./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--virtio_blk.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V --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 cc21d3f2365aa3e9759266a2897b17abd63f704e2f2c46d2220f73d4b814d4db --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:05:42,681 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:05:42,685 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:05:42,758 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:05:42,759 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:05:42,760 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:05:42,763 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:05:42,766 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:05:42,769 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:05:42,770 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:05:42,772 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:05:42,774 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:05:42,775 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:05:42,777 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:05:42,779 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:05:42,781 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:05:42,783 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:05:42,784 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:05:42,787 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:05:42,791 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:05:42,793 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:05:42,803 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:05:42,805 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:05:42,807 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:05:42,813 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:05:42,818 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:05:42,819 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:05:42,822 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:05:42,822 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:05:42,825 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:05:42,825 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:05:42,827 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:05:42,829 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:05:42,831 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:05:42,833 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:05:42,833 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:05:42,834 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:05:42,834 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:05:42,835 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:05:42,836 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:05:42,837 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:05:42,838 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 02:05:42,898 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:05:42,898 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:05:42,899 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:05:42,899 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:05:42,908 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:05:42,909 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:05:42,909 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:05:42,910 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:05:42,910 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:05:42,910 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:05:42,912 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:05:42,912 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:05:42,912 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:05:42,913 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:05:42,913 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:05:42,913 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:05:42,914 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:05:42,914 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:05:42,915 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:05:42,915 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:05:42,915 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:05:42,916 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:05:42,916 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:05:42,916 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:05:42,916 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:05:42,917 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:05:42,917 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:05:42,917 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:05:42,918 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:05:42,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:05:42,919 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:05:42,919 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:05:42,919 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:05:42,920 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:05:42,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:05:42,920 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:05:42,920 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:05:42,921 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:05:42,921 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc21d3f2365aa3e9759266a2897b17abd63f704e2f2c46d2220f73d4b814d4db [2021-11-23 02:05:43,286 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:05:43,333 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:05:43,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:05:43,337 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:05:43,337 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:05:43,339 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i [2021-11-23 02:05:43,421 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/data/7a0d3ed49/7b39ff6d672641ed8df59159eecc3f2f/FLAG42fa218bb [2021-11-23 02:05:44,542 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:05:44,543 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i [2021-11-23 02:05:44,601 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/data/7a0d3ed49/7b39ff6d672641ed8df59159eecc3f2f/FLAG42fa218bb [2021-11-23 02:05:44,809 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/data/7a0d3ed49/7b39ff6d672641ed8df59159eecc3f2f [2021-11-23 02:05:44,812 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:05:44,814 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:05:44,816 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:05:44,816 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:05:44,821 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:05:44,822 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:05:44" (1/1) ... [2021-11-23 02:05:44,823 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1de8a144 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:44, skipping insertion in model container [2021-11-23 02:05:44,824 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:05:44" (1/1) ... [2021-11-23 02:05:44,833 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:05:45,010 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:05:48,974 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[300556,300569] [2021-11-23 02:05:48,977 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[300701,300714] [2021-11-23 02:05:48,978 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[300847,300860] [2021-11-23 02:05:48,979 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[301012,301025] [2021-11-23 02:05:48,980 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[301170,301183] [2021-11-23 02:05:48,980 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[301328,301341] [2021-11-23 02:05:48,981 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[301486,301499] [2021-11-23 02:05:48,982 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[301646,301659] [2021-11-23 02:05:48,982 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[301805,301818] [2021-11-23 02:05:48,983 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[301944,301957] [2021-11-23 02:05:48,984 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[302086,302099] [2021-11-23 02:05:48,984 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[302235,302248] [2021-11-23 02:05:48,985 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[302374,302387] [2021-11-23 02:05:48,986 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[302529,302542] [2021-11-23 02:05:48,989 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[302689,302702] [2021-11-23 02:05:48,990 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[302840,302853] [2021-11-23 02:05:48,990 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[302991,303004] [2021-11-23 02:05:48,991 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[303143,303156] [2021-11-23 02:05:48,992 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[303292,303305] [2021-11-23 02:05:48,992 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[303440,303453] [2021-11-23 02:05:48,993 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[303597,303610] [2021-11-23 02:05:48,994 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[303746,303759] [2021-11-23 02:05:48,994 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[303902,303915] [2021-11-23 02:05:48,995 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[304055,304068] [2021-11-23 02:05:48,996 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[304201,304214] [2021-11-23 02:05:48,996 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[304344,304357] [2021-11-23 02:05:48,997 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[304496,304509] [2021-11-23 02:05:48,998 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[304642,304655] [2021-11-23 02:05:48,998 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[304787,304800] [2021-11-23 02:05:48,999 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[304941,304954] [2021-11-23 02:05:49,000 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[305092,305105] [2021-11-23 02:05:49,000 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[305247,305260] [2021-11-23 02:05:49,001 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[305399,305412] [2021-11-23 02:05:49,002 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[305554,305567] [2021-11-23 02:05:49,002 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[305718,305731] [2021-11-23 02:05:49,003 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[305874,305887] [2021-11-23 02:05:49,004 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[306038,306051] [2021-11-23 02:05:49,004 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[306180,306193] [2021-11-23 02:05:49,005 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[306338,306351] [2021-11-23 02:05:49,006 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[306505,306518] [2021-11-23 02:05:49,006 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[306664,306677] [2021-11-23 02:05:49,007 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[306823,306836] [2021-11-23 02:05:49,008 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[306972,306985] [2021-11-23 02:05:49,008 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[307119,307132] [2021-11-23 02:05:49,009 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[307258,307271] [2021-11-23 02:05:49,010 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[307421,307434] [2021-11-23 02:05:49,010 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[307587,307600] [2021-11-23 02:05:49,011 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[307751,307764] [2021-11-23 02:05:49,012 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[307916,307929] [2021-11-23 02:05:49,012 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[308081,308094] [2021-11-23 02:05:49,013 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[308247,308260] [2021-11-23 02:05:49,014 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[308412,308425] [2021-11-23 02:05:49,015 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[308579,308592] [2021-11-23 02:05:49,015 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[308739,308752] [2021-11-23 02:05:49,016 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[308901,308914] [2021-11-23 02:05:49,017 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[309060,309073] [2021-11-23 02:05:49,017 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[309206,309219] [2021-11-23 02:05:49,018 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[309349,309362] [2021-11-23 02:05:49,019 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[309493,309506] [2021-11-23 02:05:49,019 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[309636,309649] [2021-11-23 02:05:49,020 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[309780,309793] [2021-11-23 02:05:49,020 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[309921,309934] [2021-11-23 02:05:49,021 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[310059,310072] [2021-11-23 02:05:49,022 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[310217,310230] [2021-11-23 02:05:49,022 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[310376,310389] [2021-11-23 02:05:49,023 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[310532,310545] [2021-11-23 02:05:49,024 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[310681,310694] [2021-11-23 02:05:49,024 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[310833,310846] [2021-11-23 02:05:49,025 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[310984,310997] [2021-11-23 02:05:49,026 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[311133,311146] [2021-11-23 02:05:49,026 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[311285,311298] [2021-11-23 02:05:49,027 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[311433,311446] [2021-11-23 02:05:49,027 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[311586,311599] [2021-11-23 02:05:49,028 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[311737,311750] [2021-11-23 02:05:49,029 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[311887,311900] [2021-11-23 02:05:49,029 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[312034,312047] [2021-11-23 02:05:49,030 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[312185,312198] [2021-11-23 02:05:49,031 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[312336,312349] [2021-11-23 02:05:49,031 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[312484,312497] [2021-11-23 02:05:49,032 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[312650,312663] [2021-11-23 02:05:49,033 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[312819,312832] [2021-11-23 02:05:49,033 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[312986,312999] [2021-11-23 02:05:49,034 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[313154,313167] [2021-11-23 02:05:49,035 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[313304,313317] [2021-11-23 02:05:49,035 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[313451,313464] [2021-11-23 02:05:49,036 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[313612,313625] [2021-11-23 02:05:49,037 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[313782,313795] [2021-11-23 02:05:49,037 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[313944,313957] [2021-11-23 02:05:49,052 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:05:49,086 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:05:49,586 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[300556,300569] [2021-11-23 02:05:49,587 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[300701,300714] [2021-11-23 02:05:49,587 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[300847,300860] [2021-11-23 02:05:49,588 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[301012,301025] [2021-11-23 02:05:49,588 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[301170,301183] [2021-11-23 02:05:49,589 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[301328,301341] [2021-11-23 02:05:49,589 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[301486,301499] [2021-11-23 02:05:49,590 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[301646,301659] [2021-11-23 02:05:49,590 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[301805,301818] [2021-11-23 02:05:49,591 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[301944,301957] [2021-11-23 02:05:49,592 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[302086,302099] [2021-11-23 02:05:49,593 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[302235,302248] [2021-11-23 02:05:49,593 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[302374,302387] [2021-11-23 02:05:49,594 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[302529,302542] [2021-11-23 02:05:49,594 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[302689,302702] [2021-11-23 02:05:49,595 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[302840,302853] [2021-11-23 02:05:49,595 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[302991,303004] [2021-11-23 02:05:49,596 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[303143,303156] [2021-11-23 02:05:49,596 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[303292,303305] [2021-11-23 02:05:49,597 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[303440,303453] [2021-11-23 02:05:49,597 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[303597,303610] [2021-11-23 02:05:49,598 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[303746,303759] [2021-11-23 02:05:49,599 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[303902,303915] [2021-11-23 02:05:49,600 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[304055,304068] [2021-11-23 02:05:49,601 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[304201,304214] [2021-11-23 02:05:49,601 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[304344,304357] [2021-11-23 02:05:49,602 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[304496,304509] [2021-11-23 02:05:49,603 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[304642,304655] [2021-11-23 02:05:49,603 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[304787,304800] [2021-11-23 02:05:49,604 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[304941,304954] [2021-11-23 02:05:49,604 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[305092,305105] [2021-11-23 02:05:49,605 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[305247,305260] [2021-11-23 02:05:49,605 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[305399,305412] [2021-11-23 02:05:49,607 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[305554,305567] [2021-11-23 02:05:49,608 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[305718,305731] [2021-11-23 02:05:49,609 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[305874,305887] [2021-11-23 02:05:49,609 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[306038,306051] [2021-11-23 02:05:49,611 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[306180,306193] [2021-11-23 02:05:49,611 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[306338,306351] [2021-11-23 02:05:49,612 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[306505,306518] [2021-11-23 02:05:49,614 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[306664,306677] [2021-11-23 02:05:49,614 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[306823,306836] [2021-11-23 02:05:49,615 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[306972,306985] [2021-11-23 02:05:49,615 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[307119,307132] [2021-11-23 02:05:49,616 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[307258,307271] [2021-11-23 02:05:49,616 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[307421,307434] [2021-11-23 02:05:49,617 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[307587,307600] [2021-11-23 02:05:49,617 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[307751,307764] [2021-11-23 02:05:49,619 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[307916,307929] [2021-11-23 02:05:49,619 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[308081,308094] [2021-11-23 02:05:49,620 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[308247,308260] [2021-11-23 02:05:49,621 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[308412,308425] [2021-11-23 02:05:49,621 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[308579,308592] [2021-11-23 02:05:49,622 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[308739,308752] [2021-11-23 02:05:49,623 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[308901,308914] [2021-11-23 02:05:49,624 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[309060,309073] [2021-11-23 02:05:49,628 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[309206,309219] [2021-11-23 02:05:49,629 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[309349,309362] [2021-11-23 02:05:49,629 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[309493,309506] [2021-11-23 02:05:49,630 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[309636,309649] [2021-11-23 02:05:49,631 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[309780,309793] [2021-11-23 02:05:49,632 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[309921,309934] [2021-11-23 02:05:49,633 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[310059,310072] [2021-11-23 02:05:49,638 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[310217,310230] [2021-11-23 02:05:49,639 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[310376,310389] [2021-11-23 02:05:49,645 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[310532,310545] [2021-11-23 02:05:49,646 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[310681,310694] [2021-11-23 02:05:49,647 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[310833,310846] [2021-11-23 02:05:49,647 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[310984,310997] [2021-11-23 02:05:49,648 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[311133,311146] [2021-11-23 02:05:49,649 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[311285,311298] [2021-11-23 02:05:49,650 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[311433,311446] [2021-11-23 02:05:49,651 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[311586,311599] [2021-11-23 02:05:49,651 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[311737,311750] [2021-11-23 02:05:49,651 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[311887,311900] [2021-11-23 02:05:49,652 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[312034,312047] [2021-11-23 02:05:49,652 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[312185,312198] [2021-11-23 02:05:49,653 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[312336,312349] [2021-11-23 02:05:49,655 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[312484,312497] [2021-11-23 02:05:49,656 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[312650,312663] [2021-11-23 02:05:49,657 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[312819,312832] [2021-11-23 02:05:49,658 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[312986,312999] [2021-11-23 02:05:49,658 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[313154,313167] [2021-11-23 02:05:49,659 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[313304,313317] [2021-11-23 02:05:49,660 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[313451,313464] [2021-11-23 02:05:49,661 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[313612,313625] [2021-11-23 02:05:49,662 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[313782,313795] [2021-11-23 02:05:49,662 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[313944,313957] [2021-11-23 02:05:49,670 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:05:49,894 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:05:49,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:49 WrapperNode [2021-11-23 02:05:49,895 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:05:49,896 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:05:49,896 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:05:49,896 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:05:49,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:49" (1/1) ... [2021-11-23 02:05:50,089 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:49" (1/1) ... [2021-11-23 02:05:50,367 INFO L137 Inliner]: procedures = 554, calls = 1441, calls flagged for inlining = 247, calls inlined = 157, statements flattened = 3174 [2021-11-23 02:05:50,368 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:05:50,369 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:05:50,369 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:05:50,369 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:05:50,380 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:49" (1/1) ... [2021-11-23 02:05:50,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:49" (1/1) ... [2021-11-23 02:05:50,407 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:49" (1/1) ... [2021-11-23 02:05:50,408 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:49" (1/1) ... [2021-11-23 02:05:50,544 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:49" (1/1) ... [2021-11-23 02:05:50,583 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:49" (1/1) ... [2021-11-23 02:05:50,615 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:49" (1/1) ... [2021-11-23 02:05:50,648 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:05:50,650 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:05:50,650 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:05:50,650 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:05:50,652 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:49" (1/1) ... [2021-11-23 02:05:50,662 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:05:50,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:05:50,696 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:05:50,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:05:50,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_97 [2021-11-23 02:05:50,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_97 [2021-11-23 02:05:50,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-23 02:05:50,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-23 02:05:50,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 02:05:50,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 02:05:50,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-23 02:05:50,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-23 02:05:50,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_del_gendisk [2021-11-23 02:05:50,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_del_gendisk [2021-11-23 02:05:50,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-23 02:05:50,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-23 02:05:50,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-23 02:05:50,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-23 02:05:50,777 INFO L130 BoogieDeclarations]: Found specification of procedure init_vq [2021-11-23 02:05:50,777 INFO L138 BoogieDeclarations]: Found implementation of procedure init_vq [2021-11-23 02:05:50,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-23 02:05:50,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-23 02:05:50,778 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_config_changed [2021-11-23 02:05:50,778 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_config_changed [2021-11-23 02:05:50,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-23 02:05:50,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-23 02:05:50,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-23 02:05:50,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-23 02:05:50,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-23 02:05:50,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-23 02:05:50,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:05:50,780 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_get_cache_mode [2021-11-23 02:05:50,780 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_get_cache_mode [2021-11-23 02:05:50,780 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-23 02:05:50,781 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-23 02:05:50,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-23 02:05:50,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-23 02:05:50,781 INFO L130 BoogieDeclarations]: Found specification of procedure string_get_size [2021-11-23 02:05:50,782 INFO L138 BoogieDeclarations]: Found implementation of procedure string_get_size [2021-11-23 02:05:50,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 02:05:50,782 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_free_tag_set [2021-11-23 02:05:50,782 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_free_tag_set [2021-11-23 02:05:50,782 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_update_cache_mode [2021-11-23 02:05:50,783 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_update_cache_mode [2021-11-23 02:05:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 02:05:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_blk_cleanup_queue [2021-11-23 02:05:50,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_blk_cleanup_queue [2021-11-23 02:05:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-23 02:05:50,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-23 02:05:50,784 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2021-11-23 02:05:50,784 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2021-11-23 02:05:50,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-23 02:05:50,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-23 02:05:50,785 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_flush [2021-11-23 02:05:50,785 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_flush [2021-11-23 02:05:50,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-23 02:05:50,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-23 02:05:50,785 INFO L130 BoogieDeclarations]: Found specification of procedure ida_simple_remove [2021-11-23 02:05:50,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ida_simple_remove [2021-11-23 02:05:50,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:05:50,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-23 02:05:50,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-23 02:05:50,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-23 02:05:50,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-23 02:05:50,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-23 02:05:50,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-23 02:05:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-23 02:05:50,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-23 02:05:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2021-11-23 02:05:50,794 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2021-11-23 02:05:50,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-23 02:05:50,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-23 