), 1515 states have call predecessors, (1579), 1551 states have call successors, (1579) [2022-11-19 06:53:18,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5035 states to 5035 states and 7021 transitions. [2022-11-19 06:53:18,128 INFO L78 Accepts]: Start accepts. Automaton has 5035 states and 7021 transitions. Word has length 48 [2022-11-19 06:53:18,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:53:18,129 INFO L495 AbstractCegarLoop]: Abstraction has 5035 states and 7021 transitions. [2022-11-19 06:53:18,129 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) [2022-11-19 06:53:18,129 INFO L276 IsEmpty]: Start isEmpty. Operand 5035 states and 7021 transitions. [2022-11-19 06:53:18,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-19 06:53:18,133 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:53:18,133 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:53:18,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 06:53:18,135 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 06:53:18,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:53:18,136 INFO L85 PathProgramCache]: Analyzing trace with hash -2003052724, now seen corresponding path program 1 times [2022-11-19 06:53:18,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:53:18,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809476045] [2022-11-19 06:53:18,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:53:18,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:53:18,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:53:18,670 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 06:53:18,671 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:53:18,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809476045] [2022-11-19 06:53:18,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809476045] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:53:18,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:53:18,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:53:18,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685586732] [2022-11-19 06:53:18,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:53:18,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:53:18,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:53:18,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:53:18,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:53:18,673 INFO L87 Difference]: Start difference. First operand 5035 states and 7021 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) [2022-11-19 06:53:21,987 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 [] [2022-11-19 06:53:25,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:53:28,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:53:28,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:53:28,489 INFO L93 Difference]: Finished difference Result 5213 states and 7258 transitions. [2022-11-19 06:53:28,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:53:28,490 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 53 [2022-11-19 06:53:28,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:53:28,523 INFO L225 Difference]: With dead ends: 5213 [2022-11-19 06:53:28,523 INFO L226 Difference]: Without dead ends: 5211 [2022-11-19 06:53:28,527 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 [2022-11-19 06:53:28,528 INFO L413 NwaCegarLoop]: 1491 mSDtfsCounter, 1668 mSDsluCounter, 1684 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1671 SdHoareTripleChecker+Valid, 3175 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2022-11-19 06:53:28,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1671 Valid, 3175 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 552 Invalid, 3 Unknown, 0 Unchecked, 9.4s Time] [2022-11-19 06:53:28,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5211 states. [2022-11-19 06:53:28,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5211 to 5208. [2022-11-19 06:53:28,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5208 states, 3110 states have (on average 1.2919614147909968) internal successors, (4018), 3274 states have internal predecessors, (4018), 1604 states have call successors, (1604), 461 states have call predecessors, (1604), 461 states have return successors, (1631), 1563 states have call predecessors, (1631), 1602 states have call successors, (1631) [2022-11-19 06:53:28,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5208 states to 5208 states and 7253 transitions. [2022-11-19 06:53:28,888 INFO L78 Accepts]: Start accepts. Automaton has 5208 states and 7253 transitions. Word has length 53 [2022-11-19 06:53:28,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:53:28,888 INFO L495 AbstractCegarLoop]: Abstraction has 5208 states and 7253 transitions. [2022-11-19 06:53:28,889 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) [2022-11-19 06:53:28,890 INFO L276 IsEmpty]: Start isEmpty. Operand 5208 states and 7253 transitions. [2022-11-19 06:53:28,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-19 06:53:28,891 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:53:28,891 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:53:28,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 06:53:28,892 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 06:53:28,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:53:28,892 INFO L85 PathProgramCache]: Analyzing trace with hash 454003990, now seen corresponding path program 1 times [2022-11-19 06:53:28,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:53:28,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898190086] [2022-11-19 06:53:28,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:53:28,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:53:28,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:53:29,221 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 06:53:29,221 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:53:29,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898190086] [2022-11-19 06:53:29,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898190086] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:53:29,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:53:29,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:53:29,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662983711] [2022-11-19 06:53:29,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:53:29,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:53:29,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:53:29,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:53:29,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:53:29,223 INFO L87 Difference]: Start difference. First operand 5208 states and 7253 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) [2022-11-19 06:53:32,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:53:35,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:53:39,262 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 [] [2022-11-19 06:53:39,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:53:39,536 INFO L93 Difference]: Finished difference Result 5211 states and 7256 transitions. [2022-11-19 06:53:39,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:53:39,536 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 58 [2022-11-19 06:53:39,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:53:39,566 INFO L225 Difference]: With dead ends: 5211 [2022-11-19 06:53:39,566 INFO L226 Difference]: Without dead ends: 5209 [2022-11-19 06:53:39,570 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 [2022-11-19 06:53:39,571 INFO L413 NwaCegarLoop]: 1489 mSDtfsCounter, 1665 mSDsluCounter, 1682 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1668 SdHoareTripleChecker+Valid, 3171 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:53:39,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1668 Valid, 3171 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 552 Invalid, 3 Unknown, 0 Unchecked, 10.0s Time] [2022-11-19 06:53:39,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5209 states. [2022-11-19 06:53:39,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5209 to 5206. [2022-11-19 06:53:39,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5206 states, 3109 states have (on average 1.2917336764232872) internal successors, (4016), 3272 states have internal predecessors, (4016), 1604 states have call successors, (1604), 461 states have call predecessors, (1604), 461 states have return successors, (1631), 1563 states have call predecessors, (1631), 1602 states have call successors, (1631) [2022-11-19 06:53:39,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5206 states to 5206 states and 7251 transitions. [2022-11-19 06:53:39,935 INFO L78 Accepts]: Start accepts. Automaton has 5206 states and 7251 transitions. Word has length 58 [2022-11-19 06:53:39,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:53:39,936 INFO L495 AbstractCegarLoop]: Abstraction has 5206 states and 7251 transitions. [2022-11-19 06:53:39,936 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) [2022-11-19 06:53:39,936 INFO L276 IsEmpty]: Start isEmpty. Operand 5206 states and 7251 transitions. [2022-11-19 06:53:39,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-19 06:53:39,938 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:53:39,939 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:53:39,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 06:53:39,939 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 06:53:39,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:53:39,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1265835479, now seen corresponding path program 1 times [2022-11-19 06:53:39,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:53:39,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11458774] [2022-11-19 06:53:39,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:53:39,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:53:40,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:53:40,308 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 06:53:40,309 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:53:40,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11458774] [2022-11-19 06:53:40,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11458774] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:53:40,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:53:40,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:53:40,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8716338] [2022-11-19 06:53:40,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:53:40,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:53:40,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:53:40,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:53:40,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:53:40,311 INFO L87 Difference]: Start difference. First operand 5206 states and 7251 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) [2022-11-19 06:53:44,127 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 [] [2022-11-19 06:53:47,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:53:50,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:53:50,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:53:50,571 INFO L93 Difference]: Finished difference Result 5209 states and 7254 transitions. [2022-11-19 06:53:50,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:53:50,571 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 63 [2022-11-19 06:53:50,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:53:50,605 INFO L225 Difference]: With dead ends: 5209 [2022-11-19 06:53:50,605 INFO L226 Difference]: Without dead ends: 5207 [2022-11-19 06:53:50,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:53:50,611 INFO L413 NwaCegarLoop]: 1487 mSDtfsCounter, 1662 mSDsluCounter, 1680 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1665 SdHoareTripleChecker+Valid, 3167 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-11-19 06:53:50,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1665 Valid, 3167 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 552 Invalid, 3 Unknown, 0 Unchecked, 9.9s Time] [2022-11-19 06:53:50,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5207 states. [2022-11-19 06:53:51,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5207 to 5204. [2022-11-19 06:53:51,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5204 states, 3108 states have (on average 1.2915057915057915) internal successors, (4014), 3270 states have internal predecessors, (4014), 1604 states have call successors, (1604), 461 states have call predecessors, (1604), 461 states have return successors, (1631), 1563 states have call predecessors, (1631), 1602 states have call successors, (1631) [2022-11-19 06:53:51,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5204 states to 5204 states and 7249 transitions. [2022-11-19 06:53:51,078 INFO L78 Accepts]: Start accepts. Automaton has 5204 states and 7249 transitions. Word has length 63 [2022-11-19 06:53:51,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:53:51,078 INFO L495 AbstractCegarLoop]: Abstraction has 5204 states and 7249 transitions. [2022-11-19 06:53:51,079 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) [2022-11-19 06:53:51,079 INFO L276 IsEmpty]: Start isEmpty. Operand 5204 states and 7249 transitions. [2022-11-19 06:53:51,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-19 06:53:51,080 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:53:51,080 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:53:51,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 06:53:51,081 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 06:53:51,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:53:51,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1567832818, now seen corresponding path program 1 times [2022-11-19 06:53:51,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:53:51,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100464795] [2022-11-19 06:53:51,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:53:51,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:53:51,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:53:51,453 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 06:53:51,453 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:53:51,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100464795] [2022-11-19 06:53:51,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100464795] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:53:51,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:53:51,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:53:51,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522022932] [2022-11-19 06:53:51,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:53:51,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:53:51,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:53:51,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:53:51,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:53:51,456 INFO L87 Difference]: Start difference. First operand 5204 states and 7249 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) [2022-11-19 06:53:54,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:53:58,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:54:02,736 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 [] [2022-11-19 06:54:03,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:54:03,516 INFO L93 Difference]: Finished difference Result 5377 states and 7431 transitions. [2022-11-19 06:54:03,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:54:03,516 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 68 [2022-11-19 06:54:03,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:54:03,548 INFO L225 Difference]: With dead ends: 5377 [2022-11-19 06:54:03,549 INFO L226 Difference]: Without dead ends: 5375 [2022-11-19 06:54:03,554 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 [2022-11-19 06:54:03,555 INFO L413 NwaCegarLoop]: 1959 mSDtfsCounter, 1450 mSDsluCounter, 3366 mSDsCounter, 0 mSdLazyCounter, 856 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1453 SdHoareTripleChecker+Valid, 5325 SdHoareTripleChecker+Invalid, 860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 856 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2022-11-19 06:54:03,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1453 Valid, 5325 Invalid, 860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 856 Invalid, 3 Unknown, 0 Unchecked, 11.7s Time] [2022-11-19 06:54:03,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5375 states. [2022-11-19 06:54:04,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5375 to 5246. [2022-11-19 06:54:04,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5246 states, 3129 states have (on average 1.2898689677213167) internal successors, (4036), 3291 states have internal predecessors, (4036), 1618 states have call successors, (1618), 468 states have call predecessors, (1618), 468 states have return successors, (1645), 1577 states have call predecessors, (1645), 1616 states have call successors, (1645) [2022-11-19 06:54:04,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5246 states to 5246 states and 7299 transitions. [2022-11-19 06:54:04,061 INFO L78 Accepts]: Start accepts. Automaton has 5246 states and 7299 transitions. Word has length 68 [2022-11-19 06:54:04,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:54:04,062 INFO L495 AbstractCegarLoop]: Abstraction has 5246 states and 7299 transitions. [2022-11-19 06:54:04,062 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) [2022-11-19 06:54:04,062 INFO L276 IsEmpty]: Start isEmpty. Operand 5246 states and 7299 transitions. [2022-11-19 06:54:04,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-19 06:54:04,067 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:54:04,067 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:54:04,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 06:54:04,068 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 06:54:04,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:54:04,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1592682553, now seen corresponding path program 1 times [2022-11-19 06:54:04,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:54:04,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488030137] [2022-11-19 06:54:04,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:54:04,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:54:04,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:54:04,430 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 06:54:04,430 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:54:04,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488030137] [2022-11-19 06:54:04,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488030137] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:54:04,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:54:04,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:54:04,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569166779] [2022-11-19 06:54:04,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:54:04,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:54:04,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:54:04,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:54:04,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:54:04,432 INFO L87 Difference]: Start difference. First operand 5246 states and 7299 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) [2022-11-19 06:54:07,410 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 [] [2022-11-19 06:54:11,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:54:14,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:54:16,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:54:18,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:54:20,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:54:22,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:54:22,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:54:22,683 INFO L93 Difference]: Finished difference Result 5491 states and 7579 transitions. [2022-11-19 06:54:22,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:54:22,687 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 73 [2022-11-19 06:54:22,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:54:22,717 INFO L225 Difference]: With dead ends: 5491 [2022-11-19 06:54:22,717 INFO L226 Difference]: Without dead ends: 5489 [2022-11-19 06:54:22,722 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 [2022-11-19 06:54:22,723 INFO L413 NwaCegarLoop]: 1965 mSDtfsCounter, 1463 mSDsluCounter, 3368 mSDsCounter, 0 mSdLazyCounter, 860 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1466 SdHoareTripleChecker+Valid, 5333 SdHoareTripleChecker+Invalid, 866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 860 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.8s IncrementalHoareTripleChecker+Time [2022-11-19 06:54:22,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1466 Valid, 5333 Invalid, 866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 860 Invalid, 5 Unknown, 0 Unchecked, 17.8s Time] [2022-11-19 06:54:22,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5489 states. [2022-11-19 06:54:23,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5489 to 5371. [2022-11-19 06:54:23,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5371 states, 3202 states have (on average 1.2882573391630232) internal successors, (4125), 3367 states have internal predecessors, (4125), 1654 states have call successors, (1654), 484 states have call predecessors, (1654), 484 states have return successors, (1681), 1612 states have call predecessors, (1681), 1652 states have call successors, (1681) [2022-11-19 06:54:23,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5371 states to 5371 states and 7460 transitions. [2022-11-19 06:54:23,193 INFO L78 Accepts]: Start accepts. Automaton has 5371 states and 7460 transitions. Word has length 73 [2022-11-19 06:54:23,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:54:23,194 INFO L495 AbstractCegarLoop]: Abstraction has 5371 states and 7460 transitions. [2022-11-19 06:54:23,194 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) [2022-11-19 06:54:23,194 INFO L276 IsEmpty]: Start isEmpty. Operand 5371 states and 7460 transitions. [2022-11-19 06:54:23,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-19 06:54:23,196 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:54:23,196 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:54:23,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 