./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--video--fbdev--s3fb.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/bin/utaipan-ByfvJB40ur --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 26f15b7e6740f578c6e54d216b7f2e3d14f4b637cdec8f40f3de59ca32c0137e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 22:22:39,183 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:22:39,186 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:22:39,224 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:22:39,225 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:22:39,229 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:22:39,230 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:22:39,252 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:22:39,254 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:22:39,255 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:22:39,256 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:22:39,257 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:22:39,257 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:22:39,258 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:22:39,259 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:22:39,260 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:22:39,263 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:22:39,267 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:22:39,268 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:22:39,270 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:22:39,274 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:22:39,275 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:22:39,276 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:22:39,277 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:22:39,280 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:22:39,280 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:22:39,281 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:22:39,282 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:22:39,282 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:22:39,283 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:22:39,283 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:22:39,284 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:22:39,285 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:22:39,285 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:22:39,286 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:22:39,287 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:22:39,287 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:22:39,287 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:22:39,288 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:22:39,289 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:22:39,289 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:22:39,290 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-25 22:22:39,314 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:22:39,315 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:22:39,316 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:22:39,316 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:22:39,317 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:22:39,317 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:22:39,317 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:22:39,317 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:22:39,318 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:22:39,318 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:22:39,319 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:22:39,319 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:22:39,320 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:22:39,320 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:22:39,320 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:22:39,320 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:22:39,320 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:22:39,321 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:22:39,322 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:22:39,322 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:22:39,322 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:22:39,322 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:22:39,323 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:22:39,323 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:22:39,323 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:22:39,323 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:22:39,323 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:22:39,324 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:22:39,324 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:22:39,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:22:39,324 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:22:39,325 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:22:39,325 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:22:39,325 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:22:39,325 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:22:39,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:22:39,326 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:22:39,326 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:22:39,326 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26f15b7e6740f578c6e54d216b7f2e3d14f4b637cdec8f40f3de59ca32c0137e [2022-11-25 22:22:39,591 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:22:39,620 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:22:39,623 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:22:39,624 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:22:39,624 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:22:39,626 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i [2022-11-25 22:22:42,693 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:22:43,420 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:22:43,421 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i [2022-11-25 22:22:43,476 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/bin/utaipan-ByfvJB40ur/data/af8cadf17/767e62c1391d42e9b6769a9d720542d9/FLAG40479de7b [2022-11-25 22:22:43,498 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/bin/utaipan-ByfvJB40ur/data/af8cadf17/767e62c1391d42e9b6769a9d720542d9 [2022-11-25 22:22:43,504 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:22:43,507 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:22:43,511 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:22:43,511 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:22:43,516 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:22:43,518 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:22:43" (1/1) ... [2022-11-25 22:22:43,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e8905c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:22:43, skipping insertion in model container [2022-11-25 22:22:43,519 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:22:43" (1/1) ... [2022-11-25 22:22:43,528 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:22:43,714 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:22:45,012 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_word [2022-11-25 22:22:45,511 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 22:22:45,520 WARN L623 FunctionHandler]: Unknown extern function i2c_bit_add_bus [2022-11-25 22:22:45,535 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:22:45,551 WARN L623 FunctionHandler]: Unknown extern function svga_tilecursor [2022-11-25 22:22:45,669 WARN L623 FunctionHandler]: Unknown extern function cfb_imageblit [2022-11-25 22:22:45,675 WARN L623 FunctionHandler]: Unknown extern function cfb_fillrect [2022-11-25 22:22:45,681 WARN L623 FunctionHandler]: Unknown extern function svga_compute_pll [2022-11-25 22:22:45,684 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:22:45,699 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 22:22:45,710 WARN L623 FunctionHandler]: Unknown extern function save_vga [2022-11-25 22:22:45,721 WARN L623 FunctionHandler]: Unknown extern function restore_vga [2022-11-25 22:22:45,731 WARN L623 FunctionHandler]: Unknown extern function svga_match_format [2022-11-25 22:22:45,733 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:22:45,739 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:22:45,740 WARN L623 FunctionHandler]: Unknown extern function svga_check_timings [2022-11-25 22:22:45,742 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:22:45,742 WARN L623 FunctionHandler]: Unknown extern function svga_compute_pll [2022-11-25 22:22:45,747 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:22:45,769 WARN L623 FunctionHandler]: Unknown extern function svga_set_default_gfx_regs [2022-11-25 22:22:45,769 WARN L623 FunctionHandler]: Unknown extern function svga_set_default_atc_regs [2022-11-25 22:22:45,771 WARN L623 FunctionHandler]: Unknown extern function svga_set_default_seq_regs [2022-11-25 22:22:45,771 WARN L623 FunctionHandler]: Unknown extern function svga_set_default_crt_regs [2022-11-25 22:22:45,773 WARN L623 FunctionHandler]: Unknown extern function svga_wcrt_multi [2022-11-25 22:22:45,773 WARN L623 FunctionHandler]: Unknown extern function svga_wcrt_multi [2022-11-25 22:22:45,782 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 22:22:45,783 WARN L623 FunctionHandler]: Unknown extern function svga_wcrt_multi [2022-11-25 22:22:45,791 WARN L623 FunctionHandler]: Unknown extern function svga_match_format [2022-11-25 22:22:45,796 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 22:22:45,802 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 22:22:45,803 WARN L623 FunctionHandler]: Unknown extern function svga_set_textmode_vga_regs [2022-11-25 22:22:45,805 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 22:22:45,807 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 22:22:45,810 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 22:22:45,815 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 22:22:45,820 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 22:22:45,826 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 22:22:45,834 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 22:22:45,841 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 22:22:45,842 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:22:45,844 WARN L623 FunctionHandler]: Unknown extern function svga_set_timings [2022-11-25 22:22:45,856 WARN L623 FunctionHandler]: Unknown extern function svga_wcrt_multi [2022-11-25 22:22:45,876 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 22:22:45,878 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 22:22:45,880 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 22:22:45,887 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 22:22:45,889 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 22:22:45,895 WARN L623 FunctionHandler]: Unknown extern function svga_wcrt_multi [2022-11-25 22:22:45,919 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 22:22:45,920 WARN L623 FunctionHandler]: Unknown extern function framebuffer_alloc [2022-11-25 22:22:45,921 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:22:45,922 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-11-25 22:22:45,922 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-11-25 22:22:45,923 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:22:45,924 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-11-25 22:22:45,924 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:22:45,927 WARN L623 FunctionHandler]: Unknown extern function pci_iomap [2022-11-25 22:22:45,928 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:22:45,928 WARN L623 FunctionHandler]: Unknown extern function pcibios_bus_to_resource [2022-11-25 22:22:45,940 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:22:45,942 WARN L623 FunctionHandler]: Unknown extern function fb_ddc_read [2022-11-25 22:22:45,943 WARN L623 FunctionHandler]: Unknown extern function fb_edid_to_monspecs [2022-11-25 22:22:45,943 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:22:45,944 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:22:45,947 WARN L623 FunctionHandler]: Unknown extern function fb_videomode_to_modelist [2022-11-25 22:22:45,948 WARN L623 FunctionHandler]: Unknown extern function fb_find_best_display [2022-11-25 22:22:45,949 WARN L623 FunctionHandler]: Unknown extern function fb_videomode_to_var [2022-11-25 22:22:45,952 WARN L623 FunctionHandler]: Unknown extern function fb_find_mode [2022-11-25 22:22:45,954 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:22:45,955 WARN L623 FunctionHandler]: Unknown extern function fb_destroy_modedb [2022-11-25 22:22:45,956 WARN L623 FunctionHandler]: Unknown extern function fb_destroy_modedb [2022-11-25 22:22:45,957 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:22:45,959 WARN L623 FunctionHandler]: Unknown extern function fb_alloc_cmap [2022-11-25 22:22:45,960 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:22:45,960 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:22:45,961 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:22:45,965 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:22:45,966 WARN L623 FunctionHandler]: Unknown extern function mtrr_add [2022-11-25 22:22:45,966 WARN L623 FunctionHandler]: Unknown extern function fb_dealloc_cmap [2022-11-25 22:22:45,967 WARN L623 FunctionHandler]: Unknown extern function i2c_del_adapter [2022-11-25 22:22:45,968 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-11-25 22:22:45,969 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-25 22:22:45,969 WARN L623 FunctionHandler]: Unknown extern function framebuffer_release [2022-11-25 22:22:45,975 WARN L623 FunctionHandler]: Unknown extern function mtrr_del [2022-11-25 22:22:45,976 WARN L623 FunctionHandler]: Unknown extern function fb_dealloc_cmap [2022-11-25 22:22:45,977 WARN L623 FunctionHandler]: Unknown extern function i2c_del_adapter [2022-11-25 22:22:45,977 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-11-25 22:22:45,978 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-25 22:22:45,978 WARN L623 FunctionHandler]: Unknown extern function framebuffer_release [2022-11-25 22:22:45,983 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 22:22:45,983 WARN L623 FunctionHandler]: Unknown extern function console_lock [2022-11-25 22:22:45,984 WARN L623 FunctionHandler]: Unknown extern function console_unlock [2022-11-25 22:22:45,985 WARN L623 FunctionHandler]: Unknown extern function fb_set_suspend [2022-11-25 22:22:45,985 WARN L623 FunctionHandler]: Unknown extern function pci_save_state [2022-11-25 22:22:45,985 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 22:22:45,985 WARN L623 FunctionHandler]: Unknown extern function pci_choose_state [2022-11-25 22:22:45,986 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-11-25 22:22:45,986 WARN L623 FunctionHandler]: Unknown extern function console_unlock [2022-11-25 22:22:45,991 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 22:22:45,992 WARN L623 FunctionHandler]: Unknown extern function console_lock [2022-11-25 22:22:45,992 WARN L623 FunctionHandler]: Unknown extern function console_unlock [2022-11-25 22:22:45,993 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-11-25 22:22:45,993 WARN L623 FunctionHandler]: Unknown extern function pci_restore_state [2022-11-25 22:22:45,993 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-11-25 22:22:45,994 WARN L623 FunctionHandler]: Unknown extern function console_unlock [2022-11-25 22:22:45,994 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:22:45,994 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-25 22:22:45,995 WARN L623 FunctionHandler]: Unknown extern function fb_set_suspend [2022-11-25 22:22:45,995 WARN L623 FunctionHandler]: Unknown extern function console_unlock [2022-11-25 22:22:46,002 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 22:22:46,008 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 22:22:46,182 WARN L623 FunctionHandler]: Unknown extern function cfb_copyarea [2022-11-25 22:22:46,183 WARN L623 FunctionHandler]: Unknown extern function svga_get_caps [2022-11-25 22:22:46,183 WARN L623 FunctionHandler]: Unknown extern function svga_get_tilemax [2022-11-25 22:22:46,187 WARN L623 FunctionHandler]: Unknown extern function svga_settile [2022-11-25 22:22:46,188 WARN L623 FunctionHandler]: Unknown extern function svga_tileblit [2022-11-25 22:22:46,189 WARN L623 FunctionHandler]: Unknown extern function svga_tilecopy [2022-11-25 22:22:46,190 WARN L623 FunctionHandler]: Unknown extern function svga_tilefill [2022-11-25 22:22:46,213 WARN L623 FunctionHandler]: Unknown extern function register_framebuffer [2022-11-25 22:22:46,214 WARN L623 FunctionHandler]: Unknown extern function unregister_framebuffer [2022-11-25 22:22:46,215 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-11-25 22:22:46,216 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-11-25 22:22:46,217 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-25 22:22:46,818 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 22:22:47,051 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:22:47,562 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[328297,328310] [2022-11-25 22:22:47,567 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[328442,328455] [2022-11-25 22:22:47,568 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[328588,328601] [2022-11-25 22:22:47,568 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[328753,328766] [2022-11-25 22:22:47,568 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[328911,328924] [2022-11-25 22:22:47,569 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[329069,329082] [2022-11-25 22:22:47,569 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[329227,329240] [2022-11-25 22:22:47,569 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[329387,329400] [2022-11-25 22:22:47,570 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[329546,329559] [2022-11-25 22:22:47,570 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[329685,329698] [2022-11-25 22:22:47,571 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[329827,329840] [2022-11-25 22:22:47,571 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[329976,329989] [2022-11-25 22:22:47,572 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[330115,330128] [2022-11-25 22:22:47,572 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[330270,330283] [2022-11-25 22:22:47,573 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[330430,330443] [2022-11-25 22:22:47,573 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[330581,330594] [2022-11-25 22:22:47,574 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[330732,330745] [2022-11-25 22:22:47,574 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[330884,330897] [2022-11-25 22:22:47,575 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[331033,331046] [2022-11-25 22:22:47,575 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[331181,331194] [2022-11-25 22:22:47,576 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[331338,331351] [2022-11-25 22:22:47,576 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[331487,331500] [2022-11-25 22:22:47,577 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[331643,331656] [2022-11-25 22:22:47,577 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[331796,331809] [2022-11-25 22:22:47,578 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[331942,331955] [2022-11-25 22:22:47,578 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[332085,332098] [2022-11-25 22:22:47,579 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[332237,332250] [2022-11-25 22:22:47,579 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[332383,332396] [2022-11-25 22:22:47,580 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[332528,332541] [2022-11-25 22:22:47,580 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[332682,332695] [2022-11-25 22:22:47,581 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[332833,332846] [2022-11-25 22:22:47,581 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[332988,333001] [2022-11-25 22:22:47,582 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[333140,333153] [2022-11-25 22:22:47,582 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[333295,333308] [2022-11-25 22:22:47,583 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[333459,333472] [2022-11-25 22:22:47,583 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[333615,333628] [2022-11-25 22:22:47,584 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[333779,333792] [2022-11-25 22:22:47,584 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[333921,333934] [2022-11-25 22:22:47,584 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[334079,334092] [2022-11-25 22:22:47,585 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[334246,334259] [2022-11-25 22:22:47,585 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[334405,334418] [2022-11-25 22:22:47,586 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[334564,334577] [2022-11-25 22:22:47,586 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[334713,334726] [2022-11-25 22:22:47,587 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[334860,334873] [2022-11-25 22:22:47,587 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[334999,335012] [2022-11-25 22:22:47,588 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[335162,335175] [2022-11-25 22:22:47,588 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[335328,335341] [2022-11-25 22:22:47,589 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[335492,335505] [2022-11-25 22:22:47,589 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[335657,335670] [2022-11-25 22:22:47,589 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[335822,335835] [2022-11-25 22:22:47,590 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[335988,336001] [2022-11-25 22:22:47,590 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[336153,336166] [2022-11-25 22:22:47,591 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[336320,336333] [2022-11-25 22:22:47,591 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[336480,336493] [2022-11-25 22:22:47,592 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[336642,336655] [2022-11-25 22:22:47,592 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[336801,336814] [2022-11-25 22:22:47,593 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[336947,336960] [2022-11-25 22:22:47,593 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[337090,337103] [2022-11-25 22:22:47,594 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[337234,337247] [2022-11-25 22:22:47,594 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[337377,337390] [2022-11-25 22:22:47,594 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[337521,337534] [2022-11-25 22:22:47,595 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[337662,337675] [2022-11-25 22:22:47,595 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[337800,337813] [2022-11-25 22:22:47,596 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[337958,337971] [2022-11-25 22:22:47,596 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[338117,338130] [2022-11-25 22:22:47,597 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[338273,338286] [2022-11-25 22:22:47,597 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[338422,338435] [2022-11-25 22:22:47,598 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[338574,338587] [2022-11-25 22:22:47,598 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[338725,338738] [2022-11-25 22:22:47,599 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[338874,338887] [2022-11-25 22:22:47,599 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[339026,339039] [2022-11-25 22:22:47,600 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[339174,339187] [2022-11-25 22:22:47,600 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[339327,339340] [2022-11-25 22:22:47,601 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[339478,339491] [2022-11-25 22:22:47,601 