02:05:50,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-23 02:05:50,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-23 02:05:50,795 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_cread8 [2021-11-23 02:05:50,796 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_cread8 [2021-11-23 02:05:50,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:05:50,796 INFO L130 BoogieDeclarations]: Found specification of procedure revalidate_disk [2021-11-23 02:05:50,797 INFO L138 BoogieDeclarations]: Found implementation of procedure revalidate_disk [2021-11-23 02:05:50,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:05:50,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-23 02:05:50,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-23 02:05:50,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 02:05:50,800 INFO L130 BoogieDeclarations]: Found specification of procedure blk_cleanup_queue [2021-11-23 02:05:50,801 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_cleanup_queue [2021-11-23 02:05:50,801 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 02:05:50,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 02:05:50,801 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_remove [2021-11-23 02:05:50,801 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_remove [2021-11-23 02:05:50,802 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_cache_type_store [2021-11-23 02:05:50,802 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_cache_type_store [2021-11-23 02:05:50,802 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~u32~0 [2021-11-23 02:05:50,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~u32~0 [2021-11-23 02:05:50,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-23 02:05:50,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-23 02:05:50,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:05:50,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:05:50,803 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-23 02:05:50,803 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-23 02:05:50,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 02:05:50,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 02:05:50,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-23 02:05:50,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-23 02:05:50,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-23 02:05:50,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-23 02:05:50,805 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_cread32 [2021-11-23 02:05:50,805 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_cread32 [2021-11-23 02:05:50,805 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~VOID [2021-11-23 02:05:50,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~VOID [2021-11-23 02:05:50,806 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2021-11-23 02:05:50,806 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2021-11-23 02:05:50,806 INFO L130 BoogieDeclarations]: Found specification of procedure del_gendisk [2021-11-23 02:05:50,806 INFO L138 BoogieDeclarations]: Found implementation of procedure del_gendisk [2021-11-23 02:05:50,806 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2021-11-23 02:05:50,806 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2021-11-23 02:05:50,807 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2021-11-23 02:05:50,807 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2021-11-23 02:05:50,807 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_cread16 [2021-11-23 02:05:50,807 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_cread16 [2021-11-23 02:05:50,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-23 02:05:50,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-23 02:05:50,808 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_has_feature [2021-11-23 02:05:50,808 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_has_feature [2021-11-23 02:05:50,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-23 02:05:50,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-23 02:05:50,810 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_cread64 [2021-11-23 02:05:50,810 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_cread64 [2021-11-23 02:05:50,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:05:50,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-23 02:05:50,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-23 02:05:50,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_block_request__double_get [2021-11-23 02:05:50,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_block_request__double_get [2021-11-23 02:05:50,811 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_rq_to_pdu [2021-11-23 02:05:50,811 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_rq_to_pdu [2021-11-23 02:05:50,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 02:05:50,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 02:05:50,812 INFO L130 BoogieDeclarations]: Found specification of procedure virtio32_to_cpu [2021-11-23 02:05:50,812 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio32_to_cpu [2021-11-23 02:05:50,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-23 02:05:50,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-23 02:05:50,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-23 02:05:50,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-23 02:05:50,813 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_start_stopped_hw_queues [2021-11-23 02:05:50,813 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_start_stopped_hw_queues [2021-11-23 02:05:50,813 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_segment_size [2021-11-23 02:05:50,814 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_segment_size [2021-11-23 02:05:50,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-23 02:05:50,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-23 02:05:50,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-23 02:05:50,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-23 02:05:50,815 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-23 02:05:50,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-23 02:05:50,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-23 02:05:50,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-23 02:05:50,815 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-23 02:05:50,815 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-23 02:05:50,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:05:50,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-23 02:05:50,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-23 02:05:50,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-23 02:05:50,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-23 02:05:50,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_virtio_blk_vq [2021-11-23 02:05:50,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_virtio_blk_vq [2021-11-23 02:05:50,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-23 02:05:50,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-23 02:05:50,818 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-23 02:05:50,818 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-23 02:05:50,818 INFO L130 BoogieDeclarations]: Found specification of procedure queue_logical_block_size [2021-11-23 02:05:50,818 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_logical_block_size [2021-11-23 02:05:50,818 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-23 02:05:50,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-23 02:05:50,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-23 02:05:50,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-23 02:05:50,819 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2021-11-23 02:05:50,819 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2021-11-23 02:05:50,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_put_disk [2021-11-23 02:05:50,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_put_disk [2021-11-23 02:05:50,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:05:50,820 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_device_ready [2021-11-23 02:05:50,820 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_device_ready [2021-11-23 02:05:51,798 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:05:51,805 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:05:52,393 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-23 02:05:54,394 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:05:54,919 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:05:54,919 INFO L301 CfgBuilder]: Removed 14 assume(true) statements. [2021-11-23 02:05:54,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:05:54 BoogieIcfgContainer [2021-11-23 02:05:54,925 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:05:54,927 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:05:54,927 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:05:54,933 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:05:54,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:05:44" (1/3) ... [2021-11-23 02:05:54,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@537f372c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:05:54, skipping insertion in model container [2021-11-23 02:05:54,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:49" (2/3) ... [2021-11-23 02:05:54,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@537f372c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:05:54, skipping insertion in model container [2021-11-23 02:05:54,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:05:54" (3/3) ... [2021-11-23 02:05:54,938 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i [2021-11-23 02:05:54,945 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:05:54,946 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2021-11-23 02:05:55,036 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:05:55,055 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 02:05:55,055 INFO L340 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2021-11-23 02:05:55,130 INFO L276 IsEmpty]: Start isEmpty. Operand has 941 states, 559 states have (on average 1.3470483005366727) internal successors, (753), 600 states have internal predecessors, (753), 281 states have call successors, (281), 80 states have call predecessors, (281), 79 states have return successors, (278), 276 states have call predecessors, (278), 278 states have call successors, (278) [2021-11-23 02:05:55,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-23 02:05:55,140 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:05:55,141 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:05:55,142 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-23 02:05:55,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:05:55,150 INFO L85 PathProgramCache]: Analyzing trace with hash -72558991, now seen corresponding path program 1 times [2021-11-23 02:05:55,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:05:55,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204785688] [2021-11-23 02:05:55,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:05:55,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:05:55,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:05:55,827 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 02:05:55,828 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:05:55,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204785688] [2021-11-23 02:05:55,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204785688] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:05:55,829 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:05:55,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:05:55,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934970187] [2021-11-23 02:05:55,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:05:55,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:05:55,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:05:55,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:05:55,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:05:55,901 INFO L87 Difference]: Start difference. First operand has 941 states, 559 states have (on average 1.3470483005366727) internal successors, (753), 600 states have internal predecessors, (753), 281 states have call successors, (281), 80 states have call predecessors, (281), 79 states have return successors, (278), 276 states have call predecessors, (278), 278 states have call successors, (278) 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) [2021-11-23 02:05:57,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:05:57,471 INFO L93 Difference]: Finished difference Result 1745 states and 2481 transitions. [2021-11-23 02:05:57,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:05:57,475 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 [2021-11-23 02:05:57,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:05:57,512 INFO L225 Difference]: With dead ends: 1745 [2021-11-23 02:05:57,512 INFO L226 Difference]: Without dead ends: 819 [2021-11-23 02:05:57,529 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:05:57,537 INFO L933 BasicCegarLoop]: 907 mSDtfsCounter, 1054 mSDsluCounter, 1067 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1056 SdHoareTripleChecker+Valid, 1814 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:05:57,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1056 Valid, 1814 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-23 02:05:57,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2021-11-23 02:05:57,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 819. [2021-11-23 02:05:57,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 819 states, 474 states have (on average 1.238396624472574) internal successors, (587), 523 states have internal predecessors, (587), 236 states have call successors, (236), 79 states have call predecessors, (236), 78 states have return successors, (234), 232 states have call predecessors, (234), 234 states have call successors, (234) [2021-11-23 02:05:57,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 819 states and 1057 transitions. [2021-11-23 02:05:57,760 INFO L78 Accepts]: Start accepts. Automaton has 819 states and 1057 transitions. Word has length 38 [2021-11-23 02:05:57,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:05:57,762 INFO L470 AbstractCegarLoop]: Abstraction has 819 states and 1057 transitions. [2021-11-23 02:05:57,762 INFO L471 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) [2021-11-23 02:05:57,762 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 1057 transitions. [2021-11-23 02:05:57,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-23 02:05:57,766 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:05:57,767 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:05:57,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:05:57,767 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-23 02:05:57,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:05:57,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1425836187, now seen corresponding path program 1 times [2021-11-23 02:05:57,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:05:57,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692138525] [2021-11-23 02:05:57,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:05:57,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:05:57,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:05:57,935 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 02:05:57,936 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:05:57,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692138525] [2021-11-23 02:05:57,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692138525] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:05:57,937 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:05:57,937 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:05:57,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464958178] [2021-11-23 02:05:57,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:05:57,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:05:57,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:05:57,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:05:57,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:05:57,942 INFO L87 Difference]: Start difference. First operand 819 states and 1057 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) [2021-11-23 02:05:59,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:05:59,633 INFO L93 Difference]: Finished difference Result 1483 states and 1908 transitions. [2021-11-23 02:05:59,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:05:59,634 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 [2021-11-23 02:05:59,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:05:59,653 INFO L225 Difference]: With dead ends: 1483 [2021-11-23 02:05:59,654 INFO L226 Difference]: Without dead ends: 1481 [2021-11-23 02:05:59,655 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:05:59,656 INFO L933 BasicCegarLoop]: 1167 mSDtfsCounter, 858 mSDsluCounter, 2365 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 860 SdHoareTripleChecker+Valid, 3200 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-23 02:05:59,657 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [860 Valid, 3200 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-23 02:05:59,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1481 states. [2021-11-23 02:05:59,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1481 to 1307. [2021-11-23 02:05:59,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1307 states, 756 states have (on average 1.2328042328042328) internal successors, (932), 821 states have internal predecessors, (932), 388 states have call successors, (388), 133 states have call predecessors, (388), 132 states have return successors, (401), 381 states have call predecessors, (401), 386 states have call successors, (401) [2021-11-23 02:05:59,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1307 states to 1307 states and 1721 transitions. [2021-11-23 02:05:59,832 INFO L78 Accepts]: Start accepts. Automaton has 1307 states and 1721 transitions. Word has length 43 [2021-11-23 02:05:59,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:05:59,833 INFO L470 AbstractCegarLoop]: Abstraction has 1307 states and 1721 transitions. [2021-11-23 02:05:59,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (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) [2021-11-23 02:05:59,833 INFO L276 IsEmpty]: Start isEmpty. Operand 1307 states and 1721 transitions. [2021-11-23 02:05:59,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-23 02:05:59,848 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:05:59,848 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:05:59,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:05:59,849 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-23 02:05:59,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:05:59,850 INFO L85 PathProgramCache]: Analyzing trace with hash -661721421, now seen corresponding path program 1 times [2021-11-23 02:05:59,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:05:59,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703632809] [2021-11-23 02:05:59,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:05:59,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:05:59,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:06:00,045 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 02:06:00,046 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:06:00,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703632809] [2021-11-23 02:06:00,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703632809] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:06:00,046 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:06:00,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:06:00,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005302271] [2021-11-23 02:06:00,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:06:00,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:06:00,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:06:00,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:06:00,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:06:00,050 INFO L87 Difference]: Start difference. First operand 1307 states and 1721 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) [2021-11-23 02:06:01,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:06:01,016 INFO L93 Difference]: Finished difference Result 1307 states and 1721 transitions. [2021-11-23 02:06:01,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:06:01,016 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 [2021-11-23 02:06:01,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:06:01,030 INFO L225 Difference]: With dead ends: 1307 [2021-11-23 02:06:01,030 INFO L226 Difference]: Without dead ends: 1305 [2021-11-23 02:06:01,031 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:06:01,033 INFO L933 BasicCegarLoop]: 892 mSDtfsCounter, 1036 mSDsluCounter, 1051 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1038 SdHoareTripleChecker+Valid, 1784 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-23 02:06:01,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1038 Valid, 1784 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-23 02:06:01,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1305 states. [2021-11-23 02:06:01,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1305 to 1305. [2021-11-23 02:06:01,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1305 states, 755 states have (on average 1.2317880794701987) internal successors, (930), 819 states have internal predecessors, (930), 388 states have call successors, (388), 133 states have call predecessors, (388), 132 states have return successors, (401), 381 states have call predecessors, (401), 386 states have call successors, (401) [2021-11-23 02:06:01,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1305 states to 1305 states and 1719 transitions. [2021-11-23 02:06:01,146 INFO L78 Accepts]: Start accepts. Automaton has 1305 states and 1719 transitions. Word has length 48 [2021-11-23 02:06:01,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:06:01,147 INFO L470 AbstractCegarLoop]: Abstraction has 1305 states and 1719 transitions. [2021-11-23 02:06:01,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (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) [2021-11-23 02:06:01,148 INFO L276 IsEmpty]: Start isEmpty. Operand 1305 states and 1719 transitions. [2021-11-23 02:06:01,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-23 02:06:01,149 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:06:01,150 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:06:01,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:06:01,150 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-23 02:06:01,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:06:01,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1691561906, now seen corresponding path program 1 times [2021-11-23 02:06:01,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:06:01,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152905791] [2021-11-23 02:06:01,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:06:01,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:06:01,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:06:01,341 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 02:06:01,342 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:06:01,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152905791] [2021-11-23 02:06:01,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152905791] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:06:01,342 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:06:01,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:06:01,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592454399] [2021-11-23 02:06:01,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:06:01,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:06:01,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:06:01,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:06:01,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:06:01,345 INFO L87 Difference]: Start difference. First operand 1305 states and 1719 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) [2021-11-23 02:06:02,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:06:02,572 INFO L93 Difference]: Finished difference Result 1721 states and 2195 transitions. [2021-11-23 02:06:02,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:06:02,573 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 [2021-11-23 02:06:02,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:06:02,589 INFO L225 Difference]: With dead ends: 1721 [2021-11-23 02:06:02,590 INFO L226 Difference]: Without dead ends: 1719 [2021-11-23 02:06:02,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:06:02,592 INFO L933 BasicCegarLoop]: 960 mSDtfsCounter, 1022 mSDsluCounter, 1427 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1024 SdHoareTripleChecker+Valid, 2178 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:06:02,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1024 Valid, 2178 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-23 02:06:02,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1719 states. [2021-11-23 02:06:02,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1719 to 1676. [2021-11-23 02:06:02,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1676 states, 968 states have (on average 1.225206611570248) internal successors, (1186), 1038 states have internal predecessors, (1186), 485 states have call successors, (485), 194 states have call predecessors, (485), 193 states have return successors, (498), 474 states have call predecessors, (498), 483 states have call successors, (498) [2021-11-23 02:06:02,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1676 states to 1676 states and 2169 transitions. [2021-11-23 02:06:02,737 INFO L78 Accepts]: Start accepts. Automaton has 1676 states and 2169 transitions. Word has length 53 [2021-11-23 02:06:02,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:06:02,738 INFO L470 AbstractCegarLoop]: Abstraction has 1676 states and 2169 transitions. [2021-11-23 02:06:02,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-23 02:06:02,739 INFO L276 IsEmpty]: Start isEmpty. Operand 1676 states and 2169 transitions. [2021-11-23 02:06:02,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-23 02:06:02,741 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:06:02,741 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:06:02,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 02:06:02,741 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-23 02:06:02,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:06:02,742 INFO L85 PathProgramCache]: Analyzing trace with hash -907063550, now seen corresponding path program 1 times [2021-11-23 02:06:02,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:06:02,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106988733] [2021-11-23 02:06:02,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:06:02,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:06:02,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:06:02,895 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 02:06:02,896 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:06:02,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106988733] [2021-11-23 02:06:02,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106988733] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:06:02,897 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:06:02,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:06:02,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473089494] [2021-11-23 02:06:02,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:06:02,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:06:02,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:06:02,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:06:02,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:06:02,900 INFO L87 Difference]: Start difference. First operand 1676 states and 2169 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) [2021-11-23 02:06:04,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:06:04,107 INFO L93 Difference]: Finished difference Result 1676 states and 2169 transitions. [2021-11-23 02:06:04,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:06:04,108 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 [2021-11-23 02:06:04,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:06:04,126 INFO L225 Difference]: With dead ends: 1676 [2021-11-23 02:06:04,127 INFO L226 Difference]: Without dead ends: 1674 [2021-11-23 02:06:04,128 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:06:04,129 INFO L933 BasicCegarLoop]: 891 mSDtfsCounter, 1033 mSDsluCounter, 1050 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1035 SdHoareTripleChecker+Valid, 1782 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:06:04,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1035 Valid, 1782 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-23 02:06:04,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1674 states. [2021-11-23 02:06:04,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1674 to 1674. [2021-11-23 02:06:04,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1674 states, 967 states have (on average 1.2233712512926578) internal successors, (1183), 1036 states have internal predecessors, (1183), 485 states have call successors, (485), 194 states have call predecessors, (485), 193 states have return successors, (498), 474 states have call predecessors, (498), 483 states have call successors, (498) [2021-11-23 02:06:04,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1674 states to 1674 states and 2166 transitions. [2021-11-23 02:06:04,293 INFO L78 Accepts]: Start accepts. Automaton has 1674 states and 2166 transitions. Word has length 58 [2021-11-23 02:06:04,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:06:04,294 INFO L470 AbstractCegarLoop]: Abstraction has 1674 states and 2166 transitions. [2021-11-23 02:06:04,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-23 02:06:04,295 INFO L276 IsEmpty]: Start isEmpty. Operand 1674 states and 2166 transitions. [2021-11-23 02:06:04,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-23 02:06:04,296 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:06:04,297 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:06:04,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 02:06:04,297 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-23 02:06:04,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:06:04,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1437075313, now seen corresponding path program 1 times [2021-11-23 02:06:04,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:06:04,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694215951] [2021-11-23 