06:54:23,197 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 06:54:23,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:54:23,198 INFO L85 PathProgramCache]: Analyzing trace with hash -464994863, now seen corresponding path program 1 times [2022-11-19 06:54:23,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:54:23,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030198811] [2022-11-19 06:54:23,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:54:23,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:54:23,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:54:24,541 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-19 06:54:24,541 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:54:24,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030198811] [2022-11-19 06:54:24,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030198811] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:54:24,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:54:24,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 06:54:24,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188828426] [2022-11-19 06:54:24,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:54:24,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 06:54:24,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:54:24,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 06:54:24,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 06:54:24,544 INFO L87 Difference]: Start difference. First operand 5371 states and 7460 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-19 06:54:29,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:54:34,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:54:40,126 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 [] [2022-11-19 06:54:41,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:54:41,608 INFO L93 Difference]: Finished difference Result 5490 states and 7578 transitions. [2022-11-19 06:54:41,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 06:54:41,609 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 88 [2022-11-19 06:54:41,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:54:41,636 INFO L225 Difference]: With dead ends: 5490 [2022-11-19 06:54:41,636 INFO L226 Difference]: Without dead ends: 5488 [2022-11-19 06:54:41,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-19 06:54:41,642 INFO L413 NwaCegarLoop]: 1960 mSDtfsCounter, 1453 mSDsluCounter, 6615 mSDsCounter, 0 mSdLazyCounter, 2125 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1458 SdHoareTripleChecker+Valid, 8575 SdHoareTripleChecker+Invalid, 2129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2125 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.5s IncrementalHoareTripleChecker+Time [2022-11-19 06:54:41,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1458 Valid, 8575 Invalid, 2129 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2125 Invalid, 3 Unknown, 0 Unchecked, 16.5s Time] [2022-11-19 06:54:41,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5488 states. [2022-11-19 06:54:42,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5488 to 5371. [2022-11-19 06:54:42,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5371 states, 3202 states have (on average 1.287632729544035) internal successors, (4123), 3367 states have internal predecessors, (4123), 1654 states have call successors, (1654), 484 states have call predecessors, (1654), 484 states have return successors, (1681), 1612 states have call predecessors, (1681), 1652 states have call successors, (1681) [2022-11-19 06:54:42,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5371 states to 5371 states and 7458 transitions. [2022-11-19 06:54:42,113 INFO L78 Accepts]: Start accepts. Automaton has 5371 states and 7458 transitions. Word has length 88 [2022-11-19 06:54:42,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:54:42,114 INFO L495 AbstractCegarLoop]: Abstraction has 5371 states and 7458 transitions. [2022-11-19 06:54:42,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-19 06:54:42,114 INFO L276 IsEmpty]: Start isEmpty. Operand 5371 states and 7458 transitions. [2022-11-19 06:54:42,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-19 06:54:42,115 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:54:42,116 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:54:42,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-19 06:54:42,116 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 06:54:42,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:54:42,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1559440662, now seen corresponding path program 1 times [2022-11-19 06:54:42,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:54:42,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595724517] [2022-11-19 06:54:42,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:54:42,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:54:42,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:54:42,577 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 06:54:42,578 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:54:42,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595724517] [2022-11-19 06:54:42,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595724517] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:54:42,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:54:42,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:54:42,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294107461] [2022-11-19 06:54:42,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:54:42,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:54:42,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:54:42,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:54:42,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:54:42,580 INFO L87 Difference]: Start difference. First operand 5371 states and 7458 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (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) [2022-11-19 06:54:48,100 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 [] [2022-11-19 06:54:50,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:54:52,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:54:54,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:54:56,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:54:57,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:54:57,035 INFO L93 Difference]: Finished difference Result 5490 states and 7611 transitions. [2022-11-19 06:54:57,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:54:57,035 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (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 75 [2022-11-19 06:54:57,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:54:57,061 INFO L225 Difference]: With dead ends: 5490 [2022-11-19 06:54:57,061 INFO L226 Difference]: Without dead ends: 5488 [2022-11-19 06:54:57,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:54:57,066 INFO L413 NwaCegarLoop]: 1487 mSDtfsCounter, 1664 mSDsluCounter, 1680 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1667 SdHoareTripleChecker+Valid, 3167 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:54:57,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1667 Valid, 3167 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 554 Invalid, 4 Unknown, 0 Unchecked, 14.1s Time] [2022-11-19 06:54:57,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5488 states. [2022-11-19 06:54:57,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5488 to 5369. [2022-11-19 06:54:57,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5369 states, 3201 states have (on average 1.2870977819431428) internal successors, (4120), 3365 states have internal predecessors, (4120), 1654 states have call successors, (1654), 484 states have call predecessors, (1654), 484 states have return successors, (1681), 1612 states have call predecessors, (1681), 1652 states have call successors, (1681) [2022-11-19 06:54:57,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5369 states to 5369 states and 7455 transitions. [2022-11-19 06:54:57,677 INFO L78 Accepts]: Start accepts. Automaton has 5369 states and 7455 transitions. Word has length 75 [2022-11-19 06:54:57,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:54:57,678 INFO L495 AbstractCegarLoop]: Abstraction has 5369 states and 7455 transitions. [2022-11-19 06:54:57,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (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) [2022-11-19 06:54:57,679 INFO L276 IsEmpty]: Start isEmpty. Operand 5369 states and 7455 transitions. [2022-11-19 06:54:57,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-19 06:54:57,682 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:54:57,682 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:54:57,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-19 06:54:57,682 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 06:54:57,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:54:57,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1260284049, now seen corresponding path program 1 times [2022-11-19 06:54:57,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:54:57,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766706558] [2022-11-19 06:54:57,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:54:57,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:54:57,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:54:58,039 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-19 06:54:58,039 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:54:58,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766706558] [2022-11-19 06:54:58,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766706558] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:54:58,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:54:58,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:54:58,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888676225] [2022-11-19 06:54:58,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:54:58,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:54:58,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:54:58,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:54:58,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:54:58,043 INFO L87 Difference]: Start difference. First operand 5369 states and 7455 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-19 06:55:02,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:55:03,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:55:06,227 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 [] [2022-11-19 06:55:06,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:55:06,497 INFO L93 Difference]: Finished difference Result 10708 states and 14939 transitions. [2022-11-19 06:55:06,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:55:06,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 91 [2022-11-19 06:55:06,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:55:06,528 INFO L225 Difference]: With dead ends: 10708 [2022-11-19 06:55:06,528 INFO L226 Difference]: Without dead ends: 5360 [2022-11-19 06:55:06,556 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 [2022-11-19 06:55:06,557 INFO L413 NwaCegarLoop]: 1481 mSDtfsCounter, 1645 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1646 SdHoareTripleChecker+Valid, 1674 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:55:06,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1646 Valid, 1674 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 301 Invalid, 2 Unknown, 0 Unchecked, 8.0s Time] [2022-11-19 06:55:06,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5360 states. [2022-11-19 06:55:07,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5360 to 5357. [2022-11-19 06:55:07,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5357 states, 3190 states have (on average 1.2849529780564264) internal successors, (4099), 3353 states have internal predecessors, (4099), 1654 states have call successors, (1654), 484 states have call predecessors, (1654), 484 states have return successors, (1681), 1612 states have call predecessors, (1681), 1652 states have call successors, (1681) [2022-11-19 06:55:07,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5357 states to 5357 states and 7434 transitions. [2022-11-19 06:55:07,268 INFO L78 Accepts]: Start accepts. Automaton has 5357 states and 7434 transitions. Word has length 91 [2022-11-19 06:55:07,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:55:07,269 INFO L495 AbstractCegarLoop]: Abstraction has 5357 states and 7434 transitions. [2022-11-19 06:55:07,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-19 06:55:07,270 INFO L276 IsEmpty]: Start isEmpty. Operand 5357 states and 7434 transitions. [2022-11-19 06:55:07,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-19 06:55:07,271 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:55:07,272 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:55:07,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-19 06:55:07,272 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 06:55:07,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:55:07,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1031479815, now seen corresponding path program 1 times [2022-11-19 06:55:07,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:55:07,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661854395] [2022-11-19 06:55:07,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:55:07,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:55:07,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:55:07,655 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 06:55:07,655 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:55:07,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661854395] [2022-11-19 06:55:07,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661854395] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:55:07,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:55:07,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:55:07,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238451391] [2022-11-19 06:55:07,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:55:07,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:55:07,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:55:07,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:55:07,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:55:07,657 INFO L87 Difference]: Start difference. First operand 5357 states and 7434 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (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) [2022-11-19 06:55:10,646 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 [] [2022-11-19 06:55:14,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:55:19,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:55:21,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:55:23,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:55:24,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:55:24,150 INFO L93 Difference]: Finished difference Result 5470 states and 7549 transitions. [2022-11-19 06:55:24,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:55:24,151 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (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 80 [2022-11-19 06:55:24,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:55:24,178 INFO L225 Difference]: With dead ends: 5470 [2022-11-19 06:55:24,179 INFO L226 Difference]: Without dead ends: 5468 [2022-11-19 06:55:24,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:55:24,187 INFO L413 NwaCegarLoop]: 1952 mSDtfsCounter, 1435 mSDsluCounter, 3352 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1438 SdHoareTripleChecker+Valid, 5304 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2022-11-19 06:55:24,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1438 Valid, 5304 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 857 Invalid, 5 Unknown, 0 Unchecked, 15.9s Time] [2022-11-19 06:55:24,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5468 states. [2022-11-19 06:55:24,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5468 to 5363. [2022-11-19 06:55:24,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5363 states, 3193 states have (on average 1.2846852489821485) internal successors, (4102), 3356 states have internal predecessors, (4102), 1656 states have call successors, (1656), 485 states have call predecessors, (1656), 485 states have return successors, (1683), 1614 states have call predecessors, (1683), 1654 states have call successors, (1683) [2022-11-19 06:55:24,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5363 states to 5363 states and 7441 transitions. [2022-11-19 06:55:24,755 INFO L78 Accepts]: Start accepts. Automaton has 5363 states and 7441 transitions. Word has length 80 [2022-11-19 06:55:24,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:55:24,758 INFO L495 AbstractCegarLoop]: Abstraction has 5363 states and 7441 transitions. [2022-11-19 06:55:24,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (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) [2022-11-19 06:55:24,759 INFO L276 IsEmpty]: Start isEmpty. Operand 5363 states and 7441 transitions. [2022-11-19 06:55:24,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-19 06:55:24,760 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:55:24,761 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:55:24,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-19 06:55:24,761 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 06:55:24,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:55:24,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1244991609, now seen corresponding path program 1 times [2022-11-19 06:55:24,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:55:24,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586496112] [2022-11-19 06:55:24,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:55:24,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:55:24,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:55:25,121 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 06:55:25,121 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:55:25,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586496112] [2022-11-19 06:55:25,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586496112] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:55:25,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:55:25,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:55:25,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499923935] [2022-11-19 06:55:25,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:55:25,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:55:25,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:55:25,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:55:25,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:55:25,124 INFO L87 Difference]: Start difference. First operand 5363 states and 7441 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) [2022-11-19 06:55:27,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:55:29,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:55:32,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:55:37,099 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:55:37,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:55:37,404 INFO L93 Difference]: Finished difference Result 5366 states and 7444 transitions. [2022-11-19 06:55:37,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:55:37,405 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 85 [2022-11-19 06:55:37,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:55:37,433 INFO L225 Difference]: With dead ends: 5366 [2022-11-19 06:55:37,433 INFO L226 Difference]: Without dead ends: 5364 [2022-11-19 06:55:37,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:55:37,442 INFO L413 NwaCegarLoop]: 1478 mSDtfsCounter, 1649 mSDsluCounter, 1671 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1652 SdHoareTripleChecker+Valid, 3149 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2022-11-19 06:55:37,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1652 Valid, 3149 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 552 Invalid, 3 Unknown, 0 Unchecked, 11.8s Time] [2022-11-19 06:55:37,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5364 states. [2022-11-19 06:55:38,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5364 to 5361. [2022-11-19 06:55:38,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5361 states, 3192 states have (on average 1.2844611528822054) internal successors, (4100), 3354 states have internal predecessors, (4100), 1656 states have call successors, (1656), 485 states have call predecessors, (1656), 485 states have return successors, (1683), 1614 states have call predecessors, (1683), 1654 states have call successors, (1683) [2022-11-19 06:55:38,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5361 states to 5361 states and 7439 transitions. [2022-11-19 06:55:38,053 INFO L78 Accepts]: Start accepts. Automaton has 5361 states and 7439 transitions. Word has length 85 [2022-11-19 06:55:38,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:55:38,056 INFO L495 AbstractCegarLoop]: Abstraction has 5361 states and 7439 transitions. [2022-11-19 06:55:38,056 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) [2022-11-19 06:55:38,056 INFO L276 IsEmpty]: Start isEmpty. Operand 5361 states and 7439 transitions. [2022-11-19 06:55:38,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-19 06:55:38,062 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:55:38,062 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-11-19 06:55:38,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-19 06:55:38,063 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 06:55:38,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:55:38,064 INFO L85 PathProgramCache]: Analyzing trace with hash 184201682, now seen corresponding path program 1 times [2022-11-19 06:55:38,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:55:38,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139687643] [2022-11-19 06:55:38,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:55:38,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:55:38,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:55:38,903 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-11-19 06:55:38,903 