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[339628,339641] [2022-11-25 22:22:47,602 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[339775,339788] [2022-11-25 22:22:47,602 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[339926,339939] [2022-11-25 22:22:47,603 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[340077,340090] [2022-11-25 22:22:47,603 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[340225,340238] [2022-11-25 22:22:47,604 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[340391,340404] [2022-11-25 22:22:47,604 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[340560,340573] [2022-11-25 22:22:47,605 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[340727,340740] [2022-11-25 22:22:47,605 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[340895,340908] [2022-11-25 22:22:47,606 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[341045,341058] [2022-11-25 22:22:47,606 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[341192,341205] [2022-11-25 22:22:47,606 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[341353,341366] [2022-11-25 22:22:47,607 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[341523,341536] [2022-11-25 22:22:47,607 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[341685,341698] [2022-11-25 22:22:47,613 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:22:47,655 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:22:47,776 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_word [2022-11-25 22:22:47,853 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 22:22:47,857 WARN L623 FunctionHandler]: Unknown extern function i2c_bit_add_bus [2022-11-25 22:22:47,859 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:22:47,862 WARN L623 FunctionHandler]: Unknown extern function svga_tilecursor [2022-11-25 22:22:47,959 WARN L623 FunctionHandler]: Unknown extern function cfb_imageblit [2022-11-25 22:22:47,960 WARN L623 FunctionHandler]: Unknown extern function cfb_fillrect [2022-11-25 22:22:47,961 WARN L623 FunctionHandler]: Unknown extern function svga_compute_pll [2022-11-25 22:22:47,962 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:22:47,965 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 22:22:47,967 WARN L623 FunctionHandler]: Unknown extern function save_vga [2022-11-25 22:22:47,968 WARN L623 FunctionHandler]: Unknown extern function restore_vga [2022-11-25 22:22:47,969 WARN L623 FunctionHandler]: Unknown extern function svga_match_format [2022-11-25 22:22:47,970 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:22:47,975 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:22:47,975 WARN L623 FunctionHandler]: Unknown extern function svga_check_timings [2022-11-25 22:22:47,976 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:22:47,977 WARN L623 FunctionHandler]: Unknown extern function svga_compute_pll [2022-11-25 22:22:47,977 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:22:47,982 WARN L623 FunctionHandler]: Unknown extern function svga_set_default_gfx_regs [2022-11-25 22:22:47,982 WARN L623 FunctionHandler]: Unknown extern function svga_set_default_atc_regs [2022-11-25 22:22:47,983 WARN L623 FunctionHandler]: Unknown extern function svga_set_default_seq_regs [2022-11-25 22:22:47,983 WARN L623 FunctionHandler]: Unknown extern function svga_set_default_crt_regs [2022-11-25 22:22:47,983 WARN L623 FunctionHandler]: Unknown extern function svga_wcrt_multi [2022-11-25 22:22:47,984 WARN L623 FunctionHandler]: Unknown extern function svga_wcrt_multi [2022-11-25 22:22:47,989 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 22:22:47,989 WARN L623 FunctionHandler]: Unknown extern function svga_wcrt_multi [2022-11-25 22:22:47,992 WARN L623 FunctionHandler]: Unknown extern function svga_match_format [2022-11-25 22:22:47,993 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 22:22:47,998 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 22:22:47,998 WARN L623 FunctionHandler]: Unknown extern function svga_set_textmode_vga_regs [2022-11-25 22:22:48,000 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 22:22:48,003 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 22:22:48,006 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 22:22:48,009 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 22:22:48,017 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 22:22:48,020 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 22:22:48,023 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 22:22:48,029 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 22:22:48,029 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:22:48,032 WARN L623 FunctionHandler]: Unknown extern function svga_set_timings [2022-11-25 22:22:48,034 WARN L623 FunctionHandler]: Unknown extern function svga_wcrt_multi [2022-11-25 22:22:48,045 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 22:22:48,047 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 22:22:48,049 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 22:22:48,054 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 22:22:48,055 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 22:22:48,057 WARN L623 FunctionHandler]: Unknown extern function svga_wcrt_multi [2022-11-25 22:22:48,063 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 22:22:48,064 WARN L623 FunctionHandler]: Unknown extern function framebuffer_alloc [2022-11-25 22:22:48,064 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:22:48,065 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-11-25 22:22:48,066 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-11-25 22:22:48,066 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:22:48,067 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-11-25 22:22:48,068 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:22:48,070 WARN L623 FunctionHandler]: Unknown extern function pci_iomap [2022-11-25 22:22:48,071 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:22:48,074 WARN L623 FunctionHandler]: Unknown extern function pcibios_bus_to_resource [2022-11-25 22:22:48,088 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:22:48,091 WARN L623 FunctionHandler]: Unknown extern function fb_ddc_read [2022-11-25 22:22:48,091 WARN L623 FunctionHandler]: Unknown extern function fb_edid_to_monspecs [2022-11-25 22:22:48,092 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:22:48,093 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:22:48,094 WARN L623 FunctionHandler]: Unknown extern function fb_videomode_to_modelist [2022-11-25 22:22:48,097 WARN L623 FunctionHandler]: Unknown extern function fb_find_best_display [2022-11-25 22:22:48,098 WARN L623 FunctionHandler]: Unknown extern function fb_videomode_to_var [2022-11-25 22:22:48,099 WARN L623 FunctionHandler]: Unknown extern function fb_find_mode [2022-11-25 22:22:48,111 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:22:48,112 WARN L623 FunctionHandler]: Unknown extern function fb_destroy_modedb [2022-11-25 22:22:48,112 WARN L623 FunctionHandler]: Unknown extern function fb_destroy_modedb [2022-11-25 22:22:48,113 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:22:48,114 WARN L623 FunctionHandler]: Unknown extern function fb_alloc_cmap [2022-11-25 22:22:48,114 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:22:48,115 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:22:48,116 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:22:48,117 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:22:48,122 WARN L623 FunctionHandler]: Unknown extern function mtrr_add [2022-11-25 22:22:48,125 WARN L623 FunctionHandler]: Unknown extern function fb_dealloc_cmap [2022-11-25 22:22:48,126 WARN L623 FunctionHandler]: Unknown extern function i2c_del_adapter [2022-11-25 22:22:48,126 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-11-25 22:22:48,128 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-25 22:22:48,128 WARN L623 FunctionHandler]: Unknown extern function framebuffer_release [2022-11-25 22:22:48,134 WARN L623 FunctionHandler]: Unknown extern function mtrr_del [2022-11-25 22:22:48,135 WARN L623 FunctionHandler]: Unknown extern function fb_dealloc_cmap [2022-11-25 22:22:48,135 WARN L623 FunctionHandler]: Unknown extern function i2c_del_adapter [2022-11-25 22:22:48,136 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-11-25 22:22:48,136 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-25 22:22:48,136 WARN L623 FunctionHandler]: Unknown extern function framebuffer_release [2022-11-25 22:22:48,138 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 22:22:48,138 WARN L623 FunctionHandler]: Unknown extern function console_lock [2022-11-25 22:22:48,139 WARN L623 FunctionHandler]: Unknown extern function console_unlock [2022-11-25 22:22:48,139 WARN L623 FunctionHandler]: Unknown extern function fb_set_suspend [2022-11-25 22:22:48,139 WARN L623 FunctionHandler]: Unknown extern function pci_save_state [2022-11-25 22:22:48,140 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 22:22:48,140 WARN L623 FunctionHandler]: Unknown extern function pci_choose_state [2022-11-25 22:22:48,140 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-11-25 22:22:48,141 WARN L623 FunctionHandler]: Unknown extern function console_unlock [2022-11-25 22:22:48,142 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 22:22:48,143 WARN L623 FunctionHandler]: Unknown extern function console_lock [2022-11-25 22:22:48,143 WARN L623 FunctionHandler]: Unknown extern function console_unlock [2022-11-25 22:22:48,144 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-11-25 22:22:48,144 WARN L623 FunctionHandler]: Unknown extern function pci_restore_state [2022-11-25 22:22:48,144 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-11-25 22:22:48,145 WARN L623 FunctionHandler]: Unknown extern function console_unlock [2022-11-25 22:22:48,145 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:22:48,146 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-25 22:22:48,146 WARN L623 FunctionHandler]: Unknown extern function fb_set_suspend [2022-11-25 22:22:48,146 WARN L623 FunctionHandler]: Unknown extern function console_unlock [2022-11-25 22:22:48,153 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 22:22:48,155 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 22:22:48,159 WARN L623 FunctionHandler]: Unknown extern function cfb_copyarea [2022-11-25 22:22:48,159 WARN L623 FunctionHandler]: Unknown extern function svga_get_caps [2022-11-25 22:22:48,160 WARN L623 FunctionHandler]: Unknown extern function svga_get_tilemax [2022-11-25 22:22:48,161 WARN L623 FunctionHandler]: Unknown extern function svga_settile [2022-11-25 22:22:48,162 WARN L623 FunctionHandler]: Unknown extern function svga_tileblit [2022-11-25 22:22:48,162 WARN L623 FunctionHandler]: Unknown extern function svga_tilecopy [2022-11-25 22:22:48,163 WARN L623 FunctionHandler]: Unknown extern function svga_tilefill [2022-11-25 22:22:48,175 WARN L623 FunctionHandler]: Unknown extern function register_framebuffer [2022-11-25 22:22:48,176 WARN L623 FunctionHandler]: Unknown extern function unregister_framebuffer [2022-11-25 22:22:48,177 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-11-25 22:22:48,177 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-11-25 22:22:48,179 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-25 22:22:48,198 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 22:22:48,208 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:22:48,238 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[328297,328310] [2022-11-25 22:22:48,239 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[328442,328455] [2022-11-25 22:22:48,239 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[328588,328601] [2022-11-25 22:22:48,240 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[328753,328766] [2022-11-25 22:22:48,240 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[328911,328924] [2022-11-25 22:22:48,241 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[329069,329082] [2022-11-25 22:22:48,241 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[329227,329240] [2022-11-25 22:22:48,242 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[329387,329400] [2022-11-25 22:22:48,242 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[329546,329559] [2022-11-25 22:22:48,243 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[329685,329698] [2022-11-25 22:22:48,243 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[329827,329840] [2022-11-25 22:22:48,244 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[329976,329989] [2022-11-25 22:22:48,244 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[330115,330128] [2022-11-25 22:22:48,245 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[330270,330283] [2022-11-25 22:22:48,245 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[330430,330443] [2022-11-25 22:22:48,246 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[330581,330594] [2022-11-25 22:22:48,246 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[330732,330745] [2022-11-25 22:22:48,247 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[330884,330897] [2022-11-25 22:22:48,247 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[331033,331046] [2022-11-25 22:22:48,247 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[331181,331194] [2022-11-25 22:22:48,248 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[331338,331351] [2022-11-25 22:22:48,248 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[331487,331500] [2022-11-25 22:22:48,249 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[331643,331656] [2022-11-25 22:22:48,249 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[331796,331809] [2022-11-25 22:22:48,250 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[331942,331955] [2022-11-25 22:22:48,250 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[332085,332098] [2022-11-25 22:22:48,251 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[332237,332250] [2022-11-25 22:22:48,251 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[332383,332396] [2022-11-25 22:22:48,252 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[332528,332541] [2022-11-25 22:22:48,252 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[332682,332695] [2022-11-25 22:22:48,253 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[332833,332846] [2022-11-25 22:22:48,253 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[332988,333001] [2022-11-25 22:22:48,254 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[333140,333153] [2022-11-25 22:22:48,254 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[333295,333308] [2022-11-25 22:22:48,255 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[333459,333472] [2022-11-25 22:22:48,255 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[333615,333628] [2022-11-25 22:22:48,255 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[333779,333792] [2022-11-25 22:22:48,256 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[333921,333934] [2022-11-25 22:22:48,256 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[334079,334092] [2022-11-25 22:22:48,257 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[334246,334259] [2022-11-25 22:22:48,257 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[334405,334418] [2022-11-25 22:22:48,258 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[334564,334577] [2022-11-25 22:22:48,258 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[334713,334726] [2022-11-25 22:22:48,259 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[334860,334873] [2022-11-25 22:22:48,259 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[334999,335012] [2022-11-25 22:22:48,260 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[335162,335175] [2022-11-25 22:22:48,260 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[335328,335341] [2022-11-25 22:22:48,261 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[335492,335505] [2022-11-25 22:22:48,261 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[335657,335670] [2022-11-25 22:22:48,262 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[335822,335835] [2022-11-25 22:22:48,262 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[335988,336001] [2022-11-25 22:22:48,263 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[336153,336166] [2022-11-25 22:22:48,263 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[336320,336333] [2022-11-25 22:22:48,264 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[336480,336493] [2022-11-25 22:22:48,264 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[336642,336655] [2022-11-25 22:22:48,265 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[336801,336814] [2022-11-25 22:22:48,265 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[336947,336960] [2022-11-25 22:22:48,266 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[337090,337103] [2022-11-25 22:22:48,266 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[337234,337247] [2022-11-25 22:22:48,267 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[337377,337390] [2022-11-25 22:22:48,267 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[337521,337534] [2022-11-25 22:22:48,268 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[337662,337675] [2022-11-25 22:22:48,268 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[337800,337813] [2022-11-25 22:22:48,268 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[337958,337971] [2022-11-25 22:22:48,269 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[338117,338130] [2022-11-25 22:22:48,269 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[338273,338286] [2022-11-25 22:22:48,270 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[338422,338435] [2022-11-25 22:22:48,270 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[338574,338587] [2022-11-25 22:22:48,271 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[338725,338738] [2022-11-25 22:22:48,271 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[338874,338887] [2022-11-25 22:22:48,272 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[339026,339039] [2022-11-25 22:22:48,272 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[339174,339187] [2022-11-25 22:22:48,273 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[339327,339340] [2022-11-25 22:22:48,273 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[339478,339491] [2022-11-25 22:22:48,274 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[339628,339641] [2022-11-25 22:22:48,279 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[339775,339788] [2022-11-25 22:22:48,279 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[339926,339939] [2022-11-25 22:22:48,280 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[340077,340090] [2022-11-25 22:22:48,281 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[340225,340238] [2022-11-25 22:22:48,282 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[340391,340404] [2022-11-25 22:22:48,283 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[340560,340573] [2022-11-25 22:22:48,284 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[340727,340740] [2022-11-25 22:22:48,284 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[340895,340908] [2022-11-25 22:22:48,285 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[341045,341058] [2022-11-25 22:22:48,285 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[341192,341205] [2022-11-25 22:22:48,286 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[341353,341366] [2022-11-25 22:22:48,288 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[341523,341536] [2022-11-25 22:22:48,288 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[341685,341698] [2022-11-25 22:22:48,295 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:22:48,622 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:22:48,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:22:48 WrapperNode [2022-11-25 22:22:48,623 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:22:48,625 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:22:48,625 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:22:48,625 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:22:48,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:22:48" (1/1) ... [2022-11-25 22:22:48,751 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:22:48" (1/1) ... [2022-11-25 22:22:50,866 INFO L138 Inliner]: procedures = 583, calls = 2565, calls flagged for inlining = 277, calls inlined = 189, statements flattened = 5161 [2022-11-25 22:22:50,866 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:22:50,867 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:22:50,867 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:22:50,867 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:22:50,878 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:22:48" (1/1) ... [2022-11-25 22:22:50,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:22:48" (1/1) ... [2022-11-25 22:22:51,687 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:22:48" (1/1) ... [2022-11-25 22:22:51,698 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:22:48" (1/1) ... [2022-11-25 22:22:52,849 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:22:48" (1/1) ... [2022-11-25 22:22:53,053 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:22:48" (1/1) ... [2022-11-25 22:22:53,184 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:22:48" (1/1) ... [2022-11-25 22:22:53,282 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:22:48" (1/1) ... [2022-11-25 22:22:53,747 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:22:53,748 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:22:53,748 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:22:53,748 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:22:53,749 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:22:48" (1/1) ... [2022-11-25 22:22:53,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:22:53,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:22:53,786 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:22:53,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:22:53,834 INFO L130 BoogieDeclarations]: Found specification of procedure svga_wcrt_mask [2022-11-25 22:22:53,834 INFO L138 BoogieDeclarations]: Found implementation of procedure svga_wcrt_mask [2022-11-25 22:22:53,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-11-25 22:22:53,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-11-25 22:22:53,835 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-25 22:22:53,835 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-25 22:22:53,835 INFO L130 BoogieDeclarations]: Found specification of procedure s3fb_ddc_needs_mmio [2022-11-25 22:22:53,835 INFO L138 BoogieDeclarations]: Found implementation of procedure s3fb_ddc_needs_mmio [2022-11-25 22:22:53,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-25 22:22:53,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-25 22:22:53,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-25 22:22:53,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-25 22:22:53,836 INFO L130 BoogieDeclarations]: Found specification of procedure s3fb_ddc_read [2022-11-25 22:22:53,836 INFO L138 BoogieDeclarations]: Found implementation of procedure s3fb_ddc_read [2022-11-25 22:22:53,837 INFO L130 BoogieDeclarations]: Found specification of procedure s3fb_set_par [2022-11-25 22:22:53,837 INFO L138 BoogieDeclarations]: Found implementation of procedure s3fb_set_par [2022-11-25 22:22:53,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-11-25 22:22:53,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-11-25 22:22:53,837 INFO L130 BoogieDeclarations]: Found specification of procedure svga_compute_pll [2022-11-25 22:22:53,837 INFO L138 BoogieDeclarations]: Found implementation of procedure svga_compute_pll [2022-11-25 22:22:53,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-11-25 22:22:53,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-11-25 22:22:53,838 INFO L130 BoogieDeclarations]: Found specification of procedure vga_wcrt [2022-11-25 22:22:53,838 INFO L138 BoogieDeclarations]: Found implementation of procedure vga_wcrt [2022-11-25 22:22:53,838 