02:06:04,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:06:04,299 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:06:04,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:06:04,426 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 02:06:04,426 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:06:04,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694215951] [2021-11-23 02:06:04,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694215951] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:06:04,427 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:06:04,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:06:04,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45751056] [2021-11-23 02:06:04,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:06:04,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:06:04,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:06:04,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:06:04,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:06:04,429 INFO L87 Difference]: Start difference. First operand 1674 states and 2166 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) [2021-11-23 02:06:05,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:06:05,542 INFO L93 Difference]: Finished difference Result 1674 states and 2166 transitions. [2021-11-23 02:06:05,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:06:05,542 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 [2021-11-23 02:06:05,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:06:05,557 INFO L225 Difference]: With dead ends: 1674 [2021-11-23 02:06:05,557 INFO L226 Difference]: Without dead ends: 1672 [2021-11-23 02:06:05,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:06:05,559 INFO L933 BasicCegarLoop]: 889 mSDtfsCounter, 1030 mSDsluCounter, 1048 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1032 SdHoareTripleChecker+Valid, 1778 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:06:05,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1032 Valid, 1778 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-23 02:06:05,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1672 states. [2021-11-23 02:06:05,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1672 to 1672. [2021-11-23 02:06:05,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1672 states, 966 states have (on average 1.2215320910973084) internal successors, (1180), 1034 states have internal predecessors, (1180), 485 states have call successors, (485), 194 states have call predecessors, (485), 193 states have return successors, (498), 474 states have call predecessors, (498), 483 states have call successors, (498) [2021-11-23 02:06:05,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1672 states to 1672 states and 2163 transitions. [2021-11-23 02:06:05,697 INFO L78 Accepts]: Start accepts. Automaton has 1672 states and 2163 transitions. Word has length 63 [2021-11-23 02:06:05,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:06:05,698 INFO L470 AbstractCegarLoop]: Abstraction has 1672 states and 2163 transitions. [2021-11-23 02:06:05,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-23 02:06:05,698 INFO L276 IsEmpty]: Start isEmpty. Operand 1672 states and 2163 transitions. [2021-11-23 02:06:05,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-23 02:06:05,700 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:06:05,700 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:06:05,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 02:06:05,701 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-23 02:06:05,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:06:05,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1805829050, now seen corresponding path program 1 times [2021-11-23 02:06:05,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:06:05,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176305353] [2021-11-23 02:06:05,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:06:05,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:06:05,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:06:05,817 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 02:06:05,817 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:06:05,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176305353] [2021-11-23 02:06:05,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176305353] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:06:05,818 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:06:05,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:06:05,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439518061] [2021-11-23 02:06:05,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:06:05,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:06:05,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:06:05,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:06:05,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:06:05,820 INFO L87 Difference]: Start difference. First operand 1672 states and 2163 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) [2021-11-23 02:06:06,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:06:06,991 INFO L93 Difference]: Finished difference Result 1672 states and 2163 transitions. [2021-11-23 02:06:06,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:06:06,992 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 [2021-11-23 02:06:06,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:06:07,007 INFO L225 Difference]: With dead ends: 1672 [2021-11-23 02:06:07,008 INFO L226 Difference]: Without dead ends: 1670 [2021-11-23 02:06:07,009 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:06:07,010 INFO L933 BasicCegarLoop]: 887 mSDtfsCounter, 1027 mSDsluCounter, 1046 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1029 SdHoareTripleChecker+Valid, 1774 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:06:07,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1029 Valid, 1774 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-23 02:06:07,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1670 states. [2021-11-23 02:06:07,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1670 to 1670. [2021-11-23 02:06:07,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1670 states, 965 states have (on average 1.2196891191709844) internal successors, (1177), 1032 states have internal predecessors, (1177), 485 states have call successors, (485), 194 states have call predecessors, (485), 193 states have return successors, (498), 474 states have call predecessors, (498), 483 states have call successors, (498) [2021-11-23 02:06:07,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1670 states to 1670 states and 2160 transitions. [2021-11-23 02:06:07,146 INFO L78 Accepts]: Start accepts. Automaton has 1670 states and 2160 transitions. Word has length 68 [2021-11-23 02:06:07,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:06:07,146 INFO L470 AbstractCegarLoop]: Abstraction has 1670 states and 2160 transitions. [2021-11-23 02:06:07,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-23 02:06:07,147 INFO L276 IsEmpty]: Start isEmpty. Operand 1670 states and 2160 transitions. [2021-11-23 02:06:07,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-23 02:06:07,149 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:06:07,149 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:06:07,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 02:06:07,150 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-23 02:06:07,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:06:07,151 INFO L85 PathProgramCache]: Analyzing trace with hash -317745981, now seen corresponding path program 1 times [2021-11-23 02:06:07,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:06:07,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663146089] [2021-11-23 02:06:07,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:06:07,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:06:07,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:06:07,316 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 02:06:07,316 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:06:07,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663146089] [2021-11-23 02:06:07,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663146089] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:06:07,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:06:07,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:06:07,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848189657] [2021-11-23 02:06:07,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:06:07,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:06:07,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:06:07,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:06:07,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:06:07,320 INFO L87 Difference]: Start difference. First operand 1670 states and 2160 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) [2021-11-23 02:06:08,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:06:08,679 INFO L93 Difference]: Finished difference Result 1670 states and 2160 transitions. [2021-11-23 02:06:08,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:06:08,680 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 [2021-11-23 02:06:08,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:06:08,695 INFO L225 Difference]: With dead ends: 1670 [2021-11-23 02:06:08,695 INFO L226 Difference]: Without dead ends: 1668 [2021-11-23 02:06:08,697 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:06:08,698 INFO L933 BasicCegarLoop]: 885 mSDtfsCounter, 1028 mSDsluCounter, 1040 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1030 SdHoareTripleChecker+Valid, 1766 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:06:08,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1030 Valid, 1766 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-23 02:06:08,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1668 states. [2021-11-23 02:06:08,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1668 to 1668. [2021-11-23 02:06:08,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1668 states, 964 states have (on average 1.2178423236514522) internal successors, (1174), 1030 states have internal predecessors, (1174), 485 states have call successors, (485), 194 states have call predecessors, (485), 193 states have return successors, (498), 474 states have call predecessors, (498), 483 states have call successors, (498) [2021-11-23 02:06:08,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1668 states to 1668 states and 2157 transitions. [2021-11-23 02:06:08,842 INFO L78 Accepts]: Start accepts. Automaton has 1668 states and 2157 transitions. Word has length 73 [2021-11-23 02:06:08,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:06:08,844 INFO L470 AbstractCegarLoop]: Abstraction has 1668 states and 2157 transitions. [2021-11-23 02:06:08,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-23 02:06:08,845 INFO L276 IsEmpty]: Start isEmpty. Operand 1668 states and 2157 transitions. [2021-11-23 02:06:08,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-23 02:06:08,847 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:06:08,847 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:06:08,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 02:06:08,847 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-23 02:06:08,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:06:08,848 INFO L85 PathProgramCache]: Analyzing trace with hash -411064634, now seen corresponding path program 1 times [2021-11-23 02:06:08,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:06:08,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563540708] [2021-11-23 02:06:08,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:06:08,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:06:08,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:06:08,982 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 02:06:08,983 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:06:08,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563540708] [2021-11-23 02:06:08,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563540708] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:06:08,983 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:06:08,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:06:08,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702624880] [2021-11-23 02:06:08,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:06:08,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:06:08,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:06:08,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:06:08,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:06:08,987 INFO L87 Difference]: Start difference. First operand 1668 states and 2157 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) [2021-11-23 02:06:10,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:06:10,043 INFO L93 Difference]: Finished difference Result 1668 states and 2157 transitions. [2021-11-23 02:06:10,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:06:10,043 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 [2021-11-23 02:06:10,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:06:10,064 INFO L225 Difference]: With dead ends: 1668 [2021-11-23 02:06:10,064 INFO L226 Difference]: Without dead ends: 1666 [2021-11-23 02:06:10,070 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:06:10,073 INFO L933 BasicCegarLoop]: 883 mSDtfsCounter, 1020 mSDsluCounter, 1042 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1022 SdHoareTripleChecker+Valid, 1766 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-23 02:06:10,073 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1022 Valid, 1766 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-23 02:06:10,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1666 states. [2021-11-23 02:06:10,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1666 to 1666. [2021-11-23 02:06:10,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1666 states, 963 states have (on average 1.2159916926272067) internal successors, (1171), 1028 states have internal predecessors, (1171), 485 states have call successors, (485), 194 states have call predecessors, (485), 193 states have return successors, (498), 474 states have call predecessors, (498), 483 states have call successors, (498) [2021-11-23 02:06:10,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1666 states to 1666 states and 2154 transitions. [2021-11-23 02:06:10,281 INFO L78 Accepts]: Start accepts. Automaton has 1666 states and 2154 transitions. Word has length 75 [2021-11-23 02:06:10,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:06:10,282 INFO L470 AbstractCegarLoop]: Abstraction has 1666 states and 2154 transitions. [2021-11-23 02:06:10,282 INFO L471 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) [2021-11-23 02:06:10,282 INFO L276 IsEmpty]: Start isEmpty. Operand 1666 states and 2154 transitions. [2021-11-23 02:06:10,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-23 02:06:10,284 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:06:10,284 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:06:10,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-23 02:06:10,285 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-23 02:06:10,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:06:10,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1334497226, now seen corresponding path program 1 times [2021-11-23 02:06:10,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:06:10,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181459958] [2021-11-23 02:06:10,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:06:10,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:06:10,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:06:10,411 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 02:06:10,411 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:06:10,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181459958] [2021-11-23 02:06:10,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181459958] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:06:10,412 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:06:10,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:06:10,415 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270772966] [2021-11-23 02:06:10,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:06:10,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:06:10,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:06:10,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:06:10,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:06:10,417 INFO L87 Difference]: Start difference. First operand 1666 states and 2154 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) [2021-11-23 02:06:11,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:06:11,305 INFO L93 Difference]: Finished difference Result 1666 states and 2154 transitions. [2021-11-23 02:06:11,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:06:11,307 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 [2021-11-23 02:06:11,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:06:11,322 INFO L225 Difference]: With dead ends: 1666 [2021-11-23 02:06:11,323 INFO L226 Difference]: Without dead ends: 1664 [2021-11-23 02:06:11,324 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:06:11,325 INFO L933 BasicCegarLoop]: 881 mSDtfsCounter, 1019 mSDsluCounter, 1040 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1021 SdHoareTripleChecker+Valid, 1762 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-23 02:06:11,326 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1021 Valid, 1762 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-23 02:06:11,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1664 states. [2021-11-23 02:06:11,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1664 to 1664. [2021-11-23 02:06:11,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1664 states, 962 states have (on average 1.2141372141372142) internal successors, (1168), 1026 states have internal predecessors, (1168), 485 states have call successors, (485), 194 states have call predecessors, (485), 193 states have return successors, (498), 474 states have call predecessors, (498), 483 states have call successors, (498) [2021-11-23 02:06:11,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1664 states to 1664 states and 2151 transitions. [2021-11-23 02:06:11,475 INFO L78 Accepts]: Start accepts. Automaton has 1664 states and 2151 transitions. Word has length 80 [2021-11-23 02:06:11,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:06:11,476 INFO L470 AbstractCegarLoop]: Abstraction has 1664 states and 2151 transitions. [2021-11-23 02:06:11,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-23 02:06:11,477 INFO L276 IsEmpty]: Start isEmpty. Operand 1664 states and 2151 transitions. [2021-11-23 02:06:11,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-23 02:06:11,479 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:06:11,479 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:06:11,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-23 02:06:11,480 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-23 02:06:11,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:06:11,481 INFO L85 PathProgramCache]: Analyzing trace with hash -847188097, now seen corresponding path program 1 times [2021-11-23 02:06:11,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:06:11,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520928527] [2021-11-23 02:06:11,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:06:11,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:06:11,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:06:11,586 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 02:06:11,587 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:06:11,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520928527] [2021-11-23 02:06:11,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520928527] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:06:11,587 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:06:11,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:06:11,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175258317] [2021-11-23 02:06:11,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:06:11,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:06:11,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:06:11,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:06:11,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:06:11,590 INFO L87 Difference]: Start difference. First operand 1664 states and 2151 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) [2021-11-23 02:06:14,404 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 02:06:14,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:06:14,794 INFO L93 Difference]: Finished difference Result 1664 states and 2151 transitions. [2021-11-23 02:06:14,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:06:14,798 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 [2021-11-23 02:06:14,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:06:14,816 INFO L225 Difference]: With dead ends: 1664 [2021-11-23 02:06:14,816 INFO L226 Difference]: Without dead ends: 1662 [2021-11-23 02:06:14,818 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:06:14,819 INFO L933 BasicCegarLoop]: 879 mSDtfsCounter, 1016 mSDsluCounter, 1038 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1018 SdHoareTripleChecker+Valid, 1758 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:06:14,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1018 Valid, 1758 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 320 Invalid, 1 Unknown, 0 Unchecked, 3.0s Time] [2021-11-23 02:06:14,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1662 states. [2021-11-23 02:06:14,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1662 to 1662. [2021-11-23 02:06:14,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1662 states, 961 states have (on average 1.2122788761706556) internal successors, (1165), 1024 states have internal predecessors, (1165), 485 states have call successors, (485), 194 states have call predecessors, (485), 193 states have return successors, (498), 474 states have call predecessors, (498), 483 states have call successors, (498) [2021-11-23 02:06:15,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1662 states to 1662 states and 2148 transitions. [2021-11-23 02:06:15,007 INFO L78 Accepts]: Start accepts. Automaton has 1662 states and 2148 transitions. Word has length 85 [2021-11-23 02:06:15,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:06:15,008 INFO L470 AbstractCegarLoop]: Abstraction has 1662 states and 2148 transitions. [2021-11-23 02:06:15,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-23 02:06:15,009 INFO L276 IsEmpty]: Start isEmpty. Operand 1662 states and 2148 transitions. [2021-11-23 02:06:15,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-23 02:06:15,012 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:06:15,012 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:06:15,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-23 02:06:15,013 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-23 02:06:15,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:06:15,014 INFO L85 PathProgramCache]: Analyzing trace with hash 817177368, now seen corresponding path program 1 times [2021-11-23 02:06:15,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:06:15,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998367267] [2021-11-23 02:06:15,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:06:15,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:06:15,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:06:15,135 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 02:06:15,136 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:06:15,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998367267] [2021-11-23 02:06:15,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998367267] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:06:15,136 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:06:15,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:06:15,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753753535] [2021-11-23 02:06:15,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:06:15,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:06:15,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:06:15,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:06:15,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:06:15,139 INFO L87 Difference]: Start difference. First operand 1662 states and 2148 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) [2021-11-23 02:06:16,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:06:16,369 INFO L93 Difference]: Finished difference Result 1662 states and 2148 transitions. [2021-11-23 02:06:16,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:06:16,370 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 [2021-11-23 02:06:16,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:06:16,386 INFO L225 Difference]: With dead ends: 1662 [2021-11-23 02:06:16,386 INFO L226 Difference]: Without dead ends: 1660 [2021-11-23 02:06:16,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:06:16,389 INFO L933 BasicCegarLoop]: 877 mSDtfsCounter, 1013 mSDsluCounter, 1036 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1015 SdHoareTripleChecker+Valid, 1754 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:06:16,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1015 Valid, 1754 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-23 02:06:16,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1660 states. [2021-11-23 02:06:16,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1660 to 1660. [2021-11-23 02:06:16,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1660 states, 960 states have (on average 1.2104166666666667) internal successors, (1162), 1022 states have internal predecessors, (1162), 485 states have call successors, (485), 194 states have call predecessors, (485), 193 states have return successors, (498), 474 states have call predecessors, (498), 483 states have call successors, (498) [2021-11-23 02:06:16,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1660 states to 1660 states and 2145 transitions. [2021-11-23 02:06:16,573 INFO L78 Accepts]: Start accepts. Automaton has 1660 states and 2145 transitions. Word has length 90 [2021-11-23 02:06:16,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:06:16,574 INFO L470 AbstractCegarLoop]: Abstraction has 1660 states and 2145 transitions. [2021-11-23 02:06:16,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-23 02:06:16,575 INFO L276 IsEmpty]: Start isEmpty. Operand 1660 states and 2145 transitions. [2021-11-23 02:06:16,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-23 02:06:16,577 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:06:16,578 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:06:16,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-23 02:06:16,578 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-23 02:06:16,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:06:16,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1227200249, now seen corresponding path program 1 times [2021-11-23 02:06:16,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:06:16,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143621552] [2021-11-23 02:06:16,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:06:16,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:06:16,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:06:16,861 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2021-11-23 02:06:16,861 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:06:16,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143621552] [2021-11-23 02:06:16,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143621552] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:06:16,862 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:06:16,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-23 02:06:16,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031431532] [2021-11-23 02:06:16,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:06:16,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 02:06:16,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:06:16,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 02:06:16,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-23 02:06:16,865 INFO L87 Difference]: Start difference. First operand 1660 states and 2145 transitions. Second operand has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-23 02:06:21,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:06:21,431 INFO L93 Difference]: Finished difference Result 2071 states and 2824 transitions. [2021-11-23 02:06:21,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 02:06:21,432 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 114 [2021-11-23 02:06:21,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:06:21,459 INFO L225 Difference]: With dead ends: 2071 [2021-11-23 02:06:21,459 INFO L226 Difference]: Without dead ends: 2069 [2021-11-23 02:06:21,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-11-23 02:06:21,462 INFO L933 BasicCegarLoop]: 1001 mSDtfsCounter, 1031 mSDsluCounter, 3477 mSDsCounter, 0 mSdLazyCounter, 2530 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1173 SdHoareTripleChecker+Valid, 3779 SdHoareTripleChecker+Invalid, 2572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:06:21,463 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1173 Valid, 3779 Invalid, 2572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 2530 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2021-11-23 02:06:21,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2069 states. [2021-11-23 02:06:21,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2069 to 1658. [2021-11-23 02:06:21,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1658 states, 959 states have (on average 1.2085505735140771) internal successors, (1159), 1020 states have internal predecessors, (1159), 485 states have call successors, (485), 194 states have call predecessors, (485), 193 states have return successors, (498), 474 states have call predecessors, (498), 483 states have call successors, (498) [2021-11-23 02:06:21,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1658 states to 1658 states and 2142 transitions. [2021-11-23 02:06:21,710 INFO L78 Accepts]: Start accepts. Automaton has 1658 states and 2142 transitions. Word has length 114 [2021-11-23 02:06:21,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:06:21,712 INFO L470 AbstractCegarLoop]: Abstraction has 1658 states and 2142 transitions. [2021-11-23 02:06:21,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-23 