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:55:38,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139687643] [2022-11-19 06:55:38,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139687643] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:55:38,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:55:38,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 06:55:38,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167800893] [2022-11-19 06:55:38,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:55:38,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:55:38,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:55:38,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:55:38,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:55:38,905 INFO L87 Difference]: Start difference. First operand 5361 states and 7439 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-19 06:55:42,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:55:46,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:55:48,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:55:52,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:55:53,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:55:53,106 INFO L93 Difference]: Finished difference Result 5887 states and 7988 transitions. [2022-11-19 06:55:53,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 06:55:53,107 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 117 [2022-11-19 06:55:53,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:55:53,133 INFO L225 Difference]: With dead ends: 5887 [2022-11-19 06:55:53,133 INFO L226 Difference]: Without dead ends: 5885 [2022-11-19 06:55:53,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 06:55:53,138 INFO L413 NwaCegarLoop]: 1944 mSDtfsCounter, 1384 mSDsluCounter, 5256 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1388 SdHoareTripleChecker+Valid, 7200 SdHoareTripleChecker+Invalid, 1168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2022-11-19 06:55:53,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1388 Valid, 7200 Invalid, 1168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1163 Invalid, 3 Unknown, 0 Unchecked, 13.6s Time] [2022-11-19 06:55:53,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5885 states. [2022-11-19 06:55:53,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5885 to 5766. [2022-11-19 06:55:53,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5766 states, 3414 states have (on average 1.2741652021089631) internal successors, (4350), 3583 states have internal predecessors, (4350), 1745 states have call successors, (1745), 582 states have call predecessors, (1745), 579 states have return successors, (1772), 1693 states have call predecessors, (1772), 1743 states have call successors, (1772) [2022-11-19 06:55:53,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5766 states to 5766 states and 7867 transitions. [2022-11-19 06:55:53,689 INFO L78 Accepts]: Start accepts. Automaton has 5766 states and 7867 transitions. Word has length 117 [2022-11-19 06:55:53,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:55:53,690 INFO L495 AbstractCegarLoop]: Abstraction has 5766 states and 7867 transitions. [2022-11-19 06:55:53,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-19 06:55:53,690 INFO L276 IsEmpty]: Start isEmpty. Operand 5766 states and 7867 transitions. [2022-11-19 06:55:53,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-11-19 06:55:53,692 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:55:53,692 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:55:53,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-19 06:55:53,693 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 06:55:53,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:55:53,693 INFO L85 PathProgramCache]: Analyzing trace with hash 355514815, now seen corresponding path program 1 times [2022-11-19 06:55:53,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:55:53,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42668860] [2022-11-19 06:55:53,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:55:53,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:55:53,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:55:54,016 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 06:55:54,017 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:55:54,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42668860] [2022-11-19 06:55:54,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42668860] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:55:54,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:55:54,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:55:54,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112674738] [2022-11-19 06:55:54,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:55:54,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:55:54,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:55:54,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:55:54,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:55:54,019 INFO L87 Difference]: Start difference. First operand 5766 states and 7867 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) [2022-11-19 06:55:57,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:56:00,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:56:04,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:56:06,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:56:08,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:56:10,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:56:12,768 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 [] [2022-11-19 06:56:13,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:56:13,015 INFO L93 Difference]: Finished difference Result 5985 states and 8121 transitions. [2022-11-19 06:56:13,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:56:13,016 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 90 [2022-11-19 06:56:13,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:56:13,039 INFO L225 Difference]: With dead ends: 5985 [2022-11-19 06:56:13,039 INFO L226 Difference]: Without dead ends: 5983 [2022-11-19 06:56:13,043 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 [2022-11-19 06:56:13,043 INFO L413 NwaCegarLoop]: 1954 mSDtfsCounter, 1437 mSDsluCounter, 3352 mSDsCounter, 0 mSdLazyCounter, 860 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1440 SdHoareTripleChecker+Valid, 5306 SdHoareTripleChecker+Invalid, 866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 860 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.4s IncrementalHoareTripleChecker+Time [2022-11-19 06:56:13,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1440 Valid, 5306 Invalid, 866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 860 Invalid, 5 Unknown, 0 Unchecked, 18.4s Time] [2022-11-19 06:56:13,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5983 states. [2022-11-19 06:56:13,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5983 to 5778. [2022-11-19 06:56:13,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5778 states, 3420 states have (on average 1.2736842105263158) internal successors, (4356), 3589 states have internal predecessors, (4356), 1749 states have call successors, (1749), 584 states have call predecessors, (1749), 581 states have return successors, (1776), 1697 states have call predecessors, (1776), 1747 states have call successors, (1776) [2022-11-19 06:56:13,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5778 states to 5778 states and 7881 transitions. [2022-11-19 06:56:13,572 INFO L78 Accepts]: Start accepts. Automaton has 5778 states and 7881 transitions. Word has length 90 [2022-11-19 06:56:13,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:56:13,573 INFO L495 AbstractCegarLoop]: Abstraction has 5778 states and 7881 transitions. [2022-11-19 06:56:13,573 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) [2022-11-19 06:56:13,573 INFO L276 IsEmpty]: Start isEmpty. Operand 5778 states and 7881 transitions. [2022-11-19 06:56:13,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-19 06:56:13,575 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:56:13,575 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:56:13,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-19 06:56:13,576 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 06:56:13,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:56:13,576 INFO L85 PathProgramCache]: Analyzing trace with hash 838643732, now seen corresponding path program 1 times [2022-11-19 06:56:13,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:56:13,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009512681] [2022-11-19 06:56:13,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:56:13,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:56:13,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:56:13,899 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 06:56:13,899 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:56:13,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009512681] [2022-11-19 06:56:13,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009512681] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:56:13,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:56:13,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:56:13,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361029480] [2022-11-19 06:56:13,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:56:13,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:56:13,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:56:13,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:56:13,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:56:13,901 INFO L87 Difference]: Start difference. First operand 5778 states and 7881 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) [2022-11-19 06:56:16,849 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 [] [2022-11-19 06:56:20,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:56:24,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:56:26,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:56:29,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:56:29,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:56:29,485 INFO L93 Difference]: Finished difference Result 5867 states and 7969 transitions. [2022-11-19 06:56:29,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:56:29,486 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 95 [2022-11-19 06:56:29,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:56:29,508 INFO L225 Difference]: With dead ends: 5867 [2022-11-19 06:56:29,508 INFO L226 Difference]: Without dead ends: 5865 [2022-11-19 06:56:29,511 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 [2022-11-19 06:56:29,512 INFO L413 NwaCegarLoop]: 1948 mSDtfsCounter, 1426 mSDsluCounter, 3346 mSDsCounter, 0 mSdLazyCounter, 859 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1429 SdHoareTripleChecker+Valid, 5294 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 859 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:56:29,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1429 Valid, 5294 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 859 Invalid, 3 Unknown, 0 Unchecked, 15.0s Time] [2022-11-19 06:56:29,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5865 states. [2022-11-19 06:56:29,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5865 to 5784. [2022-11-19 06:56:29,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5784 states, 3423 states have (on average 1.273444347063979) internal successors, (4359), 3592 states have internal predecessors, (4359), 1751 states have call successors, (1751), 585 states have call predecessors, (1751), 582 states have return successors, (1778), 1699 states have call predecessors, (1778), 1749 states have call successors, (1778) [2022-11-19 06:56:30,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5784 states to 5784 states and 7888 transitions. [2022-11-19 06:56:30,012 INFO L78 Accepts]: Start accepts. Automaton has 5784 states and 7888 transitions. Word has length 95 [2022-11-19 06:56:30,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:56:30,012 INFO L495 AbstractCegarLoop]: Abstraction has 5784 states and 7888 transitions. [2022-11-19 06:56:30,012 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) [2022-11-19 06:56:30,013 INFO L276 IsEmpty]: Start isEmpty. Operand 5784 states and 7888 transitions. [2022-11-19 06:56:30,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-19 06:56:30,015 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:56:30,015 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-11-19 06:56:30,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-19 06:56:30,016 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 06:56:30,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:56:30,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1073388408, now seen corresponding path program 1 times [2022-11-19 06:56:30,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:56:30,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072450006] [2022-11-19 06:56:30,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:56:30,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:56:30,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:56:30,759 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-11-19 06:56:30,759 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:56:30,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072450006] [2022-11-19 06:56:30,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072450006] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:56:30,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:56:30,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 06:56:30,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084305585] [2022-11-19 06:56:30,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:56:30,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:56:30,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:56:30,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:56:30,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:56:30,761 INFO L87 Difference]: Start difference. First operand 5784 states and 7888 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-19 06:56:34,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:56:38,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:56:42,522 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 [] [2022-11-19 06:56:43,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:56:43,353 INFO L93 Difference]: Finished difference Result 7949 states and 10783 transitions. [2022-11-19 06:56:43,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 06:56:43,354 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 128 [2022-11-19 06:56:43,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:56:43,389 INFO L225 Difference]: With dead ends: 7949 [2022-11-19 06:56:43,389 INFO L226 Difference]: Without dead ends: 7947 [2022-11-19 06:56:43,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 06:56:43,393 INFO L413 NwaCegarLoop]: 1826 mSDtfsCounter, 1396 mSDsluCounter, 4628 mSDsCounter, 0 mSdLazyCounter, 1099 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1400 SdHoareTripleChecker+Valid, 6454 SdHoareTripleChecker+Invalid, 1105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1099 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2022-11-19 06:56:43,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1400 Valid, 6454 Invalid, 1105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1099 Invalid, 3 Unknown, 0 Unchecked, 11.8s Time] [2022-11-19 06:56:43,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7947 states. [2022-11-19 06:56:44,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7947 to 7925. [2022-11-19 06:56:44,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7925 states, 4710 states have (on average 1.2740976645435245) internal successors, (6001), 4924 states have internal predecessors, (6001), 2365 states have call successors, (2365), 828 states have call predecessors, (2365), 822 states have return successors, (2395), 2286 states have call predecessors, (2395), 2363 states have call successors, (2395) [2022-11-19 06:56:44,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7925 states to 7925 states and 10761 transitions. [2022-11-19 06:56:44,075 INFO L78 Accepts]: Start accepts. Automaton has 7925 states and 10761 transitions. Word has length 128 [2022-11-19 06:56:44,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:56:44,076 INFO L495 AbstractCegarLoop]: Abstraction has 7925 states and 10761 transitions. [2022-11-19 06:56:44,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-19 06:56:44,076 INFO L276 IsEmpty]: Start isEmpty. Operand 7925 states and 10761 transitions. [2022-11-19 06:56:44,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-11-19 06:56:44,079 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:56:44,079 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:56:44,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-19 06:56:44,079 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 06:56:44,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:56:44,080 INFO L85 PathProgramCache]: Analyzing trace with hash 155170737, now seen corresponding path program 1 times [2022-11-19 06:56:44,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:56:44,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166668665] [2022-11-19 06:56:44,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:56:44,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:56:44,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:56:44,736 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-11-19 06:56:44,737 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:56:44,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166668665] [2022-11-19 06:56:44,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166668665] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:56:44,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:56:44,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 06:56:44,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009135282] [2022-11-19 06:56:44,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:56:44,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:56:44,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:56:44,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:56:44,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:56:44,739 INFO L87 Difference]: Start difference. First operand 7925 states and 10761 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-19 06:56:48,261 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 [] [2022-11-19 06:56:52,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:56:56,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:56:57,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:57:00,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:57:00,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:57:00,459 INFO L93 Difference]: Finished difference Result 8378 states and 11224 transitions. [2022-11-19 06:57:00,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:57:00,460 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) Word has length 129 [2022-11-19 06:57:00,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:57:00,488 INFO L225 Difference]: With dead ends: 8378 [2022-11-19 06:57:00,488 INFO L226 Difference]: Without dead ends: 8376 [2022-11-19 06:57:00,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-19 06:57:00,494 INFO L413 NwaCegarLoop]: 1529 mSDtfsCounter, 194 mSDsluCounter, 4431 mSDsCounter, 0 mSdLazyCounter, 1084 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 5960 SdHoareTripleChecker+Invalid, 1086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1084 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:57:00,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 5960 Invalid, 1086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1084 Invalid, 2 Unknown, 0 Unchecked, 15.1s Time] [2022-11-19 06:57:00,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8376 states. [2022-11-19 06:57:01,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8376 to 8288. [2022-11-19 06:57:01,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8288 states, 4907 states have (on average 1.2675769309150193) internal successors, (6220), 5122 states have internal predecessors, (6220), 2439 states have call successors, (2439), 920 states have call predecessors, (2439), 914 states have return successors, (2469), 2359 states have call predecessors, (2469), 2437 states have call successors, (2469) [2022-11-19 06:57:01,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8288 states to 8288 states and 11128 transitions. [2022-11-19 06:57:01,187 INFO L78 Accepts]: Start accepts. Automaton has 8288 states and 11128 transitions. Word has length 129 [2022-11-19 06:57:01,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:57:01,187 INFO L495 AbstractCegarLoop]: Abstraction has 8288 states and 11128 transitions. [2022-11-19 06:57:01,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-19 06:57:01,188 INFO L276 IsEmpty]: Start isEmpty. Operand 8288 states and 11128 transitions. [2022-11-19 06:57:01,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-19 06:57:01,189 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:57:01,189 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:57:01,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-19 06:57:01,190 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 06:57:01,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:57:01,190 INFO L85 PathProgramCache]: Analyzing trace with hash -2057816427, now seen corresponding path program 1 times [2022-11-19 06:57:01,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:57:01,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414417482] [2022-11-19 06:57:01,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:57:01,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:57:01,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:57:01,500 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 06:57:01,500 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:57:01,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414417482] [2022-11-19 06:57:01,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414417482] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:57:01,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:57:01,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:57:01,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446441652] [2022-11-19 