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-25 22:22:53,838 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-25 22:22:53,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-25 22:22:53,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-25 22:22:53,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-25 22:22:53,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-25 22:22:53,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-11-25 22:22:53,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-11-25 22:22:53,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:22:53,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-11-25 22:22:53,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-11-25 22:22:53,840 INFO L130 BoogieDeclarations]: Found specification of procedure vga_rseq [2022-11-25 22:22:53,840 INFO L138 BoogieDeclarations]: Found implementation of procedure vga_rseq [2022-11-25 22:22:53,840 INFO L130 BoogieDeclarations]: Found specification of procedure svga_match_format [2022-11-25 22:22:53,840 INFO L138 BoogieDeclarations]: Found implementation of procedure svga_match_format [2022-11-25 22:22:53,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 22:22:53,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-25 22:22:53,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-25 22:22:53,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-25 22:22:53,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-25 22:22:53,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 22:22:53,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-11-25 22:22:53,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-11-25 22:22:53,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-11-25 22:22:53,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-11-25 22:22:53,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-25 22:22:53,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-25 22:22:53,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-11-25 22:22:53,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-11-25 22:22:53,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-25 22:22:53,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-25 22:22:53,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_open_lock_of_s3fb_info [2022-11-25 22:22:53,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_open_lock_of_s3fb_info [2022-11-25 22:22:53,844 INFO L130 BoogieDeclarations]: Found specification of procedure vga_w [2022-11-25 22:22:53,844 INFO L138 BoogieDeclarations]: Found implementation of procedure vga_w [2022-11-25 22:22:53,844 INFO L130 BoogieDeclarations]: Found specification of procedure vga_r [2022-11-25 22:22:53,845 INFO L138 BoogieDeclarations]: Found implementation of procedure vga_r [2022-11-25 22:22:53,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 22:22:53,845 INFO L130 BoogieDeclarations]: Found specification of procedure svga_wseq_mask [2022-11-25 22:22:53,845 INFO L138 BoogieDeclarations]: Found implementation of procedure svga_wseq_mask [2022-11-25 22:22:53,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:22:53,845 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-25 22:22:53,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-25 22:22:53,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 22:22:53,846 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-25 22:22:53,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-25 22:22:53,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_open_lock_of_s3fb_info [2022-11-25 22:22:53,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_open_lock_of_s3fb_info [2022-11-25 22:22:53,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-11-25 22:22:53,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-11-25 22:22:53,847 INFO L130 BoogieDeclarations]: Found specification of procedure vga_w_fast [2022-11-25 22:22:53,847 INFO L138 BoogieDeclarations]: Found implementation of procedure vga_w_fast [2022-11-25 22:22:53,847 INFO L130 BoogieDeclarations]: Found specification of procedure svga_get_tilemax [2022-11-25 22:22:53,847 INFO L138 BoogieDeclarations]: Found implementation of procedure svga_get_tilemax [2022-11-25 22:22:53,847 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_del_adapter [2022-11-25 22:22:53,848 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_del_adapter [2022-11-25 22:22:53,848 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2022-11-25 22:22:53,848 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2022-11-25 22:22:53,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:22:53,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:22:53,848 INFO L130 BoogieDeclarations]: Found specification of procedure svga_wcrt_multi [2022-11-25 22:22:53,849 INFO L138 BoogieDeclarations]: Found implementation of procedure svga_wcrt_multi [2022-11-25 22:22:53,849 INFO L130 BoogieDeclarations]: Found specification of procedure fb_set_suspend [2022-11-25 22:22:53,849 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_set_suspend [2022-11-25 22:22:53,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-25 22:22:53,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-25 22:22:53,849 INFO L130 BoogieDeclarations]: Found specification of procedure vga_rcrt [2022-11-25 22:22:53,849 INFO L138 BoogieDeclarations]: Found implementation of procedure vga_rcrt [2022-11-25 22:22:53,850 INFO L130 BoogieDeclarations]: Found specification of procedure framebuffer_release [2022-11-25 22:22:53,850 INFO L138 BoogieDeclarations]: Found implementation of procedure framebuffer_release [2022-11-25 22:22:53,850 INFO L130 BoogieDeclarations]: Found specification of procedure slow_down_io [2022-11-25 22:22:53,850 INFO L138 BoogieDeclarations]: Found implementation of procedure slow_down_io [2022-11-25 22:22:53,850 INFO L130 BoogieDeclarations]: Found specification of procedure s3_pci_remove [2022-11-25 22:22:53,850 INFO L138 BoogieDeclarations]: Found implementation of procedure s3_pci_remove [2022-11-25 22:22:53,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-25 22:22:53,851 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-25 22:22:53,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_io_mem_unmap [2022-11-25 22:22:53,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_io_mem_unmap [2022-11-25 22:22:53,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-11-25 22:22:53,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-11-25 22:22:53,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-11-25 22:22:53,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-11-25 22:22:53,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:22:53,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-25 22:22:53,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-25 22:22:53,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 22:22:53,852 INFO L130 BoogieDeclarations]: Found specification of procedure fb_dealloc_cmap [2022-11-25 22:22:53,853 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_dealloc_cmap [2022-11-25 22:22:53,853 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-11-25 22:22:53,853 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-11-25 22:22:53,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 22:22:53,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-25 22:22:53,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-25 22:22:53,854 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-25 22:22:53,854 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-25 22:22:53,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-25 22:22:53,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-25 22:22:53,855 INFO L130 BoogieDeclarations]: Found specification of procedure vga_wseq [2022-11-25 22:22:53,855 INFO L138 BoogieDeclarations]: Found implementation of procedure vga_wseq [2022-11-25 22:22:53,855 INFO L130 BoogieDeclarations]: Found specification of procedure s3_pci_resume [2022-11-25 22:22:53,855 INFO L138 BoogieDeclarations]: Found implementation of procedure s3_pci_resume [2022-11-25 22:22:53,856 INFO L130 BoogieDeclarations]: Found specification of procedure fb_destroy_modedb [2022-11-25 22:22:53,856 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_destroy_modedb [2022-11-25 22:22:53,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-25 22:22:53,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-25 22:22:53,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-25 22:22:53,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-25 22:22:53,857 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-11-25 22:22:53,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-11-25 22:22:53,857 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-25 22:22:53,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-25 22:22:53,857 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-25 22:22:53,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-25 22:22:53,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 22:22:53,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-25 22:22:53,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-25 22:22:53,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-25 22:22:53,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-25 22:22:53,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-25 22:22:53,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-25 22:22:53,859 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-25 22:22:53,859 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-25 22:22:53,859 INFO L130 BoogieDeclarations]: Found specification of procedure console_lock [2022-11-25 22:22:53,859 INFO L138 BoogieDeclarations]: Found implementation of procedure console_lock [2022-11-25 22:22:53,859 INFO L130 BoogieDeclarations]: Found specification of procedure console_unlock [2022-11-25 22:22:53,859 INFO L138 BoogieDeclarations]: Found implementation of procedure console_unlock [2022-11-25 22:22:53,860 INFO L130 BoogieDeclarations]: Found specification of procedure expand_color [2022-11-25 22:22:53,860 INFO L138 BoogieDeclarations]: Found implementation of procedure expand_color [2022-11-25 22:22:53,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-25 22:22:53,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-25 22:22:53,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-25 22:22:53,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-25 22:22:53,860 INFO L130 BoogieDeclarations]: Found specification of procedure __writel [2022-11-25 22:22:53,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __writel [2022-11-25 22:22:53,861 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-25 22:22:53,861 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-25 22:22:53,861 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-25 22:22:53,861 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-25 22:22:53,861 INFO L130 BoogieDeclarations]: Found specification of procedure s3fb_check_var [2022-11-25 22:22:53,861 INFO L138 BoogieDeclarations]: Found implementation of procedure s3fb_check_var [2022-11-25 22:22:53,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:22:53,862 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2022-11-25 22:22:53,862 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2022-11-25 22:22:54,684 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:22:54,688 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:22:54,852 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-25 22:26:39,188 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:30:04,618 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:30:04,618 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 22:30:04,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:30:04 BoogieIcfgContainer [2022-11-25 22:30:04,623 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:30:04,626 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:30:04,626 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:30:04,629 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:30:04,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:22:43" (1/3) ... [2022-11-25 22:30:04,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12ee44e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:30:04, skipping insertion in model container [2022-11-25 22:30:04,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:22:48" (2/3) ... [2022-11-25 22:30:04,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12ee44e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:30:04, skipping insertion in model container [2022-11-25 22:30:04,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:30:04" (3/3) ... [2022-11-25 22:30:04,637 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i [2022-11-25 22:30:04,660 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:30:04,660 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2022-11-25 22:30:04,759 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:30:04,773 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@32fb8436, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:30:04,774 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2022-11-25 22:30:04,785 INFO L276 IsEmpty]: Start isEmpty. Operand has 1072 states, 631 states have (on average 1.3201267828843106) internal successors, (833), 671 states have internal predecessors, (833), 338 states have call successors, (338), 77 states have call predecessors, (338), 76 states have return successors, (334), 332 states have call predecessors, (334), 334 states have call successors, (334) [2022-11-25 22:30:04,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-25 22:30:04,799 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:30:04,800 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 22:30:04,801 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2022-11-25 22:30:04,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:30:04,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1006553940, now seen corresponding path program 1 times [2022-11-25 22:30:04,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:30:04,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758091039] [2022-11-25 22:30:04,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:30:04,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:30:05,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:30:06,320 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-25 22:30:06,320 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:30:06,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758091039] [2022-11-25 22:30:06,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758091039] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:30:06,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:30:06,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:30:06,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874999439] [2022-11-25 22:30:06,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:30:06,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:30:06,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:30:06,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:30:06,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:30:06,391 INFO L87 Difference]: Start difference. First operand has 1072 states, 631 states have (on average 1.3201267828843106) internal successors, (833), 671 states have internal predecessors, (833), 338 states have call successors, (338), 77 states have call predecessors, (338), 76 states have return successors, (334), 332 states have call predecessors, (334), 334 states have call successors, (334) Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-25 22:30:09,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:30:13,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:30:13,900 INFO L93 Difference]: Finished difference Result 2919 states and 4196 transitions. [2022-11-25 22:30:13,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:30:13,903 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 51 [2022-11-25 22:30:13,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:30:13,929 INFO L225 Difference]: With dead ends: 2919 [2022-11-25 22:30:13,929 INFO L226 Difference]: Without dead ends: 1850 [2022-11-25 22:30:13,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:30:13,946 INFO L413 NwaCegarLoop]: 1507 mSDtfsCounter, 1071 mSDsluCounter, 2748 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1076 SdHoareTripleChecker+Valid, 4255 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:30:13,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1076 Valid, 4255 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 644 Invalid, 1 Unknown, 0 Unchecked, 7.2s Time] [2022-11-25 22:30:13,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1850 states. [2022-11-25 22:30:14,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1850 to 1679. [2022-11-25 22:30:14,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1679 states, 1005 states have (on average 1.2885572139303483) internal successors, (1295), 1057 states have internal predecessors, (1295), 518 states have call successors, (518), 131 states have call predecessors, (518), 130 states have return successors, (519), 509 states have call predecessors, (519), 516 states have call successors, (519) [2022-11-25 22:30:14,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1679 states to 1679 states and 2332 transitions. [2022-11-25 22:30:14,186 INFO L78 Accepts]: Start accepts. Automaton has 1679 states and 2332 transitions. Word has length 51 [2022-11-25 22:30:14,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:30:14,188 INFO L495 AbstractCegarLoop]: Abstraction has 1679 states and 2332 transitions. [2022-11-25 22:30:14,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-25 22:30:14,188 INFO L276 IsEmpty]: Start isEmpty. Operand 1679 states and 2332 transitions. [2022-11-25 22:30:14,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-25 22:30:14,191 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:30:14,192 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 22:30:14,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 22:30:14,192 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2022-11-25 22:30:14,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:30:14,193 INFO L85 PathProgramCache]: Analyzing trace with hash 519604731, now seen corresponding path program 1 times [2022-11-25 22:30:14,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:30:14,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615223278] [2022-11-25 22:30:14,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:30:14,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:30:14,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:30:14,986 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-25 22:30:14,987 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:30:14,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615223278] [2022-11-25 22:30:14,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615223278] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:30:14,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:30:14,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:30:14,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833020503] [2022-11-25 22:30:14,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:30:14,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:30:14,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:30:14,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:30:14,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:30:14,990 INFO L87 Difference]: Start difference. First operand 1679 states and 2332 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 22:30:17,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:30:21,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:30:23,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:30:24,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:30:24,081 INFO L93 Difference]: Finished difference Result 1747 states and 2400 transitions. [2022-11-25 22:30:24,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:30:24,081 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 56 [2022-11-25 22:30:24,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:30:24,094 INFO L225 Difference]: With dead ends: 1747 [2022-11-25 22:30:24,095 INFO L226 Difference]: Without dead ends: 1745 [2022-11-25 22:30:24,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:30:24,098 INFO L413 NwaCegarLoop]: 1274 mSDtfsCounter, 1065 mSDsluCounter, 1662 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1070 SdHoareTripleChecker+Valid, 2936 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2022-11-25 22:30:24,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1070 Valid, 2936 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 463 Invalid, 2 Unknown, 0 Unchecked, 8.9s Time] [2022-11-25 22:30:24,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1745 states. [2022-11-25 22:30:24,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1745 to 1745. [2022-11-25 22:30:24,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1745 states, 1039 states have (on average 1.2810394610202118) internal successors, (1331), 1090 states have internal predecessors, (1331), 533 states have call successors, (533), 149 states have call predecessors, (533), 148 states have return successors, (534), 524 states have call predecessors, (534), 531 states have call successors, (534) [2022-11-25 22:30:24,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1745 states to 1745 states and 2398 transitions. [2022-11-25 22:30:24,200 INFO L78 Accepts]: Start accepts. Automaton has 1745 states and 2398 transitions. Word has length 56 [2022-11-25 22:30:24,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:30:24,200 INFO L495 AbstractCegarLoop]: Abstraction has 1745 states and 2398 transitions. [2022-11-25 22:30:24,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 22:30:24,201 INFO L276 IsEmpty]: Start isEmpty. Operand 1745 states and 2398 transitions. [2022-11-25 22:30:24,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-25 22:30:24,203 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:30:24,203 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 22:30:24,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 22:30:24,204 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2022-11-25 22:30:24,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:30:24,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1613830560, now seen corresponding path program 1 times [2022-11-25 22:30:24,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:30:24,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657632602] [2022-11-25 22:30:24,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:30:24,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:30:24,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:30:24,857 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-25 22:30:24,858 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:30:24,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657632602] [2022-11-25 22:30:24,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657632602] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:30:24,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:30:24,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:30:24,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820043872] [2022-11-25 22:30:24,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:30:24,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:30:24,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:30:24,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:30:24,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:30:24,861 INFO L87 Difference]: Start difference. First operand 1745 states and 2398 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 22:30:27,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:30:31,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:30:31,727 INFO L93 Difference]: Finished difference Result 1745 states and 2398 transitions. [2022-11-25 22:30:31,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:30:31,727 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 