02:06:21,712 INFO L276 IsEmpty]: Start isEmpty. Operand 1658 states and 2142 transitions. [2021-11-23 02:06:21,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-23 02:06:21,715 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:06:21,715 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:06:21,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-23 02:06:21,716 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-23 02:06:21,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:06:21,717 INFO L85 PathProgramCache]: Analyzing trace with hash -766703649, now seen corresponding path program 1 times [2021-11-23 02:06:21,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:06:21,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749742438] [2021-11-23 02:06:21,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:06:21,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:06:21,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:06:21,832 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 02:06:21,832 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:06:21,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749742438] [2021-11-23 02:06:21,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749742438] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:06:21,833 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:06:21,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:06:21,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314312331] [2021-11-23 02:06:21,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:06:21,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:06:21,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:06:21,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:06:21,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:06:21,835 INFO L87 Difference]: Start difference. First operand 1658 states and 2142 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) [2021-11-23 02:06:23,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:06:23,310 INFO L93 Difference]: Finished difference Result 1658 states and 2142 transitions. [2021-11-23 02:06:23,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:06:23,311 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 [2021-11-23 02:06:23,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:06:23,326 INFO L225 Difference]: With dead ends: 1658 [2021-11-23 02:06:23,326 INFO L226 Difference]: Without dead ends: 1656 [2021-11-23 02:06:23,328 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:06:23,329 INFO L933 BasicCegarLoop]: 873 mSDtfsCounter, 1008 mSDsluCounter, 1032 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1010 SdHoareTripleChecker+Valid, 1746 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:06:23,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1010 Valid, 1746 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-23 02:06:23,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1656 states. [2021-11-23 02:06:23,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1656 to 1656. [2021-11-23 02:06:23,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1656 states, 958 states have (on average 1.2066805845511481) internal successors, (1156), 1018 states have internal predecessors, (1156), 485 states have call successors, (485), 194 states have call predecessors, (485), 193 states have return successors, (498), 474 states have call predecessors, (498), 483 states have call successors, (498) [2021-11-23 02:06:23,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1656 states to 1656 states and 2139 transitions. [2021-11-23 02:06:23,525 INFO L78 Accepts]: Start accepts. Automaton has 1656 states and 2139 transitions. Word has length 95 [2021-11-23 02:06:23,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:06:23,526 INFO L470 AbstractCegarLoop]: Abstraction has 1656 states and 2139 transitions. [2021-11-23 02:06:23,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-23 02:06:23,526 INFO L276 IsEmpty]: Start isEmpty. Operand 1656 states and 2139 transitions. [2021-11-23 02:06:23,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-23 02:06:23,529 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:06:23,530 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:06:23,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-23 02:06:23,530 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-23 02:06:23,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:06:23,531 INFO L85 PathProgramCache]: Analyzing trace with hash -686814740, now seen corresponding path program 1 times [2021-11-23 02:06:23,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:06:23,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551489809] [2021-11-23 02:06:23,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:06:23,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:06:23,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:06:23,751 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2021-11-23 02:06:23,751 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:06:23,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551489809] [2021-11-23 02:06:23,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551489809] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:06:23,752 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:06:23,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:06:23,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181558680] [2021-11-23 02:06:23,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:06:23,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:06:23,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:06:23,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:06:23,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:06:23,755 INFO L87 Difference]: Start difference. First operand 1656 states and 2139 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-23 02:06:24,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:06:24,684 INFO L93 Difference]: Finished difference Result 3284 states and 4252 transitions. [2021-11-23 02:06:24,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:06:24,685 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 117 [2021-11-23 02:06:24,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:06:24,702 INFO L225 Difference]: With dead ends: 3284 [2021-11-23 02:06:24,703 INFO L226 Difference]: Without dead ends: 1650 [2021-11-23 02:06:24,711 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:06:24,712 INFO L933 BasicCegarLoop]: 869 mSDtfsCounter, 994 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 994 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-23 02:06:24,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [994 Valid, 869 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-23 02:06:24,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1650 states. [2021-11-23 02:06:24,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1650 to 1650. [2021-11-23 02:06:24,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1650 states, 953 states have (on average 1.2035676810073452) internal successors, (1147), 1012 states have internal predecessors, (1147), 485 states have call successors, (485), 194 states have call predecessors, (485), 193 states have return successors, (498), 474 states have call predecessors, (498), 483 states have call successors, (498) [2021-11-23 02:06:24,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1650 states to 1650 states and 2130 transitions. [2021-11-23 02:06:24,909 INFO L78 Accepts]: Start accepts. Automaton has 1650 states and 2130 transitions. Word has length 117 [2021-11-23 02:06:24,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:06:24,910 INFO L470 AbstractCegarLoop]: Abstraction has 1650 states and 2130 transitions. [2021-11-23 02:06:24,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-23 02:06:24,910 INFO L276 IsEmpty]: Start isEmpty. Operand 1650 states and 2130 transitions. [2021-11-23 02:06:24,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-23 02:06:24,914 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:06:24,914 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:06:24,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-23 02:06:24,914 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-23 02:06:24,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:06:24,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1359350283, now seen corresponding path program 1 times [2021-11-23 02:06:24,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:06:24,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27481473] [2021-11-23 02:06:24,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:06:24,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:06:24,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:06:25,066 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 02:06:25,066 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:06:25,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27481473] [2021-11-23 02:06:25,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27481473] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:06:25,070 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:06:25,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:06:25,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480791544] [2021-11-23 02:06:25,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:06:25,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:06:25,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:06:25,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:06:25,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:06:25,073 INFO L87 Difference]: Start difference. First operand 1650 states and 2130 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) [2021-11-23 02:06:26,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:06:26,580 INFO L93 Difference]: Finished difference Result 1650 states and 2130 transitions. [2021-11-23 02:06:26,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:06:26,581 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 [2021-11-23 02:06:26,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:06:26,597 INFO L225 Difference]: With dead ends: 1650 [2021-11-23 02:06:26,597 INFO L226 Difference]: Without dead ends: 1648 [2021-11-23 02:06:26,599 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:06:26,600 INFO L933 BasicCegarLoop]: 866 mSDtfsCounter, 1000 mSDsluCounter, 1025 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1002 SdHoareTripleChecker+Valid, 1732 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:06:26,601 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1002 Valid, 1732 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-23 02:06:26,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1648 states. [2021-11-23 02:06:26,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1648 to 1648. [2021-11-23 02:06:26,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1648 states, 952 states have (on average 1.2016806722689075) internal successors, (1144), 1010 states have internal predecessors, (1144), 485 states have call successors, (485), 194 states have call predecessors, (485), 193 states have return successors, (498), 474 states have call predecessors, (498), 483 states have call successors, (498) [2021-11-23 02:06:26,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1648 states to 1648 states and 2127 transitions. [2021-11-23 02:06:26,824 INFO L78 Accepts]: Start accepts. Automaton has 1648 states and 2127 transitions. Word has length 100 [2021-11-23 02:06:26,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:06:26,825 INFO L470 AbstractCegarLoop]: Abstraction has 1648 states and 2127 transitions. [2021-11-23 02:06:26,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-23 02:06:26,825 INFO L276 IsEmpty]: Start isEmpty. Operand 1648 states and 2127 transitions. [2021-11-23 02:06:26,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-23 02:06:26,829 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:06:26,829 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:06:26,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-23 02:06:26,830 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-23 02:06:26,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:06:26,831 INFO L85 PathProgramCache]: Analyzing trace with hash -813067699, now seen corresponding path program 1 times [2021-11-23 02:06:26,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:06:26,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758177070] [2021-11-23 02:06:26,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:06:26,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:06:26,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:06:26,964 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 02:06:26,965 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:06:26,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758177070] [2021-11-23 02:06:26,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758177070] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:06:26,965 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:06:26,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:06:26,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646961337] [2021-11-23 02:06:26,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:06:26,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:06:26,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:06:26,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:06:26,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:06:26,968 INFO L87 Difference]: Start difference. First operand 1648 states and 2127 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) [2021-11-23 02:06:28,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:06:28,454 INFO L93 Difference]: Finished difference Result 1648 states and 2127 transitions. [2021-11-23 02:06:28,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:06:28,455 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 [2021-11-23 02:06:28,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:06:28,483 INFO L225 Difference]: With dead ends: 1648 [2021-11-23 02:06:28,489 INFO L226 Difference]: Without dead ends: 1646 [2021-11-23 02:06:28,491 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:06:28,492 INFO L933 BasicCegarLoop]: 864 mSDtfsCounter, 997 mSDsluCounter, 1023 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 999 SdHoareTripleChecker+Valid, 1728 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:06:28,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [999 Valid, 1728 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-23 02:06:28,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2021-11-23 02:06:28,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 1646. [2021-11-23 02:06:28,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1646 states, 951 states have (on average 1.199789695057834) internal successors, (1141), 1008 states have internal predecessors, (1141), 485 states have call successors, (485), 194 states have call predecessors, (485), 193 states have return successors, (498), 474 states have call predecessors, (498), 483 states have call successors, (498) [2021-11-23 02:06:28,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1646 states to 1646 states and 2124 transitions. [2021-11-23 02:06:28,732 INFO L78 Accepts]: Start accepts. Automaton has 1646 states and 2124 transitions. Word has length 105 [2021-11-23 02:06:28,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:06:28,733 INFO L470 AbstractCegarLoop]: Abstraction has 1646 states and 2124 transitions. [2021-11-23 02:06:28,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-23 02:06:28,734 INFO L276 IsEmpty]: Start isEmpty. Operand 1646 states and 2124 transitions. [2021-11-23 02:06:28,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-23 02:06:28,739 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:06:28,739 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:06:28,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-23 02:06:28,741 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_block_request__double_getErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-23 02:06:28,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:06:28,741 INFO L85 PathProgramCache]: Analyzing trace with hash 975979, now seen corresponding path program 1 times [2021-11-23 02:06:28,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:06:28,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865083962] [2021-11-23 02:06:28,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:06:28,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:06:28,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:06:28,906 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2021-11-23 02:06:28,906 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:06:28,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865083962] [2021-11-23 02:06:28,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865083962] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:06:28,907 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:06:28,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 02:06:28,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032175947] [2021-11-23 02:06:28,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:06:28,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 02:06:28,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:06:28,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 02:06:28,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:06:28,910 INFO L87 Difference]: Start difference. First operand 1646 states and 2124 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-23 02:06:30,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:06:30,667 INFO L93 Difference]: Finished difference Result 1667 states and 2137 transitions. [2021-11-23 02:06:30,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 02:06:30,668 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 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 127 [2021-11-23 02:06:30,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:06:30,679 INFO L225 Difference]: With dead ends: 1667 [2021-11-23 02:06:30,680 INFO L226 Difference]: Without dead ends: 1665 [2021-11-23 02:06:30,681 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-23 02:06:30,682 INFO L933 BasicCegarLoop]: 930 mSDtfsCounter, 977 mSDsluCounter, 2464 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 3025 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-23 02:06:30,683 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [978 Valid, 3025 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-23 02:06:30,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1665 states. [2021-11-23 02:06:30,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1665 to 1646. [2021-11-23 02:06:30,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1646 states, 951 states have (on average 1.1976866456361726) internal successors, (1139), 1008 states have internal predecessors, (1139), 485 states have call successors, (485), 194 states have call predecessors, (485), 193 states have return successors, (498), 474 states have call predecessors, (498), 483 states have call successors, (498) [2021-11-23 02:06:30,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1646 states to 1646 states and 2122 transitions. [2021-11-23 02:06:30,890 INFO L78 Accepts]: Start accepts. Automaton has 1646 states and 2122 transitions. Word has length 127 [2021-11-23 02:06:30,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:06:30,891 INFO L470 AbstractCegarLoop]: Abstraction has 1646 states and 2122 transitions. [2021-11-23 02:06:30,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-23 02:06:30,892 INFO L276 IsEmpty]: Start isEmpty. Operand 1646 states and 2122 transitions. [2021-11-23 02:06:30,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-11-23 02:06:30,896 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:06:30,896 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:06:30,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-23 02:06:30,897 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-23 02:06:30,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:06:30,897 INFO L85 PathProgramCache]: Analyzing trace with hash 2128218365, now seen corresponding path program 1 times [2021-11-23 02:06:30,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:06:30,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077899172] [2021-11-23 02:06:30,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:06:30,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:06:30,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:06:31,140 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2021-11-23 02:06:31,140 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:06:31,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077899172] [2021-11-23 02:06:31,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077899172] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:06:31,141 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:06:31,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 02:06:31,142 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547039965] [2021-11-23 02:06:31,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:06:31,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 02:06:31,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:06:31,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 02:06:31,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:06:31,145 INFO L87 Difference]: Start difference. First operand 1646 states and 2122 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, (19), 3 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-23 02:06:32,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:06:32,874 INFO L93 Difference]: Finished difference Result 1690 states and 2164 transitions. [2021-11-23 02:06:32,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:06:32,875 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, (19), 3 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 131 [2021-11-23 02:06:32,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:06:32,884 INFO L225 Difference]: With dead ends: 1690 [2021-11-23 02:06:32,884 INFO L226 Difference]: Without dead ends: 1688 [2021-11-23 02:06:32,886 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-23 02:06:32,887 INFO L933 BasicCegarLoop]: 865 mSDtfsCounter, 947 mSDsluCounter, 2106 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 948 SdHoareTripleChecker+Valid, 2638 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-23 02:06:32,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [948 Valid, 2638 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-23 02:06:32,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1688 states. [2021-11-23 02:06:33,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1688 to 1688. [2021-11-23 02:06:33,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1688 states, 974 states have (on average 1.1930184804928132) internal successors, (1162), 1030 states have internal predecessors, (1162), 493 states have call successors, (493), 206 states have call predecessors, (493), 205 states have return successors, (506), 482 states have call predecessors, (506), 491 states have call successors, (506) [2021-11-23 02:06:33,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1688 states to 1688 states and 2161 transitions. [2021-11-23 02:06:33,102 INFO L78 Accepts]: Start accepts. Automaton has 1688 states and 2161 transitions. Word has length 131 [2021-11-23 02:06:33,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:06:33,103 INFO L470 AbstractCegarLoop]: Abstraction has 1688 states and 2161 transitions. [2021-11-23 02:06:33,103 INFO L471 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, (19), 3 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-23 02:06:33,104 INFO L276 IsEmpty]: Start isEmpty. Operand 1688 states and 2161 transitions. [2021-11-23 02:06:33,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-11-23 02:06:33,108 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:06:33,108 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:06:33,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-23 02:06:33,108 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_block_genhd_del_gendiskErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-23 02:06:33,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:06:33,109 INFO L85 PathProgramCache]: Analyzing trace with hash -574070957, now seen corresponding path program 1 times [2021-11-23 02:06:33,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:06:33,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115569332] [2021-11-23 02:06:33,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:06:33,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:06:33,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:06:33,689 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 4 proven. 36 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2021-11-23 02:06:33,689 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:06:33,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115569332] [2021-11-23 02:06:33,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115569332] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:06:33,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [664202079] [2021-11-23 02:06:33,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:06:33,690 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:06:33,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:06:33,695 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:06:33,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 02:06:34,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:06:34,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 1431 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-23 02:06:34,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:06:34,847 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2021-11-23 02:06:34,848 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:06:34,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [664202079] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:06:34,848 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 02:06:34,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [9] total 15 [2021-11-23 02:06:34,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780104690] [2021-11-23 02:06:34,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:06:34,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-23 02:06:34,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:06:34,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-23 02:06:34,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2021-11-23 02:06:34,850 INFO L87 Difference]: Start difference. First operand 1688 states and 2161 transitions. Second operand has 10 states, 7 states have (on average 6.285714285714286) internal successors, (44), 9 states have internal predecessors, (44), 5 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2021-11-23 02:06:41,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:06:41,980 INFO L93 Difference]: Finished difference Result 3854 states and 5095 transitions. [2021-11-23 02:06:41,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 02:06:41,981 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 6.285714285714286) internal successors, (44), 9 states have internal predecessors, (44), 5 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) Word has length 132 [2021-11-23 02:06:41,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:06:41,995 INFO L225 Difference]: With dead ends: 3854 [2021-11-23 02:06:41,996 INFO L226 Difference]: Without dead ends: 2186 [2021-11-23 02:06:42,006 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2021-11-23 02:06:42,007 INFO L933 BasicCegarLoop]: 1237 mSDtfsCounter, 438 mSDsluCounter, 10686 mSDsCounter, 0 mSdLazyCounter, 1990 mSolverCounterSat, 338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 10427 SdHoareTripleChecker+Invalid, 2328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 1990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2021-11-23 02:06:42,008 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [438 Valid, 10427 Invalid, 2328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [338 Valid, 1990 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2021-11-23 02:06:42,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2186 states. [2021-11-23 02:06:42,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2186 to 1700. [2021-11-23 02:06:42,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1700 states, 982 states have (on average 1.1914460285132382) internal successors, (1170), 1038 states have internal predecessors, (1170), 497 states have call successors, (497), 206 states have call predecessors, (497), 205 states have return successors, (510), 486 states have call predecessors, (510), 495 states have call successors, (510) [2021-11-23 02:06:42,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1700 states to 1700 states and 2177 transitions. [2021-11-23 02:06:42,275 INFO L78 Accepts]: Start accepts. Automaton has 1700 states and 2177 transitions. Word has length 132 [2021-11-23 02:06:42,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:06:42,276 INFO L470 AbstractCegarLoop]: Abstraction has 1700 states and 2177 transitions. [2021-11-23 02:06:42,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 6.285714285714286) internal successors, (44), 9 states have internal predecessors, (44), 5 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2021-11-23 02:06:42,277 INFO L276 IsEmpty]: Start isEmpty. Operand 1700 states and 2177 transitions. [2021-11-23 02:06:42,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-23 02:06:42,280 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:06:42,281 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:06:42,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 02:06:42,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:06:42,496 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-23 02:06:42,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:06:42,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1951411581, now seen corresponding path program 1 times [2021-11-23 02:06:42,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:06:42,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042925277] [2021-11-23 02:06:42,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:06:42,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:06:42,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:06:42,689 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 02:06:42,690 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:06:42,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042925277] [2021-11-23 02:06:42,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042925277] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:06:42,690 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:06:42,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:06:42,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667964091] [2021-11-23 02:06:42,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:06:42,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:06:42,694 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:06:42,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:06:42,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:06:42,695 INFO L87 Difference]: Start difference. First operand 1700 states and 2177 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) [2021-11-23 02:06:44,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:06:44,601 INFO L93 Difference]: Finished difference Result 1700 states and 2177 transitions. [2021-11-23 02:06:44,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:06:44,602 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 [2021-11-23 02:06:44,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:06:44,611 INFO L225 Difference]: With dead ends: 1700 [2021-11-23 02:06:44,612 INFO L226 Difference]: Without dead ends: 1698 [2021-11-23 02:06:44,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:06:44,614 INFO L933 BasicCegarLoop]: 860 mSDtfsCounter, 992 mSDsluCounter, 1019 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 994 SdHoareTripleChecker+Valid, 1720 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-23 02:06:44,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [994 Valid, 1720 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-23 02:06:44,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1698 states. [2021-11-23 02:06:44,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1698 to 1698. [2021-11-23 02:06:44,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1698 states, 981 states have (on average 1.1896024464831805) internal successors, (1167), 1036 states have internal predecessors, (1167), 497 states have call successors, (497), 206 states have call predecessors, (497), 205 states have return successors, (510), 486 states have call predecessors, (510), 495 states have call successors, (510) [2021-11-23 02:06:44,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1698 states to 1698 states and 2174 transitions. [2021-11-23 02:06:44,878 INFO L78 Accepts]: Start accepts. Automaton has 1698 states and 2174 transitions. Word has length 110 [2021-11-23 02:06:44,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:06:44,879 INFO L470 AbstractCegarLoop]: Abstraction has 1698 states and 2174 transitions. [2021-11-23 02:06:44,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-23 02:06:44,879 INFO L276 IsEmpty]: Start isEmpty. Operand 1698 states and 2174 transitions. [2021-11-23 02:06:44,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-23 02:06:44,884 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:06:44,884 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:06:44,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-23 02:06:44,885 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_block_genhd_del_gendiskErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-23 02:06:44,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:06:44,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1606238707, now seen corresponding path program 1 times [2021-11-23 02:06:44,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:06:44,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193792393] [2021-11-23 02:06:44,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:06:44,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:06:45,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:06:45,343 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 4 proven. 36 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2021-11-23 02:06:45,344 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:06:45,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193792393] [2021-11-23 02:06:45,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193792393] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:06:45,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [816619979] [2021-11-23 02:06:45,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:06:45,344 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:06:45,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:06:45,346 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:06:45,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 02:06:46,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:06:46,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 1467 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-23 02:06:46,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:06:46,577 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2021-11-23 02:06:46,578 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:06:46,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [816619979] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:06:46,578 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 02:06:46,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [9] total 16 [2021-11-23 02:06:46,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103713289] [2021-11-23 02:06:46,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:06:46,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-23 02:06:46,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:06:46,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-23 02:06:46,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2021-11-23 02:06:46,581 INFO L87 Difference]: Start difference. First operand 1698 states and 2174 transitions. Second operand has 11 states, 8 states have (on average 5.75) internal successors, (46), 10 states have internal predecessors, (46), 5 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2021-11-23 02:06:55,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:06:55,034 INFO L93 Difference]: Finished difference Result 4225 states and 5710 transitions. [2021-11-23 02:06:55,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-23 02:06:55,037 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 5.75) internal successors, (46), 10 states have internal predecessors, (46), 5 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) Word has length 134 [2021-11-23 02:06:55,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:06:55,051 INFO L225 Difference]: With dead ends: 4225 [2021-11-23 02:06:55,051 INFO L226 Difference]: Without dead ends: 2547 [2021-11-23 02:06:55,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=89, Invalid=511, Unknown=0, NotChecked=0, Total=600 [2021-11-23 02:06:55,061 INFO L933 BasicCegarLoop]: 1390 mSDtfsCounter, 601 mSDsluCounter, 13069 mSDsCounter, 0 mSdLazyCounter, 2385 mSolverCounterSat, 694 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 607 SdHoareTripleChecker+Valid, 12729 SdHoareTripleChecker+Invalid, 3079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 694 IncrementalHoareTripleChecker+Valid, 2385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2021-11-23 02:06:55,062 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [607 Valid, 12729 Invalid, 3079 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [694 Valid, 2385 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2021-11-23 02:06:55,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2547 states. [2021-11-23 02:06:55,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2547 to 1717. [2021-11-23 02:06:55,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1717 states, 990 states have (on average 1.187878787878788) internal successors, (1176), 1044 states have internal predecessors, (1176), 507 states have call successors, (507), 206 states have call predecessors, (507), 205 states have return successors, (523), 497 states have call predecessors, (523), 505 states have call successors, (523) [2021-11-23 02:06:55,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1717 states to 1717 states and 2206 transitions. [2021-11-23 02:06:55,353 INFO L78 Accepts]: Start accepts. Automaton has 1717 states and 2206 transitions. Word has length 134 [2021-11-23 02:06:55,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:06:55,354 INFO L470 AbstractCegarLoop]: Abstraction has 1717 states and 2206 transitions. [2021-11-23 02:06:55,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 5.75) internal successors, (46), 10 states have internal predecessors, (46), 5 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2021-11-23 02:06:55,354 INFO L276 IsEmpty]: Start isEmpty. Operand 1717 states and 2206 transitions. [2021-11-23 02:06:55,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-23 02:06:55,358 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:06:55,358 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:06:55,408 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 02:06:55,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-11-23 02:06:55,582 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-23 02:06:55,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:06:55,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1440836416, now seen corresponding path program 1 times [2021-11-23 02:06:55,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:06:55,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966625903] [2021-11-23 02:06:55,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:06:55,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:06:55,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:06:55,720 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 02:06:55,720 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:06:55,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966625903] [2021-11-23 02:06:55,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966625903] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:06:55,721 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:06:55,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:06:55,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848792781] [2021-11-23 02:06:55,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:06:55,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:06:55,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:06:55,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:06:55,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:06:55,723 INFO L87 Difference]: Start difference. First operand 1717 states and 2206 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) [2021-11-23 02:06:56,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:06:56,922 INFO L93 Difference]: Finished difference Result 1717 states and 2206 transitions. [2021-11-23 02:06:56,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:06:56,922 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 [2021-11-23 02:06:56,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:06:56,931 INFO L225 Difference]: With dead ends: 1717 [2021-11-23 02:06:56,931 INFO L226 Difference]: Without dead ends: 1715 [2021-11-23 02:06:56,933 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:06:56,934 INFO L933 BasicCegarLoop]: 858 mSDtfsCounter, 989 mSDsluCounter, 1017 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 1716 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:06:56,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [991 Valid, 1716 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-23 02:06:56,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1715 states. [2021-11-23 02:06:57,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1715 to 1715. [2021-11-23 02:06:57,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1715 states, 989 states have (on average 1.186046511627907) internal successors, (1173), 1042 states have internal predecessors, (1173), 507 states have call successors, (507), 206 states have call predecessors, (507), 205 states have return successors, (523), 497 states have call predecessors, (523), 505 states have call successors, (523) [2021-11-23 02:06:57,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1715 states to 1715 states and 2203 transitions. [2021-11-23 02:06:57,223 INFO L78 Accepts]: Start accepts. Automaton has 1715 states and 2203 transitions. Word has length 115 [2021-11-23 02:06:57,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:06:57,224 INFO L470 AbstractCegarLoop]: Abstraction has 1715 states and 2203 transitions. [2021-11-23 02:06:57,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-23 02:06:57,225 INFO L276 IsEmpty]: Start isEmpty. Operand 1715 states and 2203 transitions. [2021-11-23 02:06:57,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-23 02:06:57,228 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:06:57,229 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:06:57,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-23 02:06:57,229 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-23 02:06:57,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:06:57,230 INFO L85 PathProgramCache]: Analyzing trace with hash 2111674658, now seen corresponding path program 1 times [2021-11-23 02:06:57,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:06:57,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992934471] [2021-11-23 02:06:57,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:06:57,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:06:57,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:06:57,341 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 02:06:57,341 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:06:57,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992934471] [2021-11-23 02:06:57,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992934471] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:06:57,342 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:06:57,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:06:57,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549627315] [2021-11-23 02:06:57,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:06:57,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:06:57,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:06:57,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:06:57,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:06:57,345 INFO L87 Difference]: Start difference. First operand 1715 states and 2203 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) [2021-11-23 02:06:58,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:06:58,591 INFO L93 Difference]: Finished difference Result 1715 states and 2203 transitions. [2021-11-23 02:06:58,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:06:58,592 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 [2021-11-23 02:06:58,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:06:58,599 INFO L225 Difference]: With dead ends: 1715 [2021-11-23 02:06:58,600 INFO L226 Difference]: Without dead ends: 1713 [2021-11-23 02:06:58,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:06:58,602 INFO L933 BasicCegarLoop]: 856 mSDtfsCounter, 986 mSDsluCounter, 1015 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 988 SdHoareTripleChecker+Valid, 1712 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:06:58,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [988 Valid, 1712 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-23 02:06:58,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1713 states. [2021-11-23 02:06:58,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1713 to 1713. [2021-11-23 02:06:58,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1713 states, 988 states have (on average 1.1842105263157894) internal successors, (1170), 1040 states have internal predecessors, (1170), 507 states have call successors, (507), 206 states have call predecessors, (507), 205 states have return successors, (523), 497 states have call predecessors, (523), 505 states have call successors, (523) [2021-11-23 02:06:58,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1713 states to 1713 states and 2200 transitions. [2021-11-23 02:06:58,850 INFO L78 Accepts]: Start accepts. Automaton has 1713 states and 2200 transitions. Word has length 120 [2021-11-23 02:06:58,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:06:58,851 INFO L470 AbstractCegarLoop]: Abstraction has 1713 states and 2200 transitions. [2021-11-23 02:06:58,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-23 02:06:58,852 INFO L276 IsEmpty]: Start isEmpty. Operand 1713 states and 2200 transitions. [2021-11-23 02:06:58,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-23 02:06:58,856 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:06:58,856 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:06:58,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-23 02:06:58,857 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-23 02:06:58,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:06:58,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1613809332, now seen corresponding path program 1 times [2021-11-23 02:06:58,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:06:58,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736640257] [2021-11-23 02:06:58,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:06:58,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:06:58,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:06:58,961 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 02:06:58,962 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:06:58,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736640257] [2021-11-23 02:06:58,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736640257] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:06:58,963 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:06:58,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:06:58,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288043826] [2021-11-23 02:06:58,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:06:58,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:06:58,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:06:58,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:06:58,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:06:58,965 INFO L87 Difference]: Start difference. First operand 1713 states and 2200 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) [2021-11-23 02:07:00,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:07:00,077 INFO L93 Difference]: Finished difference Result 1713 states and 2200 transitions. [2021-11-23 02:07:00,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:07:00,078 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 [2021-11-23 02:07:00,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:07:00,087 INFO L225 Difference]: With dead ends: 1713 [2021-11-23 02:07:00,087 INFO L226 Difference]: Without dead ends: 1711 [2021-11-23 02:07:00,089 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:07:00,090 INFO L933 BasicCegarLoop]: 854 mSDtfsCounter, 983 mSDsluCounter, 1013 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 985 SdHoareTripleChecker+Valid, 1708 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-23 02:07:00,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [985 Valid, 1708 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-23 02:07:00,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1711 states. [2021-11-23 02:07:00,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1711 to 1711. [2021-11-23 02:07:00,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1711 states, 987 states have (on average 1.182370820668693) internal successors, (1167), 1038 states have internal predecessors, (1167), 507 states have call successors, (507), 206 states have call predecessors, (507), 205 states have return successors, (523), 497 states have call predecessors, (523), 505 states have call successors, (523) [2021-11-23 02:07:00,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1711 states to 1711 states and 2197 transitions. [2021-11-23 02:07:00,413 INFO L78 Accepts]: Start accepts. Automaton has 1711 states and 2197 transitions. Word has length 125 [2021-11-23 02:07:00,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:07:00,414 INFO L470 AbstractCegarLoop]: Abstraction has 1711 states and 2197 transitions. [2021-11-23 02:07:00,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-23 02:07:00,414 INFO L276 IsEmpty]: Start isEmpty. Operand 1711 states and 2197 transitions. [2021-11-23 02:07:00,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-23 02:07:00,419 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:07:00,419 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:07:00,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-23 02:07:00,420 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-23 02:07:00,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:07:00,420 INFO L85 PathProgramCache]: Analyzing trace with hash 157000332, now seen corresponding path program 1 times [2021-11-23 02:07:00,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:07:00,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850020622] [2021-11-23 02:07:00,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:07:00,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:07:00,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:07:00,533 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 02:07:00,533 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:07:00,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850020622] [2021-11-23 02:07:00,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850020622] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:07:00,534 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:07:00,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:07:00,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392573451] [2021-11-23 02:07:00,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:07:00,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:07:00,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:07:00,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:07:00,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:07:00,537 INFO L87 Difference]: Start difference. First operand 1711 states and 2197 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) [2021-11-23 02:07:01,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:07:01,763 INFO L93 Difference]: Finished difference Result 1711 states and 2197 transitions. [2021-11-23 02:07:01,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:07:01,764 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 [2021-11-23 02:07:01,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:07:01,775 INFO L225 Difference]: With dead ends: 1711 [2021-11-23 02:07:01,775 INFO L226 Difference]: Without dead ends: 1709 [2021-11-23 02:07:01,777 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:07:01,779 INFO L933 BasicCegarLoop]: 852 mSDtfsCounter, 980 mSDsluCounter, 1011 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 982 SdHoareTripleChecker+Valid, 1704 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:07:01,782 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [982 Valid, 1704 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-23 02:07:01,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1709 states. [2021-11-23 02:07:02,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1709 to 1709. [2021-11-23 02:07:02,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1709 states, 986 states have (on average 1.18052738336714) internal successors, (1164), 1036 states have internal predecessors, (1164), 507 states have call successors, (507), 206 states have call predecessors, (507), 205 states have return successors, (523), 497 states have call predecessors, (523), 505 states have call successors, (523) [2021-11-23 02:07:02,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1709 states to 1709 states and 2194 transitions. [2021-11-23 02:07:02,075 INFO L78 Accepts]: Start accepts. Automaton has 1709 states and 2194 transitions. Word has length 130 [2021-11-23 02:07:02,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:07:02,076 INFO L470 AbstractCegarLoop]: Abstraction has 1709 states and 2194 transitions. [2021-11-23 02:07:02,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-23 02:07:02,077 INFO L276 IsEmpty]: Start isEmpty. Operand 1709 states and 2194 transitions. [2021-11-23 02:07:02,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-11-23 02:07:02,081 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:07:02,082 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 7, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-23 02:07:02,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-23 02:07:02,082 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-23 02:07:02,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:07:02,083 INFO L85 PathProgramCache]: Analyzing trace with hash 532088618, now seen corresponding path program 1 times [2021-11-23 02:07:02,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:07:02,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035224899] [2021-11-23 02:07:02,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:07:02,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:07:02,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:07:02,490 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2021-11-23 02:07:02,490 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:07:02,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035224899] [2021-11-23 02:07:02,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035224899] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:07:02,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970671129] [2021-11-23 02:07:02,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:07:02,491 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:07:02,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:07:02,494 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:07:02,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 02:07:03,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:07:03,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 1590 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-23 02:07:03,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:07:03,653 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2021-11-23 02:07:03,653 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:07:03,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970671129] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:07:03,653 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 02:07:03,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11] total 14 [2021-11-23 02:07:03,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915762219] [2021-11-23 02:07:03,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:07:03,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-23 02:07:03,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:07:03,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-23 02:07:03,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2021-11-23 02:07:03,656 INFO L87 Difference]: Start difference. First operand 1709 states and 2194 transitions. Second operand has 11 states, 8 states have (on average 6.75) internal successors, (54), 10 states have internal predecessors, (54), 6 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) [2021-11-23 02:07:08,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:07:08,172 INFO L93 Difference]: Finished difference Result 2245 states and 2833 transitions. [2021-11-23 02:07:08,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 02:07:08,173 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 6.75) internal successors, (54), 10 states have internal predecessors, (54), 6 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) Word has length 157 [2021-11-23 02:07:08,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:07:08,181 INFO L225 Difference]: With dead ends: 2245 [2021-11-23 02:07:08,182 INFO L226 Difference]: Without dead ends: 1742 [2021-11-23 02:07:08,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2021-11-23 02:07:08,186 INFO L933 BasicCegarLoop]: 858 mSDtfsCounter, 21 mSDsluCounter, 9002 mSDsCounter, 0 mSdLazyCounter, 1838 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 8455 SdHoareTripleChecker+Invalid, 1934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:07:08,186 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 8455 Invalid, 1934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1838 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2021-11-23 02:07:08,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1742 states. [2021-11-23 02:07:08,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1742 to 1718. [2021-11-23 02:07:08,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1718 states, 991 states have (on average 1.1796165489404642) internal successors, (1169), 1041 states have internal predecessors, (1169), 511 states have call successors, (511), 206 states have call predecessors, (511), 205 states have return successors, (527), 501 states have call predecessors, (527), 509 states have call successors, (527) [2021-11-23 02:07:08,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1718 states to 1718 states and 2207 transitions. [2021-11-23 02:07:08,469 INFO L78 Accepts]: Start accepts. Automaton has 1718 states and 2207 transitions. Word has length 157 [2021-11-23 02:07:08,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:07:08,470 INFO L470 AbstractCegarLoop]: Abstraction has 1718 states and 2207 transitions. [2021-11-23 02:07:08,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 6.75) internal successors, (54), 10 states have internal predecessors, (54), 6 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) [2021-11-23 02:07:08,470 INFO L276 IsEmpty]: Start isEmpty. Operand 1718 states and 2207 transitions. [2021-11-23 02:07:08,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-23 02:07:08,475 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:07:08,475 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:07:08,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 02:07:08,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:07:08,702 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-23 02:07:08,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:07:08,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1929643024, now seen corresponding path program 1 times [2021-11-23 02:07:08,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:07:08,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970147257] [2021-11-23 02:07:08,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:07:08,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:07:08,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:07:08,818 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 02:07:08,818 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:07:08,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970147257] [2021-11-23 02:07:08,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970147257] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:07:08,819 