06:57:01,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:57:01,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:57:01,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:57:01,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:57:01,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:57:01,502 INFO L87 Difference]: Start difference. First operand 8288 states and 11128 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) [2022-11-19 06:57:03,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:57:07,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:57:10,821 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 [] [2022-11-19 06:57:11,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:57:11,226 INFO L93 Difference]: Finished difference Result 8291 states and 11131 transitions. [2022-11-19 06:57:11,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:57:11,226 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 100 [2022-11-19 06:57:11,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:57:11,252 INFO L225 Difference]: With dead ends: 8291 [2022-11-19 06:57:11,252 INFO L226 Difference]: Without dead ends: 8289 [2022-11-19 06:57:11,258 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 [2022-11-19 06:57:11,258 INFO L413 NwaCegarLoop]: 1476 mSDtfsCounter, 1644 mSDsluCounter, 1669 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1647 SdHoareTripleChecker+Valid, 3145 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:57:11,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1647 Valid, 3145 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 553 Invalid, 2 Unknown, 0 Unchecked, 9.0s Time] [2022-11-19 06:57:11,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8289 states. [2022-11-19 06:57:11,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8289 to 8286. [2022-11-19 06:57:11,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8286 states, 4906 states have (on average 1.267427639624949) internal successors, (6218), 5120 states have internal predecessors, (6218), 2439 states have call successors, (2439), 920 states have call predecessors, (2439), 914 states have return successors, (2469), 2359 states have call predecessors, (2469), 2437 states have call successors, (2469) [2022-11-19 06:57:12,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8286 states to 8286 states and 11126 transitions. [2022-11-19 06:57:12,028 INFO L78 Accepts]: Start accepts. Automaton has 8286 states and 11126 transitions. Word has length 100 [2022-11-19 06:57:12,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:57:12,029 INFO L495 AbstractCegarLoop]: Abstraction has 8286 states and 11126 transitions. [2022-11-19 06:57:12,029 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) [2022-11-19 06:57:12,029 INFO L276 IsEmpty]: Start isEmpty. Operand 8286 states and 11126 transitions. [2022-11-19 06:57:12,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-19 06:57:12,032 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:57:12,032 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 4, 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] [2022-11-19 06:57:12,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-19 06:57:12,032 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 06:57:12,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:57:12,033 INFO L85 PathProgramCache]: Analyzing trace with hash -349913129, now seen corresponding path program 1 times [2022-11-19 06:57:12,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:57:12,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911503053] [2022-11-19 06:57:12,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:57:12,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:57:12,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:57:12,799 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-11-19 06:57:12,800 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:57:12,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911503053] [2022-11-19 06:57:12,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911503053] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:57:12,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:57:12,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 06:57:12,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598432309] [2022-11-19 06:57:12,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:57:12,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:57:12,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:57:12,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:57:12,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:57:12,802 INFO L87 Difference]: Start difference. First operand 8286 states and 11126 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-19 06:57:15,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:57:17,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:57:19,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:57:23,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:57:25,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:57:28,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:57:30,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:57:32,139 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 [] [2022-11-19 06:57:33,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:57:33,606 INFO L93 Difference]: Finished difference Result 8881 states and 11697 transitions. [2022-11-19 06:57:33,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 06:57:33,607 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 123 [2022-11-19 06:57:33,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:57:33,627 INFO L225 Difference]: With dead ends: 8881 [2022-11-19 06:57:33,627 INFO L226 Difference]: Without dead ends: 8879 [2022-11-19 06:57:33,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 06:57:33,630 INFO L413 NwaCegarLoop]: 1438 mSDtfsCounter, 1286 mSDsluCounter, 3224 mSDsCounter, 0 mSdLazyCounter, 849 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1288 SdHoareTripleChecker+Valid, 4662 SdHoareTripleChecker+Invalid, 856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 849 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.9s IncrementalHoareTripleChecker+Time [2022-11-19 06:57:33,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1288 Valid, 4662 Invalid, 856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 849 Invalid, 5 Unknown, 0 Unchecked, 19.9s Time] [2022-11-19 06:57:33,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8879 states. [2022-11-19 06:57:34,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8879 to 8769. [2022-11-19 06:57:34,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8769 states, 5211 states have (on average 1.2607944732297063) internal successors, (6570), 5425 states have internal predecessors, (6570), 2483 states have call successors, (2483), 1054 states have call predecessors, (2483), 1048 states have return successors, (2513), 2403 states have call predecessors, (2513), 2481 states have call successors, (2513) [2022-11-19 06:57:34,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8769 states to 8769 states and 11566 transitions. [2022-11-19 06:57:34,347 INFO L78 Accepts]: Start accepts. Automaton has 8769 states and 11566 transitions. Word has length 123 [2022-11-19 06:57:34,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:57:34,347 INFO L495 AbstractCegarLoop]: Abstraction has 8769 states and 11566 transitions. [2022-11-19 06:57:34,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-19 06:57:34,347 INFO L276 IsEmpty]: Start isEmpty. Operand 8769 states and 11566 transitions. [2022-11-19 06:57:34,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-19 06:57:34,350 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:57:34,350 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:57:34,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-19 06:57:34,350 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 06:57:34,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:57:34,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1648973539, now seen corresponding path program 1 times [2022-11-19 06:57:34,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:57:34,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035793197] [2022-11-19 06:57:34,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:57:34,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:57:34,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:57:34,729 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 06:57:34,729 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:57:34,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035793197] [2022-11-19 06:57:34,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035793197] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:57:34,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:57:34,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:57:34,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329148122] [2022-11-19 06:57:34,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:57:34,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:57:34,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:57:34,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:57:34,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:57:34,731 INFO L87 Difference]: Start difference. First operand 8769 states and 11566 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) [2022-11-19 06:57:37,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:57:39,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:57:42,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:57:46,348 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 [] [2022-11-19 06:57:46,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:57:46,765 INFO L93 Difference]: Finished difference Result 8772 states and 11569 transitions. [2022-11-19 06:57:46,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:57:46,766 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 105 [2022-11-19 06:57:46,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:57:46,785 INFO L225 Difference]: With dead ends: 8772 [2022-11-19 06:57:46,785 INFO L226 Difference]: Without dead ends: 8770 [2022-11-19 06:57:46,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:57:46,790 INFO L413 NwaCegarLoop]: 1474 mSDtfsCounter, 1641 mSDsluCounter, 1667 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1644 SdHoareTripleChecker+Valid, 3141 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2022-11-19 06:57:46,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1644 Valid, 3141 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 552 Invalid, 3 Unknown, 0 Unchecked, 11.2s Time] [2022-11-19 06:57:46,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8770 states. [2022-11-19 06:57:47,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8770 to 8767. [2022-11-19 06:57:47,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8767 states, 5210 states have (on average 1.2606525911708253) internal successors, (6568), 5423 states have internal predecessors, (6568), 2483 states have call successors, (2483), 1054 states have call predecessors, (2483), 1048 states have return successors, (2513), 2403 states have call predecessors, (2513), 2481 states have call successors, (2513) [2022-11-19 06:57:47,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8767 states to 8767 states and 11564 transitions. [2022-11-19 06:57:47,731 INFO L78 Accepts]: Start accepts. Automaton has 8767 states and 11564 transitions. Word has length 105 [2022-11-19 06:57:47,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:57:47,731 INFO L495 AbstractCegarLoop]: Abstraction has 8767 states and 11564 transitions. [2022-11-19 06:57:47,732 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) [2022-11-19 06:57:47,732 INFO L276 IsEmpty]: Start isEmpty. Operand 8767 states and 11564 transitions. [2022-11-19 06:57:47,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-19 06:57:47,735 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:57:47,735 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2022-11-19 06:57:47,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-19 06:57:47,735 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 06:57:47,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:57:47,736 INFO L85 PathProgramCache]: Analyzing trace with hash 916272892, now seen corresponding path program 1 times [2022-11-19 06:57:47,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:57:47,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801847968] [2022-11-19 06:57:47,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:57:47,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:57:47,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:57:48,293 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2022-11-19 06:57:48,293 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:57:48,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801847968] [2022-11-19 06:57:48,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801847968] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:57:48,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:57:48,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 06:57:48,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041270658] [2022-11-19 06:57:48,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:57:48,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:57:48,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:57:48,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:57:48,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:57:48,296 INFO L87 Difference]: Start difference. First operand 8767 states and 11564 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2022-11-19 06:57:51,850 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 [] [2022-11-19 06:57:55,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:58:00,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:58:00,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:58:00,759 INFO L93 Difference]: Finished difference Result 8833 states and 11627 transitions. [2022-11-19 06:58:00,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:58:00,760 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) Word has length 138 [2022-11-19 06:58:00,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:58:00,787 INFO L225 Difference]: With dead ends: 8833 [2022-11-19 06:58:00,787 INFO L226 Difference]: Without dead ends: 8831 [2022-11-19 06:58:00,792 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 [2022-11-19 06:58:00,793 INFO L413 NwaCegarLoop]: 1521 mSDtfsCounter, 161 mSDsluCounter, 4421 mSDsCounter, 0 mSdLazyCounter, 1072 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 5942 SdHoareTripleChecker+Invalid, 1075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1072 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2022-11-19 06:58:00,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 5942 Invalid, 1075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1072 Invalid, 3 Unknown, 0 Unchecked, 11.5s Time] [2022-11-19 06:58:00,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8831 states. [2022-11-19 06:58:01,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8831 to 8821. [2022-11-19 06:58:01,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8821 states, 5240 states have (on average 1.257824427480916) internal successors, (6591), 5453 states have internal predecessors, (6591), 2495 states have call successors, (2495), 1066 states have call predecessors, (2495), 1060 states have return successors, (2525), 2415 states have call predecessors, (2525), 2493 states have call successors, (2525) [2022-11-19 06:58:01,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8821 states to 8821 states and 11611 transitions. [2022-11-19 06:58:01,635 INFO L78 Accepts]: Start accepts. Automaton has 8821 states and 11611 transitions. Word has length 138 [2022-11-19 06:58:01,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:58:01,636 INFO L495 AbstractCegarLoop]: Abstraction has 8821 states and 11611 transitions. [2022-11-19 06:58:01,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2022-11-19 06:58:01,637 INFO L276 IsEmpty]: Start isEmpty. Operand 8821 states and 11611 transitions. [2022-11-19 06:58:01,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-19 06:58:01,639 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:01,639 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:58:01,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-19 06:58:01,640 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 06:58:01,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:01,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1133532582, now seen corresponding path program 1 times [2022-11-19 06:58:01,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:58:01,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026497815] [2022-11-19 06:58:01,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:01,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:58:01,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:58:02,318 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 06:58:02,318 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:58:02,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026497815] [2022-11-19 06:58:02,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026497815] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:58:02,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:58:02,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:58:02,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253578056] [2022-11-19 06:58:02,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:58:02,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:58:02,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:58:02,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:58:02,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:58:02,320 INFO L87 Difference]: Start difference. First operand 8821 states and 11611 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) [2022-11-19 06:58:04,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:58:06,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:58:09,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:58:14,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:58:14,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:58:14,449 INFO L93 Difference]: Finished difference Result 8824 states and 11614 transitions. [2022-11-19 06:58:14,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:58:14,450 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 110 [2022-11-19 06:58:14,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:58:14,471 INFO L225 Difference]: With dead ends: 8824 [2022-11-19 06:58:14,471 INFO L226 Difference]: Without dead ends: 8822 [2022-11-19 06:58:14,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:58:14,476 INFO L413 NwaCegarLoop]: 1472 mSDtfsCounter, 1638 mSDsluCounter, 1665 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1641 SdHoareTripleChecker+Valid, 3137 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2022-11-19 06:58:14,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1641 Valid, 3137 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 552 Invalid, 3 Unknown, 0 Unchecked, 11.3s Time] [2022-11-19 06:58:14,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8822 states. [2022-11-19 06:58:15,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8822 to 8819. [2022-11-19 06:58:15,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8819 states, 5239 states have (on average 1.2576827638862378) internal successors, (6589), 5451 states have internal predecessors, (6589), 2495 states have call successors, (2495), 1066 states have call predecessors, (2495), 1060 states have return successors, (2525), 2415 states have call predecessors, (2525), 2493 states have call successors, (2525) [2022-11-19 06:58:15,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8819 states to 8819 states and 11609 transitions. [2022-11-19 06:58:15,467 INFO L78 Accepts]: Start accepts. Automaton has 8819 states and 11609 transitions. Word has length 110 [2022-11-19 06:58:15,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:58:15,467 INFO L495 AbstractCegarLoop]: Abstraction has 8819 states and 11609 transitions. [2022-11-19 06:58:15,468 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) [2022-11-19 06:58:15,468 INFO L276 IsEmpty]: Start isEmpty. Operand 8819 states and 11609 transitions. [2022-11-19 06:58:15,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-19 06:58:15,470 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:15,471 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:58:15,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-19 06:58:15,471 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 06:58:15,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:15,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1024805207, now seen corresponding path program 1 times [2022-11-19 06:58:15,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:58:15,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457575353] [2022-11-19 06:58:15,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:15,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:58:15,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:58:15,767 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 06:58:15,768 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:58:15,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457575353] [2022-11-19 06:58:15,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457575353] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:58:15,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:58:15,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:58:15,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675967377] [2022-11-19 06:58:15,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:58:15,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:58:15,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:58:15,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:58:15,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:58:15,770 INFO L87 Difference]: Start difference. First operand 8819 states and 11609 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) [2022-11-19 06:58:18,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:58:22,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:58:25,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:58:29,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:58:29,566 