61 [2022-11-25 22:30:31,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:30:31,739 INFO L225 Difference]: With dead ends: 1745 [2022-11-25 22:30:31,739 INFO L226 Difference]: Without dead ends: 1743 [2022-11-25 22:30:31,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:30:31,742 INFO L413 NwaCegarLoop]: 1272 mSDtfsCounter, 1062 mSDsluCounter, 1660 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1067 SdHoareTripleChecker+Valid, 2932 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-11-25 22:30:31,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1067 Valid, 2932 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-11-25 22:30:31,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1743 states. [2022-11-25 22:30:31,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1743 to 1743. [2022-11-25 22:30:31,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1743 states, 1038 states have (on average 1.2803468208092486) internal successors, (1329), 1088 states have internal predecessors, (1329), 533 states have call successors, (533), 149 states have call predecessors, (533), 148 states have return successors, (534), 524 states have call predecessors, (534), 531 states have call successors, (534) [2022-11-25 22:30:31,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1743 states to 1743 states and 2396 transitions. [2022-11-25 22:30:31,858 INFO L78 Accepts]: Start accepts. Automaton has 1743 states and 2396 transitions. Word has length 61 [2022-11-25 22:30:31,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:30:31,859 INFO L495 AbstractCegarLoop]: Abstraction has 1743 states and 2396 transitions. [2022-11-25 22:30:31,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 22:30:31,859 INFO L276 IsEmpty]: Start isEmpty. Operand 1743 states and 2396 transitions. [2022-11-25 22:30:31,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-25 22:30:31,861 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:30:31,861 INFO L195 NwaCegarLoop]: trace histogram [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, 1] [2022-11-25 22:30:31,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 22:30:31,862 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2022-11-25 22:30:31,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:30:31,862 INFO L85 PathProgramCache]: Analyzing trace with hash 164218803, now seen corresponding path program 1 times [2022-11-25 22:30:31,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:30:31,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25598309] [2022-11-25 22:30:31,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:30:31,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:30:31,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:30:32,461 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-25 22:30:32,462 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:30:32,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25598309] [2022-11-25 22:30:32,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25598309] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:30:32,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:30:32,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:30:32,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819652867] [2022-11-25 22:30:32,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:30:32,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:30:32,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:30:32,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:30:32,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:30:32,464 INFO L87 Difference]: Start difference. First operand 1743 states and 2396 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 22:30:35,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:30:37,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:30:37,591 INFO L93 Difference]: Finished difference Result 1743 states and 2396 transitions. [2022-11-25 22:30:37,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:30:37,592 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 66 [2022-11-25 22:30:37,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:30:37,603 INFO L225 Difference]: With dead ends: 1743 [2022-11-25 22:30:37,603 INFO L226 Difference]: Without dead ends: 1741 [2022-11-25 22:30:37,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:30:37,606 INFO L413 NwaCegarLoop]: 1270 mSDtfsCounter, 1059 mSDsluCounter, 1658 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1064 SdHoareTripleChecker+Valid, 2928 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:30:37,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1064 Valid, 2928 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-11-25 22:30:37,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1741 states. [2022-11-25 22:30:37,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1741 to 1741. [2022-11-25 22:30:37,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1741 states, 1037 states have (on average 1.279652844744455) internal successors, (1327), 1086 states have internal predecessors, (1327), 533 states have call successors, (533), 149 states have call predecessors, (533), 148 states have return successors, (534), 524 states have call predecessors, (534), 531 states have call successors, (534) [2022-11-25 22:30:37,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1741 states to 1741 states and 2394 transitions. [2022-11-25 22:30:37,724 INFO L78 Accepts]: Start accepts. Automaton has 1741 states and 2394 transitions. Word has length 66 [2022-11-25 22:30:37,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:30:37,725 INFO L495 AbstractCegarLoop]: Abstraction has 1741 states and 2394 transitions. [2022-11-25 22:30:37,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 22:30:37,725 INFO L276 IsEmpty]: Start isEmpty. Operand 1741 states and 2394 transitions. [2022-11-25 22:30:37,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-25 22:30:37,727 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:30:37,727 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2022-11-25 22:30:37,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 22:30:37,727 INFO L420 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_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2022-11-25 22:30:37,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:30:37,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1609445268, now seen corresponding path program 1 times [2022-11-25 22:30:37,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:30:37,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232335894] [2022-11-25 22:30:37,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:30:37,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:30:37,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:30:38,299 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-25 22:30:38,299 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:30:38,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232335894] [2022-11-25 22:30:38,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232335894] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:30:38,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:30:38,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:30:38,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37764898] [2022-11-25 22:30:38,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:30:38,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:30:38,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:30:38,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:30:38,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:30:38,303 INFO L87 Difference]: Start difference. First operand 1741 states and 2394 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-25 22:30:40,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:30:43,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:30:43,982 INFO L93 Difference]: Finished difference Result 1741 states and 2394 transitions. [2022-11-25 22:30:43,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:30:43,983 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 71 [2022-11-25 22:30:43,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:30:43,994 INFO L225 Difference]: With dead ends: 1741 [2022-11-25 22:30:43,994 INFO L226 Difference]: Without dead ends: 1739 [2022-11-25 22:30:43,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:30:43,997 INFO L413 NwaCegarLoop]: 1268 mSDtfsCounter, 1056 mSDsluCounter, 1656 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1061 SdHoareTripleChecker+Valid, 2924 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-25 22:30:43,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1061 Valid, 2924 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-11-25 22:30:44,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1739 states. [2022-11-25 22:30:44,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1739 to 1739. [2022-11-25 22:30:44,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1739 states, 1036 states have (on average 1.278957528957529) internal successors, (1325), 1084 states have internal predecessors, (1325), 533 states have call successors, (533), 149 states have call predecessors, (533), 148 states have return successors, (534), 524 states have call predecessors, (534), 531 states have call successors, (534) [2022-11-25 22:30:44,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1739 states to 1739 states and 2392 transitions. [2022-11-25 22:30:44,117 INFO L78 Accepts]: Start accepts. Automaton has 1739 states and 2392 transitions. Word has length 71 [2022-11-25 22:30:44,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:30:44,118 INFO L495 AbstractCegarLoop]: Abstraction has 1739 states and 2392 transitions. [2022-11-25 22:30:44,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-25 22:30:44,118 INFO L276 IsEmpty]: Start isEmpty. Operand 1739 states and 2392 transitions. [2022-11-25 22:30:44,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-25 22:30:44,120 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:30:44,120 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:30:44,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 22:30:44,121 INFO L420 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_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2022-11-25 22:30:44,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:30:44,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1235617886, now seen corresponding path program 1 times [2022-11-25 22:30:44,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:30:44,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131665005] [2022-11-25 22:30:44,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:30:44,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:30:44,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:30:44,681 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-25 22:30:44,681 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:30:44,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131665005] [2022-11-25 22:30:44,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131665005] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:30:44,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:30:44,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:30:44,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404184311] [2022-11-25 22:30:44,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:30:44,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:30:44,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:30:44,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:30:44,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:30:44,684 INFO L87 Difference]: Start difference. First operand 1739 states and 2392 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-25 22:30:47,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:30:50,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:30:50,208 INFO L93 Difference]: Finished difference Result 1739 states and 2392 transitions. [2022-11-25 22:30:50,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:30:50,211 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 76 [2022-11-25 22:30:50,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:30:50,225 INFO L225 Difference]: With dead ends: 1739 [2022-11-25 22:30:50,225 INFO L226 Difference]: Without dead ends: 1737 [2022-11-25 22:30:50,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:30:50,229 INFO L413 NwaCegarLoop]: 1266 mSDtfsCounter, 1053 mSDsluCounter, 1654 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1058 SdHoareTripleChecker+Valid, 2920 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-25 22:30:50,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1058 Valid, 2920 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-11-25 22:30:50,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1737 states. [2022-11-25 22:30:50,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1737 to 1737. [2022-11-25 22:30:50,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1737 states, 1035 states have (on average 1.2782608695652173) internal successors, (1323), 1082 states have internal predecessors, (1323), 533 states have call successors, (533), 149 states have call predecessors, (533), 148 states have return successors, (534), 524 states have call predecessors, (534), 531 states have call successors, (534) [2022-11-25 22:30:50,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1737 states to 1737 states and 2390 transitions. [2022-11-25 22:30:50,365 INFO L78 Accepts]: Start accepts. Automaton has 1737 states and 2390 transitions. Word has length 76 [2022-11-25 22:30:50,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:30:50,366 INFO L495 AbstractCegarLoop]: Abstraction has 1737 states and 2390 transitions. [2022-11-25 22:30:50,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-25 22:30:50,366 INFO L276 IsEmpty]: Start isEmpty. Operand 1737 states and 2390 transitions. [2022-11-25 22:30:50,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-25 22:30:50,369 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:30:50,369 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:30:50,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 22:30:50,370 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2022-11-25 22:30:50,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:30:50,370 INFO L85 PathProgramCache]: Analyzing trace with hash -884859947, now seen corresponding path program 1 times [2022-11-25 22:30:50,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:30:50,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029053320] [2022-11-25 22:30:50,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:30:50,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:30:50,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:30:50,829 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-25 22:30:50,829 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:30:50,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029053320] [2022-11-25 22:30:50,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029053320] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:30:50,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:30:50,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:30:50,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516134394] [2022-11-25 22:30:50,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:30:50,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:30:50,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:30:50,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:30:50,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:30:50,833 INFO L87 Difference]: Start difference. First operand 1737 states and 2390 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 22:30:53,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:30:55,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:30:55,413 INFO L93 Difference]: Finished difference Result 3448 states and 4742 transitions. [2022-11-25 22:30:55,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:30:55,414 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 89 [2022-11-25 22:30:55,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:30:55,425 INFO L225 Difference]: With dead ends: 3448 [2022-11-25 22:30:55,425 INFO L226 Difference]: Without dead ends: 1731 [2022-11-25 22:30:55,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:30:55,435 INFO L413 NwaCegarLoop]: 1262 mSDtfsCounter, 1068 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1071 SdHoareTripleChecker+Valid, 1650 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-25 22:30:55,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1071 Valid, 1650 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 256 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-11-25 22:30:55,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1731 states. [2022-11-25 22:30:55,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1731 to 1731. [2022-11-25 22:30:55,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1731 states, 1030 states have (on average 1.2757281553398059) internal successors, (1314), 1076 states have internal predecessors, (1314), 533 states have call successors, (533), 149 states have call predecessors, (533), 148 states have return successors, (534), 524 states have call predecessors, (534), 531 states have call successors, (534) [2022-11-25 22:30:55,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1731 states to 1731 states and 2381 transitions. [2022-11-25 22:30:55,573 INFO L78 Accepts]: Start accepts. Automaton has 1731 states and 2381 transitions. Word has length 89 [2022-11-25 22:30:55,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:30:55,574 INFO L495 AbstractCegarLoop]: Abstraction has 1731 states and 2381 transitions. [2022-11-25 22:30:55,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 22:30:55,575 INFO L276 IsEmpty]: Start isEmpty. Operand 1731 states and 2381 transitions. [2022-11-25 22:30:55,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-25 22:30:55,578 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:30:55,578 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:30:55,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 22:30:55,578 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2022-11-25 22:30:55,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:30:55,579 INFO L85 PathProgramCache]: Analyzing trace with hash 134667941, now seen corresponding path program 1 times [2022-11-25 22:30:55,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:30:55,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498766858] [2022-11-25 22:30:55,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:30:55,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:30:55,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:30:56,220 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-25 22:30:56,220 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:30:56,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498766858] [2022-11-25 22:30:56,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498766858] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:30:56,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:30:56,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:30:56,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582169125] [2022-11-25 22:30:56,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:30:56,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:30:56,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:30:56,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:30:56,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:30:56,224 INFO L87 Difference]: Start difference. First operand 1731 states and 2381 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-25 22:30:58,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:31:02,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:31:02,188 INFO L93 Difference]: Finished difference Result 1731 states and 2381 transitions. [2022-11-25 22:31:02,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:31:02,188 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 81 [2022-11-25 22:31:02,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:31:02,199 INFO L225 Difference]: With dead ends: 1731 [2022-11-25 22:31:02,199 INFO L226 Difference]: Without dead ends: 1729 [2022-11-25 22:31:02,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:31:02,202 INFO L413 NwaCegarLoop]: 1259 mSDtfsCounter, 1045 mSDsluCounter, 1647 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1050 SdHoareTripleChecker+Valid, 2906 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-25 22:31:02,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1050 Valid, 2906 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-11-25 22:31:02,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1729 states. [2022-11-25 22:31:02,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1729 to 1729. [2022-11-25 22:31:02,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1729 states, 1029 states have (on average 1.2750242954324587) internal successors, (1312), 1074 states have internal predecessors, (1312), 533 states have call successors, (533), 149 states have call predecessors, (533), 148 states have return successors, (534), 524 states have call predecessors, (534), 531 states have call successors, (534) [2022-11-25 22:31:02,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1729 states to 1729 states and 2379 transitions. [2022-11-25 22:31:02,343 INFO L78 Accepts]: Start accepts. Automaton has 1729 states and 2379 transitions. Word has length 81 [2022-11-25 22:31:02,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:31:02,344 INFO L495 AbstractCegarLoop]: Abstraction has 1729 states and 2379 transitions. [2022-11-25 22:31:02,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-25 22:31:02,344 INFO L276 IsEmpty]: Start isEmpty. Operand 1729 states and 2379 transitions. [2022-11-25 22:31:02,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-25 22:31:02,345 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:31:02,346 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:31:02,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 22:31:02,346 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2022-11-25 22:31:02,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:31:02,347 INFO L85 PathProgramCache]: Analyzing trace with hash -510356387, now seen corresponding path program 1 times [2022-11-25 22:31:02,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:31:02,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241587090] [2022-11-25 22:31:02,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:31:02,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:31:02,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:31:02,841 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-11-25 22:31:02,841 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:31:02,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241587090] [2022-11-25 22:31:02,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241587090] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:31:02,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320008961] [2022-11-25 22:31:02,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:31:02,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:31:02,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:31:02,850 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:31:02,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 22:31:05,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:31:05,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 3449 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 22:31:05,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:31:05,824 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-25 22:31:05,825 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:31:05,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [320008961] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:31:05,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 