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:07:08,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:07:08,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135434052] [2021-11-23 02:07:08,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:07:08,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:07:08,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:07:08,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:07:08,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:07:08,821 INFO L87 Difference]: Start difference. First operand 1718 states and 2207 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) [2021-11-23 02:07:10,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:07:10,060 INFO L93 Difference]: Finished difference Result 1718 states and 2207 transitions. [2021-11-23 02:07:10,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:07:10,061 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 [2021-11-23 02:07:10,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:07:10,068 INFO L225 Difference]: With dead ends: 1718 [2021-11-23 02:07:10,069 INFO L226 Difference]: Without dead ends: 1500 [2021-11-23 02:07:10,071 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:07:10,072 INFO L933 BasicCegarLoop]: 851 mSDtfsCounter, 977 mSDsluCounter, 1011 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 977 SdHoareTripleChecker+Valid, 1702 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:07:10,072 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [977 Valid, 1702 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-23 02:07:10,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1500 states. [2021-11-23 02:07:10,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1500 to 1500. [2021-11-23 02:07:10,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1500 states, 872 states have (on average 1.1972477064220184) internal successors, (1044), 918 states have internal predecessors, (1044), 449 states have call successors, (449), 171 states have call predecessors, (449), 169 states have return successors, (464), 441 states have call predecessors, (464), 446 states have call successors, (464) [2021-11-23 02:07:10,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1500 states to 1500 states and 1957 transitions. [2021-11-23 02:07:10,353 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 1957 transitions. Word has length 135 [2021-11-23 02:07:10,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:07:10,353 INFO L470 AbstractCegarLoop]: Abstraction has 1500 states and 1957 transitions. [2021-11-23 02:07:10,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-23 02:07:10,354 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 1957 transitions. [2021-11-23 02:07:10,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-11-23 02:07:10,357 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:07:10,358 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 7, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-23 02:07:10,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-23 02:07:10,359 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-23 02:07:10,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:07:10,360 INFO L85 PathProgramCache]: Analyzing trace with hash 748851737, now seen corresponding path program 1 times [2021-11-23 02:07:10,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:07:10,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656079014] [2021-11-23 02:07:10,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:07:10,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:07:10,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:07:10,697 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2021-11-23 02:07:10,698 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:07:10,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656079014] [2021-11-23 02:07:10,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656079014] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:07:10,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542005616] [2021-11-23 02:07:10,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:07:10,698 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:07:10,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:07:10,700 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:07:10,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 02:07:11,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:07:11,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 1621 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-23 02:07:11,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:07:11,707 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2021-11-23 02:07:11,707 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:07:11,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542005616] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:07:11,707 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 02:07:11,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [12] total 14 [2021-11-23 02:07:11,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456886968] [2021-11-23 02:07:11,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:07:11,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-23 02:07:11,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:07:11,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-23 02:07:11,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2021-11-23 02:07:11,710 INFO L87 Difference]: Start difference. First operand 1500 states and 1957 transitions. Second operand has 12 states, 9 states have (on average 6.333333333333333) internal successors, (57), 11 states have internal predecessors, (57), 7 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (27), 7 states have call predecessors, (27), 7 states have call successors, (27) [2021-11-23 02:07:16,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:07:16,906 INFO L93 Difference]: Finished difference Result 1825 states and 2363 transitions. [2021-11-23 02:07:16,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 02:07:16,907 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 6.333333333333333) internal successors, (57), 11 states have internal predecessors, (57), 7 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (27), 7 states have call predecessors, (27), 7 states have call successors, (27) Word has length 162 [2021-11-23 02:07:16,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:07:16,911 INFO L225 Difference]: With dead ends: 1825 [2021-11-23 02:07:16,911 INFO L226 Difference]: Without dead ends: 1500 [2021-11-23 02:07:16,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 161 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=314, Unknown=0, NotChecked=0, Total=380 [2021-11-23 02:07:16,916 INFO L933 BasicCegarLoop]: 734 mSDtfsCounter, 17 mSDsluCounter, 8688 mSDsCounter, 0 mSdLazyCounter, 1829 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 8021 SdHoareTripleChecker+Invalid, 1849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2021-11-23 02:07:16,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 8021 Invalid, 1849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1829 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2021-11-23 02:07:16,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1500 states. [2021-11-23 02:07:17,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1500 to 1500. [2021-11-23 02:07:17,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1500 states, 872 states have (on average 1.1961009174311927) internal successors, (1043), 917 states have internal predecessors, (1043), 449 states have call successors, (449), 171 states have call predecessors, (449), 169 states have return successors, (464), 441 states have call predecessors, (464), 446 states have call successors, (464) [2021-11-23 02:07:17,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1500 states to 1500 states and 1956 transitions. [2021-11-23 02:07:17,129 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 1956 transitions. Word has length 162 [2021-11-23 02:07:17,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:07:17,129 INFO L470 AbstractCegarLoop]: Abstraction has 1500 states and 1956 transitions. [2021-11-23 02:07:17,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 6.333333333333333) internal successors, (57), 11 states have internal predecessors, (57), 7 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (27), 7 states have call predecessors, (27), 7 states have call successors, (27) [2021-11-23 02:07:17,130 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 1956 transitions. [2021-11-23 02:07:17,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-11-23 02:07:17,134 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:07:17,134 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 8, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-23 02:07:17,183 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-11-23 02:07:17,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-11-23 02:07:17,350 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-23 02:07:17,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:07:17,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1165984503, now seen corresponding path program 1 times [2021-11-23 02:07:17,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:07:17,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482922803] [2021-11-23 02:07:17,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:07:17,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:07:17,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:07:17,665 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2021-11-23 02:07:17,665 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:07:17,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482922803] [2021-11-23 02:07:17,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482922803] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:07:17,665 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:07:17,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-23 02:07:17,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896865539] [2021-11-23 02:07:17,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:07:17,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-23 02:07:17,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:07:17,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-23 02:07:17,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-23 02:07:17,667 INFO L87 Difference]: Start difference. First operand 1500 states and 1956 transitions. Second operand has 9 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (28), 1 states have call predecessors, (28), 3 states have return successors, (28), 5 states have call predecessors, (28), 3 states have call successors, (28) [2021-11-23 02:07:22,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:07:22,279 INFO L93 Difference]: Finished difference Result 2298 states and 3134 transitions. [2021-11-23 02:07:22,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-23 02:07:22,280 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (28), 1 states have call predecessors, (28), 3 states have return successors, (28), 5 states have call predecessors, (28), 3 states have call successors, (28) Word has length 170 [2021-11-23 02:07:22,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:07:22,296 INFO L225 Difference]: With dead ends: 2298 [2021-11-23 02:07:22,297 INFO L226 Difference]: Without dead ends: 2296 [2021-11-23 02:07:22,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=372, Unknown=0, NotChecked=0, Total=462 [2021-11-23 02:07:22,304 INFO L933 BasicCegarLoop]: 971 mSDtfsCounter, 357 mSDsluCounter, 7788 mSDsCounter, 0 mSdLazyCounter, 1928 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 7520 SdHoareTripleChecker+Invalid, 2073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 1928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:07:22,305 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [386 Valid, 7520 Invalid, 2073 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 1928 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2021-11-23 02:07:22,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2296 states. [2021-11-23 02:07:22,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2296 to 1782. [2021-11-23 02:07:22,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1782 states, 1030 states have (on average 1.1932038834951457) internal successors, (1229), 1081 states have internal predecessors, (1229), 533 states have call successors, (533), 207 states have call predecessors, (533), 209 states have return successors, (563), 525 states have call predecessors, (563), 530 states have call successors, (563) [2021-11-23 02:07:22,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1782 states to 1782 states and 2325 transitions. [2021-11-23 02:07:22,630 INFO L78 Accepts]: Start accepts. Automaton has 1782 states and 2325 transitions. Word has length 170 [2021-11-23 02:07:22,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:07:22,631 INFO L470 AbstractCegarLoop]: Abstraction has 1782 states and 2325 transitions. [2021-11-23 02:07:22,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (28), 1 states have call predecessors, (28), 3 states have return successors, (28), 5 states have call predecessors, (28), 3 states have call successors, (28) [2021-11-23 02:07:22,631 INFO L276 IsEmpty]: Start isEmpty. Operand 1782 states and 2325 transitions. [2021-11-23 02:07:22,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-11-23 02:07:22,636 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:07:22,636 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 8, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:07:22,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-23 02:07:22,637 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-23 02:07:22,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:07:22,638 INFO L85 PathProgramCache]: Analyzing trace with hash 205768644, now seen corresponding path program 1 times [2021-11-23 02:07:22,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:07:22,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304551440] [2021-11-23 02:07:22,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:07:22,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:07:23,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:07:23,672 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 30 proven. 3 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2021-11-23 02:07:23,672 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:07:23,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304551440] [2021-11-23 02:07:23,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304551440] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:07:23,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [379624709] [2021-11-23 02:07:23,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:07:23,673 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:07:23,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:07:23,678 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:07:23,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 02:07:24,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:07:24,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 1728 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-23 02:07:24,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:07:24,704 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2021-11-23 02:07:24,704 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:07:24,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [379624709] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:07:24,705 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 02:07:24,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [16] total 19 [2021-11-23 02:07:24,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882255985] [2021-11-23 02:07:24,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:07:24,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 02:07:24,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:07:24,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 02:07:24,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2021-11-23 02:07:24,708 INFO L87 Difference]: Start difference. First operand 1782 states and 2325 transitions. Second operand has 7 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-23 02:07:27,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:07:27,915 INFO L93 Difference]: Finished difference Result 2715 states and 3660 transitions. [2021-11-23 02:07:27,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 02:07:27,925 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) Word has length 183 [2021-11-23 02:07:27,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:07:27,935 INFO L225 Difference]: With dead ends: 2715 [2021-11-23 02:07:27,936 INFO L226 Difference]: Without dead ends: 2243 [2021-11-23 02:07:27,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2021-11-23 02:07:27,940 INFO L933 BasicCegarLoop]: 811 mSDtfsCounter, 210 mSDsluCounter, 4670 mSDsCounter, 0 mSdLazyCounter, 1050 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 4743 SdHoareTripleChecker+Invalid, 1171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 1050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-11-23 02:07:27,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [252 Valid, 4743 Invalid, 1171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 1050 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-11-23 02:07:27,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2243 states. [2021-11-23 02:07:28,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2243 to 1784. [2021-11-23 02:07:28,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1032 states have (on average 1.192829457364341) internal successors, (1231), 1083 states have internal predecessors, (1231), 533 states have call successors, (533), 207 states have call predecessors, (533), 209 states have return successors, (563), 525 states have call predecessors, (563), 530 states have call successors, (563) [2021-11-23 02:07:28,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2327 transitions. [2021-11-23 02:07:28,238 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2327 transitions. Word has length 183 [2021-11-23 02:07:28,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:07:28,238 INFO L470 AbstractCegarLoop]: Abstraction has 1784 states and 2327 transitions. [2021-11-23 02:07:28,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-23 02:07:28,239 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2327 transitions. [2021-11-23 02:07:28,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2021-11-23 02:07:28,242 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:07:28,243 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 8, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:07:28,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-23 02:07:28,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2021-11-23 02:07:28,458 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-23 02:07:28,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:07:28,459 INFO L85 PathProgramCache]: Analyzing trace with hash -91656930, now seen corresponding path program 1 times [2021-11-23 02:07:28,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:07:28,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716559673] [2021-11-23 02:07:28,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:07:28,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:07:28,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:07:28,863 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2021-11-23 02:07:28,863 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:07:28,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716559673] [2021-11-23 02:07:28,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716559673] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:07:28,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1681882886] [2021-11-23 02:07:28,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:07:28,864 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:07:28,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:07:28,866 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:07:28,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-23 02:07:29,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:07:29,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 1753 conjuncts, 50 conjunts are in the unsatisfiable core [2021-11-23 02:07:29,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:07:30,202 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 138 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2021-11-23 02:07:30,202 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:07:30,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1681882886] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:07:30,203 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 02:07:30,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [12] total 12 [2021-11-23 02:07:30,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409218495] [2021-11-23 02:07:30,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:07:30,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-23 02:07:30,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:07:30,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-23 02:07:30,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-11-23 02:07:30,206 INFO L87 Difference]: Start difference. First operand 1784 states and 2327 transitions. Second operand has 12 states, 9 states have (on average 7.333333333333333) internal successors, (66), 11 states have internal predecessors, (66), 7 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (33), 7 states have call predecessors, (33), 7 states have call successors, (33) [2021-11-23 02:07:35,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:07:35,132 INFO L93 Difference]: Finished difference Result 2722 states and 3513 transitions. [2021-11-23 02:07:35,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-23 02:07:35,133 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 7.333333333333333) internal successors, (66), 11 states have internal predecessors, (66), 7 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (33), 7 states have call predecessors, (33), 7 states have call successors, (33) Word has length 190 [2021-11-23 02:07:35,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:07:35,143 INFO L225 Difference]: With dead ends: 2722 [2021-11-23 02:07:35,143 INFO L226 Difference]: Without dead ends: 1788 [2021-11-23 02:07:35,148 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 189 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2021-11-23 02:07:35,149 INFO L933 BasicCegarLoop]: 738 mSDtfsCounter, 28 mSDsluCounter, 8709 mSDsCounter, 0 mSdLazyCounter, 1850 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 8046 SdHoareTripleChecker+Invalid, 1882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2021-11-23 02:07:35,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 8046 Invalid, 1882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1850 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2021-11-23 02:07:35,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1788 states. [2021-11-23 02:07:35,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1788 to 1782. [2021-11-23 02:07:35,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1782 states, 1031 states have (on average 1.1910766246362754) internal successors, (1228), 1082 states have internal predecessors, (1228), 534 states have call successors, (534), 205 states have call predecessors, (534), 207 states have return successors, (564), 526 states have call predecessors, (564), 531 states have call successors, (564) [2021-11-23 02:07:35,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1782 states to 1782 states and 2326 transitions. [2021-11-23 02:07:35,501 INFO L78 Accepts]: Start accepts. Automaton has 1782 states and 2326 transitions. Word has length 190 [2021-11-23 02:07:35,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:07:35,502 INFO L470 AbstractCegarLoop]: Abstraction has 1782 states and 2326 transitions. [2021-11-23 02:07:35,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 7.333333333333333) internal successors, (66), 11 states have internal predecessors, (66), 7 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (33), 7 states have call predecessors, (33), 7 states have call successors, (33) [2021-11-23 02:07:35,502 INFO L276 IsEmpty]: Start isEmpty. Operand 1782 states and 2326 transitions. [2021-11-23 02:07:35,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2021-11-23 02:07:35,505 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:07:35,505 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-11-23 02:07:35,553 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-23 02:07:35,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:07:35,734 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-23 02:07:35,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:07:35,735 INFO L85 PathProgramCache]: Analyzing trace with hash -248238889, now seen corresponding path program 1 times [2021-11-23 02:07:35,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:07:35,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190542949] [2021-11-23 02:07:35,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:07:35,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:07:35,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:07:35,941 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2021-11-23 02:07:35,941 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:07:35,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190542949] [2021-11-23 02:07:35,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190542949] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:07:35,942 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:07:35,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:07:35,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376236101] [2021-11-23 02:07:35,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:07:35,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:07:35,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:07:35,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:07:35,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:07:35,944 INFO L87 Difference]: Start difference. First operand 1782 states and 2326 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-23 02:07:38,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:07:38,555 INFO L93 Difference]: Finished difference Result 2316 states and 3158 transitions. [2021-11-23 02:07:38,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:07:38,556 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 202 [2021-11-23 02:07:38,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:07:38,566 INFO L225 Difference]: With dead ends: 2316 [2021-11-23 02:07:38,566 INFO L226 Difference]: Without dead ends: 2314 [2021-11-23 02:07:38,567 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:07:38,568 INFO L933 BasicCegarLoop]: 1376 mSDtfsCounter, 971 mSDsluCounter, 2144 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1079 SdHoareTripleChecker+Valid, 3220 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:07:38,568 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1079 Valid, 3220 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-23 02:07:38,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2314 states. [2021-11-23 02:07:38,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2314 to 1784. [2021-11-23 02:07:38,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1033 states have (on average 1.1907066795740562) internal successors, (1230), 1083 states have internal predecessors, (1230), 534 states have call successors, (534), 205 states have call predecessors, (534), 207 states have return successors, (564), 527 states have call predecessors, (564), 531 states have call successors, (564) [2021-11-23 02:07:38,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2328 transitions. [2021-11-23 02:07:38,906 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2328 transitions. Word has length 202 [2021-11-23 02:07:38,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:07:38,907 INFO L470 AbstractCegarLoop]: Abstraction has 1784 states and 2328 transitions. [2021-11-23 02:07:38,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-23 02:07:38,908 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2328 transitions. [2021-11-23 02:07:38,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2021-11-23 02:07:38,911 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:07:38,911 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-11-23 02:07:38,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-11-23 02:07:38,912 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_linux_block_genhd_put_diskErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-23 02:07:38,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:07:38,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1159833639, now seen corresponding path program 1 times [2021-11-23 02:07:38,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:07:38,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173108714] [2021-11-23 02:07:38,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:07:38,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:07:39,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:07:39,108 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2021-11-23 02:07:39,108 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:07:39,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173108714] [2021-11-23 02:07:39,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173108714] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:07:39,109 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:07:39,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 02:07:39,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077985903] [2021-11-23 02:07:39,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:07:39,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 02:07:39,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:07:39,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 02:07:39,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:07:39,113 INFO L87 Difference]: Start difference. First operand 1784 states and 2328 transitions. Second operand has 6 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-23 02:07:41,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:07:41,738 INFO L93 Difference]: Finished difference Result 4012 states and 5370 transitions. [2021-11-23 02:07:41,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 02:07:41,739 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) Word has length 213 [2021-11-23 02:07:41,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:07:41,748 INFO L225 Difference]: With dead ends: 4012 [2021-11-23 02:07:41,749 INFO L226 Difference]: Without dead ends: 2248 [2021-11-23 02:07:41,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-23 02:07:41,759 INFO L933 BasicCegarLoop]: 897 mSDtfsCounter, 106 mSDsluCounter, 4063 mSDsCounter, 0 mSdLazyCounter, 833 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 4344 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:07:41,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 4344 Invalid, 836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 833 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-11-23 02:07:41,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2248 states. [2021-11-23 02:07:42,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2248 to 1792. [2021-11-23 02:07:42,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1792 states, 1039 states have (on average 1.1896053897978827) internal successors, (1236), 1089 states have internal predecessors, (1236), 534 states have call successors, (534), 205 states have call predecessors, (534), 209 states have return successors, (568), 529 states have call predecessors, (568), 531 states have call successors, (568) [2021-11-23 02:07:42,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1792 states to 1792 states and 2338 transitions. [2021-11-23 02:07:42,103 INFO L78 Accepts]: Start accepts. Automaton has 1792 states and 2338 transitions. Word has length 213 [2021-11-23 02:07:42,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:07:42,104 INFO L470 AbstractCegarLoop]: Abstraction has 1792 states and 2338 transitions. [2021-11-23 02:07:42,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-23 02:07:42,105 INFO L276 IsEmpty]: Start isEmpty. Operand 1792 states and 2338 transitions. [2021-11-23 02:07:42,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2021-11-23 02:07:42,109 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:07:42,109 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2021-11-23 02:07:42,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-11-23 02:07:42,110 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_linux_block_genhd_del_gendiskErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-23 02:07:42,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:07:42,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1061426033, now seen corresponding path program 1 times [2021-11-23 02:07:42,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:07:42,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496843060] [2021-11-23 02:07:42,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:07:42,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:07:42,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:07:42,454 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2021-11-23 02:07:42,454 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:07:42,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496843060] [2021-11-23 02:07:42,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496843060] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:07:42,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1642239995] [2021-11-23 02:07:42,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:07:42,455 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:07:42,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:07:42,456 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:07:42,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-23 02:07:43,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:07:43,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 2012 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-23 02:07:43,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:07:43,910 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2021-11-23 02:07:43,911 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:07:43,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1642239995] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:07:43,911 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 02:07:43,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [8] total 20 [2021-11-23 02:07:43,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790715447] [2021-11-23 02:07:43,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:07:43,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-23 02:07:43,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:07:43,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-23 02:07:43,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2021-11-23 02:07:43,914 INFO L87 Difference]: Start difference. First operand 1792 states and 2338 transitions. Second operand has 14 states, 10 states have (on average 8.1) internal successors, (81), 12 states have internal predecessors, (81), 6 states have call successors, (33), 2 states have call predecessors, (33), 5 states have return successors, (30), 7 states have call predecessors, (30), 6 states have call successors, (30) [2021-11-23 02:07:54,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:07:54,515 INFO L93 Difference]: Finished difference Result 4500 states and 6133 transitions. [2021-11-23 02:07:54,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-23 02:07:54,516 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 10 states have (on average 8.1) internal successors, (81), 12 states have internal predecessors, (81), 6 states have call successors, (33), 2 states have call predecessors, (33), 5 states have return successors, (30), 7 states have call predecessors, (30), 6 states have call successors, (30) Word has length 228 [2021-11-23 02:07:54,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:07:54,528 INFO L225 Difference]: With dead ends: 4500 [2021-11-23 02:07:54,528 INFO L226 Difference]: Without dead ends: 2726 [2021-11-23 02:07:54,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=106, Invalid=824, Unknown=0, NotChecked=0, Total=930 [2021-11-23 02:07:54,539 INFO L933 BasicCegarLoop]: 1170 mSDtfsCounter, 537 mSDsluCounter, 15234 mSDsCounter, 0 mSdLazyCounter, 3004 mSolverCounterSat, 456 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 541 SdHoareTripleChecker+Valid, 14226 SdHoareTripleChecker+Invalid, 3460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 456 IncrementalHoareTripleChecker+Valid, 3004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2021-11-23 02:07:54,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [541 Valid, 14226 Invalid, 3460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [456 Valid, 3004 Invalid, 0 Unknown, 0 Unchecked, 9.8s Time] [2021-11-23 02:07:54,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2726 states. [2021-11-23 02:07:54,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2726 to 1792. [2021-11-23 02:07:54,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1792 states, 1039 states have (on average 1.1896053897978827) internal successors, (1236), 1089 states have internal predecessors, (1236), 534 states have call successors, (534), 205 states have call predecessors, (534), 209 states have return successors, (568), 529 states have call predecessors, (568), 531 states have call successors, (568) [2021-11-23 02:07:54,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1792 states to 1792 states and 2338 transitions. [2021-11-23 02:07:54,974 INFO L78 Accepts]: Start accepts. Automaton has 1792 states and 2338 transitions. Word has length 228 [2021-11-23 02:07:54,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:07:54,975 INFO L470 AbstractCegarLoop]: Abstraction has 1792 states and 2338 transitions. [2021-11-23 02:07:54,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 10 states have (on average 8.1) internal successors, (81), 12 states have internal predecessors, (81), 6 states have call successors, (33), 2 states have call predecessors, (33), 5 states have return successors, (30), 7 states have call predecessors, (30), 6 states have call successors, (30) [2021-11-23 02:07:54,976 INFO L276 IsEmpty]: Start isEmpty. Operand 1792 states and 2338 transitions. [2021-11-23 02:07:54,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2021-11-23 02:07:54,980 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:07:54,980 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 7, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:07:55,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-23 02:07:55,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-11-23 02:07:55,206 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_linux_block_genhd_put_diskErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-23 02:07:55,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:07:55,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1051051382, now seen corresponding path program 1 times [2021-11-23 02:07:55,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:07:55,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231022562] [2021-11-23 02:07:55,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:07:55,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:07:55,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:07:55,384 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2021-11-23 02:07:55,384 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:07:55,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231022562] [2021-11-23 02:07:55,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231022562] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:07:55,385 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:07:55,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:07:55,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230619660] [2021-11-23 02:07:55,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:07:55,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:07:55,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:07:55,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:07:55,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:07:55,388 INFO L87 Difference]: Start difference. First operand 1792 states and 2338 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 3 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-23 02:07:57,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:07:57,883 INFO L93 Difference]: Finished difference Result 3630 states and 4763 transitions. [2021-11-23 02:07:57,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:07:57,884 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), 3 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 244 [2021-11-23 02:07:57,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:07:57,893 INFO L225 Difference]: With dead ends: 3630 [2021-11-23 02:07:57,893 INFO L226 Difference]: Without dead ends: 1858 [2021-11-23 02:07:57,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:07:57,903 INFO L933 BasicCegarLoop]: 755 mSDtfsCounter, 38 mSDsluCounter, 1768 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 2240 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:07:57,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 2240 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-23 02:07:57,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1858 states. [2021-11-23 02:07:58,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1858 to 1824. [2021-11-23 02:07:58,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1824 states, 1059 states have (on average 1.1935788479697829) internal successors, (1264), 1113 states have internal predecessors, (1264), 546 states have call successors, (546), 205 states have call predecessors, (546), 209 states have return successors, (580), 541 states have call predecessors, (580), 543 states have call successors, (580) [2021-11-23 02:07:58,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1824 states to 1824 states and 2390 transitions. [2021-11-23 02:07:58,360 INFO L78 Accepts]: Start accepts. Automaton has 1824 states and 2390 transitions. Word has length 244 [2021-11-23 02:07:58,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:07:58,361 INFO L470 AbstractCegarLoop]: Abstraction has 1824 states and 2390 transitions. [2021-11-23 02:07:58,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 3 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-23 02:07:58,361 INFO L276 IsEmpty]: Start isEmpty. Operand 1824 states and 2390 transitions. [2021-11-23 02:07:58,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2021-11-23 02:07:58,366 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:07:58,367 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 7, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:07:58,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-11-23 02:07:58,367 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_linux_block_genhd_put_diskErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-23 02:07:58,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:07:58,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1281125141, now seen corresponding path program 1 times [2021-11-23 02:07:58,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:07:58,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172311002] [2021-11-23 02:07:58,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:07:58,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:07:58,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:07:58,616 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2021-11-23 02:07:58,616 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:07:58,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172311002] [2021-11-23 02:07:58,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172311002] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:07:58,617 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:07:58,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-23 02:07:58,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197002982] [2021-11-23 02:07:58,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:07:58,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 02:07:58,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:07:58,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 02:07:58,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-23 02:07:58,622 INFO L87 Difference]: Start difference. First operand 1824 states and 2390 transitions. Second operand has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-23 02:08:03,695 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 02:08:05,604 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 02:08:06,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:08:06,346 INFO L93 Difference]: Finished difference Result 4122 states and 5552 transitions. [2021-11-23 02:08:06,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 02:08:06,347 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) Word has length 248 [2021-11-23 02:08:06,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:08:06,356 INFO L225 Difference]: With dead ends: 4122 [2021-11-23 02:08:06,356 INFO L226 Difference]: Without dead ends: 2318 [2021-11-23 02:08:06,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-11-23 02:08:06,364 INFO L933 BasicCegarLoop]: 910 mSDtfsCounter, 141 mSDsluCounter, 5168 mSDsCounter, 0 mSdLazyCounter, 1011 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 5301 SdHoareTripleChecker+Invalid, 1028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1011 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:08:06,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [217 Valid, 5301 Invalid, 1028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1011 Invalid, 1 Unknown, 0 Unchecked, 7.3s Time] [2021-11-23 02:08:06,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2021-11-23 02:08:06,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 1836. [2021-11-23 02:08:06,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1836 states, 1067 states have (on average 1.1921274601686973) internal successors, (1272), 1121 states have internal predecessors, (1272), 548 states have call successors, (548), 205 states have call predecessors, (548), 211 states have return successors, (586), 545 states have call predecessors, (586), 545 states have call successors, (586) [2021-11-23 02:08:06,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1836 states to 1836 states and 2406 transitions. [2021-11-23 02:08:06,629 INFO L78 Accepts]: Start accepts. Automaton has 1836 states and 2406 transitions. Word has length 248 [2021-11-23 02:08:06,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:08:06,629 INFO L470 AbstractCegarLoop]: Abstraction has 1836 states and 2406 transitions. [2021-11-23 02:08:06,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-23 02:08:06,630 INFO L276 IsEmpty]: Start isEmpty. Operand 1836 states and 2406 transitions. [2021-11-23 02:08:06,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2021-11-23 02:08:06,634 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:08:06,635 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:08:06,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-11-23 02:08:06,635 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ldv_linux_block_genhd_del_gendiskErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-23 02:08:06,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:08:06,636 INFO L85 PathProgramCache]: Analyzing trace with hash 172405108, now seen corresponding path program 1 times [2021-11-23 02:08:06,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:08:06,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484053407] [2021-11-23 02:08:06,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:08:06,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:08:06,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:08:06,918 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2021-11-23 02:08:06,918 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:08:06,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484053407] [2021-11-23 02:08:06,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484053407] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:08:06,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [784991787] [2021-11-23 02:08:06,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:08:06,919 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:08:06,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:08:06,922 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:08:06,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-23 02:08:07,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:08:07,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 2085 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-23 02:08:07,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:08:08,483 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2021-11-23 02:08:08,483 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:08:08,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [784991787] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:08:08,483 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 02:08:08,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [8] total 21 [2021-11-23 02:08:08,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927515573] [2021-11-23 02:08:08,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:08:08,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-23 02:08:08,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:08:08,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-23 02:08:08,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2021-11-23 02:08:08,487 INFO L87 Difference]: Start difference. First operand 1836 states and 2406 transitions. Second operand has 15 states, 11 states have (on average 7.636363636363637) internal successors, (84), 13 states have internal predecessors, (84), 7 states have call successors, (34), 2 states have call predecessors, (34), 5 states have return successors, (32), 8 states have call predecessors, (32), 7 states have call successors, (32) [2021-11-23 02:08:20,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:08:20,232 INFO L93 Difference]: Finished difference Result 4618 states and 6325 transitions. [2021-11-23 02:08:20,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-23 02:08:20,233 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 11 states have (on average 7.636363636363637) internal successors, (84), 13 states have internal predecessors, (84), 7 states have call successors, (34), 2 states have call predecessors, (34), 5 states have return successors, (32), 8 states have call predecessors, (32), 7 states have call successors, (32) Word has length 261 [2021-11-23 02:08:20,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:08:20,250 INFO L225 Difference]: With dead ends: 4618 [2021-11-23 02:08:20,250 INFO L226 Difference]: Without dead ends: 2800 [2021-11-23 02:08:20,260 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=119, Invalid=1003, Unknown=0, NotChecked=0, Total=1122 [2021-11-23 02:08:20,261 INFO L933 BasicCegarLoop]: 1187 mSDtfsCounter, 572 mSDsluCounter, 16801 mSDsCounter, 0 mSdLazyCounter, 3284 mSolverCounterSat, 471 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 15608 SdHoareTripleChecker+Invalid, 3755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 471 IncrementalHoareTripleChecker+Valid, 3284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2021-11-23 02:08:20,261 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [580 Valid, 15608 Invalid, 3755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [471 Valid, 3284 Invalid, 0 Unknown, 0 Unchecked, 10.9s Time] [2021-11-23 02:08:20,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2800 states. [2021-11-23 02:08:20,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2800 to 1828. [2021-11-23 02:08:20,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1828 states, 1061 states have (on average 1.1932139491046183) internal successors, (1266), 1115 states have internal predecessors, (1266), 548 states have call successors, (548), 205 states have call predecessors, (548), 209 states have return successors, (582), 543 states have call predecessors, (582), 545 states have call successors, (582) [2021-11-23 02:08:20,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1828 states to 1828 states and 2396 transitions. [2021-11-23 02:08:20,709 INFO L78 Accepts]: Start accepts. Automaton has 1828 states and 2396 transitions. Word has length 261 [2021-11-23 02:08:20,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:08:20,709 INFO L470 AbstractCegarLoop]: Abstraction has 1828 states and 2396 transitions. [2021-11-23 02:08:20,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 11 states have (on average 7.636363636363637) internal successors, (84), 13 states have internal predecessors, (84), 7 states have call successors, (34), 2 states have call predecessors, (34), 5 states have return successors, (32), 8 states have call predecessors, (32), 7 states have call successors, (32) [2021-11-23 02:08:20,710 INFO L276 IsEmpty]: Start isEmpty. Operand 1828 states and 2396 transitions. [2021-11-23 02:08:20,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2021-11-23 02:08:20,714 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:08:20,715 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 7, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:08:20,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-23 02:08:20,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-11-23 02:08:20,930 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ldv_linux_block_genhd_put_diskErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-23 02:08:20,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:08:20,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1453831777, now seen corresponding path program 1 times [2021-11-23 02:08:20,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:08:20,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163359047] [2021-11-23 02:08:20,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:08:20,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:08:21,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:08:21,272 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2021-11-23 02:08:21,273 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:08:21,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163359047] [2021-11-23 02:08:21,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163359047] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:08:21,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720426608] [2021-11-23 02:08:21,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:08:21,274 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:08:21,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:08:21,275 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:08:21,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-23 02:08:22,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:08:22,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 2208 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 02:08:22,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:08:22,877 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2021-11-23 02:08:22,877 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:08:22,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720426608] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:08:22,878 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 02:08:22,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 9 [2021-11-23 02:08:22,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493290559] [2021-11-23 02:08:22,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:08:22,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:08:22,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:08:22,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:08:22,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-23 02:08:22,880 INFO L87 Difference]: Start difference. First operand 1828 states and 2396 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 2 states have internal predecessors, (78), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2021-11-23 02:08:24,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:08:24,854 INFO L93 Difference]: Finished difference Result 5315 states and 6935 transitions. [2021-11-23 02:08:24,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:08:24,855 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 2 states have internal predecessors, (78), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 261 [2021-11-23 02:08:24,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:08:24,867 INFO L225 Difference]: With dead ends: 5315 [2021-11-23 02:08:24,868 INFO L226 Difference]: Without dead ends: 3507 [2021-11-23 02:08:24,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-23 02:08:24,875 INFO L933 BasicCegarLoop]: 923 mSDtfsCounter, 597 mSDsluCounter, 855 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 1640 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-23 02:08:24,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [597 Valid, 1640 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-23 02:08:24,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3507 states. [2021-11-23 02:08:25,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3507 to 3433. [2021-11-23 02:08:25,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3433 states, 1985 states have (on average 1.1944584382871537) internal successors, (2371), 2082 states have internal predecessors, (2371), 1032 states have call successors, (1032), 396 states have call predecessors, (1032), 406 states have return successors, (1097), 1024 states have call predecessors, (1097), 1029 states have call successors, (1097) [2021-11-23 02:08:25,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3433 states to 3433 states and 4500 transitions. [2021-11-23 02:08:25,484 INFO L78 Accepts]: Start accepts. Automaton has 3433 states and 4500 transitions. Word has length 261 [2021-11-23 02:08:25,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:08:25,485 INFO L470 AbstractCegarLoop]: Abstraction has 3433 states and 4500 transitions. [2021-11-23 02:08:25,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 2 states have internal predecessors, (78), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2021-11-23 02:08:25,485 INFO L276 IsEmpty]: Start isEmpty. Operand 3433 states and 4500 transitions. [2021-11-23 02:08:25,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2021-11-23 02:08:25,490 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:08:25,490 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 7, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:08:25,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-23 02:08:25,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-11-23 02:08:25,706 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ldv_linux_block_genhd_del_gendiskErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-23 02:08:25,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:08:25,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1434682222, now seen corresponding path program 1 times [2021-11-23 02:08:25,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:08:25,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748537072] [2021-11-23 02:08:25,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:08:25,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:08:25,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:08:26,016 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2021-11-23 02:08:26,016 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:08:26,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748537072] [2021-11-23 02:08:26,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748537072] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:08:26,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2083091788] [2021-11-23 02:08:26,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:08:26,017 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:08:26,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:08:26,019 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:08:26,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-23 02:08:27,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:08:27,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 2256 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-23 02:08:27,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:08:27,587 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2021-11-23 02:08:27,587 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:08:27,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2083091788] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:08:27,587 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 02:08:27,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 10 [2021-11-23 02:08:27,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600881768] [2021-11-23 02:08:27,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:08:27,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 02:08:27,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:08:27,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 02:08:27,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-11-23 02:08:27,589 INFO L87 Difference]: Start difference. First operand 3433 states and 4500 transitions. Second operand has 8 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 states have internal predecessors, (99), 3 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (36), 5 states have call predecessors, (36), 3 states have call successors, (36) [2021-11-23 02:08:30,542 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 02:08:33,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:08:33,036 INFO L93 Difference]: Finished difference Result 6894 states and 9083 transitions. [2021-11-23 02:08:33,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 02:08:33,036 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 states have internal predecessors, (99), 3 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (36), 5 states have call predecessors, (36), 3 states have call successors, (36) Word has length 266 [2021-11-23 02:08:33,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:08:33,053 INFO L225 Difference]: With dead ends: 6894 [2021-11-23 02:08:33,053 INFO L226 Difference]: Without dead ends: 3481 [2021-11-23 02:08:33,070 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-23 02:08:33,071 INFO L933 BasicCegarLoop]: 747 mSDtfsCounter, 1 mSDsluCounter, 5331 mSDsCounter, 0 mSdLazyCounter, 1033 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 5220 SdHoareTripleChecker+Invalid, 1034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1033 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2021-11-23 02:08:33,071 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 5220 Invalid, 1034 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1033 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2021-11-23 02:08:33,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3481 states. [2021-11-23 02:08:33,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3481 to 3457. [2021-11-23 02:08:33,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3457 states, 2001 states have (on average 1.192903548225887) internal successors, (2387), 2094 states have internal predecessors, (2387), 1036 states have call successors, (1036), 396 states have call predecessors, (1036), 410 states have return successors, (1137), 1036 states have call predecessors, (1137), 1033 states have call successors, (1137) [2021-11-23 02:08:33,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3457 states to 3457 states and 4560 transitions. [2021-11-23 02:08:33,687 INFO L78 Accepts]: Start accepts. Automaton has 3457 states and 4560 transitions. Word has length 266 [2021-11-23 02:08:33,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:08:33,687 INFO L470 AbstractCegarLoop]: Abstraction has 3457 states and 4560 transitions. [2021-11-23 02:08:33,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 states have internal predecessors, (99), 3 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (36), 5 states have call predecessors, (36), 3 states have call successors, (36) [2021-11-23 02:08:33,688 INFO L276 IsEmpty]: Start isEmpty. Operand 3457 states and 4560 transitions. [2021-11-23 02:08:33,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2021-11-23 02:08:33,691 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:08:33,692 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 7, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:08:33,745 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-23 02:08:33,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:08:33,918 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ldv_linux_block_genhd_del_gendiskErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-23 02:08:33,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:08:33,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1503896207, now seen corresponding path program 1 times [2021-11-23 02:08:33,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:08:33,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362716459] [2021-11-23 02:08:33,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:08:33,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:08:34,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:08:34,233 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2021-11-23 02:08:34,233 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:08:34,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362716459] [2021-11-23 02:08:34,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362716459] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:08:34,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1283201938] [2021-11-23 02:08:34,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:08:34,234 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:08:34,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:08:34,236 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:08:34,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-23 02:08:35,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:08:35,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 2301 conjuncts, 45 conjunts are in the unsatisfiable core [2021-11-23 02:08:35,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:08:35,792 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2021-11-23 02:08:35,792 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:08:35,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1283201938] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:08:35,792 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 02:08:35,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 8 [2021-11-23 02:08:35,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940606917] [2021-11-23 02:08:35,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:08:35,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 02:08:35,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:08:35,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 02:08:35,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:08:35,795 INFO L87 Difference]: Start difference. First operand 3457 states and 4560 transitions. Second operand has 8 states, 7 states have (on average 14.857142857142858) internal successors, (104), 6 states have internal predecessors, (104), 3 states have call successors, (41), 2 states have call predecessors, (41), 4 states have return successors, (38), 5 states have call predecessors, (38), 3 states have call successors, (38) [2021-11-23 02:08:39,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:08:39,690 INFO L93 Difference]: Finished difference Result 7604 states and 10237 transitions. [2021-11-23 02:08:39,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 02:08:39,691 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.857142857142858) internal successors, (104), 6 states have internal predecessors, (104), 3 states have call successors, (41), 2 states have call predecessors, (41), 4 states have return successors, (38), 5 states have call predecessors, (38), 3 states have call successors, (38) Word has length 279 [2021-11-23 02:08:39,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:08:39,704 INFO L225 Difference]: With dead ends: 7604 [2021-11-23 02:08:39,704 INFO L226 Difference]: Without dead ends: 4167 [2021-11-23 02:08:39,713 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-23 02:08:39,714 INFO L933 BasicCegarLoop]: 889 mSDtfsCounter, 66 mSDsluCounter, 6171 mSDsCounter, 0 mSdLazyCounter, 1166 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 6110 SdHoareTripleChecker+Invalid, 1166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:08:39,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 6110 Invalid, 1166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1166 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2021-11-23 02:08:39,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4167 states. [2021-11-23 02:08:40,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4167 to 3465. [2021-11-23 02:08:40,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3465 states, 2009 states have (on average 1.1921353907416625) internal successors, (2395), 2098 states have internal predecessors, (2395), 1036 states have call successors, (1036), 396 states have call predecessors, (1036), 410 states have return successors, (1137), 1040 states have call predecessors, (1137), 1033 states have call successors, (1137) [2021-11-23 02:08:40,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3465 states to 3465 states and 4568 transitions. [2021-11-23 02:08:40,237 INFO L78 Accepts]: Start accepts. Automaton has 3465 states and 4568 transitions. Word has length 279 [2021-11-23 02:08:40,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:08:40,237 INFO L470 AbstractCegarLoop]: Abstraction has 3465 states and 4568 transitions. [2021-11-23 02:08:40,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.857142857142858) internal successors, (104), 6 states have internal predecessors, (104), 3 states have call successors, (41), 2 states have call predecessors, (41), 4 states have return successors, (38), 5 states have call predecessors, (38), 3 states have call successors, (38) [2021-11-23 02:08:40,237 INFO L276 IsEmpty]: Start isEmpty. Operand 3465 states and 4568 transitions. [2021-11-23 02:08:40,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2021-11-23 02:08:40,240 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:08:40,240 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:08:40,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-23 02:08:40,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2021-11-23 02:08:40,441 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-23 02:08:40,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:08:40,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1273672181, now seen corresponding path program 1 times [2021-11-23 02:08:40,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:08:40,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091650113] [2021-11-23 02:08:40,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:08:40,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:08:40,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:08:40,966 INFO L134 CoverageAnalysis]: Checked inductivity of 939 backedges. 4 proven. 72 refuted. 0 times theorem prover too weak. 863 trivial. 0 not checked. [2021-11-23 02:08:40,966 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:08:40,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091650113] [2021-11-23 02:08:40,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091650113] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:08:40,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [336451515] [2021-11-23 02:08:40,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:08:40,967 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:08:40,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:08:40,968 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:08:40,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-23 02:08:41,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:08:41,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 2091 conjuncts, 54 conjunts are in the unsatisfiable core [2021-11-23 02:08:41,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:08:42,611 INFO L134 CoverageAnalysis]: Checked inductivity of 939 backedges. 282 proven. 2 refuted. 0 times theorem prover too weak. 655 trivial. 0 not checked. [2021-11-23 02:08:42,611 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:08:43,760 INFO L134 CoverageAnalysis]: Checked inductivity of 939 backedges. 4 proven. 66 refuted. 0 times theorem prover too weak. 869 trivial. 0 not checked. [2021-11-23 02:08:43,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [336451515] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:08:43,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [671678524] [2021-11-23 02:08:43,791 INFO L159 IcfgInterpreter]: Started Sifa with 118 locations of interest [2021-11-23 02:08:43,791 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:08:43,797 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:08:43,804 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:08:43,804 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:08:45,417 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 9 treesize of output 11 [2021-11-23 02:08:45,639 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 9 treesize of output 11 [2021-11-23 02:08:49,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:50,571 INFO L354 Elim1Store]: treesize reduction 352, result has 45.6 percent of original size [2021-11-23 02:08:50,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 35 select indices, 35 select index equivalence classes, 597 disjoint index pairs (out of 595 index pairs), introduced 35 new quantified variables, introduced 34 case distinctions, treesize of input 182 treesize of output 410 [2021-11-23 02:08:51,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:51,309 INFO L244 Elim1Store]: Index analysis took 101 ms [2021-11-23 02:08:52,769 INFO L354 Elim1Store]: treesize reduction 612, result has 33.4 percent of original size [2021-11-23 02:08:52,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 37 select indices, 37 select index equivalence classes, 632 disjoint index pairs (out of 666 index pairs), introduced 37 new quantified variables, introduced 68 case distinctions, treesize of input 192 treesize of output 433 [2021-11-23 02:08:53,003 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 31 [2021-11-23 02:08:53,017 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 31 [2021-11-23 02:08:56,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 5 [2021-11-23 02:08:56,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:08:59,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-23 02:08:59,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 02:08:59,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 02:09:00,799 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 31 [2021-11-23 02:09:01,942 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_undef_int with input of size 252 for LOIs [2021-11-23 02:09:02,062 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_xmalloc with input of size 261 for LOIs [2021-11-23 02:09:02,398 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 36 treesize of output 33 [2021-11-23 02:09:02,436 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 30 treesize of output 29 [2021-11-23 02:09:02,764 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 36 treesize of output 33 [2021-11-23 02:09:02,789 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 30 treesize of output 29 [2021-11-23 02:09:03,500 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 5 [2021-11-23 02:09:03,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:09:03,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 5 [2021-11-23 02:09:03,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:09:04,739 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 72 treesize of output 71 [2021-11-23 02:09:04,774 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 71 treesize of output 68 [2021-11-23 02:09:05,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 72 treesize of output 69 [2021-11-23 02:09:05,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 66 treesize of output 65 [2021-11-23 02:09:05,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 72 treesize of output 71 [2021-11-23 02:09:05,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 71 treesize of output 68 [2021-11-23 02:09:06,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:09:06,525 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 5 [2021-11-23 02:09:06,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 36 treesize of output 33 [2021-11-23 02:09:06,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 30 treesize of output 29 [2021-11-23 02:09:06,935 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_assume with input of size 274 for LOIs [2021-11-23 02:09:07,199 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_is_err with input of size 272 for LOIs [2021-11-23 02:09:07,276 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:09:15,573 WARN L227 SmtUtils]: Spent 8.00s on a formula simplification that was a NOOP. DAG size: 1023 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:09:31,987 WARN L227 SmtUtils]: Spent 8.37s on a formula simplification that was a NOOP. DAG size: 1028 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:10:50,731 WARN L227 SmtUtils]: Spent 10.90s on a formula simplification. DAG size of input: 460 DAG size of output: 382 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:10:58,548 WARN L227 SmtUtils]: Spent 7.09s on a formula simplification. DAG size of input: 486 DAG size of output: 421 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:10:58,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [671678524] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:10:58,578 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-23 02:10:58,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [9, 9, 8] total 40 [2021-11-23 02:10:58,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7220960] [2021-11-23 02:10:58,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:10:58,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-23 02:10:58,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:10:58,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-23 02:10:58,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=1363, Unknown=0, NotChecked=0, Total=1560 [2021-11-23 02:10:58,582 INFO L87 Difference]: Start difference. First operand 3465 states and 4568 transitions. Second operand has 28 states, 17 states have (on average 3.9411764705882355) internal successors, (67), 16 states have internal predecessors, (67), 8 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 8 states have call predecessors, (39), 8 states have call successors, (39) [2021-11-23 02:11:22,549 WARN L227 SmtUtils]: Spent 23.55s on a formula simplification. DAG size of input: 1180 DAG size of output: 1051 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:11:49,202 WARN L227 SmtUtils]: Spent 26.34s on a formula simplification. DAG size of input: 1182 DAG size of output: 1053 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:12:45,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:12:45,659 INFO L93 Difference]: Finished difference Result 7383 states and 9749 transitions. [2021-11-23 02:12:45,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-11-23 02:12:45,660 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 17 states have (on average 3.9411764705882355) internal successors, (67), 16 states have internal predecessors, (67), 8 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 8 states have call predecessors, (39), 8 states have call successors, (39) Word has length 267 [2021-11-23 02:12:45,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:12:45,674 INFO L225 Difference]: With dead ends: 7383 [2021-11-23 02:12:45,674 INFO L226 Difference]: Without dead ends: 3932 [2021-11-23 02:12:45,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 814 GetRequests, 769 SyntacticMatches, 3 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 164.8s TimeCoverageRelationStatistics Valid=231, Invalid=1661, Unknown=0, NotChecked=0, Total=1892 [2021-11-23 02:12:45,694 INFO L933 BasicCegarLoop]: 882 mSDtfsCounter, 778 mSDsluCounter, 9218 mSDsCounter, 0 mSdLazyCounter, 6828 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 830 SdHoareTripleChecker+Valid, 8584 SdHoareTripleChecker+Invalid, 7003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 6828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.6s IncrementalHoareTripleChecker+Time [2021-11-23 02:12:45,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [830 Valid, 8584 Invalid, 7003 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [175 Valid, 6828 Invalid, 0 Unknown, 0 Unchecked, 52.6s Time] [2021-11-23 02:12:45,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3932 states. [2021-11-23 02:12:46,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3932 to 3919. [2021-11-23 02:12:46,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3919 states, 2271 states have (on average 1.1911052399823867) internal successors, (2705), 2377 states have internal predecessors, (2705), 1179 states have call successors, (1179), 444 states have call predecessors, (1179), 459 states have return successors, (1302), 1180 states have call predecessors, (1302), 1176 states have call successors, (1302) [2021-11-23 02:12:46,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3919 states to 3919 states and 5186 transitions. [2021-11-23 02:12:46,782 INFO L78 Accepts]: Start accepts. Automaton has 3919 states and 5186 transitions. Word has length 267 [2021-11-23 02:12:46,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:12:46,782 INFO L470 AbstractCegarLoop]: Abstraction has 3919 states and 5186 transitions. [2021-11-23 02:12:46,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 17 states have (on average 3.9411764705882355) internal successors, (67), 16 states have internal predecessors, (67), 8 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 8 states have call predecessors, (39), 8 states have call successors, (39) [2021-11-23 02:12:46,783 INFO L276 IsEmpty]: Start isEmpty. Operand 3919 states and 5186 transitions. [2021-11-23 02:12:46,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2021-11-23 02:12:46,787 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:12:46,788 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 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] [2021-11-23 02:12:46,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-23 02:12:47,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2021-11-23 02:12:47,002 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2021-11-23 02:12:47,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:12:47,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1024708158, now seen corresponding path program 1 times [2021-11-23 02:12:47,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:12:47,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146490664] [2021-11-23 02:12:47,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:12:47,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:12:47,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:12:48,065 INFO L134 CoverageAnalysis]: Checked inductivity of 945 backedges. 54 proven. 3 refuted. 0 times theorem prover too weak. 888 trivial. 0 not checked. [2021-11-23 02:12:48,065 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:12:48,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146490664] [2021-11-23 02:12:48,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146490664] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:12:48,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570231230] [2021-11-23 02:12:48,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:12:48,066 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:12:48,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:12:48,067 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:12:48,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31bd3836-27bf-4484-ba74-0b0ae94921f5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-23 02:12:49,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:12:49,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 2106 conjuncts, 80 conjunts are in the unsatisfiable core [2021-11-23 02:12:49,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:12:50,887 INFO L134 CoverageAnalysis]: Checked inductivity of 945 backedges. 61 proven. 2 refuted. 0 times theorem prover too weak. 882 trivial. 0 not checked. [2021-11-23 02:12:50,887 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:12:52,358 INFO L134 CoverageAnalysis]: Checked inductivity of 945 backedges. 54 proven. 3 refuted. 0 times theorem prover too weak. 888 trivial. 0 not checked. [2021-11-23 02:12:52,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1570231230] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:12:52,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1172959281] [2021-11-23 02:12:52,365 INFO L159 IcfgInterpreter]: Started Sifa with 119 locations of interest [2021-11-23 02:12:52,365 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:12:52,366 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:12:52,367 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:12:52,367 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:12:53,433 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 9 treesize of output 11 [2021-11-23 02:12:53,524 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 9 treesize of output 11 [2021-11-23 02:12:57,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:12:58,614 INFO L354 Elim1Store]: treesize reduction 612, result has 33.4 percent of original size [2021-11-23 02:12:58,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 37 select indices, 37 select index equivalence classes, 632 disjoint index pairs (out of 666 index pairs), introduced 37 new quantified variables, introduced 68 case distinctions, treesize of input 192 treesize of output 433 [2021-11-23 02:12:58,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:12:58,948 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 35 select indices, 35 select index equivalence classes, 631 disjoint index pairs (out of 595 index pairs), introduced 35 new quantified variables, introduced 0 case distinctions, treesize of input 182 treesize of output 286 [2021-11-23 02:13:13,882 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:13:13,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 5 [2021-11-23 02:13:15,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:15,030 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 36 select indices, 36 select index equivalence classes, 631 disjoint index pairs (out of 630 index pairs), introduced 36 new quantified variables, introduced 0 case distinctions, treesize of input 181 treesize of output 109 [2021-11-23 02:13:15,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:15,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 37 select indices, 37 select index equivalence classes, 666 disjoint index pairs (out of 666 index pairs), introduced 37 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 112 [2021-11-23 02:13:17,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:17,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 37 select indices, 37 select index equivalence classes, 666 disjoint index pairs (out of 666 index pairs), introduced 37 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 112 [2021-11-23 02:13:17,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:17,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 36 select indices, 36 select index equivalence classes, 631 disjoint index pairs (out of 630 index pairs), introduced 36 new quantified variables, introduced 0 case distinctions, treesize of input 181 treesize of output 109 [2021-11-23 02:13:23,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,819 INFO L244 Elim1Store]: Index analysis took 436 ms [2021-11-23 02:13:23,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,825 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:13:23,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,835 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:13:23,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,837 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:13:23,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,839 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:13:23,840 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:13:23,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:23,844 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:13:23,845 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:13:23,848 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:13:25,305 INFO L354 Elim1Store]: treesize reduction 96, result has 48.1 percent of original size [2021-11-23 02:13:25,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 67 select indices, 67 select index equivalence classes, 442 disjoint index pairs (out of 2211 index pairs), introduced 67 new quantified variables, introduced 8 case distinctions, treesize of input 5083 treesize of output 4926 [2021-11-23 02:13:26,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,502 INFO L244 Elim1Store]: Index analysis took 476 ms [2021-11-23 02:13:26,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,509 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:13:26,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,518 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:13:26,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,520 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:13:26,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,522 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:13:26,523 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:13:26,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:26,527 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:13:26,528 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:13:26,529 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:13:27,220 INFO L354 Elim1Store]: treesize reduction 124, result has 33.0 percent of original size [2021-11-23 02:13:27,223 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 67 select indices, 67 select index equivalence classes, 442 disjoint index pairs (out of 2211 index pairs), introduced 67 new quantified variables, introduced 8 case distinctions, treesize of input 5103 treesize of output 4918 [2021-11-23 02:13:27,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:27,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,217 INFO L244 Elim1Store]: Index analysis took 323 ms [2021-11-23 02:13:28,220 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:13:28,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,239 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:13:28,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,278 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:13:28,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,286 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:13:28,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:13:28,852 INFO L354 Elim1Store]: treesize reduction 144, result has 41.0 percent of original size [2021-11-23 02:13:28,855 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 86 select indices, 86 select index equivalence classes, 390 disjoint index pairs (out of 3655 index pairs), introduced 86 new quantified variables, introduced 9 case distinctions, treesize of input 5102 treesize of output 4919 [2021-11-23 02:15:10,275 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 02:15:13,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2021-11-23 02:15:14,061 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:16:25,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2021-11-23 02:16:25,782 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:16:26,414 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 18