INFO L93 Difference]: Finished difference Result 9010 states and 11832 transitions. [2022-11-19 06:58:29,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:58:29,566 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 115 [2022-11-19 06:58:29,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:58:29,583 INFO L225 Difference]: With dead ends: 9010 [2022-11-19 06:58:29,584 INFO L226 Difference]: Without dead ends: 9008 [2022-11-19 06:58:29,586 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 [2022-11-19 06:58:29,586 INFO L413 NwaCegarLoop]: 1950 mSDtfsCounter, 1422 mSDsluCounter, 3342 mSDsCounter, 0 mSdLazyCounter, 861 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1425 SdHoareTripleChecker+Valid, 5292 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 861 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2022-11-19 06:58:29,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1425 Valid, 5292 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 861 Invalid, 2 Unknown, 0 Unchecked, 12.7s Time] [2022-11-19 06:58:29,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9008 states. [2022-11-19 06:58:30,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9008 to 8843. [2022-11-19 06:58:30,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8843 states, 5251 states have (on average 1.2570938868786898) internal successors, (6601), 5463 states have internal predecessors, (6601), 2503 states have call successors, (2503), 1070 states have call predecessors, (2503), 1064 states have return successors, (2533), 2423 states have call predecessors, (2533), 2501 states have call successors, (2533) [2022-11-19 06:58:30,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8843 states to 8843 states and 11637 transitions. [2022-11-19 06:58:30,376 INFO L78 Accepts]: Start accepts. Automaton has 8843 states and 11637 transitions. Word has length 115 [2022-11-19 06:58:30,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:58:30,377 INFO L495 AbstractCegarLoop]: Abstraction has 8843 states and 11637 transitions. [2022-11-19 06:58:30,377 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) [2022-11-19 06:58:30,377 INFO L276 IsEmpty]: Start isEmpty. Operand 8843 states and 11637 transitions. [2022-11-19 06:58:30,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-19 06:58:30,379 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:30,379 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:58:30,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-19 06:58:30,379 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 06:58:30,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:30,380 INFO L85 PathProgramCache]: Analyzing trace with hash 235311897, now seen corresponding path program 1 times [2022-11-19 06:58:30,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:58:30,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871848740] [2022-11-19 06:58:30,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:30,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:58:30,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:58:30,688 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 06:58:30,688 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:58:30,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871848740] [2022-11-19 06:58:30,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871848740] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:58:30,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:58:30,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:58:30,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309743289] [2022-11-19 06:58:30,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:58:30,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:58:30,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:58:30,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:58:30,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:58:30,690 INFO L87 Difference]: Start difference. First operand 8843 states and 11637 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) [2022-11-19 06:58:33,562 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 [] [2022-11-19 06:58:37,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:58:41,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:58:42,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:58:42,171 INFO L93 Difference]: Finished difference Result 8892 states and 11680 transitions. [2022-11-19 06:58:42,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:58:42,171 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 120 [2022-11-19 06:58:42,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:58:42,188 INFO L225 Difference]: With dead ends: 8892 [2022-11-19 06:58:42,188 INFO L226 Difference]: Without dead ends: 8890 [2022-11-19 06:58:42,191 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 [2022-11-19 06:58:42,191 INFO L413 NwaCegarLoop]: 1944 mSDtfsCounter, 1411 mSDsluCounter, 3336 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1414 SdHoareTripleChecker+Valid, 5280 SdHoareTripleChecker+Invalid, 858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-11-19 06:58:42,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1414 Valid, 5280 Invalid, 858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 854 Invalid, 3 Unknown, 0 Unchecked, 10.5s Time] [2022-11-19 06:58:42,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8890 states. [2022-11-19 06:58:42,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8890 to 8849. [2022-11-19 06:58:42,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8849 states, 5254 states have (on average 1.2569470879330034) internal successors, (6604), 5466 states have internal predecessors, (6604), 2505 states have call successors, (2505), 1071 states have call predecessors, (2505), 1065 states have return successors, (2535), 2425 states have call predecessors, (2535), 2503 states have call successors, (2535) [2022-11-19 06:58:42,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8849 states to 8849 states and 11644 transitions. [2022-11-19 06:58:42,960 INFO L78 Accepts]: Start accepts. Automaton has 8849 states and 11644 transitions. Word has length 120 [2022-11-19 06:58:42,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:58:42,961 INFO L495 AbstractCegarLoop]: Abstraction has 8849 states and 11644 transitions. [2022-11-19 06:58:42,961 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) [2022-11-19 06:58:42,961 INFO L276 IsEmpty]: Start isEmpty. Operand 8849 states and 11644 transitions. [2022-11-19 06:58:42,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-11-19 06:58:42,963 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:42,964 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:58:42,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-19 06:58:42,964 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 06:58:42,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:42,965 INFO L85 PathProgramCache]: Analyzing trace with hash -146502176, now seen corresponding path program 1 times [2022-11-19 06:58:42,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:58:42,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943191088] [2022-11-19 06:58:42,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:42,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:58:43,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:58:43,257 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 06:58:43,257 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:58:43,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943191088] [2022-11-19 06:58:43,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943191088] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:58:43,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:58:43,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:58:43,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682789777] [2022-11-19 06:58:43,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:58:43,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:58:43,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:58:43,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:58:43,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:58:43,259 INFO L87 Difference]: Start difference. First operand 8849 states and 11644 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) [2022-11-19 06:58:47,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:58:50,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:58:53,595 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 [] [2022-11-19 06:58:54,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:58:54,113 INFO L93 Difference]: Finished difference Result 8852 states and 11647 transitions. [2022-11-19 06:58:54,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:58:54,114 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 125 [2022-11-19 06:58:54,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:58:54,130 INFO L225 Difference]: With dead ends: 8852 [2022-11-19 06:58:54,130 INFO L226 Difference]: Without dead ends: 8850 [2022-11-19 06:58:54,133 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 [2022-11-19 06:58:54,133 INFO L413 NwaCegarLoop]: 1470 mSDtfsCounter, 1633 mSDsluCounter, 1663 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1636 SdHoareTripleChecker+Valid, 3133 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2022-11-19 06:58:54,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1636 Valid, 3133 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 552 Invalid, 3 Unknown, 0 Unchecked, 9.8s Time] [2022-11-19 06:58:54,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8850 states. [2022-11-19 06:58:54,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8850 to 8847. [2022-11-19 06:58:54,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8847 states, 5253 states have (on average 1.2568056348753094) internal successors, (6602), 5464 states have internal predecessors, (6602), 2505 states have call successors, (2505), 1071 states have call predecessors, (2505), 1065 states have return successors, (2535), 2425 states have call predecessors, (2535), 2503 states have call successors, (2535) [2022-11-19 06:58:54,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8847 states to 8847 states and 11642 transitions. [2022-11-19 06:58:54,867 INFO L78 Accepts]: Start accepts. Automaton has 8847 states and 11642 transitions. Word has length 125 [2022-11-19 06:58:54,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:58:54,868 INFO L495 AbstractCegarLoop]: Abstraction has 8847 states and 11642 transitions. [2022-11-19 06:58:54,868 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) [2022-11-19 06:58:54,868 INFO L276 IsEmpty]: Start isEmpty. Operand 8847 states and 11642 transitions. [2022-11-19 06:58:54,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-19 06:58:54,871 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:54,872 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:58:54,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-19 06:58:54,872 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 06:58:54,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:54,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1645004023, now seen corresponding path program 1 times [2022-11-19 06:58:54,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:58:54,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430606885] [2022-11-19 06:58:54,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:54,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:58:55,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:58:56,587 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2022-11-19 06:58:56,588 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:58:56,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430606885] [2022-11-19 06:58:56,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430606885] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:58:56,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:58:56,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 06:58:56,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39418414] [2022-11-19 06:58:56,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:58:56,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 06:58:56,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:58:56,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 06:58:56,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 06:58:56,590 INFO L87 Difference]: Start difference. First operand 8847 states and 11642 transitions. Second operand has 6 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-19 06:59:01,679 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 [] [2022-11-19 06:59:03,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:59:05,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:59:10,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:59:12,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:59:16,997 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 [] [2022-11-19 06:59:17,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:59:17,733 INFO L93 Difference]: Finished difference Result 8850 states and 11645 transitions. [2022-11-19 06:59:17,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 06:59:17,734 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 142 [2022-11-19 06:59:17,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:59:17,755 INFO L225 Difference]: With dead ends: 8850 [2022-11-19 06:59:17,755 INFO L226 Difference]: Without dead ends: 8848 [2022-11-19 06:59:17,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-19 06:59:17,759 INFO L413 NwaCegarLoop]: 1469 mSDtfsCounter, 1606 mSDsluCounter, 3863 mSDsCounter, 0 mSdLazyCounter, 1787 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1612 SdHoareTripleChecker+Valid, 5332 SdHoareTripleChecker+Invalid, 1792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1787 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:59:17,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1612 Valid, 5332 Invalid, 1792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1787 Invalid, 5 Unknown, 0 Unchecked, 20.0s Time] [2022-11-19 06:59:17,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8848 states. [2022-11-19 06:59:18,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8848 to 8845. [2022-11-19 06:59:18,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8845 states, 5252 states have (on average 1.2557121096725057) internal successors, (6595), 5462 states have internal predecessors, (6595), 2505 states have call successors, (2505), 1071 states have call predecessors, (2505), 1065 states have return successors, (2535), 2425 states have call predecessors, (2535), 2503 states have call successors, (2535) [2022-11-19 06:59:18,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8845 states to 8845 states and 11635 transitions. [2022-11-19 06:59:18,601 INFO L78 Accepts]: Start accepts. Automaton has 8845 states and 11635 transitions. Word has length 142 [2022-11-19 06:59:18,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:59:18,602 INFO L495 AbstractCegarLoop]: Abstraction has 8845 states and 11635 transitions. [2022-11-19 06:59:18,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-19 06:59:18,602 INFO L276 IsEmpty]: Start isEmpty. Operand 8845 states and 11635 transitions. [2022-11-19 06:59:18,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-19 06:59:18,605 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:59:18,605 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:59:18,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-19 06:59:18,605 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 06:59:18,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:59:18,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1208901268, now seen corresponding path program 1 times [2022-11-19 06:59:18,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:59:18,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672411157] [2022-11-19 06:59:18,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:59:18,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:59:18,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:59:18,915 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 06:59:18,916 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:59:18,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672411157] [2022-11-19 06:59:18,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672411157] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:59:18,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:59:18,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:59:18,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667506932] [2022-11-19 06:59:18,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:59:18,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:59:18,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:59:18,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:59:18,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:59:18,918 INFO L87 Difference]: Start difference. First operand 8845 states and 11635 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) [2022-11-19 06:59:21,878 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 [] [2022-11-19 06:59:25,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:59:28,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:59:32,106 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 [] [2022-11-19 06:59:33,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:59:33,419 INFO L93 Difference]: Finished difference Result 8884 states and 11667 transitions. [2022-11-19 06:59:33,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:59:33,419 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 130 [2022-11-19 06:59:33,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:59:33,440 INFO L225 Difference]: With dead ends: 8884 [2022-11-19 06:59:33,440 INFO L226 Difference]: Without dead ends: 8882 [2022-11-19 06:59:33,444 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 [2022-11-19 06:59:33,444 INFO L413 NwaCegarLoop]: 1940 mSDtfsCounter, 1405 mSDsluCounter, 3328 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1408 SdHoareTripleChecker+Valid, 5268 SdHoareTripleChecker+Invalid, 858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2022-11-19 06:59:33,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1408 Valid, 5268 Invalid, 858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 854 Invalid, 3 Unknown, 0 Unchecked, 13.2s Time] [2022-11-19 06:59:33,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8882 states. [2022-11-19 06:59:34,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8882 to 8857. [2022-11-19 06:59:34,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8857 states, 5258 states have (on average 1.2554203119056675) internal successors, (6601), 5468 states have internal predecessors, (6601), 2509 states have call successors, (2509), 1073 states have call predecessors, (2509), 1067 states have return successors, (2539), 2429 states have call predecessors, (2539), 2507 states have call successors, (2539) [2022-11-19 06:59:34,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8857 states to 8857 states and 11649 transitions. [2022-11-19 06:59:34,377 INFO L78 Accepts]: Start accepts. Automaton has 8857 states and 11649 transitions. Word has length 130 [2022-11-19 06:59:34,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:59:34,378 INFO L495 AbstractCegarLoop]: Abstraction has 8857 states and 11649 transitions. [2022-11-19 06:59:34,378 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) [2022-11-19 06:59:34,378 INFO L276 IsEmpty]: Start isEmpty. Operand 8857 states and 11649 transitions. [2022-11-19 06:59:34,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-19 06:59:34,381 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:59:34,381 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:59:34,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-19 06:59:34,382 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 06:59:34,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:59:34,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1574203319, now seen corresponding path program 1 times [2022-11-19 06:59:34,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:59:34,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709201053] [2022-11-19 06:59:34,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:59:34,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:59:34,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:59:34,800 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 06:59:34,800 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:59:34,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709201053] [2022-11-19 06:59:34,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709201053] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:59:34,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:59:34,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:59:34,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966470157] [2022-11-19 06:59:34,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:59:34,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:59:34,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:59:34,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:59:34,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:59:34,802 INFO L87 Difference]: Start difference. First operand 8857 states and 11649 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) [2022-11-19 06:59:37,712 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 [] [2022-11-19 06:59:41,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:59:46,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:59:47,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:59:47,218 INFO L93 Difference]: Finished difference Result 8882 states and 11665 transitions. [2022-11-19 06:59:47,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:59:47,219 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 135 [2022-11-19 06:59:47,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:59:47,238 INFO L225 Difference]: With dead ends: 8882 [2022-11-19 06:59:47,238 INFO L226 Difference]: Without dead ends: 8748 [2022-11-19 06:59:47,242 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 [2022-11-19 06:59:47,243 INFO L413 NwaCegarLoop]: 1941 mSDtfsCounter, 1401 mSDsluCounter, 3329 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1402 SdHoareTripleChecker+Valid, 5270 SdHoareTripleChecker+Invalid, 