22:31:05,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2022-11-25 22:31:05,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514970339] [2022-11-25 22:31:05,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:31:05,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:31:05,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:31:05,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:31:05,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-25 22:31:05,827 INFO L87 Difference]: Start difference. First operand 1729 states and 2379 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-25 22:31:08,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:31:10,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:31:10,356 INFO L93 Difference]: Finished difference Result 3432 states and 4720 transitions. [2022-11-25 22:31:10,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:31:10,357 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 94 [2022-11-25 22:31:10,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:31:10,368 INFO L225 Difference]: With dead ends: 3432 [2022-11-25 22:31:10,368 INFO L226 Difference]: Without dead ends: 1723 [2022-11-25 22:31:10,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-25 22:31:10,379 INFO L413 NwaCegarLoop]: 1255 mSDtfsCounter, 1057 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1060 SdHoareTripleChecker+Valid, 1643 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-25 22:31:10,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1060 Valid, 1643 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 256 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-11-25 22:31:10,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1723 states. [2022-11-25 22:31:10,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1723 to 1723. [2022-11-25 22:31:10,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1723 states, 1024 states have (on average 1.2724609375) internal successors, (1303), 1068 states have internal predecessors, (1303), 533 states have call successors, (533), 149 states have call predecessors, (533), 148 states have return successors, (534), 524 states have call predecessors, (534), 531 states have call successors, (534) [2022-11-25 22:31:10,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1723 states to 1723 states and 2370 transitions. [2022-11-25 22:31:10,549 INFO L78 Accepts]: Start accepts. Automaton has 1723 states and 2370 transitions. Word has length 94 [2022-11-25 22:31:10,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:31:10,550 INFO L495 AbstractCegarLoop]: Abstraction has 1723 states and 2370 transitions. [2022-11-25 22:31:10,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-25 22:31:10,551 INFO L276 IsEmpty]: Start isEmpty. Operand 1723 states and 2370 transitions. [2022-11-25 22:31:10,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-25 22:31:10,553 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:31:10,553 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:31:10,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 22:31:10,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:31:10,767 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2022-11-25 22:31:10,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:31:10,768 INFO L85 PathProgramCache]: Analyzing trace with hash 2066491642, now seen corresponding path program 1 times [2022-11-25 22:31:10,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:31:10,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724765834] [2022-11-25 22:31:10,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:31:10,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:31:10,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:31:11,355 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-25 22:31:11,355 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:31:11,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724765834] [2022-11-25 22:31:11,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724765834] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:31:11,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:31:11,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:31:11,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603432960] [2022-11-25 22:31:11,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:31:11,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:31:11,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:31:11,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:31:11,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:31:11,358 INFO L87 Difference]: Start difference. First operand 1723 states and 2370 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-25 22:31:13,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:31:17,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:31:18,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:31:18,866 INFO L93 Difference]: Finished difference Result 1723 states and 2370 transitions. [2022-11-25 22:31:18,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:31:18,867 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 86 [2022-11-25 22:31:18,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:31:18,878 INFO L225 Difference]: With dead ends: 1723 [2022-11-25 22:31:18,878 INFO L226 Difference]: Without dead ends: 1721 [2022-11-25 22:31:18,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:31:18,880 INFO L413 NwaCegarLoop]: 1252 mSDtfsCounter, 1041 mSDsluCounter, 1636 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1046 SdHoareTripleChecker+Valid, 2888 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-11-25 22:31:18,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1046 Valid, 2888 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 463 Invalid, 2 Unknown, 0 Unchecked, 7.3s Time] [2022-11-25 22:31:18,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1721 states. [2022-11-25 22:31:19,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1721 to 1721. [2022-11-25 22:31:19,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1721 states, 1023 states have (on average 1.2717497556207233) internal successors, (1301), 1066 states have internal predecessors, (1301), 533 states have call successors, (533), 149 states have call predecessors, (533), 148 states have return successors, (534), 524 states have call predecessors, (534), 531 states have call successors, (534) [2022-11-25 22:31:19,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1721 states to 1721 states and 2368 transitions. [2022-11-25 22:31:19,038 INFO L78 Accepts]: Start accepts. Automaton has 1721 states and 2368 transitions. Word has length 86 [2022-11-25 22:31:19,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:31:19,038 INFO L495 AbstractCegarLoop]: Abstraction has 1721 states and 2368 transitions. [2022-11-25 22:31:19,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-25 22:31:19,038 INFO L276 IsEmpty]: Start isEmpty. Operand 1721 states and 2368 transitions. [2022-11-25 22:31:19,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-25 22:31:19,040 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:31:19,040 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:31:19,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 22:31:19,041 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2022-11-25 22:31:19,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:31:19,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1623708669, now seen corresponding path program 1 times [2022-11-25 22:31:19,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:31:19,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275665136] [2022-11-25 22:31:19,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:31:19,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:31:19,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:31:19,598 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-25 22:31:19,598 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:31:19,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275665136] [2022-11-25 22:31:19,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275665136] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:31:19,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:31:19,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:31:19,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498451428] [2022-11-25 22:31:19,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:31:19,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:31:19,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:31:19,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:31:19,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:31:19,601 INFO L87 Difference]: Start difference. First operand 1721 states and 2368 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-25 22:31:22,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:31:23,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:31:26,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:31:26,342 INFO L93 Difference]: Finished difference Result 1721 states and 2368 transitions. [2022-11-25 22:31:26,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:31:26,343 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 88 [2022-11-25 22:31:26,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:31:26,351 INFO L225 Difference]: With dead ends: 1721 [2022-11-25 22:31:26,352 INFO L226 Difference]: Without dead ends: 1719 [2022-11-25 22:31:26,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:31:26,354 INFO L413 NwaCegarLoop]: 1250 mSDtfsCounter, 1033 mSDsluCounter, 1638 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1038 SdHoareTripleChecker+Valid, 2888 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-25 22:31:26,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1038 Valid, 2888 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-11-25 22:31:26,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1719 states. [2022-11-25 22:31:26,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1719 to 1719. [2022-11-25 22:31:26,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1719 states, 1022 states have (on average 1.2710371819960862) internal successors, (1299), 1064 states have internal predecessors, (1299), 533 states have call successors, (533), 149 states have call predecessors, (533), 148 states have return successors, (534), 524 states have call predecessors, (534), 531 states have call successors, (534) [2022-11-25 22:31:26,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1719 states to 1719 states and 2366 transitions. [2022-11-25 22:31:26,542 INFO L78 Accepts]: Start accepts. Automaton has 1719 states and 2366 transitions. Word has length 88 [2022-11-25 22:31:26,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:31:26,543 INFO L495 AbstractCegarLoop]: Abstraction has 1719 states and 2366 transitions. [2022-11-25 22:31:26,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-25 22:31:26,543 INFO L276 IsEmpty]: Start isEmpty. Operand 1719 states and 2366 transitions. [2022-11-25 22:31:26,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-25 22:31:26,545 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:31:26,545 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:31:26,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 22:31:26,545 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2022-11-25 22:31:26,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:31:26,546 INFO L85 PathProgramCache]: Analyzing trace with hash 312509083, now seen corresponding path program 1 times [2022-11-25 22:31:26,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:31:26,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885301189] [2022-11-25 22:31:26,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:31:26,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:31:26,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:31:27,112 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-25 22:31:27,113 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:31:27,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885301189] [2022-11-25 22:31:27,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885301189] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:31:27,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:31:27,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:31:27,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650702350] [2022-11-25 22:31:27,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:31:27,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:31:27,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:31:27,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:31:27,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:31:27,116 INFO L87 Difference]: Start difference. First operand 1719 states and 2366 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-25 22:31:29,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:31:32,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:31:32,710 INFO L93 Difference]: Finished difference Result 1719 states and 2366 transitions. [2022-11-25 22:31:32,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:31:32,711 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 93 [2022-11-25 22:31:32,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:31:32,719 INFO L225 Difference]: With dead ends: 1719 [2022-11-25 22:31:32,719 INFO L226 Difference]: Without dead ends: 1717 [2022-11-25 22:31:32,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:31:32,721 INFO L413 NwaCegarLoop]: 1248 mSDtfsCounter, 1032 mSDsluCounter, 1636 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1037 SdHoareTripleChecker+Valid, 2884 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-25 22:31:32,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1037 Valid, 2884 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-11-25 22:31:32,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1717 states. [2022-11-25 22:31:32,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1717 to 1717. [2022-11-25 22:31:32,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1717 states, 1021 states have (on average 1.2703232125367288) internal successors, (1297), 1062 states have internal predecessors, (1297), 533 states have call successors, (533), 149 states have call predecessors, (533), 148 states have return successors, (534), 524 states have call predecessors, (534), 531 states have call successors, (534) [2022-11-25 22:31:32,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1717 states to 1717 states and 2364 transitions. [2022-11-25 22:31:32,939 INFO L78 Accepts]: Start accepts. Automaton has 1717 states and 2364 transitions. Word has length 93 [2022-11-25 22:31:32,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:31:32,939 INFO L495 AbstractCegarLoop]: Abstraction has 1717 states and 2364 transitions. [2022-11-25 22:31:32,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-25 22:31:32,940 INFO L276 IsEmpty]: Start isEmpty. Operand 1717 states and 2364 transitions. [2022-11-25 22:31:32,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-25 22:31:32,941 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:31:32,941 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:31:32,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 22:31:32,942 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2022-11-25 22:31:32,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:31:32,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1974337344, now seen corresponding path program 1 times [2022-11-25 22:31:32,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:31:32,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084518615] [2022-11-25 22:31:32,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:31:32,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:31:33,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:31:33,460 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-25 22:31:33,460 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:31:33,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084518615] [2022-11-25 22:31:33,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084518615] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:31:33,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:31:33,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:31:33,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080746935] [2022-11-25 22:31:33,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:31:33,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:31:33,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:31:33,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:31:33,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:31:33,463 INFO L87 Difference]: Start difference. First operand 1717 states and 2364 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-25 22:31:36,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:31:39,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:31:39,663 INFO L93 Difference]: Finished difference Result 1717 states and 2364 transitions. [2022-11-25 22:31:39,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:31:39,664 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 98 [2022-11-25 22:31:39,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:31:39,674 INFO L225 Difference]: With dead ends: 1717 [2022-11-25 22:31:39,675 INFO L226 Difference]: Without dead ends: 1715 [2022-11-25 22:31:39,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:31:39,677 INFO L413 NwaCegarLoop]: 1246 mSDtfsCounter, 1029 mSDsluCounter, 1634 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1034 SdHoareTripleChecker+Valid, 2880 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:31:39,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1034 Valid, 2880 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-11-25 22:31:39,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1715 states. [2022-11-25 22:31:39,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1715 to 1715. [2022-11-25 22:31:39,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1715 states, 1020 states have (on average 1.2696078431372548) internal successors, (1295), 1060 states have internal predecessors, (1295), 533 states have call successors, (533), 149 states have call predecessors, (533), 148 states have return successors, (534), 524 states have call predecessors, (534), 531 states have call successors, (534) [2022-11-25 22:31:39,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1715 states to 1715 states and 2362 transitions. [2022-11-25 22:31:39,899 INFO L78 Accepts]: Start accepts. Automaton has 1715 states and 2362 transitions. Word has length 98 [2022-11-25 22:31:39,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:31:39,899 INFO L495 AbstractCegarLoop]: Abstraction has 1715 states and 2362 transitions. [2022-11-25 22:31:39,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-25 22:31:39,900 INFO L276 IsEmpty]: Start isEmpty. Operand 1715 states and 2362 transitions. [2022-11-25 22:31:39,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-25 22:31:39,902 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:31:39,902 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:31:39,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 22:31:39,903 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2022-11-25 22:31:39,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:31:39,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1776395425, now seen corresponding path program 1 times [2022-11-25 22:31:39,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:31:39,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012440394] [2022-11-25 22:31:39,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:31:39,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:31:40,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:31:40,610 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-25 22:31:40,610 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:31:40,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012440394] [2022-11-25 22:31:40,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012440394] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:31:40,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:31:40,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:31:40,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901527514] [2022-11-25 22:31:40,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:31:40,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:31:40,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:31:40,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:31:40,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:31:40,614 INFO L87 Difference]: Start difference. First operand 1715 states and 2362 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-25 22:31:43,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:31:46,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:31:46,340 INFO L93 Difference]: Finished difference Result 1715 states and 2362 transitions. [2022-11-25 22:31:46,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:31:46,340 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 103 [2022-11-25 22:31:46,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:31:46,350 INFO L225 Difference]: With dead ends: 1715 [2022-11-25 22:31:46,350 INFO L226 Difference]: Without dead ends: 1713 [2022-11-25 22:31:46,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:31:46,352 INFO L413 NwaCegarLoop]: 1244 mSDtfsCounter, 1026 mSDsluCounter, 1632 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1031 SdHoareTripleChecker+Valid, 2876 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-25 22:31:46,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1031 Valid, 2876 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-11-25 22:31:46,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1713 states. [2022-11-25 22:31:46,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1713 to 1713. [2022-11-25 22:31:46,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1713 states, 1019 states have (on average 1.268891069676153) internal successors, (1293), 1058 states have internal predecessors, (1293), 533 states have call successors, (533), 149 states have call predecessors, (533), 148 states have return successors, (534), 524 states have call predecessors, (534), 531 states have call successors, (534) [2022-11-25 22:31:46,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1713 states to 1713 states and 2360 transitions. [2022-11-25 22:31:46,548 INFO L78 Accepts]: Start accepts. Automaton has 1713 states and 2360 transitions. Word has length 103 [2022-11-25 22:31:46,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:31:46,549 INFO L495 AbstractCegarLoop]: Abstraction has 1713 states and 2360 transitions. [2022-11-25 22:31:46,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-25 22:31:46,549 INFO L276 IsEmpty]: Start isEmpty. Operand 1713 states and 2360 transitions. [2022-11-25 22:31:46,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-25 22:31:46,551 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:31:46,552 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:31:46,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-25 22:31:46,552 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2022-11-25 22:31:46,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:31:46,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1707371674, now seen corresponding path program 1 times [2022-11-25 22:31:46,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:31:46,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861724820] [2022-11-25 22:31:46,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:31:46,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:31:46,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:31:47,126 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-25 22:31:47,126 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:31:47,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861724820] [2022-11-25 