857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2022-11-19 06:59:47,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1402 Valid, 5270 Invalid, 857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 854 Invalid, 3 Unknown, 0 Unchecked, 11.2s Time] [2022-11-19 06:59:47,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8748 states. [2022-11-19 06:59:48,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8748 to 8729. [2022-11-19 06:59:48,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8729 states, 5194 states have (on average 1.257797458606084) internal successors, (6533), 5401 states have internal predecessors, (6533), 2465 states have call successors, (2465), 1054 states have call predecessors, (2465), 1047 states have return successors, (2493), 2387 states have call predecessors, (2493), 2461 states have call successors, (2493) [2022-11-19 06:59:48,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8729 states to 8729 states and 11491 transitions. [2022-11-19 06:59:48,435 INFO L78 Accepts]: Start accepts. Automaton has 8729 states and 11491 transitions. Word has length 135 [2022-11-19 06:59:48,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:59:48,436 INFO L495 AbstractCegarLoop]: Abstraction has 8729 states and 11491 transitions. [2022-11-19 06:59:48,436 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) [2022-11-19 06:59:48,436 INFO L276 IsEmpty]: Start isEmpty. Operand 8729 states and 11491 transitions. [2022-11-19 06:59:48,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-11-19 06:59:48,439 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:59:48,439 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:59:48,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-19 06:59:48,440 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 06:59:48,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:59:48,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1166197304, now seen corresponding path program 1 times [2022-11-19 06:59:48,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:59:48,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16531413] [2022-11-19 06:59:48,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:59:48,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:59:48,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:59:48,942 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-11-19 06:59:48,942 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:59:48,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16531413] [2022-11-19 06:59:48,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16531413] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:59:48,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:59:48,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:59:48,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126238628] [2022-11-19 06:59:48,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:59:48,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:59:48,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:59:48,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:59:48,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:59:48,944 INFO L87 Difference]: Start difference. First operand 8729 states and 11491 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-19 06:59:51,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:59:53,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:59:55,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:59:58,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:00:02,872 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 [] [2022-11-19 07:00:03,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:00:03,885 INFO L93 Difference]: Finished difference Result 18986 states and 25469 transitions. [2022-11-19 07:00:03,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:00:03,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 155 [2022-11-19 07:00:03,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:00:03,914 INFO L225 Difference]: With dead ends: 18986 [2022-11-19 07:00:03,914 INFO L226 Difference]: Without dead ends: 10278 [2022-11-19 07:00:03,949 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 [2022-11-19 07:00:03,950 INFO L413 NwaCegarLoop]: 1888 mSDtfsCounter, 234 mSDsluCounter, 1556 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 3444 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:00:03,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 3444 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 576 Invalid, 4 Unknown, 0 Unchecked, 13.6s Time] [2022-11-19 07:00:03,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10278 states. [2022-11-19 07:00:04,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10278 to 8749. [2022-11-19 07:00:05,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8749 states, 5209 states have (on average 1.2570550969475907) internal successors, (6548), 5416 states have internal predecessors, (6548), 2470 states have call successors, (2470), 1054 states have call predecessors, (2470), 1047 states have return successors, (2498), 2392 states have call predecessors, (2498), 2466 states have call successors, (2498) [2022-11-19 07:00:05,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8749 states to 8749 states and 11516 transitions. [2022-11-19 07:00:05,119 INFO L78 Accepts]: Start accepts. Automaton has 8749 states and 11516 transitions. Word has length 155 [2022-11-19 07:00:05,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:00:05,119 INFO L495 AbstractCegarLoop]: Abstraction has 8749 states and 11516 transitions. [2022-11-19 07:00:05,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-19 07:00:05,120 INFO L276 IsEmpty]: Start isEmpty. Operand 8749 states and 11516 transitions. [2022-11-19 07:00:05,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-11-19 07:00:05,123 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:00:05,123 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:00:05,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-19 07:00:05,124 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 07:00:05,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:00:05,124 INFO L85 PathProgramCache]: Analyzing trace with hash 704954887, now seen corresponding path program 1 times [2022-11-19 07:00:05,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:00:05,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29186366] [2022-11-19 07:00:05,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:00:05,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:00:05,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:00:05,769 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2022-11-19 07:00:05,770 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:00:05,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29186366] [2022-11-19 07:00:05,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29186366] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:00:05,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:00:05,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:00:05,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393753790] [2022-11-19 07:00:05,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:00:05,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:00:05,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:00:05,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:00:05,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:00:05,772 INFO L87 Difference]: Start difference. First operand 8749 states and 11516 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-19 07:00:09,120 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 [] [2022-11-19 07:00:13,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:00:17,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:00:18,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:00:18,173 INFO L93 Difference]: Finished difference Result 8754 states and 11520 transitions. [2022-11-19 07:00:18,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:00:18,174 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 164 [2022-11-19 07:00:18,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:00:18,197 INFO L225 Difference]: With dead ends: 8754 [2022-11-19 07:00:18,198 INFO L226 Difference]: Without dead ends: 8752 [2022-11-19 07:00:18,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:00:18,203 INFO L413 NwaCegarLoop]: 1503 mSDtfsCounter, 398 mSDsluCounter, 4272 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 5775 SdHoareTripleChecker+Invalid, 1039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:00:18,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 5775 Invalid, 1039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1035 Invalid, 3 Unknown, 0 Unchecked, 11.0s Time] [2022-11-19 07:00:18,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8752 states. [2022-11-19 07:00:19,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8752 to 8749. [2022-11-19 07:00:19,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8749 states, 5209 states have (on average 1.2545594163947016) internal successors, (6535), 5416 states have internal predecessors, (6535), 2470 states have call successors, (2470), 1054 states have call predecessors, (2470), 1047 states have return successors, (2498), 2392 states have call predecessors, (2498), 2466 states have call successors, (2498) [2022-11-19 07:00:19,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8749 states to 8749 states and 11503 transitions. [2022-11-19 07:00:19,434 INFO L78 Accepts]: Start accepts. Automaton has 8749 states and 11503 transitions. Word has length 164 [2022-11-19 07:00:19,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:00:19,435 INFO L495 AbstractCegarLoop]: Abstraction has 8749 states and 11503 transitions. [2022-11-19 07:00:19,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-19 07:00:19,435 INFO L276 IsEmpty]: Start isEmpty. Operand 8749 states and 11503 transitions. [2022-11-19 07:00:19,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-11-19 07:00:19,439 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:00:19,439 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:00:19,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-19 07:00:19,440 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 07:00:19,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:00:19,440 INFO L85 PathProgramCache]: Analyzing trace with hash 2126495694, now seen corresponding path program 1 times [2022-11-19 07:00:19,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:00:19,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101141103] [2022-11-19 07:00:19,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:00:19,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:00:19,612 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:00:19,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [206097595] [2022-11-19 07:00:19,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:00:19,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:00:19,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:00:19,619 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:00:19,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:00:21,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:00:21,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 3694 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-19 07:00:21,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:00:22,098 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-11-19 07:00:22,098 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:00:22,098 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:00:22,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101141103] [2022-11-19 07:00:22,099 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:00:22,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [206097595] [2022-11-19 07:00:22,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [206097595] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:00:22,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:00:22,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:00:22,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515084898] [2022-11-19 07:00:22,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:00:22,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:00:22,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:00:22,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:00:22,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:00:22,101 INFO L87 Difference]: Start difference. First operand 8749 states and 11503 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-19 07:00:26,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:00:28,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:00:31,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:00:35,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:00:37,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:00:39,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:00:42,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:00:44,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:00:45,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:00:45,104 INFO L93 Difference]: Finished difference Result 8784 states and 11527 transitions. [2022-11-19 07:00:45,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:00:45,104 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 160 [2022-11-19 07:00:45,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:00:45,122 INFO L225 Difference]: With dead ends: 8784 [2022-11-19 07:00:45,122 INFO L226 Difference]: Without dead ends: 8782 [2022-11-19 07:00:45,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:00:45,125 INFO L413 NwaCegarLoop]: 1474 mSDtfsCounter, 1527 mSDsluCounter, 3167 mSDsCounter, 0 mSdLazyCounter, 821 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1529 SdHoareTripleChecker+Valid, 4641 SdHoareTripleChecker+Invalid, 828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 821 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:00:45,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1529 Valid, 4641 Invalid, 828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 821 Invalid, 6 Unknown, 0 Unchecked, 21.6s Time] [2022-11-19 07:00:45,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8782 states. [2022-11-19 07:00:46,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8782 to 8780. [2022-11-19 07:00:46,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8780 states, 5230 states have (on average 1.251434034416826) internal successors, (6545), 5436 states have internal predecessors, (6545), 2470 states have call successors, (2470), 1065 states have call predecessors, (2470), 1058 states have return successors, (2498), 2392 states have call predecessors, (2498), 2466 states have call successors, (2498) [2022-11-19 07:00:46,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8780 states to 8780 states and 11513 transitions. [2022-11-19 07:00:46,163 INFO L78 Accepts]: Start accepts. Automaton has 8780 states and 11513 transitions. Word has length 160 [2022-11-19 07:00:46,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:00:46,163 INFO L495 AbstractCegarLoop]: Abstraction has 8780 states and 11513 transitions. [2022-11-19 07:00:46,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-19 07:00:46,164 INFO L276 IsEmpty]: Start isEmpty. Operand 8780 states and 11513 transitions. [2022-11-19 07:00:46,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-11-19 07:00:46,167 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:00:46,167 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:00:46,183 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-19 07:00:46,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:00:46,381 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 07:00:46,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:00:46,381 INFO L85 PathProgramCache]: Analyzing trace with hash 587313686, now seen corresponding path program 1 times [2022-11-19 07:00:46,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:00:46,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871098305] [2022-11-19 07:00:46,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:00:46,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:00:46,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:00:47,396 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2022-11-19 07:00:47,397 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:00:47,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871098305] [2022-11-19 07:00:47,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871098305] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:00:47,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:00:47,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 07:00:47,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75983625] [2022-11-19 07:00:47,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:00:47,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 07:00:47,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:00:47,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 07:00:47,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:00:47,399 INFO L87 Difference]: Start difference. First operand 8780 states and 11513 transitions. Second operand has 7 states, 6 states have (on average 12.5) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-19 07:00:51,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:00:57,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:01:04,048 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 [] [2022-11-19 07:01:06,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:01:06,221 INFO L93 Difference]: Finished difference Result 19169 states and 25677 transitions. [2022-11-19 07:01:06,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 07:01:06,221 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.5) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 2 states have call successors, (25) Word has length 169 [2022-11-19 07:01:06,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:01:06,248 INFO L225 Difference]: With dead ends: 19169 [2022-11-19 07:01:06,248 INFO L226 Difference]: Without dead ends: 10410 [2022-11-19 07:01:06,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:01:06,267 INFO L413 NwaCegarLoop]: 1885 mSDtfsCounter, 237 mSDsluCounter, 9068 mSDsCounter, 0 mSdLazyCounter, 1877 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 10953 SdHoareTripleChecker+Invalid, 1881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1877 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:01:06,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 10953 Invalid, 1881 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1877 Invalid, 3 Unknown, 0 Unchecked, 17.1s Time] [2022-11-19 07:01:06,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10410 states. [2022-11-19 07:01:07,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10410 to 8805. [2022-11-19 07:01:07,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8805 states, 5245 states have (on average 1.2507149666348905) internal successors, (6560), 5451 states have internal predecessors, (6560), 2470 states have call successors, (2470), 1065 states have call predecessors, (2470), 1068 states have return successors, (2513), 2402 states have call predecessors, (2513), 2466 states have call successors, (2513) [2022-11-19 07:01:07,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8805 states to 8805 states and 11543 transitions. [2022-11-19 07:01:07,255 INFO L78 Accepts]: Start accepts. Automaton has 8805 states and 11543 transitions. Word has length 169 [2022-11-19 07:01:07,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:01:07,255 INFO L495 AbstractCegarLoop]: Abstraction has 8805 states and 11543 transitions. [2022-11-19 07:01:07,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.5) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-19 07:01:07,255 INFO L276 IsEmpty]: Start isEmpty. Operand 8805 states and 11543 transitions. [2022-11-19 07:01:07,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-11-19 07:01:07,259 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:01:07,259 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:01:07,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-19 07:01:07,259 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 07:01:07,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:01:07,260 INFO L85 PathProgramCache]: Analyzing trace with hash 301803264, now seen corresponding path program 1 times [2022-11-19 07:01:07,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:01:07,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959872959] [2022-11-19 07:01:07,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:07,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:01:07,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:01:07,854 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-11-19 07:01:07,854 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:01:07,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959872959] [2022-11-19 07:01:07,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959872959] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:01:07,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:01:07,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:01:07,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683508985] [2022-11-19 07:01:07,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:01:07,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:01:07,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:01:07,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:01:07,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:01:07,856 INFO L87 Difference]: Start difference. First operand 8805 states and 11543 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-19 07:01:11,440 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 [] [2022-11-19 07:01:15,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:01:20,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:01:22,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:01:24,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:01:26,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:01:26,066 INFO L93 Difference]: Finished difference Result 16205 states and 21568 transitions. [2022-11-19 07:01:26,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:01:26,067 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) Word has length 173 [2022-11-19 07:01:26,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:01:26,095 INFO L225 Difference]: With dead ends: 16205 [2022-11-19 07:01:26,095 INFO L226 Difference]: Without dead ends: 9717 [2022-11-19 07:01:26,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:01:26,112 INFO L413 NwaCegarLoop]: 1819 mSDtfsCounter, 306 mSDsluCounter, 5043 mSDsCounter, 0 mSdLazyCounter, 1135 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 6862 SdHoareTripleChecker+Invalid, 1142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1135 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:01:26,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [470 Valid, 6862 Invalid, 1142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1135 Invalid, 5 Unknown, 0 Unchecked, 16.8s Time] [2022-11-19 07:01:26,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9717 states. [2022-11-19 07:01:27,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9717 to 8817. [2022-11-19 07:01:27,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8817 states, 5254 states have (on average 1.25028549676437) internal successors, (6569), 5460 states have internal predecessors, (6569), 2470 states have call successors, (2470), 1065 states have call predecessors, (2470), 1071 states have return successors, (2519), 2405 states have call predecessors, (2519), 2466 states have call successors, (2519) [2022-11-19 07:01:27,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8817 states to 8817 states and 11558 transitions. [2022-11-19 07:01:27,077 INFO L78 Accepts]: Start accepts. Automaton has 8817 states and 11558 transitions. Word has length 173 [2022-11-19 07:01:27,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:01:27,078 INFO L495 AbstractCegarLoop]: Abstraction has 8817 states and 11558 transitions. [2022-11-19 07:01:27,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-19 07:01:27,078 INFO L276 IsEmpty]: Start isEmpty. Operand 8817 states and 11558 transitions. [2022-11-19 07:01:27,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-11-19 07:01:27,081 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:01:27,081 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:01:27,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-19 07:01:27,082 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 07:01:27,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:01:27,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1917366401, now seen corresponding path program 1 times [2022-11-19 07:01:27,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:01:27,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752057703] [2022-11-19 07:01:27,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:27,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:01:27,248 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:01:27,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [577078829] [2022-11-19 07:01:27,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:27,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:01:27,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:01:27,251 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:01:27,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:01:30,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:01:30,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 3765 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:01:30,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:01:30,224 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2022-11-19 07:01:30,224 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:01:30,225 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:01:30,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752057703] [2022-11-19 07:01:30,225 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:01:30,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [577078829] [2022-11-19 07:01:30,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [577078829] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:01:30,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:01:30,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:01:30,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661592876] [2022-11-19 07:01:30,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:01:30,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:01:30,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:01:30,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:01:30,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:01:30,228 INFO L87 Difference]: Start difference. First operand 8817 states and 11558 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-19 07:01:33,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:01:36,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:01:41,441 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 [] [2022-11-19 07:01:42,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:01:42,257 INFO L93 Difference]: Finished difference Result 17813 states and 23411 transitions. [2022-11-19 07:01:42,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:01:42,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 174 [2022-11-19 07:01:42,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:01:42,293 INFO L225 Difference]: With dead ends: 17813 [2022-11-19 07:01:42,293 INFO L226 Difference]: Without dead ends: 9017 [2022-11-19 07:01:42,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:01:42,311 INFO L413 NwaCegarLoop]: 1417 mSDtfsCounter, 16 mSDsluCounter, 1403 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 2820 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:01:42,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 2820 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 524 Invalid, 3 Unknown, 0 Unchecked, 10.6s Time] [2022-11-19 07:01:42,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9017 states. [2022-11-19 07:01:43,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9017 to 8833. [2022-11-19 07:01:43,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8833 states, 5270 states have (on average 1.2495256166982922) internal successors, (6585), 5476 states have internal predecessors, (6585), 2470 states have call successors, (2470), 1065 states have call predecessors, (2470), 1071 states have return successors, (2519), 2405 states have call predecessors, (2519), 2466 states have call successors, (2519) [2022-11-19 07:01:43,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8833 states to 8833 states and 11574 transitions. [2022-11-19 07:01:43,392 INFO L78 Accepts]: Start accepts. Automaton has 8833 states and 11574 transitions. Word has length 174 [2022-11-19 07:01:43,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:01:43,393 INFO L495 AbstractCegarLoop]: Abstraction has 8833 states and 11574 transitions. [2022-11-19 07:01:43,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-19 07:01:43,393 INFO L276 IsEmpty]: Start isEmpty. Operand 8833 states and 11574 transitions. [2022-11-19 07:01:43,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-11-19 07:01:43,396 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:01:43,396 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:01:43,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:01:43,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2022-11-19 07:01:43,597 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 07:01:43,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:01:43,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1434665576, now seen corresponding path program 1 times [2022-11-19 07:01:43,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:01:43,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013887465] [2022-11-19 07:01:43,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:43,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:01:44,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:01:45,243 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2022-11-19 07:01:45,243 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:01:45,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013887465] [2022-11-19 07:01:45,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013887465] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:01:45,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:01:45,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 07:01:45,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034859191] [2022-11-19 07:01:45,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:01:45,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:01:45,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:01:45,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:01:45,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:01:45,245 INFO L87 Difference]: Start difference. First operand 8833 states and 11574 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-19 07:01:48,991 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 [] [2022-11-19 07:01:54,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:01:58,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:02:01,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:02:01,065 INFO L93 Difference]: Finished difference Result 12488 states and 16232 transitions. [2022-11-19 07:02:01,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 07:02:01,065 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 182 [2022-11-19 07:02:01,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:02:01,102 INFO L225 Difference]: With dead ends: 12488 [2022-11-19 07:02:01,102 INFO L226 Difference]: Without dead ends: 12486 [2022-11-19 07:02:01,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-11-19 07:02:01,109 INFO L413 NwaCegarLoop]: 2072 mSDtfsCounter, 2144 mSDsluCounter, 5514 mSDsCounter, 0 mSdLazyCounter, 1244 mSolverCounterSat, 651 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2148 SdHoareTripleChecker+Valid, 7586 SdHoareTripleChecker+Invalid, 1898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 651 IncrementalHoareTripleChecker+Valid, 1244 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2022-11-19 07:02:01,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2148 Valid, 7586 Invalid, 1898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [651 Valid, 1244 Invalid, 3 Unknown, 0 Unchecked, 13.9s Time] [2022-11-19 07:02:01,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12486 states. [2022-11-19 07:02:02,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12486 to 12146. [2022-11-19 07:02:02,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12146 states, 7233 states have (on average 1.2449882483063737) internal successors, (9005), 7514 states have internal predecessors, (9005), 3388 states have call successors, (3388), 1497 states have call predecessors, (3388), 1503 states have return successors, (3457), 3290 states have call predecessors, (3457), 3384 states have call successors, (3457) [2022-11-19 07:02:02,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12146 states to 12146 states and 15850 transitions. [2022-11-19 07:02:02,611 INFO L78 Accepts]: Start accepts. Automaton has 12146 states and 15850 transitions. Word has length 182 [2022-11-19 07:02:02,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:02:02,611 INFO L495 AbstractCegarLoop]: Abstraction has 12146 states and 15850 transitions. [2022-11-19 07:02:02,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-19 07:02:02,612 INFO L276 IsEmpty]: Start isEmpty. Operand 12146 states and 15850 transitions. [2022-11-19 07:02:02,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-11-19 07:02:02,617 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:02:02,617 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:02:02,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-19 07:02:02,618 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 07:02:02,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:02:02,618 INFO L85 PathProgramCache]: Analyzing trace with hash 257869342, now seen corresponding path program 1 times [2022-11-19 07:02:02,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:02:02,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780864886] [2022-11-19 07:02:02,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:02:02,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:02:03,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:02:03,611 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2022-11-19 07:02:03,611 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:02:03,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780864886] [2022-11-19 07:02:03,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780864886] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:02:03,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:02:03,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:02:03,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108980449] [2022-11-19 07:02:03,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:02:03,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:02:03,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:02:03,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:02:03,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:02:03,613 INFO L87 Difference]: Start difference. First operand 12146 states and 15850 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-19 07:02:07,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:02:11,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:02:15,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:02:17,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:02:19,697 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 [] [2022-11-19 07:02:21,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:02:21,530 INFO L93 Difference]: Finished difference Result 12260 states and 15934 transitions. [2022-11-19 07:02:21,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:02:21,531 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 198 [2022-11-19 07:02:21,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:02:21,560 INFO L225 Difference]: With dead ends: 12260 [2022-11-19 07:02:21,560 INFO L226 Difference]: Without dead ends: 12258 [2022-11-19 07:02:21,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:02:21,565 INFO L413 NwaCegarLoop]: 1447 mSDtfsCounter, 125 mSDsluCounter, 4274 mSDsCounter, 0 mSdLazyCounter, 1041 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 5721 SdHoareTripleChecker+Invalid, 1045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1041 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:02:21,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 5721 Invalid, 1045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1041 Invalid, 4 Unknown, 0 Unchecked, 16.3s Time] [2022-11-19 07:02:21,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12258 states. [2022-11-19 07:02:22,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12258 to 12136. [2022-11-19 07:02:22,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12136 states, 7231 states have (on average 1.2440879546397456) internal successors, (8996), 7510 states have internal predecessors, (8996), 3371 states have call successors, (3371), 1507 states have call predecessors, (3371), 1513 states have return successors, (3440), 3274 states have call predecessors, (3440), 3367 states have call successors, (3440) [2022-11-19 07:02:22,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12136 states to 12136 states and 15807 transitions. [2022-11-19 07:02:22,973 INFO L78 Accepts]: Start accepts. Automaton has 12136 states and 15807 transitions. Word has length 198 [2022-11-19 07:02:22,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:02:22,973 INFO L495 AbstractCegarLoop]: Abstraction has 12136 states and 15807 transitions. [2022-11-19 07:02:22,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-19 07:02:22,973 INFO L276 IsEmpty]: Start isEmpty. Operand 12136 states and 15807 transitions. [2022-11-19 07:02:22,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-11-19 07:02:22,978 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:02:22,978 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:02:22,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-19 07:02:22,979 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_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 07:02:22,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:02:22,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1710322055, now seen corresponding path program 1 times [2022-11-19 07:02:22,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:02:22,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62818402] [2022-11-19 07:02:22,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:02:22,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:02:23,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:02:23,544 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2022-11-19 07:02:23,544 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:02:23,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62818402] [2022-11-19 07:02:23,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62818402] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:02:23,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:02:23,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:02:23,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677022210] [2022-11-19 07:02:23,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:02:23,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:02:23,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:02:23,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:02:23,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:02:23,546 INFO L87 Difference]: Start difference. First operand 12136 states and 15807 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-19 07:02:26,556 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 [] [2022-11-19 07:02:30,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:02:34,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:02:35,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:02:35,542 INFO L93 Difference]: Finished difference Result 24950 states and 32654 transitions. [2022-11-19 07:02:35,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:02:35,542 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 191 [2022-11-19 07:02:35,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:02:35,577 INFO L225 Difference]: With dead ends: 24950 [2022-11-19 07:02:35,577 INFO L226 Difference]: Without dead ends: 12835 [2022-11-19 07:02:35,602 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 [2022-11-19 07:02:35,602 INFO L413 NwaCegarLoop]: 1469 mSDtfsCounter, 97 mSDsluCounter, 2844 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 27 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 4313 SdHoareTripleChecker+Invalid, 785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:02:35,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 4313 Invalid, 785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 755 Invalid, 3 Unknown, 0 Unchecked, 10.1s Time] [2022-11-19 07:02:35,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12835 states. [2022-11-19 07:02:36,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12835 to 12158. [2022-11-19 07:02:36,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12158 states, 7253 states have (on average 1.2433475803115952) internal successors, (9018), 7532 states have internal predecessors, (9018), 3371 states have call successors, (3371), 1507 states have call predecessors, (3371), 1513 states have return successors, (3440), 3274 states have call predecessors, (3440), 3367 states have call successors, (3440) [2022-11-19 07:02:36,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12158 states to 12158 states and 15829 transitions. [2022-11-19 07:02:36,976 INFO L78 Accepts]: Start accepts. Automaton has 12158 states and 15829 transitions. Word has length 191 [2022-11-19 07:02:36,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:02:36,977 INFO L495 AbstractCegarLoop]: Abstraction has 12158 states and 15829 transitions. [2022-11-19 07:02:36,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-19 07:02:36,977 INFO L276 IsEmpty]: Start isEmpty. Operand 12158 states and 15829 transitions. [2022-11-19 07:02:36,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-11-19 07:02:36,980 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:02:36,980 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:02:36,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-19 07:02:36,981 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ldv_linux_block_genhd_del_gendiskErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 07:02:36,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:02:36,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1545978610, now seen corresponding path program 1 times [2022-11-19 07:02:36,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:02:36,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422227895] [2022-11-19 07:02:36,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:02:36,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:02:37,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:02:37,952 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 419 trivial. 0 not checked. [2022-11-19 07:02:37,952 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:02:37,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422227895] [2022-11-19 07:02:37,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422227895] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:02:37,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:02:37,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 07:02:37,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990796386] [2022-11-19 07:02:37,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:02:37,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 07:02:37,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:02:37,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 07:02:37,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:02:37,954 INFO L87 Difference]: Start difference. First operand 12158 states and 15829 transitions. Second operand has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (42), 4 states have call predecessors, (42), 2 states have call successors, (42) [2022-11-19 07:02:41,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:02:46,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:02:52,532 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 [] [2022-11-19 07:02:53,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:02:53,692 INFO L93 Difference]: Finished difference Result 14828 states and 19094 transitions. [2022-11-19 07:02:53,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 07:02:53,693 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (42), 4 states have call predecessors, (42), 2 states have call successors, (42) Word has length 248 [2022-11-19 07:02:53,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:02:53,728 INFO L225 Difference]: With dead ends: 14828 [2022-11-19 07:02:53,728 INFO L226 Difference]: Without dead ends: 12649 [2022-11-19 07:02:53,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:02:53,738 INFO L413 NwaCegarLoop]: 1509 mSDtfsCounter, 37 mSDsluCounter, 7467 mSDsCounter, 0 mSdLazyCounter, 1613 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 8976 SdHoareTripleChecker+Invalid, 1616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1613 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:02:53,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 8976 Invalid, 1616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1613 Invalid, 3 Unknown, 0 Unchecked, 14.1s Time] [2022-11-19 07:02:53,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12649 states. [2022-11-19 07:02:55,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12649 to 12206. [2022-11-19 07:02:55,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12206 states, 7285 states have (on average 1.2422786547700755) internal successors, (9050), 7564 states have internal predecessors, (9050), 3371 states have call successors, (3371), 1507 states have call predecessors, (3371), 1529 states have return successors, (3456), 3290 states have call predecessors, (3456), 3367 states have call successors, (3456) [2022-11-19 07:02:55,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12206 states to 12206 states and 15877 transitions. [2022-11-19 07:02:55,220 INFO L78 Accepts]: Start accepts. Automaton has 12206 states and 15877 transitions. Word has length 248 [2022-11-19 07:02:55,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:02:55,220 INFO L495 AbstractCegarLoop]: Abstraction has 12206 states and 15877 transitions. [2022-11-19 07:02:55,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (42), 4 states have call predecessors, (42), 2 states have call successors, (42) [2022-11-19 07:02:55,221 INFO L276 IsEmpty]: Start isEmpty. Operand 12206 states and 15877 transitions. [2022-11-19 07:02:55,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-11-19 07:02:55,224 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:02:55,224 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:02:55,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-11-19 07:02:55,225 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-19 07:02:55,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:02:55,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1038992358, now seen corresponding path program 1 times [2022-11-19 07:02:55,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:02:55,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133204184] [2022-11-19 07:02:55,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:02:55,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:02:55,457 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:02:55,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1171611772] [2022-11-19 07:02:55,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:02:55,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:02:55,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:02:55,462 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:02:55,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec133fe-bd92-40bd-86f5-79ae0fdb6a02/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 07:02:59,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:02:59,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 4119 conjuncts, 89 conjunts are in the unsatisfiable core [2022-11-19 07:02:59,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:02:59,566 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 07:02:59,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 07:03:03,263 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2022-11-19 07:03:03,281 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2022-11-19 07:03:05,605 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 247 treesize of output 202 [2022-11-19 07:03:05,625 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:03:05,626 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 219 treesize of output 165 [2022-11-19 07:03:05,727 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 70 proven. 8 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-11-19 07:03:05,727 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:03:06,661 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2022-11-19 07:03:09,237 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2022-11-19 07:03:09,237 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:03:09,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133204184] [2022-11-19 07:03:09,237 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:03:09,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1171611772] [2022-11-19 07:03:09,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1171611772] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:03:09,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2052813253] [2022-11-19 07:03:09,265 INFO L159 IcfgInterpreter]: Started Sifa with 151 locations of interest [2022-11-19 07:03:09,265 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:03:09,270 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:03:09,276 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:03:09,277 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:03:11,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:11,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,154 INFO L217 Elim1Store]: Index analysis took 174 ms [2022-11-19 07:03:12,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 41 select indices, 41 select index equivalence classes, 350 disjoint index pairs (out of 820 index pairs), introduced 41 new quantified variables, introduced 0 case distinctions, treesize of input 393 treesize of output 505 [2022-11-19 07:03:12,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:12,882 INFO L217 Elim1Store]: Index analysis took 225 ms [2022-11-19 07:03:13,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 41 select indices, 41 select index equivalence classes, 347 disjoint index pairs (out of 820 index pairs), introduced 41 new quantified variables, introduced 0 case distinctions, treesize of input 385 treesize of output 489 [2022-11-19 07:03:13,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:13,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:13,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:13,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:13,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:13,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:13,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:13,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:13,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:13,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:13,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:13,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:13,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:13,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:13,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:13,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:13,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:13,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:13,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:13,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:13,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:13,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:13,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:13,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:13,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:13,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:13,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:13,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:13,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:13,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:13,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:13,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:13,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:13,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:13,386 INFO L217 Elim1Store]: Index analysis took 109 ms [2022-11-19 07:03:13,602 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 41 select indices, 41 select index equivalence classes, 347 disjoint index pairs (out of 820 index pairs), introduced 41 new quantified variables, introduced 0 case distinctions, treesize of input 385 treesize of output 489 [2022-11-19 07:03:14,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:14,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:14,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:14,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:14,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:14,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:14,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:14,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:14,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:14,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:14,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:14,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:14,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:14,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:14,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:14,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:14,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:14,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:14,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:14,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:14,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:14,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:14,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:14,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:14,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:14,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:14,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:14,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:14,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:14,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:14,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:14,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:14,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:14,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:14,338 INFO L217 Elim1Store]: Index analysis took 166 ms [2022-11-19 07:03:14,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 41 select indices, 41 select index equivalence classes, 347 disjoint index pairs (out of 820 index pairs), introduced 41 new quantified variables, introduced 0 case distinctions, treesize of input 383 treesize of output 491 [2022-11-19 07:03:14,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:14,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:14,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:14,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:14,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:14,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:14,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:14,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:14,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:14,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:14,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:14,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:14,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:14,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:14,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,078 INFO L217 Elim1Store]: Index analysis took 145 ms [2022-11-19 07:03:15,350 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 41 select indices, 41 select index equivalence classes, 347 disjoint index pairs (out of 820 index pairs), introduced 41 new quantified variables, introduced 0 case distinctions, treesize of input 387 treesize of output 491 [2022-11-19 07:03:15,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:15,634 INFO L217 Elim1Store]: Index analysis took 114 ms [2022-11-19 07:03:15,892 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 41 select indices, 41 select index equivalence classes, 347 disjoint index pairs (out of 820 index pairs), introduced 41 new quantified variables, introduced 0 case distinctions, treesize of input 387 treesize of output 491 [2022-11-19 07:03:16,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:16,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:16,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:16,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:16,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:16,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:16,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:16,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:16,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:16,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:16,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:16,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:16,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:16,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:16,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:16,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:16,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:16,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:16,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:16,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:16,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:16,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:16,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:16,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:16,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:16,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:16,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:16,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:16,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:16,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:16,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:16,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:16,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:16,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:03:16,435 INFO L217 Elim1Store]: Index analysis took 116 ms [2022-11-19 07:03:16,660 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 41 select indices, 41 select index equivalence classes, 348 disjoint index pairs (out of 820 index pairs), introduced 41 new quantified variables, introduced 0 case distinctions, treesize of input 392 treesize of output 500 [2022-11-19 07:03:17,481 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 45 select indices, 45 select index equivalence classes, 1035 disjoint index pairs (out of 990 index pairs), introduced 45 new quantified variables, introduced 0 case distinctions, treesize of input 1420 treesize of output 1250 [2022-11-19 07:04:13,415 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-19 07:04:13,425 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 07:04:31,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:31,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:31,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:31,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:31,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:31,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:31,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:31,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:31,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:31,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:31,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:31,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:32,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:32,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:32,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:32,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:32,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:32,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:32,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:32,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:32,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:32,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:32,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:32,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:32,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:32,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:32,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:32,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:32,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:32,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:32,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:32,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:32,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:32,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:32,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:32,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:32,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:32,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:32,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:32,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:32,101 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:04:32,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:32,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:32,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:32,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:32,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:32,120 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:04:32,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:32,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:32,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:32,506 INFO L321 Elim1Store]: treesize reduction 28, result has 40.4 percent of original size [2022-11-19 07:04:32,509 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 54 select indices, 54 select index equivalence classes, 443 disjoint index pairs (out of 1431 index pairs), introduced 54 new quantified variables, introduced 2 case distinctions, treesize of input 5975 treesize of output 5817 [2022-11-19 07:04:33,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,751 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:04:33,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,773 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:04:33,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:33,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:34,405 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-19 07:04:34,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 54 select indices, 54 select index equivalence classes, 443 disjoint index pairs (out of 1431 index pairs), introduced 54 new quantified variables, introduced 2 case distinctions, treesize of input 5967 treesize of output 5813 [2022-11-19 07:04:35,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:35,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:36,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:36,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:36,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:36,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:36,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:36,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:36,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:36,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:36,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:36,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:36,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:36,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:36,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:36,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:36,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:36,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:36,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:36,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:36,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:36,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:36,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:36,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:36,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:36,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:36,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:36,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:36,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:36,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:36,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:36,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:36,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:36,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:36,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:36,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:36,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:36,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:36,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:36,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:36,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:36,225 INFO L217 Elim1Store]: Index analysis took 819 ms [2022-11-19 07:04:43,362 WARN L233 SmtUtils]: Spent 7.13s on a formula simplification. DAG size of input: 525 DAG size of output: 427 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 07:04:43,364 INFO L321 Elim1Store]: treesize reduction 799, result has 50.0 percent of original size [2022-11-19 07:04:43,367 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 48 select indices, 48 select index equivalence classes, 1081 disjoint index pairs (out of 1128 index pairs), introduced 48 new quantified variables, introduced 94 case distinctions, treesize of input 5955 treesize of output 5927