22:31:47,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861724820] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:31:47,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:31:47,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:31:47,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731160615] [2022-11-25 22:31:47,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:31:47,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:31:47,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:31:47,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:31:47,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:31:47,132 INFO L87 Difference]: Start difference. First operand 1713 states and 2360 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-25 22:31:49,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:31:51,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:31:53,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:31:53,846 INFO L93 Difference]: Finished difference Result 1713 states and 2360 transitions. [2022-11-25 22:31:53,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:31:53,847 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 108 [2022-11-25 22:31:53,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:31:53,858 INFO L225 Difference]: With dead ends: 1713 [2022-11-25 22:31:53,858 INFO L226 Difference]: Without dead ends: 1711 [2022-11-25 22:31:53,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:31:53,861 INFO L413 NwaCegarLoop]: 1242 mSDtfsCounter, 1023 mSDsluCounter, 1630 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1028 SdHoareTripleChecker+Valid, 2872 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-25 22:31:53,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1028 Valid, 2872 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-11-25 22:31:53,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1711 states. [2022-11-25 22:31:54,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1711 to 1711. [2022-11-25 22:31:54,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1711 states, 1018 states have (on average 1.268172888015717) internal successors, (1291), 1056 states have internal predecessors, (1291), 533 states have call successors, (533), 149 states have call predecessors, (533), 148 states have return successors, (534), 524 states have call predecessors, (534), 531 states have call successors, (534) [2022-11-25 22:31:54,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1711 states to 1711 states and 2358 transitions. [2022-11-25 22:31:54,097 INFO L78 Accepts]: Start accepts. Automaton has 1711 states and 2358 transitions. Word has length 108 [2022-11-25 22:31:54,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:31:54,097 INFO L495 AbstractCegarLoop]: Abstraction has 1711 states and 2358 transitions. [2022-11-25 22:31:54,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-25 22:31:54,098 INFO L276 IsEmpty]: Start isEmpty. Operand 1711 states and 2358 transitions. [2022-11-25 22:31:54,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-25 22:31:54,100 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:31:54,100 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:31:54,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-25 22:31:54,101 INFO L420 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_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2022-11-25 22:31:54,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:31:54,101 INFO L85 PathProgramCache]: Analyzing trace with hash 2086109283, now seen corresponding path program 1 times [2022-11-25 22:31:54,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:31:54,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111058033] [2022-11-25 22:31:54,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:31:54,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:31:54,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:31:54,695 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-25 22:31:54,695 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:31:54,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111058033] [2022-11-25 22:31:54,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111058033] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:31:54,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:31:54,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:31:54,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693462248] [2022-11-25 22:31:54,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:31:54,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:31:54,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:31:54,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:31:54,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:31:54,699 INFO L87 Difference]: Start difference. First operand 1711 states and 2358 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-25 22:31:57,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:32:00,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:32:00,277 INFO L93 Difference]: Finished difference Result 1711 states and 2358 transitions. [2022-11-25 22:32:00,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:32:00,278 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 113 [2022-11-25 22:32:00,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:32:00,287 INFO L225 Difference]: With dead ends: 1711 [2022-11-25 22:32:00,288 INFO L226 Difference]: Without dead ends: 1709 [2022-11-25 22:32:00,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:32:00,290 INFO L413 NwaCegarLoop]: 1240 mSDtfsCounter, 1020 mSDsluCounter, 1628 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1025 SdHoareTripleChecker+Valid, 2868 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-25 22:32:00,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1025 Valid, 2868 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-11-25 22:32:00,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1709 states. [2022-11-25 22:32:00,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1709 to 1709. [2022-11-25 22:32:00,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1709 states, 1017 states have (on average 1.2674532940019665) internal successors, (1289), 1054 states have internal predecessors, (1289), 533 states have call successors, (533), 149 states have call predecessors, (533), 148 states have return successors, (534), 524 states have call predecessors, (534), 531 states have call successors, (534) [2022-11-25 22:32:00,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1709 states to 1709 states and 2356 transitions. [2022-11-25 22:32:00,511 INFO L78 Accepts]: Start accepts. Automaton has 1709 states and 2356 transitions. Word has length 113 [2022-11-25 22:32:00,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:32:00,512 INFO L495 AbstractCegarLoop]: Abstraction has 1709 states and 2356 transitions. [2022-11-25 22:32:00,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-25 22:32:00,512 INFO L276 IsEmpty]: Start isEmpty. Operand 1709 states and 2356 transitions. [2022-11-25 22:32:00,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-11-25 22:32:00,515 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:32:00,515 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:32:00,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-25 22:32:00,515 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2022-11-25 22:32:00,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:32:00,516 INFO L85 PathProgramCache]: Analyzing trace with hash -813296117, now seen corresponding path program 1 times [2022-11-25 22:32:00,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:32:00,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053859798] [2022-11-25 22:32:00,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:32:00,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:32:00,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:32:01,682 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2022-11-25 22:32:01,682 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:32:01,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053859798] [2022-11-25 22:32:01,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053859798] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:32:01,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:32:01,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:32:01,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505006539] [2022-11-25 22:32:01,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:32:01,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:32:01,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:32:01,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:32:01,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:32:01,684 INFO L87 Difference]: Start difference. First operand 1709 states and 2356 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-25 22:32:04,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:32:08,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:32:08,800 INFO L93 Difference]: Finished difference Result 1714 states and 2359 transitions. [2022-11-25 22:32:08,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:32:08,800 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 134 [2022-11-25 22:32:08,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:32:08,817 INFO L225 Difference]: With dead ends: 1714 [2022-11-25 22:32:08,818 INFO L226 Difference]: Without dead ends: 1712 [2022-11-25 22:32:08,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-25 22:32:08,820 INFO L413 NwaCegarLoop]: 1237 mSDtfsCounter, 947 mSDsluCounter, 2909 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 950 SdHoareTripleChecker+Valid, 4146 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-11-25 22:32:08,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [950 Valid, 4146 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 686 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2022-11-25 22:32:08,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1712 states. [2022-11-25 22:32:09,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1712 to 1711. [2022-11-25 22:32:09,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1711 states, 1018 states have (on average 1.2652259332023577) internal successors, (1288), 1054 states have internal predecessors, (1288), 533 states have call successors, (533), 151 states have call predecessors, (533), 150 states have return successors, (534), 524 states have call predecessors, (534), 531 states have call successors, (534) [2022-11-25 22:32:09,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1711 states to 1711 states and 2355 transitions. [2022-11-25 22:32:09,100 INFO L78 Accepts]: Start accepts. Automaton has 1711 states and 2355 transitions. Word has length 134 [2022-11-25 22:32:09,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:32:09,101 INFO L495 AbstractCegarLoop]: Abstraction has 1711 states and 2355 transitions. [2022-11-25 22:32:09,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-25 22:32:09,102 INFO L276 IsEmpty]: Start isEmpty. Operand 1711 states and 2355 transitions. [2022-11-25 22:32:09,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-25 22:32:09,104 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:32:09,105 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:32:09,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-25 22:32:09,105 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2022-11-25 22:32:09,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:32:09,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1378726323, now seen corresponding path program 1 times [2022-11-25 22:32:09,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:32:09,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793499626] [2022-11-25 22:32:09,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:32:09,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:32:09,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:32:09,770 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-25 22:32:09,771 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:32:09,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793499626] [2022-11-25 22:32:09,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793499626] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:32:09,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:32:09,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:32:09,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140327477] [2022-11-25 22:32:09,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:32:09,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:32:09,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:32:09,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:32:09,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:32:09,773 INFO L87 Difference]: Start difference. First operand 1711 states and 2355 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-25 22:32:12,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:32:14,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:32:16,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:32:16,554 INFO L93 Difference]: Finished difference Result 1711 states and 2355 transitions. [2022-11-25 22:32:16,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:32:16,554 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 118 [2022-11-25 22:32:16,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:32:16,563 INFO L225 Difference]: With dead ends: 1711 [2022-11-25 22:32:16,563 INFO L226 Difference]: Without dead ends: 1709 [2022-11-25 22:32:16,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:32:16,565 INFO L413 NwaCegarLoop]: 1236 mSDtfsCounter, 1015 mSDsluCounter, 1624 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1020 SdHoareTripleChecker+Valid, 2860 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-25 22:32:16,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1020 Valid, 2860 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-11-25 22:32:16,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1709 states. [2022-11-25 22:32:16,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1709 to 1709. [2022-11-25 22:32:16,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1709 states, 1017 states have (on average 1.264503441494592) internal successors, (1286), 1052 states have internal predecessors, (1286), 533 states have call successors, (533), 151 states have call predecessors, (533), 150 states have return successors, (534), 524 states have call predecessors, (534), 531 states have call successors, (534) [2022-11-25 22:32:16,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1709 states to 1709 states and 2353 transitions. [2022-11-25 22:32:16,764 INFO L78 Accepts]: Start accepts. Automaton has 1709 states and 2353 transitions. Word has length 118 [2022-11-25 22:32:16,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:32:16,764 INFO L495 AbstractCegarLoop]: Abstraction has 1709 states and 2353 transitions. [2022-11-25 22:32:16,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-25 22:32:16,765 INFO L276 IsEmpty]: Start isEmpty. Operand 1709 states and 2353 transitions. [2022-11-25 22:32:16,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-25 22:32:16,767 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:32:16,767 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:32:16,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-25 22:32:16,768 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2022-11-25 22:32:16,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:32:16,768 INFO L85 PathProgramCache]: Analyzing trace with hash -413949352, now seen corresponding path program 1 times [2022-11-25 22:32:16,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:32:16,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284708052] [2022-11-25 22:32:16,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:32:16,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:32:16,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:32:17,754 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-25 22:32:17,755 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:32:17,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284708052] [2022-11-25 22:32:17,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284708052] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:32:17,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:32:17,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:32:17,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5343570] [2022-11-25 22:32:17,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:32:17,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:32:17,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:32:17,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:32:17,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:32:17,758 INFO L87 Difference]: Start difference. First operand 1709 states and 2353 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-25 22:32:20,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:32:23,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:32:23,746 INFO L93 Difference]: Finished difference Result 1709 states and 2353 transitions. [2022-11-25 22:32:23,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:32:23,747 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 123 [2022-11-25 22:32:23,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:32:23,752 INFO L225 Difference]: With dead ends: 1709 [2022-11-25 22:32:23,753 INFO L226 Difference]: Without dead ends: 1707 [2022-11-25 22:32:23,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:32:23,754 INFO L413 NwaCegarLoop]: 1234 mSDtfsCounter, 1012 mSDsluCounter, 1622 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1017 SdHoareTripleChecker+Valid, 2856 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-25 22:32:23,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1017 Valid, 2856 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-11-25 22:32:23,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2022-11-25 22:32:23,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1707. [2022-11-25 22:32:23,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1707 states, 1016 states have (on average 1.263779527559055) internal successors, (1284), 1050 states have internal predecessors, (1284), 533 states have call successors, (533), 151 states have call predecessors, (533), 150 states have return successors, (534), 524 states have call predecessors, (534), 531 states have call successors, (534) [2022-11-25 22:32:23,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 2351 transitions. [2022-11-25 22:32:23,978 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 2351 transitions. Word has length 123 [2022-11-25 22:32:23,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:32:23,979 INFO L495 AbstractCegarLoop]: Abstraction has 1707 states and 2351 transitions. [2022-11-25 22:32:23,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-25 22:32:23,979 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 2351 transitions. [2022-11-25 22:32:23,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-11-25 22:32:23,982 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:32:23,982 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:32:23,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-25 22:32:23,983 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2022-11-25 22:32:23,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:32:23,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1945257182, now seen corresponding path program 1 times [2022-11-25 22:32:23,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:32:23,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747352316] [2022-11-25 22:32:23,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:32:23,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:32:24,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:32:26,262 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2022-11-25 22:32:26,263 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:32:26,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747352316] [2022-11-25 22:32:26,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747352316] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:32:26,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:32:26,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 22:32:26,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492286295] [2022-11-25 22:32:26,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:32:26,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 22:32:26,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:32:26,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 22:32:26,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-11-25 22:32:26,265 INFO L87 Difference]: Start difference. First operand 1707 states and 2351 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, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2022-11-25 22:32:31,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:32:52,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:32:52,259 INFO L93 Difference]: Finished difference Result 4806 states and 6971 transitions. [2022-11-25 22:32:52,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 22:32:52,260 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, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) Word has length 141 [2022-11-25 22:32:52,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:32:52,278 INFO L225 Difference]: With dead ends: 4806 [2022-11-25 22:32:52,279 INFO L226 Difference]: Without dead ends: 3117 [2022-11-25 22:32:52,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-11-25 22:32:52,291 INFO L413 NwaCegarLoop]: 1894 mSDtfsCounter, 962 mSDsluCounter, 15677 mSDsCounter, 0 mSdLazyCounter, 3132 mSolverCounterSat, 511 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1112 SdHoareTripleChecker+Valid, 17571 SdHoareTripleChecker+Invalid, 3644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 511 IncrementalHoareTripleChecker+Valid, 3132 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:32:52,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1112 Valid, 17571 Invalid, 3644 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [511 Valid, 3132 Invalid, 1 Unknown, 0 Unchecked, 25.0s Time] [2022-11-25 22:32:52,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3117 states. [2022-11-25 22:32:52,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3117 to 1731. [2022-11-25 22:32:52,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1731 states, 1032 states have (on average 1.2596899224806202) internal successors, (1300), 1066 states have internal predecessors, (1300), 541 states have call successors, (541), 151 states have call predecessors, (541), 150 states have return successors, (542), 532 states have call predecessors, (542), 539 states have call successors, (542) [2022-11-25 22:32:52,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1731 states to 1731 states and 2383 transitions. [2022-11-25 22:32:52,603 INFO L78 Accepts]: Start accepts. Automaton has 1731 states and 2383 transitions. Word has length 141 [2022-11-25 22:32:52,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:32:52,604 INFO L495 AbstractCegarLoop]: Abstraction has 1731 states and 2383 transitions. [2022-11-25 22:32:52,604 INFO L496 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, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2022-11-25 22:32:52,605 INFO L276 IsEmpty]: Start isEmpty. Operand 1731 states and 2383 transitions. [2022-11-25 22:32:52,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-25 22:32:52,607 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:32:52,607 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:32:52,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-25 22:32:52,608 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2022-11-25 22:32:52,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:32:52,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1780158618, now seen corresponding path program 1 times [2022-11-25 22:32:52,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:32:52,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301166040] [2022-11-25 22:32:52,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:32:52,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:32:52,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:32:53,145 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-25 22:32:53,145 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:32:53,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301166040] [2022-11-25 22:32:53,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301166040] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:32:53,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:32:53,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:32:53,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35061455] [2022-11-25 22:32:53,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:32:53,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:32:53,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:32:53,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:32:53,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:32:53,151 INFO L87 Difference]: Start difference. First operand 1731 states and 2383 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-25 22:32:55,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:32:59,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:32:59,068 INFO L93 Difference]: Finished difference Result 1731 states and 2383 transitions. [2022-11-25 22:32:59,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:32:59,069 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 128 [2022-11-25 22:32:59,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:32:59,076 INFO L225 Difference]: With dead ends: 1731 [2022-11-25 22:32:59,076 INFO L226 Difference]: Without dead ends: 1729 [2022-11-25 22:32:59,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:32:59,079 INFO L413 NwaCegarLoop]: 1232 mSDtfsCounter, 1009 mSDsluCounter, 1620 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1014 SdHoareTripleChecker+Valid, 2852 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-25 22:32:59,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1014 Valid, 2852 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-11-25 22:32:59,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1729 states. [2022-11-25 22:32:59,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1729 to 1729. [2022-11-25 22:32:59,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1729 states, 1031 states have (on average 1.2589718719689622) internal successors, (1298), 1064 states have internal predecessors, (1298), 541 states have call successors, (541), 151 states have call predecessors, (541), 150 states have return successors, (542), 532 states have call predecessors, (542), 539 states have call successors, (542) [2022-11-25 22:32:59,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1729 states to 1729 states and 2381 transitions. [2022-11-25 22:32:59,334 INFO L78 Accepts]: Start accepts. Automaton has 1729 states and 2381 transitions. Word has length 128 [2022-11-25 22:32:59,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:32:59,334 INFO L495 AbstractCegarLoop]: Abstraction has 1729 states and 2381 transitions. [2022-11-25 22:32:59,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-25 22:32:59,335 INFO L276 IsEmpty]: Start isEmpty. Operand 1729 states and 2381 transitions. [2022-11-25 22:32:59,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-25 22:32:59,337 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:32:59,338 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:32:59,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-25 22:32:59,338 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2022-11-25 22:32:59,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:32:59,338 INFO L85 PathProgramCache]: Analyzing trace with hash 807420915, now seen corresponding path program 1 times [2022-11-25 22:32:59,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:32:59,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599053856] [2022-11-25 22:32:59,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:32:59,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:32:59,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:32:59,880 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-25 22:32:59,880 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:32:59,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599053856] [2022-11-25 22:32:59,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599053856] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:32:59,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:32:59,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:32:59,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992717831] [2022-11-25 22:32:59,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:32:59,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:32:59,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:32:59,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:32:59,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:32:59,885 INFO L87 Difference]: Start difference. First operand 1729 states and 2381 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-25 22:33:02,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:33:06,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:33:06,006 INFO L93 Difference]: Finished difference Result 1729 states and 2381 transitions. [2022-11-25 22:33:06,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:33:06,007 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 133 [2022-11-25 22:33:06,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:33:06,015 INFO L225 Difference]: With dead ends: 1729 [2022-11-25 22:33:06,015 INFO L226 Difference]: Without dead ends: 1727 [2022-11-25 22:33:06,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:33:06,017 INFO L413 NwaCegarLoop]: 1230 mSDtfsCounter, 1006 mSDsluCounter, 1618 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1011 SdHoareTripleChecker+Valid, 2848 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-25 22:33:06,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1011 Valid, 2848 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-11-25 22:33:06,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1727 states. [2022-11-25 22:33:06,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1727 to 1727. [2022-11-25 22:33:06,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1727 states, 1030 states have (on average 1.258252427184466) internal successors, (1296), 1062 states have internal predecessors, (1296), 541 states have call successors, (541), 151 states have call predecessors, (541), 150 states have return successors, (542), 532 states have call predecessors, (542), 539 states have call successors, (542) [2022-11-25 22:33:06,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1727 states to 1727 states and 2379 transitions. [2022-11-25 22:33:06,319 INFO L78 Accepts]: Start accepts. Automaton has 1727 states and 2379 transitions. Word has length 133 [2022-11-25 22:33:06,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:33:06,319 INFO L495 AbstractCegarLoop]: Abstraction has 1727 states and 2379 transitions. [2022-11-25 22:33:06,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-25 22:33:06,320 INFO L276 IsEmpty]: Start isEmpty. Operand 1727 states and 2379 transitions. [2022-11-25 22:33:06,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-11-25 22:33:06,323 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:33:06,323 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:33:06,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-25 22:33:06,323 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2022-11-25 22:33:06,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:33:06,324 INFO L85 PathProgramCache]: Analyzing trace with hash 918273505, now seen corresponding path program 1 times [2022-11-25 22:33:06,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:33:06,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503859160] [2022-11-25 22:33:06,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:33:06,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:33:06,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:33:08,990 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 4 proven. 26 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2022-11-25 22:33:08,991 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:33:08,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503859160] [2022-11-25 22:33:08,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503859160] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:33:08,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1003924682] [2022-11-25 22:33:08,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:33:08,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:33:08,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:33:08,997 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:33:09,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 22:33:12,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:33:12,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 3807 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-25 22:33:12,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:33:12,721 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2022-11-25 22:33:12,724 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:33:12,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1003924682] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:33:12,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 22:33:12,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [9] total 16 [2022-11-25 22:33:12,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273477181] [2022-11-25 22:33:12,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:33:12,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 22:33:12,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:33:12,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 22:33:12,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2022-11-25 22:33:12,727 INFO L87 Difference]: Start difference. First operand 1727 states and 2379 transitions. Second operand has 11 states, 8 states have (on average 7.625) internal successors, (61), 10 states have internal predecessors, (61), 6 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) [2022-11-25 22:33:17,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:33:26,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:33:28,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:33:30,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:33:32,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:33:34,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:33:36,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:33:38,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:33:40,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:33:43,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:33:44,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:33:52,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:33:52,705 INFO L93 Difference]: Finished difference Result 4510 states and 6471 transitions. [2022-11-25 22:33:52,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 22:33:52,706 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 7.625) internal successors, (61), 10 states have internal predecessors, (61), 6 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) Word has length 153 [2022-11-25 22:33:52,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:33:52,720 INFO L225 Difference]: With dead ends: 4510 [2022-11-25 22:33:52,720 INFO L226 Difference]: Without dead ends: 2801 [2022-11-25 22:33:52,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2022-11-25 22:33:52,729 INFO L413 NwaCegarLoop]: 1752 mSDtfsCounter, 1274 mSDsluCounter, 14553 mSDsCounter, 0 mSdLazyCounter, 3100 mSolverCounterSat, 618 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1276 SdHoareTripleChecker+Valid, 16305 SdHoareTripleChecker+Invalid, 3727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 618 IncrementalHoareTripleChecker+Valid, 3100 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.6s IncrementalHoareTripleChecker+Time [2022-11-25 22:33:52,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1276 Valid, 16305 Invalid, 3727 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [618 Valid, 3100 Invalid, 9 Unknown, 0 Unchecked, 38.6s Time] [2022-11-25 22:33:52,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2801 states. [2022-11-25 22:33:53,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2801 to 1727. [2022-11-25 22:33:53,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1727 states, 1030 states have (on average 1.258252427184466) internal successors, (1296), 1062 states have internal predecessors, (1296), 541 states have call successors, (541), 151 states have call predecessors, (541), 150 states have return successors, (542), 532 states have call predecessors, (542), 539 states have call successors, (542) [2022-11-25 22:33:53,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1727 states to 1727 states and 2379 transitions. [2022-11-25 22:33:53,132 INFO L78 Accepts]: Start accepts. Automaton has 1727 states and 2379 transitions. Word has length 153 [2022-11-25 22:33:53,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:33:53,133 INFO L495 AbstractCegarLoop]: Abstraction has 1727 states and 2379 transitions. [2022-11-25 22:33:53,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 7.625) internal successors, (61), 10 states have internal predecessors, (61), 6 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) [2022-11-25 22:33:53,133 INFO L276 IsEmpty]: Start isEmpty. Operand 1727 states and 2379 transitions. [2022-11-25 22:33:53,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-25 22:33:53,136 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:33:53,137 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:33:53,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 22:33:53,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:33:53,363 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2022-11-25 22:33:53,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:33:53,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1269583150, now seen corresponding path program 1 times [2022-11-25 22:33:53,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:33:53,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027134623] [2022-11-25 22:33:53,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:33:53,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:33:53,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:33:53,883 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-25 22:33:53,884 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:33:53,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027134623] [2022-11-25 22:33:53,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027134623] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:33:53,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:33:53,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:33:53,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471177998] [2022-11-25 22:33:53,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:33:53,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:33:53,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:33:53,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:33:53,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:33:53,887 INFO L87 Difference]: Start difference. First operand 1727 states and 2379 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-25 22:33:56,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:33:58,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:34:01,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:34:01,335 INFO L93 Difference]: Finished difference Result 1727 states and 2379 transitions. [2022-11-25 22:34:01,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:34:01,335 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 138 [2022-11-25 22:34:01,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:34:01,343 INFO L225 Difference]: With dead ends: 1727 [2022-11-25 22:34:01,343 INFO L226 Difference]: Without dead ends: 1725 [2022-11-25 22:34:01,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:34:01,346 INFO L413 NwaCegarLoop]: 1228 mSDtfsCounter, 1003 mSDsluCounter, 1616 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1008 SdHoareTripleChecker+Valid, 2844 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:34:01,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1008 Valid, 2844 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2022-11-25 22:34:01,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1725 states. [2022-11-25 22:34:01,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1725 to 1725. [2022-11-25 22:34:01,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1725 states, 1029 states have (on average 1.2575315840621963) internal successors, (1294), 1060 states have internal predecessors, (1294), 541 states have call successors, (541), 151 states have call predecessors, (541), 150 states have return successors, (542), 532 states have call predecessors, (542), 539 states have call successors, (542) [2022-11-25 22:34:01,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1725 states to 1725 states and 2377 transitions. [2022-11-25 22:34:01,653 INFO L78 Accepts]: Start accepts. Automaton has 1725 states and 2377 transitions. Word has length 138 [2022-11-25 22:34:01,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:34:01,653 INFO L495 AbstractCegarLoop]: Abstraction has 1725 states and 2377 transitions. [2022-11-25 22:34:01,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-25 22:34:01,654 INFO L276 IsEmpty]: Start isEmpty. Operand 1725 states and 2377 transitions. [2022-11-25 22:34:01,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-25 22:34:01,656 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:34:01,657 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:34:01,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-25 22:34:01,657 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2022-11-25 22:34:01,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:34:01,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1322163875, now seen corresponding path program 1 times [2022-11-25 22:34:01,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:34:01,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93217882] [2022-11-25 22:34:01,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:34:01,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:34:01,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:34:02,228 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-25 22:34:02,229 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:34:02,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93217882] [2022-11-25 22:34:02,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93217882] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:34:02,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:34:02,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:34:02,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685118460] [2022-11-25 22:34:02,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:34:02,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:34:02,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:34:02,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:34:02,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:34:02,232 INFO L87 Difference]: Start difference. First operand 1725 states and 2377 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-25 22:34:05,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:34:09,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:34:11,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:34:11,102 INFO L93 Difference]: Finished difference Result 1725 states and 2377 transitions. [2022-11-25 22:34:11,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:34:11,103 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 143 [2022-11-25 22:34:11,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:34:11,107 INFO L225 Difference]: With dead ends: 1725 [2022-11-25 22:34:11,107 INFO L226 Difference]: Without dead ends: 1723 [2022-11-25 22:34:11,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:34:11,108 INFO L413 NwaCegarLoop]: 1226 mSDtfsCounter, 1000 mSDsluCounter, 1614 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1005 SdHoareTripleChecker+Valid, 2840 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-11-25 22:34:11,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1005 Valid, 2840 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 8.3s Time] [2022-11-25 22:34:11,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1723 states. [2022-11-25 22:34:11,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1723 to 1723. [2022-11-25 22:34:11,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1723 states, 1028 states have (on average 1.2568093385214008) internal successors, (1292), 1058 states have internal predecessors, (1292), 541 states have call successors, (541), 151 states have call predecessors, (541), 150 states have return successors, (542), 532 states have call predecessors, (542), 539 states have call successors, (542) [2022-11-25 22:34:11,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1723 states to 1723 states and 2375 transitions. [2022-11-25 22:34:11,567 INFO L78 Accepts]: Start accepts. Automaton has 1723 states and 2375 transitions. Word has length 143 [2022-11-25 22:34:11,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:34:11,567 INFO L495 AbstractCegarLoop]: Abstraction has 1723 states and 2375 transitions. [2022-11-25 22:34:11,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-25 22:34:11,568 INFO L276 IsEmpty]: Start isEmpty. Operand 1723 states and 2375 transitions. [2022-11-25 22:34:11,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-11-25 22:34:11,570 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:34:11,570 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:34:11,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-25 22:34:11,571 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2022-11-25 22:34:11,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:34:11,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1919119322, now seen corresponding path program 1 times [2022-11-25 22:34:11,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:34:11,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420039730] [2022-11-25 22:34:11,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:34:11,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:34:11,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:34:12,742 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-11-25 22:34:12,742 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:34:12,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420039730] [2022-11-25 22:34:12,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420039730] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:34:12,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:34:12,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:34:12,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322642904] [2022-11-25 22:34:12,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:34:12,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:34:12,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:34:12,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:34:12,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:34:12,744 INFO L87 Difference]: Start difference. First operand 1723 states and 2375 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-25 22:34:15,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:34:22,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:34:22,193 INFO L93 Difference]: Finished difference Result 3552 states and 4933 transitions. [2022-11-25 22:34:22,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:34:22,194 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) Word has length 162 [2022-11-25 22:34:22,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:34:22,203 INFO L225 Difference]: With dead ends: 3552 [2022-11-25 22:34:22,204 INFO L226 Difference]: Without dead ends: 1849 [2022-11-25 22:34:22,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:34:22,212 INFO L413 NwaCegarLoop]: 1330 mSDtfsCounter, 23 mSDsluCounter, 3895 mSDsCounter, 0 mSdLazyCounter, 877 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 5225 SdHoareTripleChecker+Invalid, 878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 877 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2022-11-25 22:34:22,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 5225 Invalid, 878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 877 Invalid, 1 Unknown, 0 Unchecked, 8.9s Time] [2022-11-25 22:34:22,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1849 states. [2022-11-25 22:34:22,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1849 to 1731. [2022-11-25 22:34:22,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1731 states, 1034 states have (on average 1.2553191489361701) internal successors, (1298), 1064 states have internal predecessors, (1298), 541 states have call successors, (541), 151 states have call predecessors, (541), 152 states have return successors, (552), 534 states have call predecessors, (552), 539 states have call successors, (552) [2022-11-25 22:34:22,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1731 states to 1731 states and 2391 transitions. [2022-11-25 22:34:22,665 INFO L78 Accepts]: Start accepts. Automaton has 1731 states and 2391 transitions. Word has length 162 [2022-11-25 22:34:22,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:34:22,666 INFO L495 AbstractCegarLoop]: Abstraction has 1731 states and 2391 transitions. [2022-11-25 22:34:22,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-25 22:34:22,667 INFO L276 IsEmpty]: Start isEmpty. Operand 1731 states and 2391 transitions. [2022-11-25 22:34:22,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-25 22:34:22,668 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:34:22,669 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:34:22,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-25 22:34:22,669 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2022-11-25 22:34:22,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:34:22,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1461484456, now seen corresponding path program 1 times [2022-11-25 22:34:22,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:34:22,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496040946] [2022-11-25 22:34:22,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:34:22,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:34:22,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:34:23,133 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-25 22:34:23,134 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:34:23,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496040946] [2022-11-25 22:34:23,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496040946] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:34:23,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:34:23,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:34:23,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842520876] [2022-11-25 22:34:23,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:34:23,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:34:23,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:34:23,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:34:23,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:34:23,136 INFO L87 Difference]: Start difference. First operand 1731 states and 2391 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-25 22:34:25,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:34:28,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:34:28,966 INFO L93 Difference]: Finished difference Result 1731 states and 2391 transitions. [2022-11-25 22:34:28,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:34:28,967 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 148 [2022-11-25 22:34:28,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:34:28,972 INFO L225 Difference]: With dead ends: 1731 [2022-11-25 22:34:28,972 INFO L226 Difference]: Without dead ends: 1586 [2022-11-25 22:34:28,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:34:28,974 INFO L413 NwaCegarLoop]: 1225 mSDtfsCounter, 997 mSDsluCounter, 1613 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1000 SdHoareTripleChecker+Valid, 2838 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-25 22:34:28,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1000 Valid, 2838 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-11-25 22:34:28,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1586 states. [2022-11-25 22:34:29,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1586 to 1586. [2022-11-25 22:34:29,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1586 states, 960 states have (on average 1.2708333333333333) internal successors, (1220), 987 states have internal predecessors, (1220), 491 states have call successors, (491), 131 states have call predecessors, (491), 132 states have return successors, (502), 486 states have call predecessors, (502), 489 states have call successors, (502) [2022-11-25 22:34:29,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1586 states to 1586 states and 2213 transitions. [2022-11-25 22:34:29,281 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 2213 transitions. Word has length 148 [2022-11-25 22:34:29,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:34:29,281 INFO L495 AbstractCegarLoop]: Abstraction has 1586 states and 2213 transitions. [2022-11-25 22:34:29,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-25 22:34:29,282 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 2213 transitions. [2022-11-25 22:34:29,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-11-25 22:34:29,284 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:34:29,284 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:34:29,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-25 22:34:29,284 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2022-11-25 22:34:29,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:34:29,285 INFO L85 PathProgramCache]: Analyzing trace with hash 707903293, now seen corresponding path program 1 times [2022-11-25 22:34:29,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:34:29,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000016434] [2022-11-25 22:34:29,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:34:29,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:34:29,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:34:31,780 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-11-25 22:34:31,780 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:34:31,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000016434] [2022-11-25 22:34:31,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000016434] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:34:31,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:34:31,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 22:34:31,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654199492] [2022-11-25 22:34:31,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:34:31,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 22:34:31,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:34:31,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 22:34:31,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-25 22:34:31,783 INFO L87 Difference]: Start difference. First operand 1586 states and 2213 transitions. Second operand has 12 states, 9 states have (on average 7.444444444444445) internal successors, (67), 11 states have internal predecessors, (67), 7 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 7 states have call predecessors, (29), 7 states have call successors, (29) [2022-11-25 22:34:42,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:34:47,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:34:52,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:35:01,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:35:01,047 INFO L93 Difference]: Finished difference Result 4507 states and 6581 transitions. [2022-11-25 22:35:01,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-25 22:35:01,047 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 7.444444444444445) internal successors, (67), 11 states have internal predecessors, (67), 7 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 7 states have call predecessors, (29), 7 states have call successors, (29) Word has length 174 [2022-11-25 22:35:01,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:35:01,062 INFO L225 Difference]: With dead ends: 4507 [2022-11-25 22:35:01,062 INFO L226 Difference]: Without dead ends: 2937 [2022-11-25 22:35:01,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=134, Invalid=516, Unknown=0, NotChecked=0, Total=650 [2022-11-25 22:35:01,071 INFO L413 NwaCegarLoop]: 1609 mSDtfsCounter, 1068 mSDsluCounter, 14779 mSDsCounter, 0 mSdLazyCounter, 3297 mSolverCounterSat, 482 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1179 SdHoareTripleChecker+Valid, 16388 SdHoareTripleChecker+Invalid, 3780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 482 IncrementalHoareTripleChecker+Valid, 3297 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.7s IncrementalHoareTripleChecker+Time [2022-11-25 22:35:01,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1179 Valid, 16388 Invalid, 3780 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [482 Valid, 3297 Invalid, 1 Unknown, 0 Unchecked, 27.7s Time] [2022-11-25 22:35:01,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2937 states. [2022-11-25 22:35:01,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2937 to 1586. [2022-11-25 22:35:01,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1586 states, 960 states have (on average 1.2708333333333333) internal successors, (1220), 987 states have internal predecessors, (1220), 491 states have call successors, (491), 131 states have call predecessors, (491), 132 states have return successors, (502), 486 states have call predecessors, (502), 489 states have call successors, (502) [2022-11-25 22:35:01,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1586 states to 1586 states and 2213 transitions. [2022-11-25 22:35:01,658 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 2213 transitions. Word has length 174 [2022-11-25 22:35:01,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:35:01,659 INFO L495 AbstractCegarLoop]: Abstraction has 1586 states and 2213 transitions. [2022-11-25 22:35:01,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 7.444444444444445) internal successors, (67), 11 states have internal predecessors, (67), 7 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 7 states have call predecessors, (29), 7 states have call successors, (29) [2022-11-25 22:35:01,659 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 2213 transitions. [2022-11-25 22:35:01,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2022-11-25 22:35:01,662 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:35:01,663 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:35:01,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-25 22:35:01,663 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2022-11-25 22:35:01,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:35:01,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1156726157, now seen corresponding path program 1 times [2022-11-25 22:35:01,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:35:01,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201800996] [2022-11-25 22:35:01,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:35:01,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:35:02,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:35:05,243 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 505 trivial. 0 not checked. [2022-11-25 22:35:05,243 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:35:05,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201800996] [2022-11-25 22:35:05,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201800996] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:35:05,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:35:05,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:35:05,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483905702] [2022-11-25 22:35:05,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:35:05,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:35:05,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:35:05,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:35:05,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:35:05,246 INFO L87 Difference]: Start difference. First operand 1586 states and 2213 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (42), 3 states have call predecessors, (42), 2 states have call successors, (42) [2022-11-25 22:35:07,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:35:10,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:35:14,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:35:14,439 INFO L93 Difference]: Finished difference Result 3158 states and 4405 transitions. [2022-11-25 22:35:14,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:35:14,439 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (42), 3 states have call predecessors, (42), 2 states have call successors, (42) Word has length 338 [2022-11-25 22:35:14,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:35:14,446 INFO L225 Difference]: With dead ends: 3158 [2022-11-25 22:35:14,446 INFO L226 Difference]: Without dead ends: 1590 [2022-11-25 22:35:14,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:35:14,454 INFO L413 NwaCegarLoop]: 1080 mSDtfsCounter, 0 mSDsluCounter, 3233 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4313 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2022-11-25 22:35:14,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4313 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 762 Invalid, 1 Unknown, 0 Unchecked, 8.8s Time] [2022-11-25 22:35:14,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1590 states. [2022-11-25 22:35:15,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1590 to 1590. [2022-11-25 22:35:15,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1590 states, 964 states have (on average 1.2697095435684647) internal successors, (1224), 989 states have internal predecessors, (1224), 491 states have call successors, (491), 131 states have call predecessors, (491), 132 states have return successors, (502), 488 states have call predecessors, (502), 489 states have call successors, (502) [2022-11-25 22:35:15,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1590 states to 1590 states and 2217 transitions. [2022-11-25 22:35:15,041 INFO L78 Accepts]: Start accepts. Automaton has 1590 states and 2217 transitions. Word has length 338 [2022-11-25 22:35:15,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:35:15,041 INFO L495 AbstractCegarLoop]: Abstraction has 1590 states and 2217 transitions. [2022-11-25 22:35:15,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (42), 3 states have call predecessors, (42), 2 states have call successors, (42) [2022-11-25 22:35:15,042 INFO L276 IsEmpty]: Start isEmpty. Operand 1590 states and 2217 transitions. [2022-11-25 22:35:15,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2022-11-25 22:35:15,050 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:35:15,051 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:35:15,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-25 22:35:15,051 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2022-11-25 22:35:15,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:35:15,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1230771613, now seen corresponding path program 1 times [2022-11-25 22:35:15,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:35:15,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964374684] [2022-11-25 22:35:15,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:35:15,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:35:25,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:35:29,148 INFO L134 CoverageAnalysis]: Checked inductivity of 583 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 582 trivial. 0 not checked. [2022-11-25 22:35:29,149 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:35:29,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964374684] [2022-11-25 22:35:29,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964374684] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:35:29,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1159538346] [2022-11-25 22:35:29,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:35:29,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:35:29,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:35:29,151 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:35:29,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 22:35:32,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:35:32,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 5214 conjuncts, 43 conjunts are in the unsatisfiable core [2022-11-25 22:35:32,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:35:33,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2022-11-25 22:35:33,517 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 46 [2022-11-25 22:35:33,528 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 40 [2022-11-25 22:35:33,564 INFO L134 CoverageAnalysis]: Checked inductivity of 583 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 583 trivial. 0 not checked. [2022-11-25 22:35:33,564 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:35:33,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1159538346] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:35:33,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 22:35:33,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 14 [2022-11-25 22:35:33,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666177648] [2022-11-25 22:35:33,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:35:33,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 22:35:33,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:35:33,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 22:35:33,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-25 22:35:33,568 INFO L87 Difference]: Start difference. First operand 1590 states and 2217 transitions. Second operand has 10 states, 7 states have (on average 13.428571428571429) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (43), 2 states have call predecessors, (43), 3 states have return successors, (42), 4 states have call predecessors, (42), 4 states have call successors, (42) [2022-11-25 22:35:45,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:35:53,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:35:53,650 INFO L93 Difference]: Finished difference Result 3174 states and 4425 transitions. [2022-11-25 22:35:53,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 22:35:53,651 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 13.428571428571429) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (43), 2 states have call predecessors, (43), 3 states have return successors, (42), 4 states have call predecessors, (42), 4 states have call successors, (42) Word has length 351 [2022-11-25 22:35:53,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:35:53,656 INFO L225 Difference]: With dead ends: 3174 [2022-11-25 22:35:53,656 INFO L226 Difference]: Without dead ends: 1602 [2022-11-25 22:35:53,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 347 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2022-11-25 22:35:53,663 INFO L413 NwaCegarLoop]: 1073 mSDtfsCounter, 18 mSDsluCounter, 8183 mSDsCounter, 0 mSdLazyCounter, 2168 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 9256 SdHoareTripleChecker+Invalid, 2173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2168 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:35:53,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 9256 Invalid, 2173 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 2168 Invalid, 1 Unknown, 0 Unchecked, 19.2s Time] [2022-11-25 22:35:53,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1602 states. [2022-11-25 22:35:54,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1602 to 1594. [2022-11-25 22:35:54,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1594 states, 967 states have (on average 1.2678386763185108) internal successors, (1226), 992 states have internal predecessors, (1226), 492 states have call successors, (492), 131 states have call predecessors, (492), 132 states have return successors, (503), 489 states have call predecessors, (503), 490 states have call successors, (503) [2022-11-25 22:35:54,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1594 states to 1594 states and 2221 transitions. [2022-11-25 22:35:54,099 INFO L78 Accepts]: Start accepts. Automaton has 1594 states and 2221 transitions. Word has length 351 [2022-11-25 22:35:54,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:35:54,099 INFO L495 AbstractCegarLoop]: Abstraction has 1594 states and 2221 transitions. [2022-11-25 22:35:54,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 13.428571428571429) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (43), 2 states have call predecessors, (43), 3 states have return successors, (42), 4 states have call predecessors, (42), 4 states have call successors, (42) [2022-11-25 22:35:54,100 INFO L276 IsEmpty]: Start isEmpty. Operand 1594 states and 2221 transitions. [2022-11-25 22:35:54,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2022-11-25 22:35:54,103 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:35:54,103 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:35:54,135 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-25 22:35:54,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa73d3e-3c9c-46f8-bda3-be52fd5bb3e9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:35:54,325 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2022-11-25 22:35:54,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:35:54,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1706431479, now seen corresponding path program 1 times [2022-11-25 22:35:54,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:35:54,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62206279] [2022-11-25 22:35:54,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:35:54,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:36:00,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:36:07,231 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 599 trivial. 0 not checked. [2022-11-25 22:36:07,232 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:36:07,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62206279] [2022-11-25 22:36:07,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62206279] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:36:07,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:36:07,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 22:36:07,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181181208] [2022-11-25 22:36:07,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:36:07,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 22:36:07,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:36:07,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 22:36:07,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-25 22:36:07,234 INFO L87 Difference]: Start difference. First operand 1594 states and 2221 transitions. Second operand has 10 states, 10 states have (on average 9.8) internal successors, (98), 9 states have internal predecessors, (98), 4 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (43), 4 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-25 22:36:12,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []