./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2d0073111a5c7b021bc76098b9f15e3306b34538df9d4af329dd19631f32f125 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 19:34:38,227 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 19:34:38,293 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-12-02 19:34:38,298 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 19:34:38,299 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 19:34:38,322 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 19:34:38,323 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 19:34:38,323 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 19:34:38,324 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 19:34:38,325 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 19:34:38,325 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 19:34:38,326 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 19:34:38,326 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 19:34:38,327 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 19:34:38,327 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 19:34:38,328 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 19:34:38,328 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 19:34:38,328 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 19:34:38,329 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 19:34:38,329 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 19:34:38,330 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 19:34:38,330 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 19:34:38,331 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 19:34:38,332 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 19:34:38,332 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 19:34:38,332 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 19:34:38,333 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 19:34:38,333 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 19:34:38,334 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 19:34:38,334 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 19:34:38,335 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 19:34:38,335 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 19:34:38,336 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 19:34:38,336 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 19:34:38,336 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:34:38,337 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 19:34:38,337 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 19:34:38,337 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 19:34:38,338 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 19:34:38,338 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 19:34:38,338 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 19:34:38,339 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 19:34:38,339 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 19:34:38,339 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 19:34:38,340 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d0073111a5c7b021bc76098b9f15e3306b34538df9d4af329dd19631f32f125 [2023-12-02 19:34:38,586 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 19:34:38,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 19:34:38,608 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 19:34:38,609 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 19:34:38,610 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 19:34:38,611 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i [2023-12-02 19:34:41,335 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 19:34:41,912 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 19:34:41,912 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i [2023-12-02 19:34:41,976 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/bin/utaipan-verify-nQ1chXbOIh/data/f5e792a3e/7f6e1ae8e1904ef58cf5cac9e2e7d8f6/FLAGa5287f928 [2023-12-02 19:34:41,990 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/bin/utaipan-verify-nQ1chXbOIh/data/f5e792a3e/7f6e1ae8e1904ef58cf5cac9e2e7d8f6 [2023-12-02 19:34:41,992 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 19:34:41,994 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 19:34:41,995 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 19:34:41,995 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 19:34:42,000 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 19:34:42,001 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:34:41" (1/1) ... [2023-12-02 19:34:42,002 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@791b90a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:34:42, skipping insertion in model container [2023-12-02 19:34:42,002 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:34:41" (1/1) ... [2023-12-02 19:34:42,270 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 19:34:49,630 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[659699,659712] [2023-12-02 19:34:49,634 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[659844,659857] [2023-12-02 19:34:49,634 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[659990,660003] [2023-12-02 19:34:49,635 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660155,660168] [2023-12-02 19:34:49,635 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660313,660326] [2023-12-02 19:34:49,636 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660471,660484] [2023-12-02 19:34:49,636 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660629,660642] [2023-12-02 19:34:49,637 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660789,660802] [2023-12-02 19:34:49,637 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660948,660961] [2023-12-02 19:34:49,637 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661087,661100] [2023-12-02 19:34:49,638 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661229,661242] [2023-12-02 19:34:49,638 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661378,661391] [2023-12-02 19:34:49,639 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661517,661530] [2023-12-02 19:34:49,639 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661672,661685] [2023-12-02 19:34:49,639 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661832,661845] [2023-12-02 19:34:49,640 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661983,661996] [2023-12-02 19:34:49,640 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662134,662147] [2023-12-02 19:34:49,641 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662286,662299] [2023-12-02 19:34:49,641 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662435,662448] [2023-12-02 19:34:49,641 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662583,662596] [2023-12-02 19:34:49,642 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662740,662753] [2023-12-02 19:34:49,642 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662889,662902] [2023-12-02 19:34:49,643 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663045,663058] [2023-12-02 19:34:49,643 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663198,663211] [2023-12-02 19:34:49,644 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663344,663357] [2023-12-02 19:34:49,644 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663487,663500] [2023-12-02 19:34:49,644 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663639,663652] [2023-12-02 19:34:49,645 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663785,663798] [2023-12-02 19:34:49,645 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663930,663943] [2023-12-02 19:34:49,661 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664084,664097] [2023-12-02 19:34:49,662 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664235,664248] [2023-12-02 19:34:49,662 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664390,664403] [2023-12-02 19:34:49,662 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664542,664555] [2023-12-02 19:34:49,662 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664697,664710] [2023-12-02 19:34:49,663 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664861,664874] [2023-12-02 19:34:49,663 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665017,665030] [2023-12-02 19:34:49,663 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665181,665194] [2023-12-02 19:34:49,664 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665323,665336] [2023-12-02 19:34:49,664 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665481,665494] [2023-12-02 19:34:49,665 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665648,665661] [2023-12-02 19:34:49,665 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665807,665820] [2023-12-02 19:34:49,666 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665966,665979] [2023-12-02 19:34:49,666 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666115,666128] [2023-12-02 19:34:49,666 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666262,666275] [2023-12-02 19:34:49,667 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666401,666414] [2023-12-02 19:34:49,667 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666564,666577] [2023-12-02 19:34:49,668 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666730,666743] [2023-12-02 19:34:49,668 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666894,666907] [2023-12-02 19:34:49,668 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667059,667072] [2023-12-02 19:34:49,669 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667224,667237] [2023-12-02 19:34:49,669 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667390,667403] [2023-12-02 19:34:49,670 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667555,667568] [2023-12-02 19:34:49,670 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667722,667735] [2023-12-02 19:34:49,671 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667882,667895] [2023-12-02 19:34:49,671 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668044,668057] [2023-12-02 19:34:49,671 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668203,668216] [2023-12-02 19:34:49,672 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668349,668362] [2023-12-02 19:34:49,672 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668492,668505] [2023-12-02 19:34:49,673 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668636,668649] [2023-12-02 19:34:49,673 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668779,668792] [2023-12-02 19:34:49,674 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668923,668936] [2023-12-02 19:34:49,674 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669064,669077] [2023-12-02 19:34:49,675 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669202,669215] [2023-12-02 19:34:49,675 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669360,669373] [2023-12-02 19:34:49,675 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669519,669532] [2023-12-02 19:34:49,676 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669675,669688] [2023-12-02 19:34:49,676 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669824,669837] [2023-12-02 19:34:49,676 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669976,669989] [2023-12-02 19:34:49,677 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670127,670140] [2023-12-02 19:34:49,677 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670276,670289] [2023-12-02 19:34:49,677 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670428,670441] [2023-12-02 19:34:49,678 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670576,670589] [2023-12-02 19:34:49,678 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670729,670742] [2023-12-02 19:34:49,679 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670880,670893] [2023-12-02 19:34:49,679 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671030,671043] [2023-12-02 19:34:49,679 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671177,671190] [2023-12-02 19:34:49,680 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671328,671341] [2023-12-02 19:34:49,680 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671479,671492] [2023-12-02 19:34:49,681 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671627,671640] [2023-12-02 19:34:49,681 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671793,671806] [2023-12-02 19:34:49,681 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671962,671975] [2023-12-02 19:34:49,681 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672129,672142] [2023-12-02 19:34:49,682 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672297,672310] [2023-12-02 19:34:49,682 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672447,672460] [2023-12-02 19:34:49,683 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672594,672607] [2023-12-02 19:34:49,683 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672755,672768] [2023-12-02 19:34:49,683 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672925,672938] [2023-12-02 19:34:49,683 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[673087,673100] [2023-12-02 19:34:49,710 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:34:49,747 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 19:34:49,838 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [6993] [2023-12-02 19:34:49,848 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7228] [2023-12-02 19:34:49,848 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7238] [2023-12-02 19:34:50,026 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [10916] [2023-12-02 19:34:50,026 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [10919] [2023-12-02 19:34:50,026 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [10922] [2023-12-02 19:34:50,026 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [10925] [2023-12-02 19:34:50,154 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [14183] [2023-12-02 19:34:50,155 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [14186] [2023-12-02 19:34:50,155 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [14189] [2023-12-02 19:34:50,155 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [14192] [2023-12-02 19:34:50,171 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" ((__u16 *)argp): "ebx"); [14971] [2023-12-02 19:34:50,171 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" ((__u16 *)argp): "ebx"); [14974] [2023-12-02 19:34:50,171 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" ((__u16 *)argp): "ebx"); [14977] [2023-12-02 19:34:50,171 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" ((__u16 *)argp): "ebx"); [14980] [2023-12-02 19:34:50,172 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" ((__u16 *)argp): "ebx"); [14983] [2023-12-02 19:34:50,172 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" ((__u32 *)argp): "ebx"); [15021-15022] [2023-12-02 19:34:50,173 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" ((__u32 *)argp): "ebx"); [15025-15026] [2023-12-02 19:34:50,173 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" ((__u32 *)argp): "ebx"); [15029-15030] [2023-12-02 19:34:50,173 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" ((__u32 *)argp): "ebx"); [15033-15034] [2023-12-02 19:34:50,173 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" ((__u32 *)argp): "ebx"); [15037-15038] [2023-12-02 19:34:50,174 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" ((u64 *)argp): "ebx"); [15076-15077] [2023-12-02 19:34:50,174 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" ((u64 *)argp): "ebx"); [15080-15081] [2023-12-02 19:34:50,174 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" ((u64 *)argp): "ebx"); [15084-15085] [2023-12-02 19:34:50,174 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" ((u64 *)argp): "ebx"); [15088-15089] [2023-12-02 19:34:50,174 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" ((u64 *)argp): "ebx"); [15092-15093] [2023-12-02 19:34:50,178 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" ((int *)argp): "ebx"); [15267-15268] [2023-12-02 19:34:50,178 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" ((int *)argp): "ebx"); [15271-15272] [2023-12-02 19:34:50,179 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" ((int *)argp): "ebx"); [15275-15276] [2023-12-02 19:34:50,179 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" ((int *)argp): "ebx"); [15279-15280] [2023-12-02 19:34:50,179 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" ((int *)argp): "ebx"); [15283-15284] [2023-12-02 19:34:50,179 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu), "=r" (__val_gu): "0" ((unsigned char *)argp), "i" (1UL)); [15297-15298] [2023-12-02 19:34:50,194 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%0": "+m" (vm_event_states.event[(unsigned int )item])); [16198] [2023-12-02 19:34:50,194 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%0": "+m" (vm_event_states.event[(unsigned int )item])); [16201] [2023-12-02 19:34:50,194 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%0": "+m" (vm_event_states.event[(unsigned int )item])); [16204] [2023-12-02 19:34:50,194 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%0": "+m" (vm_event_states.event[(unsigned int )item])); [16207] [2023-12-02 19:34:50,195 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%0": "+m" (vm_event_states.event[(unsigned int )item])); [16238] [2023-12-02 19:34:50,195 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%0": "+m" (vm_event_states.event[(unsigned int )item])); [16241] [2023-12-02 19:34:50,195 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%0": "+m" (vm_event_states.event[(unsigned int )item])); [16244] [2023-12-02 19:34:50,195 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%0": "+m" (vm_event_states.event[(unsigned int )item])); [16247] [2023-12-02 19:34:50,196 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%0": "+m" (vm_event_states.event[(unsigned int )item])); [16278] [2023-12-02 19:34:50,196 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%0": "+m" (vm_event_states.event[(unsigned int )item])); [16281] [2023-12-02 19:34:50,196 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%0": "+m" (vm_event_states.event[(unsigned int )item])); [16284] [2023-12-02 19:34:50,196 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%0": "+m" (vm_event_states.event[(unsigned int )item])); [16287] [2023-12-02 19:34:50,196 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%0": "+m" (vm_event_states.event[(unsigned int )item])); [16318] [2023-12-02 19:34:50,197 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%0": "+m" (vm_event_states.event[(unsigned int )item])); [16321] [2023-12-02 19:34:50,197 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%0": "+m" (vm_event_states.event[(unsigned int )item])); [16324] [2023-12-02 19:34:50,197 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%0": "+m" (vm_event_states.event[(unsigned int )item])); [16327] [2023-12-02 19:34:50,240 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [18595] [2023-12-02 19:34:50,240 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [18598] [2023-12-02 19:34:50,240 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [18601] [2023-12-02 19:34:50,241 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [18604] [2023-12-02 19:34:50,362 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[659699,659712] [2023-12-02 19:34:50,363 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[659844,659857] [2023-12-02 19:34:50,363 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[659990,660003] [2023-12-02 19:34:50,363 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660155,660168] [2023-12-02 19:34:50,364 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660313,660326] [2023-12-02 19:34:50,364 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660471,660484] [2023-12-02 19:34:50,364 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660629,660642] [2023-12-02 19:34:50,364 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660789,660802] [2023-12-02 19:34:50,365 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660948,660961] [2023-12-02 19:34:50,365 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661087,661100] [2023-12-02 19:34:50,365 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661229,661242] [2023-12-02 19:34:50,366 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661378,661391] [2023-12-02 19:34:50,366 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661517,661530] [2023-12-02 19:34:50,366 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661672,661685] [2023-12-02 19:34:50,367 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661832,661845] [2023-12-02 19:34:50,367 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661983,661996] [2023-12-02 19:34:50,367 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662134,662147] [2023-12-02 19:34:50,368 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662286,662299] [2023-12-02 19:34:50,368 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662435,662448] [2023-12-02 19:34:50,368 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662583,662596] [2023-12-02 19:34:50,368 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662740,662753] [2023-12-02 19:34:50,369 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662889,662902] [2023-12-02 19:34:50,369 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663045,663058] [2023-12-02 19:34:50,369 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663198,663211] [2023-12-02 19:34:50,369 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663344,663357] [2023-12-02 19:34:50,370 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663487,663500] [2023-12-02 19:34:50,370 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663639,663652] [2023-12-02 19:34:50,370 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663785,663798] [2023-12-02 19:34:50,371 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663930,663943] [2023-12-02 19:34:50,371 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664084,664097] [2023-12-02 19:34:50,371 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664235,664248] [2023-12-02 19:34:50,371 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664390,664403] [2023-12-02 19:34:50,372 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664542,664555] [2023-12-02 19:34:50,372 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664697,664710] [2023-12-02 19:34:50,372 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664861,664874] [2023-12-02 19:34:50,373 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665017,665030] [2023-12-02 19:34:50,373 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665181,665194] [2023-12-02 19:34:50,373 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665323,665336] [2023-12-02 19:34:50,374 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665481,665494] [2023-12-02 19:34:50,374 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665648,665661] [2023-12-02 19:34:50,374 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665807,665820] [2023-12-02 19:34:50,375 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665966,665979] [2023-12-02 19:34:50,375 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666115,666128] [2023-12-02 19:34:50,376 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666262,666275] [2023-12-02 19:34:50,376 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666401,666414] [2023-12-02 19:34:50,376 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666564,666577] [2023-12-02 19:34:50,376 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666730,666743] [2023-12-02 19:34:50,377 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666894,666907] [2023-12-02 19:34:50,377 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667059,667072] [2023-12-02 19:34:50,377 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667224,667237] [2023-12-02 19:34:50,378 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667390,667403] [2023-12-02 19:34:50,378 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667555,667568] [2023-12-02 19:34:50,378 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667722,667735] [2023-12-02 19:34:50,379 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667882,667895] [2023-12-02 19:34:50,379 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668044,668057] [2023-12-02 19:34:50,379 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668203,668216] [2023-12-02 19:34:50,380 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668349,668362] [2023-12-02 19:34:50,380 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668492,668505] [2023-12-02 19:34:50,380 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668636,668649] [2023-12-02 19:34:50,381 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668779,668792] [2023-12-02 19:34:50,381 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668923,668936] [2023-12-02 19:34:50,381 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669064,669077] [2023-12-02 19:34:50,382 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669202,669215] [2023-12-02 19:34:50,382 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669360,669373] [2023-12-02 19:34:50,382 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669519,669532] [2023-12-02 19:34:50,383 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669675,669688] [2023-12-02 19:34:50,383 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669824,669837] [2023-12-02 19:34:50,383 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669976,669989] [2023-12-02 19:34:50,384 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670127,670140] [2023-12-02 19:34:50,384 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670276,670289] [2023-12-02 19:34:50,384 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670428,670441] [2023-12-02 19:34:50,385 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670576,670589] [2023-12-02 19:34:50,385 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670729,670742] [2023-12-02 19:34:50,385 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670880,670893] [2023-12-02 19:34:50,386 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671030,671043] [2023-12-02 19:34:50,386 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671177,671190] [2023-12-02 19:34:50,386 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671328,671341] [2023-12-02 19:34:50,387 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671479,671492] [2023-12-02 19:34:50,387 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671627,671640] [2023-12-02 19:34:50,387 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671793,671806] [2023-12-02 19:34:50,388 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671962,671975] [2023-12-02 19:34:50,388 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672129,672142] [2023-12-02 19:34:50,388 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672297,672310] [2023-12-02 19:34:50,388 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672447,672460] [2023-12-02 19:34:50,389 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672594,672607] [2023-12-02 19:34:50,389 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672755,672768] [2023-12-02 19:34:50,389 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672925,672938] [2023-12-02 19:34:50,390 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[673087,673100] [2023-12-02 19:34:50,397 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:34:50,825 WARN L675 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:34:50,825 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:34:50,825 WARN L675 CHandler]: The function __bad_size_call_parameter is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:34:50,825 WARN L675 CHandler]: The function strncpy is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:34:50,825 WARN L675 CHandler]: The function __bad_unaligned_access_size is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:34:50,826 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:34:50,833 INFO L206 MainTranslator]: Completed translation [2023-12-02 19:34:50,834 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:34:50 WrapperNode [2023-12-02 19:34:50,834 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 19:34:50,835 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 19:34:50,836 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 19:34:50,836 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 19:34:50,843 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:34:50" (1/1) ... [2023-12-02 19:34:51,119 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:34:50" (1/1) ... [2023-12-02 19:34:51,434 INFO L138 Inliner]: procedures = 981, calls = 6499, calls flagged for inlining = 457, calls inlined = 329, statements flattened = 13627 [2023-12-02 19:34:51,434 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 19:34:51,435 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 19:34:51,435 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 19:34:51,435 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 19:34:51,444 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:34:50" (1/1) ... [2023-12-02 19:34:51,444 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:34:50" (1/1) ... [2023-12-02 19:34:51,526 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:34:50" (1/1) ... [2023-12-02 19:34:51,528 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:34:50" (1/1) ... [2023-12-02 19:34:51,717 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:34:50" (1/1) ... [2023-12-02 19:34:51,751 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:34:50" (1/1) ... [2023-12-02 19:34:51,831 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:34:50" (1/1) ... [2023-12-02 19:34:51,855 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:34:50" (1/1) ... [2023-12-02 19:34:52,017 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 19:34:52,018 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 19:34:52,018 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 19:34:52,018 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 19:34:52,019 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:34:50" (1/1) ... [2023-12-02 19:34:52,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:34:52,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:34:52,054 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 19:34:52,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 19:34:52,091 INFO L130 BoogieDeclarations]: Found specification of procedure dput [2023-12-02 19:34:52,092 INFO L138 BoogieDeclarations]: Found implementation of procedure dput [2023-12-02 19:34:52,092 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-12-02 19:34:52,092 INFO L130 BoogieDeclarations]: Found specification of procedure i_size_read [2023-12-02 19:34:52,092 INFO L138 BoogieDeclarations]: Found implementation of procedure i_size_read [2023-12-02 19:34:52,092 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_DeleteNSEntry [2023-12-02 19:34:52,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_DeleteNSEntry [2023-12-02 19:34:52,092 INFO L130 BoogieDeclarations]: Found specification of procedure ncp__io2vol [2023-12-02 19:34:52,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp__io2vol [2023-12-02 19:34:52,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2023-12-02 19:34:52,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2023-12-02 19:34:52,092 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_update_dates [2023-12-02 19:34:52,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_update_dates [2023-12-02 19:34:52,093 INFO L130 BoogieDeclarations]: Found specification of procedure __ncp_start_request [2023-12-02 19:34:52,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __ncp_start_request [2023-12-02 19:34:52,093 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2023-12-02 19:34:52,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2023-12-02 19:34:52,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-12-02 19:34:52,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-12-02 19:34:52,093 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_obtain_info [2023-12-02 19:34:52,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_obtain_info [2023-12-02 19:34:52,093 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_file_write [2023-12-02 19:34:52,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_file_write [2023-12-02 19:34:52,094 INFO L130 BoogieDeclarations]: Found specification of procedure new_encode_dev [2023-12-02 19:34:52,094 INFO L138 BoogieDeclarations]: Found implementation of procedure new_encode_dev [2023-12-02 19:34:52,094 INFO L130 BoogieDeclarations]: Found specification of procedure sign_packet [2023-12-02 19:34:52,094 INFO L138 BoogieDeclarations]: Found implementation of procedure sign_packet [2023-12-02 19:34:52,094 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_file_mmap_fault [2023-12-02 19:34:52,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_file_mmap_fault [2023-12-02 19:34:52,094 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_obtain_nfs_info [2023-12-02 19:34:52,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_obtain_nfs_info [2023-12-02 19:34:52,094 INFO L130 BoogieDeclarations]: Found specification of procedure grab_cache_page [2023-12-02 19:34:52,094 INFO L138 BoogieDeclarations]: Found implementation of procedure grab_cache_page [2023-12-02 19:34:52,094 INFO L130 BoogieDeclarations]: Found specification of procedure get_current___1 [2023-12-02 19:34:52,095 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current___1 [2023-12-02 19:34:52,095 INFO L130 BoogieDeclarations]: Found specification of procedure get_current___0 [2023-12-02 19:34:52,095 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current___0 [2023-12-02 19:34:52,095 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_make_open [2023-12-02 19:34:52,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_make_open [2023-12-02 19:34:52,095 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-12-02 19:34:52,095 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-12-02 19:34:52,095 INFO L130 BoogieDeclarations]: Found specification of procedure fput [2023-12-02 19:34:52,095 INFO L138 BoogieDeclarations]: Found implementation of procedure fput [2023-12-02 19:34:52,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2023-12-02 19:34:52,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2023-12-02 19:34:52,096 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2023-12-02 19:34:52,096 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2023-12-02 19:34:52,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-12-02 19:34:52,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-12-02 19:34:52,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2023-12-02 19:34:52,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2023-12-02 19:34:52,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 19:34:52,097 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_ioctl [2023-12-02 19:34:52,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_ioctl [2023-12-02 19:34:52,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2023-12-02 19:34:52,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2023-12-02 19:34:52,097 INFO L130 BoogieDeclarations]: Found specification of procedure kmap [2023-12-02 19:34:52,098 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap [2023-12-02 19:34:52,098 INFO L130 BoogieDeclarations]: Found specification of procedure iunique [2023-12-02 19:34:52,098 INFO L138 BoogieDeclarations]: Found implementation of procedure iunique [2023-12-02 19:34:52,098 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_reply_le16 [2023-12-02 19:34:52,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_reply_le16 [2023-12-02 19:34:52,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-12-02 19:34:52,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-12-02 19:34:52,099 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_statfs [2023-12-02 19:34:52,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_statfs [2023-12-02 19:34:52,099 INFO L130 BoogieDeclarations]: Found specification of procedure assert_server_locked [2023-12-02 19:34:52,099 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_server_locked [2023-12-02 19:34:52,099 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-12-02 19:34:52,099 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-12-02 19:34:52,100 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_write_kernel [2023-12-02 19:34:52,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_write_kernel [2023-12-02 19:34:52,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2023-12-02 19:34:52,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2023-12-02 19:34:52,100 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_reply_byte [2023-12-02 19:34:52,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_reply_byte [2023-12-02 19:34:52,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 19:34:52,101 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2023-12-02 19:34:52,101 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2023-12-02 19:34:52,101 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~wchar_t~0~X~$Pointer$~X~int~TO~int [2023-12-02 19:34:52,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~wchar_t~0~X~$Pointer$~X~int~TO~int [2023-12-02 19:34:52,101 INFO L130 BoogieDeclarations]: Found specification of procedure i_size_write [2023-12-02 19:34:52,101 INFO L138 BoogieDeclarations]: Found implementation of procedure i_size_write [2023-12-02 19:34:52,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2023-12-02 19:34:52,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2023-12-02 19:34:52,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 19:34:52,102 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_destroy_inode [2023-12-02 19:34:52,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_destroy_inode [2023-12-02 19:34:52,102 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_update_attrs [2023-12-02 19:34:52,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_update_attrs [2023-12-02 19:34:52,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-12-02 19:34:52,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-12-02 19:34:52,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 19:34:52,103 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-12-02 19:34:52,103 INFO L130 BoogieDeclarations]: Found specification of procedure bdi_destroy [2023-12-02 19:34:52,103 INFO L138 BoogieDeclarations]: Found implementation of procedure bdi_destroy [2023-12-02 19:34:52,103 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2023-12-02 19:34:52,103 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2023-12-02 19:34:52,103 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_get_volume_root [2023-12-02 19:34:52,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_get_volume_root [2023-12-02 19:34:52,103 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-12-02 19:34:52,103 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-12-02 19:34:52,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_ncp_server [2023-12-02 19:34:52,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_ncp_server [2023-12-02 19:34:52,104 INFO L130 BoogieDeclarations]: Found specification of procedure unload_nls [2023-12-02 19:34:52,104 INFO L138 BoogieDeclarations]: Found implementation of procedure unload_nls [2023-12-02 19:34:52,104 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_request [2023-12-02 19:34:52,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_request [2023-12-02 19:34:52,104 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_date_dos2unix [2023-12-02 19:34:52,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_date_dos2unix [2023-12-02 19:34:52,104 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_new_dentry [2023-12-02 19:34:52,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_new_dentry [2023-12-02 19:34:52,104 INFO L130 BoogieDeclarations]: Found specification of procedure recalc_sigpending [2023-12-02 19:34:52,104 INFO L138 BoogieDeclarations]: Found implementation of procedure recalc_sigpending [2023-12-02 19:34:52,105 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-12-02 19:34:52,105 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-12-02 19:34:52,105 INFO L130 BoogieDeclarations]: Found specification of procedure nls_tolower [2023-12-02 19:34:52,105 INFO L138 BoogieDeclarations]: Found implementation of procedure nls_tolower [2023-12-02 19:34:52,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 19:34:52,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 19:34:52,105 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-12-02 19:34:52,105 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-12-02 19:34:52,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_open_mutex_of_ncp_inode_info [2023-12-02 19:34:52,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_open_mutex_of_ncp_inode_info [2023-12-02 19:34:52,106 INFO L130 BoogieDeclarations]: Found specification of procedure unlock_page [2023-12-02 19:34:52,106 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock_page [2023-12-02 19:34:52,106 INFO L130 BoogieDeclarations]: Found specification of procedure __kuid_val [2023-12-02 19:34:52,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __kuid_val [2023-12-02 19:34:52,106 INFO L130 BoogieDeclarations]: Found specification of procedure dir_emit [2023-12-02 19:34:52,106 INFO L138 BoogieDeclarations]: Found implementation of procedure dir_emit [2023-12-02 19:34:52,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-12-02 19:34:52,106 INFO L130 BoogieDeclarations]: Found specification of procedure release_sock [2023-12-02 19:34:52,106 INFO L138 BoogieDeclarations]: Found implementation of procedure release_sock [2023-12-02 19:34:52,106 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2023-12-02 19:34:52,107 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2023-12-02 19:34:52,107 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2023-12-02 19:34:52,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_146 [2023-12-02 19:34:52,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_146 [2023-12-02 19:34:52,107 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_rmdir [2023-12-02 19:34:52,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_rmdir [2023-12-02 19:34:52,107 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2023-12-02 19:34:52,107 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2023-12-02 19:34:52,107 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_file_read [2023-12-02 19:34:52,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_file_read [2023-12-02 19:34:52,107 INFO L130 BoogieDeclarations]: Found specification of procedure d_instantiate [2023-12-02 19:34:52,107 INFO L138 BoogieDeclarations]: Found implementation of procedure d_instantiate [2023-12-02 19:34:52,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_i_mutex_of_inode [2023-12-02 19:34:52,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_i_mutex_of_inode [2023-12-02 19:34:52,108 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_compat_ioctl [2023-12-02 19:34:52,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_compat_ioctl [2023-12-02 19:34:52,108 INFO L130 BoogieDeclarations]: Found specification of procedure WSET_LH [2023-12-02 19:34:52,108 INFO L138 BoogieDeclarations]: Found implementation of procedure WSET_LH [2023-12-02 19:34:52,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-12-02 19:34:52,108 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-12-02 19:34:52,108 INFO L130 BoogieDeclarations]: Found specification of procedure setattr_copy [2023-12-02 19:34:52,108 INFO L138 BoogieDeclarations]: Found implementation of procedure setattr_copy [2023-12-02 19:34:52,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2023-12-02 19:34:52,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2023-12-02 19:34:52,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_for_read_section [2023-12-02 19:34:52,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_for_read_section [2023-12-02 19:34:52,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2023-12-02 19:34:52,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2023-12-02 19:34:52,109 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_reply_data [2023-12-02 19:34:52,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_reply_data [2023-12-02 19:34:52,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 19:34:52,109 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-12-02 19:34:52,109 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-12-02 19:34:52,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2023-12-02 19:34:52,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2023-12-02 19:34:52,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 19:34:52,110 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2023-12-02 19:34:52,110 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2023-12-02 19:34:52,110 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_d_prune [2023-12-02 19:34:52,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_d_prune [2023-12-02 19:34:52,110 INFO L130 BoogieDeclarations]: Found specification of procedure lock_sock [2023-12-02 19:34:52,110 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_sock [2023-12-02 19:34:52,111 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_byte [2023-12-02 19:34:52,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_byte [2023-12-02 19:34:52,111 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_init_header [2023-12-02 19:34:52,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_init_header [2023-12-02 19:34:52,111 INFO L130 BoogieDeclarations]: Found specification of procedure pagecache_get_page [2023-12-02 19:34:52,111 INFO L138 BoogieDeclarations]: Found implementation of procedure pagecache_get_page [2023-12-02 19:34:52,111 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_mem [2023-12-02 19:34:52,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_mem [2023-12-02 19:34:52,112 INFO L130 BoogieDeclarations]: Found specification of procedure kill_anon_super [2023-12-02 19:34:52,112 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_anon_super [2023-12-02 19:34:52,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_root_setup_lock_of_ncp_server [2023-12-02 19:34:52,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_root_setup_lock_of_ncp_server [2023-12-02 19:34:52,112 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_is_server_root [2023-12-02 19:34:52,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_is_server_root [2023-12-02 19:34:52,113 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_is_nfs_extras [2023-12-02 19:34:52,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_is_nfs_extras [2023-12-02 19:34:52,113 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_release [2023-12-02 19:34:52,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_release [2023-12-02 19:34:52,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2023-12-02 19:34:52,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2023-12-02 19:34:52,113 INFO L130 BoogieDeclarations]: Found specification of procedure ncpdgram_send [2023-12-02 19:34:52,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ncpdgram_send [2023-12-02 19:34:52,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2023-12-02 19:34:52,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2023-12-02 19:34:52,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2023-12-02 19:34:52,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2023-12-02 19:34:52,114 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_inode_close [2023-12-02 19:34:52,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_inode_close [2023-12-02 19:34:52,114 INFO L130 BoogieDeclarations]: Found specification of procedure NCP_FINFO [2023-12-02 19:34:52,114 INFO L138 BoogieDeclarations]: Found implementation of procedure NCP_FINFO [2023-12-02 19:34:52,114 INFO L130 BoogieDeclarations]: Found specification of procedure ncp__vol2io [2023-12-02 19:34:52,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp__vol2io [2023-12-02 19:34:52,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_creq_mutex_of_NOT_ARG_SIGN [2023-12-02 19:34:52,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_creq_mutex_of_NOT_ARG_SIGN [2023-12-02 19:34:52,115 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_RenameNSEntry [2023-12-02 19:34:52,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_RenameNSEntry [2023-12-02 19:34:52,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_i_mutex_of_inode [2023-12-02 19:34:52,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_i_mutex_of_inode [2023-12-02 19:34:52,115 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be16 [2023-12-02 19:34:52,115 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be16 [2023-12-02 19:34:52,116 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_notify_change [2023-12-02 19:34:52,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_notify_change [2023-12-02 19:34:52,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_75 [2023-12-02 19:34:52,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_75 [2023-12-02 19:34:52,116 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_reply_dword [2023-12-02 19:34:52,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_reply_dword [2023-12-02 19:34:52,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2023-12-02 19:34:52,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2023-12-02 19:34:52,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 19:34:52,116 INFO L130 BoogieDeclarations]: Found specification of procedure mark_inode_dirty [2023-12-02 19:34:52,116 INFO L138 BoogieDeclarations]: Found implementation of procedure mark_inode_dirty [2023-12-02 19:34:52,117 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_update_inode [2023-12-02 19:34:52,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_update_inode [2023-12-02 19:34:52,117 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_del_file_or_subdir [2023-12-02 19:34:52,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_del_file_or_subdir [2023-12-02 19:34:52,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-12-02 19:34:52,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-12-02 19:34:52,117 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_create_new [2023-12-02 19:34:52,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_create_new [2023-12-02 19:34:52,117 INFO L130 BoogieDeclarations]: Found specification of procedure __kgid_val [2023-12-02 19:34:52,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __kgid_val [2023-12-02 19:34:52,117 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2023-12-02 19:34:52,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2023-12-02 19:34:52,118 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_init_request [2023-12-02 19:34:52,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_init_request [2023-12-02 19:34:52,118 INFO L130 BoogieDeclarations]: Found specification of procedure PageUptodate [2023-12-02 19:34:52,118 INFO L138 BoogieDeclarations]: Found implementation of procedure PageUptodate [2023-12-02 19:34:52,118 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2023-12-02 19:34:52,118 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2023-12-02 19:34:52,118 INFO L130 BoogieDeclarations]: Found specification of procedure kunmap [2023-12-02 19:34:52,118 INFO L138 BoogieDeclarations]: Found implementation of procedure kunmap [2023-12-02 19:34:52,118 INFO L130 BoogieDeclarations]: Found specification of procedure NCP_SBP [2023-12-02 19:34:52,118 INFO L138 BoogieDeclarations]: Found implementation of procedure NCP_SBP [2023-12-02 19:34:52,118 INFO L130 BoogieDeclarations]: Found specification of procedure memdup_user [2023-12-02 19:34:52,118 INFO L138 BoogieDeclarations]: Found implementation of procedure memdup_user [2023-12-02 19:34:52,118 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_hash_dentry [2023-12-02 19:34:52,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_hash_dentry [2023-12-02 19:34:52,119 INFO L130 BoogieDeclarations]: Found specification of procedure load_nls_default [2023-12-02 19:34:52,119 INFO L138 BoogieDeclarations]: Found implementation of procedure load_nls_default [2023-12-02 19:34:52,119 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2023-12-02 19:34:52,119 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2023-12-02 19:34:52,119 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_open_create_file_or_subdir [2023-12-02 19:34:52,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_open_create_file_or_subdir [2023-12-02 19:34:52,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2023-12-02 19:34:52,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2023-12-02 19:34:52,119 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2023-12-02 19:34:52,119 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2023-12-02 19:34:52,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-12-02 19:34:52,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-12-02 19:34:52,120 INFO L130 BoogieDeclarations]: Found specification of procedure WVAL_LH___0 [2023-12-02 19:34:52,120 INFO L138 BoogieDeclarations]: Found implementation of procedure WVAL_LH___0 [2023-12-02 19:34:52,120 INFO L130 BoogieDeclarations]: Found specification of procedure d_rehash [2023-12-02 19:34:52,120 INFO L138 BoogieDeclarations]: Found implementation of procedure d_rehash [2023-12-02 19:34:52,120 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_evict_inode [2023-12-02 19:34:52,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_evict_inode [2023-12-02 19:34:52,120 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_show_options [2023-12-02 19:34:52,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_show_options [2023-12-02 19:34:52,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2023-12-02 19:34:52,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2023-12-02 19:34:52,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2023-12-02 19:34:52,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2023-12-02 19:34:52,121 INFO L130 BoogieDeclarations]: Found specification of procedure generic_file_llseek [2023-12-02 19:34:52,121 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_file_llseek [2023-12-02 19:34:52,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_before_release_sock [2023-12-02 19:34:52,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_before_release_sock [2023-12-02 19:34:52,121 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_reply_be16 [2023-12-02 19:34:52,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_reply_be16 [2023-12-02 19:34:52,121 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_make_closed [2023-12-02 19:34:52,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_make_closed [2023-12-02 19:34:52,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-12-02 19:34:52,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-12-02 19:34:52,121 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_del_file_or_subdir2 [2023-12-02 19:34:52,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_del_file_or_subdir2 [2023-12-02 19:34:52,122 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_modify_nfs_info [2023-12-02 19:34:52,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_modify_nfs_info [2023-12-02 19:34:52,122 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_case_sensitive [2023-12-02 19:34:52,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_case_sensitive [2023-12-02 19:34:52,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-12-02 19:34:52,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-12-02 19:34:52,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2023-12-02 19:34:52,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2023-12-02 19:34:52,122 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_inodecache [2023-12-02 19:34:52,122 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_inodecache [2023-12-02 19:34:52,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 19:34:52,122 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~~loff_t~0~X~~u64~0~X~int~TO~int [2023-12-02 19:34:52,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~~loff_t~0~X~~u64~0~X~int~TO~int [2023-12-02 19:34:52,122 INFO L130 BoogieDeclarations]: Found specification of procedure __ncp_abort_request [2023-12-02 19:34:52,123 INFO L138 BoogieDeclarations]: Found implementation of procedure __ncp_abort_request [2023-12-02 19:34:52,123 INFO L130 BoogieDeclarations]: Found specification of procedure from_kuid_munged [2023-12-02 19:34:52,123 INFO L138 BoogieDeclarations]: Found implementation of procedure from_kuid_munged [2023-12-02 19:34:52,123 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_unaligned_access_size [2023-12-02 19:34:52,123 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_word [2023-12-02 19:34:52,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_word [2023-12-02 19:34:52,123 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_dword_lh [2023-12-02 19:34:52,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_dword_lh [2023-12-02 19:34:52,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-12-02 19:34:52,123 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_do_request [2023-12-02 19:34:52,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_do_request [2023-12-02 19:34:52,123 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-12-02 19:34:52,123 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-12-02 19:34:52,124 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_inode_close___3 [2023-12-02 19:34:52,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_inode_close___3 [2023-12-02 19:34:52,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-02 19:34:52,124 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_date_unix2dos [2023-12-02 19:34:52,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_date_unix2dos [2023-12-02 19:34:52,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2023-12-02 19:34:52,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2023-12-02 19:34:52,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2023-12-02 19:34:52,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2023-12-02 19:34:52,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-12-02 19:34:52,124 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-12-02 19:34:52,124 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_ren_or_mov_file_or_subdir [2023-12-02 19:34:52,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_ren_or_mov_file_or_subdir [2023-12-02 19:34:52,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2023-12-02 19:34:52,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2023-12-02 19:34:52,125 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_destroy [2023-12-02 19:34:52,125 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_destroy [2023-12-02 19:34:52,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_creq_mutex_of_NOT_ARG_SIGN [2023-12-02 19:34:52,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_creq_mutex_of_NOT_ARG_SIGN [2023-12-02 19:34:52,125 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_request2 [2023-12-02 19:34:52,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_request2 [2023-12-02 19:34:52,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-12-02 19:34:52,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-12-02 19:34:52,125 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_init_request_s [2023-12-02 19:34:52,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_init_request_s [2023-12-02 19:34:52,125 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2023-12-02 19:34:52,125 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2023-12-02 19:34:52,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2023-12-02 19:34:52,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2023-12-02 19:34:52,126 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_lock_server [2023-12-02 19:34:52,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_lock_server [2023-12-02 19:34:52,126 INFO L130 BoogieDeclarations]: Found specification of procedure DSET_LH [2023-12-02 19:34:52,126 INFO L138 BoogieDeclarations]: Found implementation of procedure DSET_LH [2023-12-02 19:34:52,126 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_close_file [2023-12-02 19:34:52,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_close_file [2023-12-02 19:34:52,126 INFO L130 BoogieDeclarations]: Found specification of procedure nwsign [2023-12-02 19:34:52,126 INFO L138 BoogieDeclarations]: Found implementation of procedure nwsign [2023-12-02 19:34:52,126 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2023-12-02 19:34:52,126 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2023-12-02 19:34:52,126 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_update_known_namespace [2023-12-02 19:34:52,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_update_known_namespace [2023-12-02 19:34:52,127 INFO L130 BoogieDeclarations]: Found specification of procedure load_nls [2023-12-02 19:34:52,127 INFO L138 BoogieDeclarations]: Found implementation of procedure load_nls [2023-12-02 19:34:52,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_net_sock__double_release [2023-12-02 19:34:52,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_net_sock__double_release [2023-12-02 19:34:52,127 INFO L130 BoogieDeclarations]: Found specification of procedure DVAL_LH___0 [2023-12-02 19:34:52,127 INFO L138 BoogieDeclarations]: Found implementation of procedure DVAL_LH___0 [2023-12-02 19:34:52,127 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_readdir [2023-12-02 19:34:52,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_readdir [2023-12-02 19:34:52,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2023-12-02 19:34:52,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2023-12-02 19:34:52,127 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2023-12-02 19:34:52,127 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2023-12-02 19:34:52,127 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_read_kernel [2023-12-02 19:34:52,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_read_kernel [2023-12-02 19:34:52,128 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2023-12-02 19:34:52,128 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2023-12-02 19:34:52,128 INFO L130 BoogieDeclarations]: Found specification of procedure rol32 [2023-12-02 19:34:52,128 INFO L138 BoogieDeclarations]: Found implementation of procedure rol32 [2023-12-02 19:34:52,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-12-02 19:34:52,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-12-02 19:34:52,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-12-02 19:34:52,128 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2023-12-02 19:34:52,128 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2023-12-02 19:34:52,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-12-02 19:34:52,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-12-02 19:34:52,128 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_disconnect [2023-12-02 19:34:52,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_disconnect [2023-12-02 19:34:52,129 INFO L130 BoogieDeclarations]: Found specification of procedure inode_permission [2023-12-02 19:34:52,129 INFO L138 BoogieDeclarations]: Found implementation of procedure inode_permission [2023-12-02 19:34:52,129 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_extract_file_info [2023-12-02 19:34:52,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_extract_file_info [2023-12-02 19:34:52,129 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_modify_file_or_subdir_dos_info_path [2023-12-02 19:34:52,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_modify_file_or_subdir_dos_info_path [2023-12-02 19:34:52,129 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_put_super [2023-12-02 19:34:52,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_put_super [2023-12-02 19:34:52,129 INFO L130 BoogieDeclarations]: Found specification of procedure seq_printf [2023-12-02 19:34:52,129 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_printf [2023-12-02 19:34:52,129 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_lookup_volume [2023-12-02 19:34:52,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_lookup_volume [2023-12-02 19:34:52,129 INFO L130 BoogieDeclarations]: Found specification of procedure __ncptcp_try_send [2023-12-02 19:34:52,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __ncptcp_try_send [2023-12-02 19:34:52,130 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2023-12-02 19:34:52,130 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2023-12-02 19:34:52,130 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-12-02 19:34:52,130 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-12-02 19:34:52,130 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_mmap [2023-12-02 19:34:52,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_mmap [2023-12-02 19:34:52,130 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_be16 [2023-12-02 19:34:52,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_be16 [2023-12-02 19:34:52,130 INFO L130 BoogieDeclarations]: Found specification of procedure do_send [2023-12-02 19:34:52,130 INFO L138 BoogieDeclarations]: Found implementation of procedure do_send [2023-12-02 19:34:52,130 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2023-12-02 19:34:52,130 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2023-12-02 19:34:52,130 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_pstring [2023-12-02 19:34:52,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_pstring [2023-12-02 19:34:52,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_root_setup_lock_of_ncp_server [2023-12-02 19:34:52,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_root_setup_lock_of_ncp_server [2023-12-02 19:34:52,131 INFO L130 BoogieDeclarations]: Found specification of procedure generic_read_dir [2023-12-02 19:34:52,131 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_read_dir [2023-12-02 19:34:52,131 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_obtain_mtime [2023-12-02 19:34:52,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_obtain_mtime [2023-12-02 19:34:52,131 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_unlink [2023-12-02 19:34:52,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_unlink [2023-12-02 19:34:52,131 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_dword [2023-12-02 19:34:52,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_dword [2023-12-02 19:34:52,131 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2023-12-02 19:34:52,131 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2023-12-02 19:34:52,131 INFO L130 BoogieDeclarations]: Found specification of procedure file_accessed [2023-12-02 19:34:52,132 INFO L138 BoogieDeclarations]: Found implementation of procedure file_accessed [2023-12-02 19:34:52,132 INFO L130 BoogieDeclarations]: Found specification of procedure put_pid [2023-12-02 19:34:52,132 INFO L138 BoogieDeclarations]: Found implementation of procedure put_pid [2023-12-02 19:34:52,132 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_age_dentry [2023-12-02 19:34:52,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_age_dentry [2023-12-02 19:34:52,132 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_handle_path [2023-12-02 19:34:52,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_handle_path [2023-12-02 19:34:52,132 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2023-12-02 19:34:52,132 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2023-12-02 19:34:52,132 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2023-12-02 19:34:52,132 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2023-12-02 19:34:52,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 19:34:52,132 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-12-02 19:34:52,132 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-12-02 19:34:52,132 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-12-02 19:34:52,133 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-12-02 19:34:52,133 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-12-02 19:34:52,133 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-12-02 19:34:52,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2023-12-02 19:34:52,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2023-12-02 19:34:52,133 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_iget [2023-12-02 19:34:52,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_iget [2023-12-02 19:34:52,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-12-02 19:34:52,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-12-02 19:34:52,133 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_fill_cache [2023-12-02 19:34:52,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_fill_cache [2023-12-02 19:34:52,133 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_stop_tasks [2023-12-02 19:34:52,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_stop_tasks [2023-12-02 19:34:52,133 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_update_dirent [2023-12-02 19:34:52,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_update_dirent [2023-12-02 19:34:52,134 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_instantiate [2023-12-02 19:34:52,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_instantiate [2023-12-02 19:34:52,134 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_single_volume [2023-12-02 19:34:52,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_single_volume [2023-12-02 19:34:52,134 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_symlink_readpage [2023-12-02 19:34:52,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_symlink_readpage [2023-12-02 19:34:52,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2023-12-02 19:34:52,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2023-12-02 19:34:52,134 INFO L130 BoogieDeclarations]: Found specification of procedure DVAL_LH [2023-12-02 19:34:52,134 INFO L138 BoogieDeclarations]: Found implementation of procedure DVAL_LH [2023-12-02 19:34:52,134 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2023-12-02 19:34:52,134 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2023-12-02 19:34:52,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_74 [2023-12-02 19:34:52,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_74 [2023-12-02 19:34:52,135 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_reply_dword_lh [2023-12-02 19:34:52,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_reply_dword_lh [2023-12-02 19:34:52,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2023-12-02 19:34:52,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2023-12-02 19:34:52,135 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-12-02 19:34:52,135 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-12-02 19:34:52,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_siglock_of_sighand_struct [2023-12-02 19:34:52,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_siglock_of_sighand_struct [2023-12-02 19:34:52,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2023-12-02 19:34:52,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2023-12-02 19:34:52,135 INFO L130 BoogieDeclarations]: Found specification of procedure SetPageUptodate [2023-12-02 19:34:52,136 INFO L138 BoogieDeclarations]: Found implementation of procedure SetPageUptodate [2023-12-02 19:34:52,136 INFO L130 BoogieDeclarations]: Found specification of procedure uid_eq [2023-12-02 19:34:52,136 INFO L138 BoogieDeclarations]: Found implementation of procedure uid_eq [2023-12-02 19:34:52,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2023-12-02 19:34:52,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2023-12-02 19:34:52,136 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_req_put [2023-12-02 19:34:52,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_req_put [2023-12-02 19:34:52,136 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-12-02 19:34:52,136 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-12-02 19:34:52,136 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2023-12-02 19:34:52,136 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2023-12-02 19:34:52,136 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_conn_valid [2023-12-02 19:34:52,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_conn_valid [2023-12-02 19:34:52,137 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-12-02 19:34:52,137 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-12-02 19:34:52,137 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-12-02 19:34:52,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-12-02 19:34:52,137 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_be32 [2023-12-02 19:34:52,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_be32 [2023-12-02 19:34:52,137 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_open_mutex_of_ncp_inode_info [2023-12-02 19:34:52,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_open_mutex_of_ncp_inode_info [2023-12-02 19:34:52,137 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_finish_request [2023-12-02 19:34:52,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_finish_request [2023-12-02 19:34:52,137 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2023-12-02 19:34:52,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2023-12-02 19:34:52,137 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_update_inode2 [2023-12-02 19:34:52,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_update_inode2 [2023-12-02 19:34:52,138 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-12-02 19:34:52,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-12-02 19:34:52,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 19:34:52,138 INFO L130 BoogieDeclarations]: Found specification of procedure gid_eq [2023-12-02 19:34:52,138 INFO L138 BoogieDeclarations]: Found implementation of procedure gid_eq [2023-12-02 19:34:52,138 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2023-12-02 19:34:52,138 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_unlock_server [2023-12-02 19:34:52,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_unlock_server [2023-12-02 19:34:52,138 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le64 [2023-12-02 19:34:52,138 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le64 [2023-12-02 19:34:53,532 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 19:34:53,538 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 19:34:53,726 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-12-02 19:35:06,983 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 19:35:11,130 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 19:35:11,130 INFO L309 CfgBuilder]: Removed 17 assume(true) statements. [2023-12-02 19:35:11,134 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:35:11 BoogieIcfgContainer [2023-12-02 19:35:11,134 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 19:35:11,136 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 19:35:11,137 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 19:35:11,140 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 19:35:11,140 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:34:41" (1/3) ... [2023-12-02 19:35:11,141 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6555122e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:35:11, skipping insertion in model container [2023-12-02 19:35:11,141 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:34:50" (2/3) ... [2023-12-02 19:35:11,141 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6555122e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:35:11, skipping insertion in model container [2023-12-02 19:35:11,141 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:35:11" (3/3) ... [2023-12-02 19:35:11,143 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i [2023-12-02 19:35:11,162 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 19:35:11,162 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2023-12-02 19:35:11,272 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 19:35:11,278 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=LoopHeads, 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;@77de82c7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 19:35:11,279 INFO L358 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2023-12-02 19:35:11,296 INFO L276 IsEmpty]: Start isEmpty. Operand has 3643 states, 2085 states have (on average 1.3069544364508394) internal successors, (2725), 2177 states have internal predecessors, (2725), 1280 states have call successors, (1280), 248 states have call predecessors, (1280), 247 states have return successors, (1271), 1249 states have call predecessors, (1271), 1271 states have call successors, (1271) [2023-12-02 19:35:11,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-02 19:35:11,306 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:35:11,307 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:35:11,307 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_for_read_sectionErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:35:11,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:35:11,313 INFO L85 PathProgramCache]: Analyzing trace with hash -212039994, now seen corresponding path program 1 times [2023-12-02 19:35:11,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:35:11,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384431217] [2023-12-02 19:35:11,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:35:11,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:35:11,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:35:12,146 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-02 19:35:12,147 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:35:12,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384431217] [2023-12-02 19:35:12,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384431217] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:35:12,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:35:12,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:35:12,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780368323] [2023-12-02 19:35:12,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:35:12,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:35:12,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:35:12,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:35:12,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:35:12,194 INFO L87 Difference]: Start difference. First operand has 3643 states, 2085 states have (on average 1.3069544364508394) internal successors, (2725), 2177 states have internal predecessors, (2725), 1280 states have call successors, (1280), 248 states have call predecessors, (1280), 247 states have return successors, (1271), 1249 states have call predecessors, (1271), 1271 states have call successors, (1271) Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-02 19:35:17,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:35:19,717 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 [] [2023-12-02 19:35:19,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:35:19,752 INFO L93 Difference]: Finished difference Result 7233 states and 10843 transitions. [2023-12-02 19:35:19,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:35:19,754 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 35 [2023-12-02 19:35:19,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:35:19,801 INFO L225 Difference]: With dead ends: 7233 [2023-12-02 19:35:19,801 INFO L226 Difference]: Without dead ends: 3594 [2023-12-02 19:35:19,834 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 [2023-12-02 19:35:19,838 INFO L413 NwaCegarLoop]: 4655 mSDtfsCounter, 5161 mSDsluCounter, 4655 mSDsCounter, 0 mSdLazyCounter, 1038 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5161 SdHoareTripleChecker+Valid, 9310 SdHoareTripleChecker+Invalid, 1040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1038 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:35:19,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5161 Valid, 9310 Invalid, 1040 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1038 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2023-12-02 19:35:19,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3594 states. [2023-12-02 19:35:20,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3594 to 3594. [2023-12-02 19:35:20,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3594 states, 2060 states have (on average 1.2820388349514562) internal successors, (2641), 2135 states have internal predecessors, (2641), 1256 states have call successors, (1256), 246 states have call predecessors, (1256), 245 states have return successors, (1254), 1240 states have call predecessors, (1254), 1254 states have call successors, (1254) [2023-12-02 19:35:20,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3594 states to 3594 states and 5151 transitions. [2023-12-02 19:35:20,198 INFO L78 Accepts]: Start accepts. Automaton has 3594 states and 5151 transitions. Word has length 35 [2023-12-02 19:35:20,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:35:20,200 INFO L495 AbstractCegarLoop]: Abstraction has 3594 states and 5151 transitions. [2023-12-02 19:35:20,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-02 19:35:20,200 INFO L276 IsEmpty]: Start isEmpty. Operand 3594 states and 5151 transitions. [2023-12-02 19:35:20,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-02 19:35:20,203 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:35:20,203 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:35:20,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 19:35:20,203 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_for_read_sectionErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:35:20,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:35:20,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1896074232, now seen corresponding path program 1 times [2023-12-02 19:35:20,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:35:20,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935274221] [2023-12-02 19:35:20,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:35:20,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:35:20,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:35:20,666 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-02 19:35:20,666 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:35:20,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935274221] [2023-12-02 19:35:20,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935274221] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:35:20,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:35:20,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:35:20,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23406310] [2023-12-02 19:35:20,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:35:20,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:35:20,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:35:20,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:35:20,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:35:20,669 INFO L87 Difference]: Start difference. First operand 3594 states and 5151 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-02 19:35:26,700 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 [] [2023-12-02 19:35:28,707 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 [] [2023-12-02 19:35:28,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:35:28,737 INFO L93 Difference]: Finished difference Result 3594 states and 5151 transitions. [2023-12-02 19:35:28,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:35:28,738 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 37 [2023-12-02 19:35:28,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:35:28,764 INFO L225 Difference]: With dead ends: 3594 [2023-12-02 19:35:28,764 INFO L226 Difference]: Without dead ends: 3592 [2023-12-02 19:35:28,766 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 [2023-12-02 19:35:28,768 INFO L413 NwaCegarLoop]: 4630 mSDtfsCounter, 5132 mSDsluCounter, 4630 mSDsCounter, 0 mSdLazyCounter, 1034 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5132 SdHoareTripleChecker+Valid, 9260 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1034 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2023-12-02 19:35:28,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5132 Valid, 9260 Invalid, 1036 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1034 Invalid, 2 Unknown, 0 Unchecked, 7.7s Time] [2023-12-02 19:35:28,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3592 states. [2023-12-02 19:35:28,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3592 to 3592. [2023-12-02 19:35:28,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3592 states, 2059 states have (on average 1.2816901408450705) internal successors, (2639), 2133 states have internal predecessors, (2639), 1256 states have call successors, (1256), 246 states have call predecessors, (1256), 245 states have return successors, (1254), 1240 states have call predecessors, (1254), 1254 states have call successors, (1254) [2023-12-02 19:35:28,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3592 states to 3592 states and 5149 transitions. [2023-12-02 19:35:28,956 INFO L78 Accepts]: Start accepts. Automaton has 3592 states and 5149 transitions. Word has length 37 [2023-12-02 19:35:28,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:35:28,956 INFO L495 AbstractCegarLoop]: Abstraction has 3592 states and 5149 transitions. [2023-12-02 19:35:28,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-02 19:35:28,956 INFO L276 IsEmpty]: Start isEmpty. Operand 3592 states and 5149 transitions. [2023-12-02 19:35:28,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-02 19:35:28,958 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:35:28,958 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:35:28,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 19:35:28,959 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_for_read_sectionErr2ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:35:28,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:35:28,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1050320389, now seen corresponding path program 1 times [2023-12-02 19:35:28,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:35:28,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38681195] [2023-12-02 19:35:28,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:35:28,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:35:29,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:35:29,403 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-02 19:35:29,404 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:35:29,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38681195] [2023-12-02 19:35:29,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38681195] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:35:29,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:35:29,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:35:29,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970263667] [2023-12-02 19:35:29,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:35:29,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:35:29,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:35:29,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:35:29,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:35:29,407 INFO L87 Difference]: Start difference. First operand 3592 states and 5149 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-02 19:35:34,873 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 [] [2023-12-02 19:35:36,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:35:36,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:35:36,912 INFO L93 Difference]: Finished difference Result 3592 states and 5149 transitions. [2023-12-02 19:35:36,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:35:36,912 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 39 [2023-12-02 19:35:36,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:35:36,939 INFO L225 Difference]: With dead ends: 3592 [2023-12-02 19:35:36,939 INFO L226 Difference]: Without dead ends: 3590 [2023-12-02 19:35:36,944 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 [2023-12-02 19:35:36,945 INFO L413 NwaCegarLoop]: 4628 mSDtfsCounter, 5128 mSDsluCounter, 4628 mSDsCounter, 0 mSdLazyCounter, 1034 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5128 SdHoareTripleChecker+Valid, 9256 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1034 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2023-12-02 19:35:36,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5128 Valid, 9256 Invalid, 1036 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1034 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2023-12-02 19:35:36,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3590 states. [2023-12-02 19:35:37,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3590 to 3590. [2023-12-02 19:35:37,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3590 states, 2058 states have (on average 1.28134110787172) internal successors, (2637), 2131 states have internal predecessors, (2637), 1256 states have call successors, (1256), 246 states have call predecessors, (1256), 245 states have return successors, (1254), 1240 states have call predecessors, (1254), 1254 states have call successors, (1254) [2023-12-02 19:35:37,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3590 states to 3590 states and 5147 transitions. [2023-12-02 19:35:37,123 INFO L78 Accepts]: Start accepts. Automaton has 3590 states and 5147 transitions. Word has length 39 [2023-12-02 19:35:37,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:35:37,124 INFO L495 AbstractCegarLoop]: Abstraction has 3590 states and 5147 transitions. [2023-12-02 19:35:37,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-02 19:35:37,124 INFO L276 IsEmpty]: Start isEmpty. Operand 3590 states and 5147 transitions. [2023-12-02 19:35:37,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 19:35:37,126 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:35:37,126 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:35:37,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 19:35:37,126 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_for_read_sectionErr3ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:35:37,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:35:37,127 INFO L85 PathProgramCache]: Analyzing trace with hash -29706397, now seen corresponding path program 1 times [2023-12-02 19:35:37,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:35:37,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348054072] [2023-12-02 19:35:37,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:35:37,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:35:37,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:35:37,441 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-02 19:35:37,441 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:35:37,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348054072] [2023-12-02 19:35:37,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348054072] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:35:37,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:35:37,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:35:37,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556349806] [2023-12-02 19:35:37,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:35:37,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:35:37,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:35:37,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:35:37,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:35:37,443 INFO L87 Difference]: Start difference. First operand 3590 states and 5147 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-02 19:35:42,443 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:35:44,450 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 [] [2023-12-02 19:35:44,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:35:44,479 INFO L93 Difference]: Finished difference Result 3590 states and 5147 transitions. [2023-12-02 19:35:44,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:35:44,480 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 41 [2023-12-02 19:35:44,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:35:44,501 INFO L225 Difference]: With dead ends: 3590 [2023-12-02 19:35:44,501 INFO L226 Difference]: Without dead ends: 3588 [2023-12-02 19:35:44,504 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 [2023-12-02 19:35:44,505 INFO L413 NwaCegarLoop]: 4626 mSDtfsCounter, 5124 mSDsluCounter, 4626 mSDsCounter, 0 mSdLazyCounter, 1034 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5124 SdHoareTripleChecker+Valid, 9252 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1034 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2023-12-02 19:35:44,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5124 Valid, 9252 Invalid, 1036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1034 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2023-12-02 19:35:44,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3588 states. [2023-12-02 19:35:44,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3588 to 3588. [2023-12-02 19:35:44,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3588 states, 2057 states have (on average 1.28099173553719) internal successors, (2635), 2129 states have internal predecessors, (2635), 1256 states have call successors, (1256), 246 states have call predecessors, (1256), 245 states have return successors, (1254), 1240 states have call predecessors, (1254), 1254 states have call successors, (1254) [2023-12-02 19:35:44,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3588 states to 3588 states and 5145 transitions. [2023-12-02 19:35:44,732 INFO L78 Accepts]: Start accepts. Automaton has 3588 states and 5145 transitions. Word has length 41 [2023-12-02 19:35:44,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:35:44,733 INFO L495 AbstractCegarLoop]: Abstraction has 3588 states and 5145 transitions. [2023-12-02 19:35:44,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-02 19:35:44,734 INFO L276 IsEmpty]: Start isEmpty. Operand 3588 states and 5145 transitions. [2023-12-02 19:35:44,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-02 19:35:44,736 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:35:44,736 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:35:44,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 19:35:44,737 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:35:44,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:35:44,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1892961072, now seen corresponding path program 1 times [2023-12-02 19:35:44,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:35:44,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401550255] [2023-12-02 19:35:44,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:35:44,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:35:44,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:35:45,004 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 19:35:45,004 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:35:45,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401550255] [2023-12-02 19:35:45,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401550255] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:35:45,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:35:45,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:35:45,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084174859] [2023-12-02 19:35:45,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:35:45,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:35:45,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:35:45,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:35:45,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:35:45,006 INFO L87 Difference]: Start difference. First operand 3588 states and 5145 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-02 19:35:49,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:35:51,711 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 [] [2023-12-02 19:35:51,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:35:51,738 INFO L93 Difference]: Finished difference Result 3588 states and 5145 transitions. [2023-12-02 19:35:51,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:35:51,739 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 49 [2023-12-02 19:35:51,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:35:51,757 INFO L225 Difference]: With dead ends: 3588 [2023-12-02 19:35:51,757 INFO L226 Difference]: Without dead ends: 3586 [2023-12-02 19:35:51,760 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 [2023-12-02 19:35:51,760 INFO L413 NwaCegarLoop]: 4624 mSDtfsCounter, 5125 mSDsluCounter, 4624 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5125 SdHoareTripleChecker+Valid, 9248 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-12-02 19:35:51,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5125 Valid, 9248 Invalid, 1036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1035 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2023-12-02 19:35:51,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3586 states. [2023-12-02 19:35:51,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3586 to 3586. [2023-12-02 19:35:51,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3586 states, 2056 states have (on average 1.2806420233463034) internal successors, (2633), 2127 states have internal predecessors, (2633), 1256 states have call successors, (1256), 246 states have call predecessors, (1256), 245 states have return successors, (1254), 1240 states have call predecessors, (1254), 1254 states have call successors, (1254) [2023-12-02 19:35:51,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3586 states to 3586 states and 5143 transitions. [2023-12-02 19:35:51,945 INFO L78 Accepts]: Start accepts. Automaton has 3586 states and 5143 transitions. Word has length 49 [2023-12-02 19:35:51,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:35:51,946 INFO L495 AbstractCegarLoop]: Abstraction has 3586 states and 5143 transitions. [2023-12-02 19:35:51,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-02 19:35:51,946 INFO L276 IsEmpty]: Start isEmpty. Operand 3586 states and 5143 transitions. [2023-12-02 19:35:51,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-02 19:35:51,948 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:35:51,949 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:35:51,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 19:35:51,949 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:35:51,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:35:51,949 INFO L85 PathProgramCache]: Analyzing trace with hash 85932144, now seen corresponding path program 1 times [2023-12-02 19:35:51,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:35:51,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164176357] [2023-12-02 19:35:51,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:35:51,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:35:52,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:35:52,310 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 19:35:52,310 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:35:52,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164176357] [2023-12-02 19:35:52,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164176357] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:35:52,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:35:52,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:35:52,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404091670] [2023-12-02 19:35:52,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:35:52,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:35:52,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:35:52,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:35:52,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:35:52,312 INFO L87 Difference]: Start difference. First operand 3586 states and 5143 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-02 19:35:57,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:35:58,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:35:58,395 INFO L93 Difference]: Finished difference Result 3586 states and 5143 transitions. [2023-12-02 19:35:58,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:35:58,396 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 54 [2023-12-02 19:35:58,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:35:58,414 INFO L225 Difference]: With dead ends: 3586 [2023-12-02 19:35:58,415 INFO L226 Difference]: Without dead ends: 3584 [2023-12-02 19:35:58,417 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 [2023-12-02 19:35:58,418 INFO L413 NwaCegarLoop]: 4622 mSDtfsCounter, 5122 mSDsluCounter, 4622 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5122 SdHoareTripleChecker+Valid, 9244 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-12-02 19:35:58,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5122 Valid, 9244 Invalid, 1036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1035 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2023-12-02 19:35:58,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3584 states. [2023-12-02 19:35:58,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3584 to 3584. [2023-12-02 19:35:58,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3584 states, 2055 states have (on average 1.2802919708029197) internal successors, (2631), 2125 states have internal predecessors, (2631), 1256 states have call successors, (1256), 246 states have call predecessors, (1256), 245 states have return successors, (1254), 1240 states have call predecessors, (1254), 1254 states have call successors, (1254) [2023-12-02 19:35:58,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3584 states to 3584 states and 5141 transitions. [2023-12-02 19:35:58,702 INFO L78 Accepts]: Start accepts. Automaton has 3584 states and 5141 transitions. Word has length 54 [2023-12-02 19:35:58,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:35:58,703 INFO L495 AbstractCegarLoop]: Abstraction has 3584 states and 5141 transitions. [2023-12-02 19:35:58,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-02 19:35:58,703 INFO L276 IsEmpty]: Start isEmpty. Operand 3584 states and 5141 transitions. [2023-12-02 19:35:58,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-02 19:35:58,705 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:35:58,705 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:35:58,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-02 19:35:58,705 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:35:58,706 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:35:58,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1085056897, now seen corresponding path program 1 times [2023-12-02 19:35:58,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:35:58,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434470551] [2023-12-02 19:35:58,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:35:58,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:35:58,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:35:59,038 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 19:35:59,039 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:35:59,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434470551] [2023-12-02 19:35:59,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434470551] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:35:59,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:35:59,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:35:59,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661701870] [2023-12-02 19:35:59,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:35:59,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:35:59,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:35:59,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:35:59,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:35:59,041 INFO L87 Difference]: Start difference. First operand 3584 states and 5141 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 19:36:03,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:36:05,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:36:05,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:36:05,500 INFO L93 Difference]: Finished difference Result 3584 states and 5141 transitions. [2023-12-02 19:36:05,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:36:05,501 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 59 [2023-12-02 19:36:05,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:36:05,518 INFO L225 Difference]: With dead ends: 3584 [2023-12-02 19:36:05,518 INFO L226 Difference]: Without dead ends: 3582 [2023-12-02 19:36:05,519 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 [2023-12-02 19:36:05,520 INFO L413 NwaCegarLoop]: 4620 mSDtfsCounter, 5119 mSDsluCounter, 4620 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5119 SdHoareTripleChecker+Valid, 9240 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2023-12-02 19:36:05,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5119 Valid, 9240 Invalid, 1036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1035 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2023-12-02 19:36:05,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3582 states. [2023-12-02 19:36:05,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3582 to 3582. [2023-12-02 19:36:05,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3582 states, 2054 states have (on average 1.2799415774099319) internal successors, (2629), 2123 states have internal predecessors, (2629), 1256 states have call successors, (1256), 246 states have call predecessors, (1256), 245 states have return successors, (1254), 1240 states have call predecessors, (1254), 1254 states have call successors, (1254) [2023-12-02 19:36:05,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3582 states to 3582 states and 5139 transitions. [2023-12-02 19:36:05,728 INFO L78 Accepts]: Start accepts. Automaton has 3582 states and 5139 transitions. Word has length 59 [2023-12-02 19:36:05,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:36:05,728 INFO L495 AbstractCegarLoop]: Abstraction has 3582 states and 5139 transitions. [2023-12-02 19:36:05,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 19:36:05,728 INFO L276 IsEmpty]: Start isEmpty. Operand 3582 states and 5139 transitions. [2023-12-02 19:36:05,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-02 19:36:05,729 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:36:05,730 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:36:05,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-02 19:36:05,730 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:36:05,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:36:05,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1490430217, now seen corresponding path program 1 times [2023-12-02 19:36:05,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:36:05,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493566313] [2023-12-02 19:36:05,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:36:05,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:36:05,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:36:05,960 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 19:36:05,960 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:36:05,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493566313] [2023-12-02 19:36:05,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493566313] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:36:05,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:36:05,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:36:05,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298228889] [2023-12-02 19:36:05,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:36:05,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:36:05,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:36:05,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:36:05,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:36:05,962 INFO L87 Difference]: Start difference. First operand 3582 states and 5139 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 19:36:11,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:36:13,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:36:13,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:36:13,319 INFO L93 Difference]: Finished difference Result 3582 states and 5139 transitions. [2023-12-02 19:36:13,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:36:13,320 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 64 [2023-12-02 19:36:13,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:36:13,339 INFO L225 Difference]: With dead ends: 3582 [2023-12-02 19:36:13,339 INFO L226 Difference]: Without dead ends: 3580 [2023-12-02 19:36:13,342 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 [2023-12-02 19:36:13,343 INFO L413 NwaCegarLoop]: 4618 mSDtfsCounter, 5116 mSDsluCounter, 4618 mSDsCounter, 0 mSdLazyCounter, 1034 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5116 SdHoareTripleChecker+Valid, 9236 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1034 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:36:13,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5116 Valid, 9236 Invalid, 1036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1034 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2023-12-02 19:36:13,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3580 states. [2023-12-02 19:36:13,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3580 to 3580. [2023-12-02 19:36:13,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3580 states, 2053 states have (on average 1.2795908426692646) internal successors, (2627), 2121 states have internal predecessors, (2627), 1256 states have call successors, (1256), 246 states have call predecessors, (1256), 245 states have return successors, (1254), 1240 states have call predecessors, (1254), 1254 states have call successors, (1254) [2023-12-02 19:36:13,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3580 states to 3580 states and 5137 transitions. [2023-12-02 19:36:13,614 INFO L78 Accepts]: Start accepts. Automaton has 3580 states and 5137 transitions. Word has length 64 [2023-12-02 19:36:13,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:36:13,615 INFO L495 AbstractCegarLoop]: Abstraction has 3580 states and 5137 transitions. [2023-12-02 19:36:13,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 19:36:13,615 INFO L276 IsEmpty]: Start isEmpty. Operand 3580 states and 5137 transitions. [2023-12-02 19:36:13,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-02 19:36:13,617 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:36:13,617 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:36:13,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-02 19:36:13,617 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:36:13,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:36:13,617 INFO L85 PathProgramCache]: Analyzing trace with hash 199618297, now seen corresponding path program 1 times [2023-12-02 19:36:13,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:36:13,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745981218] [2023-12-02 19:36:13,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:36:13,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:36:13,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:36:14,487 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 19:36:14,487 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:36:14,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745981218] [2023-12-02 19:36:14,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745981218] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:36:14,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:36:14,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 19:36:14,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43499466] [2023-12-02 19:36:14,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:36:14,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 19:36:14,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:36:14,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 19:36:14,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:36:14,489 INFO L87 Difference]: Start difference. First operand 3580 states and 5137 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 19:36:22,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:36:24,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:36:26,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:36:28,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:36:30,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:36:32,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:36:34,839 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 [] [2023-12-02 19:36:34,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:36:34,907 INFO L93 Difference]: Finished difference Result 6345 states and 9303 transitions. [2023-12-02 19:36:34,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 19:36:34,907 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 67 [2023-12-02 19:36:34,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:36:34,930 INFO L225 Difference]: With dead ends: 6345 [2023-12-02 19:36:34,930 INFO L226 Difference]: Without dead ends: 6343 [2023-12-02 19:36:34,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 19:36:34,933 INFO L413 NwaCegarLoop]: 4881 mSDtfsCounter, 4020 mSDsluCounter, 14409 mSDsCounter, 0 mSdLazyCounter, 2156 mSolverCounterSat, 3 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4024 SdHoareTripleChecker+Valid, 19290 SdHoareTripleChecker+Invalid, 2166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2156 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.7s IncrementalHoareTripleChecker+Time [2023-12-02 19:36:34,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4024 Valid, 19290 Invalid, 2166 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 2156 Invalid, 7 Unknown, 0 Unchecked, 19.7s Time] [2023-12-02 19:36:34,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6343 states. [2023-12-02 19:36:35,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6343 to 6168. [2023-12-02 19:36:35,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6168 states, 3644 states have (on average 1.2930845225027443) internal successors, (4712), 3741 states have internal predecessors, (4712), 2081 states have call successors, (2081), 421 states have call predecessors, (2081), 417 states have return successors, (2324), 2058 states have call predecessors, (2324), 2079 states have call successors, (2324) [2023-12-02 19:36:35,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6168 states to 6168 states and 9117 transitions. [2023-12-02 19:36:35,595 INFO L78 Accepts]: Start accepts. Automaton has 6168 states and 9117 transitions. Word has length 67 [2023-12-02 19:36:35,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:36:35,595 INFO L495 AbstractCegarLoop]: Abstraction has 6168 states and 9117 transitions. [2023-12-02 19:36:35,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 19:36:35,595 INFO L276 IsEmpty]: Start isEmpty. Operand 6168 states and 9117 transitions. [2023-12-02 19:36:35,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-02 19:36:35,597 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:36:35,597 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:36:35,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-02 19:36:35,598 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:36:35,598 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:36:35,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1342691493, now seen corresponding path program 1 times [2023-12-02 19:36:35,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:36:35,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456110075] [2023-12-02 19:36:35,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:36:35,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:36:35,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:36:36,566 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 19:36:36,566 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:36:36,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456110075] [2023-12-02 19:36:36,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456110075] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:36:36,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:36:36,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 19:36:36,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740864592] [2023-12-02 19:36:36,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:36:36,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 19:36:36,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:36:36,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 19:36:36,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:36:36,568 INFO L87 Difference]: Start difference. First operand 6168 states and 9117 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 19:36:44,647 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 [] [2023-12-02 19:36:46,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:36:48,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:36:50,665 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 [] [2023-12-02 19:36:50,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:36:50,714 INFO L93 Difference]: Finished difference Result 12338 states and 18267 transitions. [2023-12-02 19:36:50,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 19:36:50,715 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 67 [2023-12-02 19:36:50,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:36:50,738 INFO L225 Difference]: With dead ends: 12338 [2023-12-02 19:36:50,738 INFO L226 Difference]: Without dead ends: 6176 [2023-12-02 19:36:50,764 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 [2023-12-02 19:36:50,764 INFO L413 NwaCegarLoop]: 4618 mSDtfsCounter, 2 mSDsluCounter, 13850 mSDsCounter, 0 mSdLazyCounter, 2075 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 18468 SdHoareTripleChecker+Invalid, 2079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2075 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2023-12-02 19:36:50,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 18468 Invalid, 2079 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2075 Invalid, 4 Unknown, 0 Unchecked, 13.6s Time] [2023-12-02 19:36:50,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6176 states. [2023-12-02 19:36:51,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6176 to 6172. [2023-12-02 19:36:51,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6172 states, 3647 states have (on average 1.292843432958596) internal successors, (4715), 3744 states have internal predecessors, (4715), 2081 states have call successors, (2081), 421 states have call predecessors, (2081), 418 states have return successors, (2342), 2059 states have call predecessors, (2342), 2079 states have call successors, (2342) [2023-12-02 19:36:51,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6172 states to 6172 states and 9138 transitions. [2023-12-02 19:36:51,234 INFO L78 Accepts]: Start accepts. Automaton has 6172 states and 9138 transitions. Word has length 67 [2023-12-02 19:36:51,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:36:51,234 INFO L495 AbstractCegarLoop]: Abstraction has 6172 states and 9138 transitions. [2023-12-02 19:36:51,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 19:36:51,235 INFO L276 IsEmpty]: Start isEmpty. Operand 6172 states and 9138 transitions. [2023-12-02 19:36:51,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-02 19:36:51,236 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:36:51,236 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:36:51,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-02 19:36:51,236 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:36:51,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:36:51,237 INFO L85 PathProgramCache]: Analyzing trace with hash 259522902, now seen corresponding path program 1 times [2023-12-02 19:36:51,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:36:51,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784273203] [2023-12-02 19:36:51,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:36:51,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:36:51,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:36:51,460 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 19:36:51,460 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:36:51,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784273203] [2023-12-02 19:36:51,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784273203] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:36:51,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:36:51,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:36:51,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887629283] [2023-12-02 19:36:51,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:36:51,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:36:51,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:36:51,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:36:51,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:36:51,462 INFO L87 Difference]: Start difference. First operand 6172 states and 9138 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-02 19:36:57,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:36:59,448 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 [] [2023-12-02 19:36:59,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:36:59,486 INFO L93 Difference]: Finished difference Result 6172 states and 9138 transitions. [2023-12-02 19:36:59,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:36:59,486 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 69 [2023-12-02 19:36:59,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:36:59,504 INFO L225 Difference]: With dead ends: 6172 [2023-12-02 19:36:59,504 INFO L226 Difference]: Without dead ends: 6170 [2023-12-02 19:36:59,507 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 [2023-12-02 19:36:59,508 INFO L413 NwaCegarLoop]: 4616 mSDtfsCounter, 5113 mSDsluCounter, 4616 mSDsCounter, 0 mSdLazyCounter, 1034 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5113 SdHoareTripleChecker+Valid, 9232 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1034 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2023-12-02 19:36:59,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5113 Valid, 9232 Invalid, 1036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1034 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2023-12-02 19:36:59,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6170 states. [2023-12-02 19:36:59,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6170 to 6170. [2023-12-02 19:36:59,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6170 states, 3646 states have (on average 1.2926494788809655) internal successors, (4713), 3742 states have internal predecessors, (4713), 2081 states have call successors, (2081), 421 states have call predecessors, (2081), 418 states have return successors, (2342), 2059 states have call predecessors, (2342), 2079 states have call successors, (2342) [2023-12-02 19:36:59,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6170 states to 6170 states and 9136 transitions. [2023-12-02 19:36:59,921 INFO L78 Accepts]: Start accepts. Automaton has 6170 states and 9136 transitions. Word has length 69 [2023-12-02 19:36:59,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:36:59,921 INFO L495 AbstractCegarLoop]: Abstraction has 6170 states and 9136 transitions. [2023-12-02 19:36:59,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-02 19:36:59,921 INFO L276 IsEmpty]: Start isEmpty. Operand 6170 states and 9136 transitions. [2023-12-02 19:36:59,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-02 19:36:59,922 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:36:59,922 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:36:59,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-02 19:36:59,923 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:36:59,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:36:59,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1074918266, now seen corresponding path program 1 times [2023-12-02 19:36:59,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:36:59,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315334972] [2023-12-02 19:36:59,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:36:59,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:36:59,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:37:00,149 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 19:37:00,149 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:37:00,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315334972] [2023-12-02 19:37:00,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315334972] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:37:00,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:37:00,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:37:00,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026272395] [2023-12-02 19:37:00,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:37:00,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:37:00,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:37:00,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:37:00,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:37:00,151 INFO L87 Difference]: Start difference. First operand 6170 states and 9136 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 19:37:05,096 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 [] [2023-12-02 19:37:07,110 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 [] [2023-12-02 19:37:07,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:37:07,152 INFO L93 Difference]: Finished difference Result 6170 states and 9136 transitions. [2023-12-02 19:37:07,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:37:07,153 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 74 [2023-12-02 19:37:07,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:37:07,180 INFO L225 Difference]: With dead ends: 6170 [2023-12-02 19:37:07,180 INFO L226 Difference]: Without dead ends: 6168 [2023-12-02 19:37:07,184 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 [2023-12-02 19:37:07,185 INFO L413 NwaCegarLoop]: 4614 mSDtfsCounter, 5110 mSDsluCounter, 4614 mSDsCounter, 0 mSdLazyCounter, 1034 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5110 SdHoareTripleChecker+Valid, 9228 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1034 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-12-02 19:37:07,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5110 Valid, 9228 Invalid, 1036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1034 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2023-12-02 19:37:07,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6168 states. [2023-12-02 19:37:07,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6168 to 6168. [2023-12-02 19:37:07,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6168 states, 3645 states have (on average 1.2924554183813444) internal successors, (4711), 3740 states have internal predecessors, (4711), 2081 states have call successors, (2081), 421 states have call predecessors, (2081), 418 states have return successors, (2342), 2059 states have call predecessors, (2342), 2079 states have call successors, (2342) [2023-12-02 19:37:07,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6168 states to 6168 states and 9134 transitions. [2023-12-02 19:37:07,801 INFO L78 Accepts]: Start accepts. Automaton has 6168 states and 9134 transitions. Word has length 74 [2023-12-02 19:37:07,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:37:07,801 INFO L495 AbstractCegarLoop]: Abstraction has 6168 states and 9134 transitions. [2023-12-02 19:37:07,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 19:37:07,801 INFO L276 IsEmpty]: Start isEmpty. Operand 6168 states and 9134 transitions. [2023-12-02 19:37:07,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-02 19:37:07,803 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:37:07,803 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:37:07,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-02 19:37:07,803 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:37:07,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:37:07,803 INFO L85 PathProgramCache]: Analyzing trace with hash -17763379, now seen corresponding path program 1 times [2023-12-02 19:37:07,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:37:07,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976219253] [2023-12-02 19:37:07,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:37:07,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:37:07,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:37:08,034 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 19:37:08,034 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:37:08,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976219253] [2023-12-02 19:37:08,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976219253] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:37:08,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:37:08,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:37:08,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941647915] [2023-12-02 19:37:08,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:37:08,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:37:08,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:37:08,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:37:08,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:37:08,036 INFO L87 Difference]: Start difference. First operand 6168 states and 9134 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-02 19:37:13,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:37:15,237 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 [] [2023-12-02 19:37:15,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:37:15,303 INFO L93 Difference]: Finished difference Result 6168 states and 9134 transitions. [2023-12-02 19:37:15,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:37:15,303 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 79 [2023-12-02 19:37:15,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:37:15,319 INFO L225 Difference]: With dead ends: 6168 [2023-12-02 19:37:15,319 INFO L226 Difference]: Without dead ends: 6166 [2023-12-02 19:37:15,321 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 [2023-12-02 19:37:15,321 INFO L413 NwaCegarLoop]: 4612 mSDtfsCounter, 5107 mSDsluCounter, 4612 mSDsCounter, 0 mSdLazyCounter, 1034 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5107 SdHoareTripleChecker+Valid, 9224 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1034 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2023-12-02 19:37:15,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5107 Valid, 9224 Invalid, 1036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1034 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2023-12-02 19:37:15,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6166 states. [2023-12-02 19:37:15,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6166 to 6166. [2023-12-02 19:37:15,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6166 states, 3644 states have (on average 1.2922612513721186) internal successors, (4709), 3738 states have internal predecessors, (4709), 2081 states have call successors, (2081), 421 states have call predecessors, (2081), 418 states have return successors, (2342), 2059 states have call predecessors, (2342), 2079 states have call successors, (2342) [2023-12-02 19:37:15,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6166 states to 6166 states and 9132 transitions. [2023-12-02 19:37:15,774 INFO L78 Accepts]: Start accepts. Automaton has 6166 states and 9132 transitions. Word has length 79 [2023-12-02 19:37:15,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:37:15,774 INFO L495 AbstractCegarLoop]: Abstraction has 6166 states and 9132 transitions. [2023-12-02 19:37:15,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-02 19:37:15,774 INFO L276 IsEmpty]: Start isEmpty. Operand 6166 states and 9132 transitions. [2023-12-02 19:37:15,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-02 19:37:15,775 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:37:15,775 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:37:15,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-02 19:37:15,776 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:37:15,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:37:15,776 INFO L85 PathProgramCache]: Analyzing trace with hash -1493709906, now seen corresponding path program 1 times [2023-12-02 19:37:15,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:37:15,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949797967] [2023-12-02 19:37:15,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:37:15,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:37:15,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:37:16,426 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2023-12-02 19:37:16,426 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:37:16,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949797967] [2023-12-02 19:37:16,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949797967] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:37:16,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:37:16,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 19:37:16,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742465066] [2023-12-02 19:37:16,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:37:16,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 19:37:16,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:37:16,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 19:37:16,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 19:37:16,428 INFO L87 Difference]: Start difference. First operand 6166 states and 9132 transitions. Second operand has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 19:37:27,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:37:29,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:37:31,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:37:33,136 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 [] [2023-12-02 19:37:33,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:37:33,292 INFO L93 Difference]: Finished difference Result 6166 states and 9132 transitions. [2023-12-02 19:37:33,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 19:37:33,292 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 80 [2023-12-02 19:37:33,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:37:33,311 INFO L225 Difference]: With dead ends: 6166 [2023-12-02 19:37:33,311 INFO L226 Difference]: Without dead ends: 6164 [2023-12-02 19:37:33,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-02 19:37:33,314 INFO L413 NwaCegarLoop]: 4611 mSDtfsCounter, 5100 mSDsluCounter, 11321 mSDsCounter, 0 mSdLazyCounter, 4576 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5102 SdHoareTripleChecker+Valid, 15932 SdHoareTripleChecker+Invalid, 4580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4576 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2023-12-02 19:37:33,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5102 Valid, 15932 Invalid, 4580 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 4576 Invalid, 4 Unknown, 0 Unchecked, 16.2s Time] [2023-12-02 19:37:33,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6164 states. [2023-12-02 19:37:33,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6164 to 6164. [2023-12-02 19:37:33,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6164 states, 3643 states have (on average 1.2917924787263244) internal successors, (4706), 3736 states have internal predecessors, (4706), 2081 states have call successors, (2081), 421 states have call predecessors, (2081), 418 states have return successors, (2342), 2059 states have call predecessors, (2342), 2079 states have call successors, (2342) [2023-12-02 19:37:33,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6164 states to 6164 states and 9129 transitions. [2023-12-02 19:37:33,793 INFO L78 Accepts]: Start accepts. Automaton has 6164 states and 9129 transitions. Word has length 80 [2023-12-02 19:37:33,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:37:33,793 INFO L495 AbstractCegarLoop]: Abstraction has 6164 states and 9129 transitions. [2023-12-02 19:37:33,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 19:37:33,793 INFO L276 IsEmpty]: Start isEmpty. Operand 6164 states and 9129 transitions. [2023-12-02 19:37:33,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-02 19:37:33,794 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:37:33,795 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:37:33,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-02 19:37:33,795 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:37:33,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:37:33,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1097496010, now seen corresponding path program 1 times [2023-12-02 19:37:33,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:37:33,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879140960] [2023-12-02 19:37:33,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:37:33,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:37:33,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:37:34,352 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2023-12-02 19:37:34,352 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:37:34,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879140960] [2023-12-02 19:37:34,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879140960] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:37:34,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:37:34,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 19:37:34,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837418016] [2023-12-02 19:37:34,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:37:34,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 19:37:34,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:37:34,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 19:37:34,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:37:34,354 INFO L87 Difference]: Start difference. First operand 6164 states and 9129 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 19:37:42,615 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 [] [2023-12-02 19:37:44,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:37:46,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:37:46,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:37:46,708 INFO L93 Difference]: Finished difference Result 6829 states and 9956 transitions. [2023-12-02 19:37:46,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 19:37:46,709 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 83 [2023-12-02 19:37:46,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:37:46,723 INFO L225 Difference]: With dead ends: 6829 [2023-12-02 19:37:46,724 INFO L226 Difference]: Without dead ends: 6827 [2023-12-02 19:37:46,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 19:37:46,726 INFO L413 NwaCegarLoop]: 4700 mSDtfsCounter, 5007 mSDsluCounter, 10108 mSDsCounter, 0 mSdLazyCounter, 1705 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5012 SdHoareTripleChecker+Valid, 14808 SdHoareTripleChecker+Invalid, 1711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1705 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2023-12-02 19:37:46,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5012 Valid, 14808 Invalid, 1711 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1705 Invalid, 3 Unknown, 0 Unchecked, 11.6s Time] [2023-12-02 19:37:46,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6827 states. [2023-12-02 19:37:47,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6827 to 6817. [2023-12-02 19:37:47,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6817 states, 3995 states have (on average 1.2788485607008762) internal successors, (5109), 4094 states have internal predecessors, (5109), 2286 states have call successors, (2286), 519 states have call predecessors, (2286), 514 states have return successors, (2553), 2260 states have call predecessors, (2553), 2284 states have call successors, (2553) [2023-12-02 19:37:47,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6817 states to 6817 states and 9948 transitions. [2023-12-02 19:37:47,288 INFO L78 Accepts]: Start accepts. Automaton has 6817 states and 9948 transitions. Word has length 83 [2023-12-02 19:37:47,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:37:47,288 INFO L495 AbstractCegarLoop]: Abstraction has 6817 states and 9948 transitions. [2023-12-02 19:37:47,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 19:37:47,288 INFO L276 IsEmpty]: Start isEmpty. Operand 6817 states and 9948 transitions. [2023-12-02 19:37:47,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-02 19:37:47,289 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:37:47,290 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:37:47,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-02 19:37:47,290 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:37:47,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:37:47,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1467295242, now seen corresponding path program 1 times [2023-12-02 19:37:47,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:37:47,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119721429] [2023-12-02 19:37:47,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:37:47,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:37:47,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:37:47,542 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 19:37:47,542 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:37:47,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119721429] [2023-12-02 19:37:47,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119721429] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:37:47,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:37:47,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:37:47,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091363812] [2023-12-02 19:37:47,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:37:47,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:37:47,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:37:47,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:37:47,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:37:47,545 INFO L87 Difference]: Start difference. First operand 6817 states and 9948 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-02 19:37:53,401 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 [] [2023-12-02 19:37:53,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:37:53,454 INFO L93 Difference]: Finished difference Result 6817 states and 9948 transitions. [2023-12-02 19:37:53,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:37:53,455 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 84 [2023-12-02 19:37:53,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:37:53,472 INFO L225 Difference]: With dead ends: 6817 [2023-12-02 19:37:53,472 INFO L226 Difference]: Without dead ends: 6815 [2023-12-02 19:37:53,475 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 [2023-12-02 19:37:53,476 INFO L413 NwaCegarLoop]: 4608 mSDtfsCounter, 5102 mSDsluCounter, 4607 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5102 SdHoareTripleChecker+Valid, 9215 SdHoareTripleChecker+Invalid, 1037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1036 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-12-02 19:37:53,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5102 Valid, 9215 Invalid, 1037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1036 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2023-12-02 19:37:53,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6815 states. [2023-12-02 19:37:54,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6815 to 6815. [2023-12-02 19:37:54,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6815 states, 3994 states have (on average 1.2786680020030046) internal successors, (5107), 4092 states have internal predecessors, (5107), 2286 states have call successors, (2286), 519 states have call predecessors, (2286), 514 states have return successors, (2553), 2260 states have call predecessors, (2553), 2284 states have call successors, (2553) [2023-12-02 19:37:54,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6815 states to 6815 states and 9946 transitions. [2023-12-02 19:37:54,085 INFO L78 Accepts]: Start accepts. Automaton has 6815 states and 9946 transitions. Word has length 84 [2023-12-02 19:37:54,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:37:54,085 INFO L495 AbstractCegarLoop]: Abstraction has 6815 states and 9946 transitions. [2023-12-02 19:37:54,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-02 19:37:54,085 INFO L276 IsEmpty]: Start isEmpty. Operand 6815 states and 9946 transitions. [2023-12-02 19:37:54,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-02 19:37:54,086 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:37:54,087 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:37:54,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-02 19:37:54,087 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:37:54,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:37:54,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1272921538, now seen corresponding path program 1 times [2023-12-02 19:37:54,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:37:54,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611597141] [2023-12-02 19:37:54,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:37:54,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:37:54,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:37:54,378 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2023-12-02 19:37:54,378 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:37:54,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611597141] [2023-12-02 19:37:54,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611597141] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:37:54,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:37:54,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:37:54,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837174391] [2023-12-02 19:37:54,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:37:54,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:37:54,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:37:54,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:37:54,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:37:54,380 INFO L87 Difference]: Start difference. First operand 6815 states and 9946 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 19:37:59,194 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 [] [2023-12-02 19:37:59,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:37:59,255 INFO L93 Difference]: Finished difference Result 13603 states and 20328 transitions. [2023-12-02 19:37:59,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:37:59,256 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 83 [2023-12-02 19:37:59,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:37:59,281 INFO L225 Difference]: With dead ends: 13603 [2023-12-02 19:37:59,281 INFO L226 Difference]: Without dead ends: 6807 [2023-12-02 19:37:59,349 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 [2023-12-02 19:37:59,350 INFO L413 NwaCegarLoop]: 4603 mSDtfsCounter, 5090 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5090 SdHoareTripleChecker+Valid, 4603 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:37:59,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5090 Valid, 4603 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 518 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2023-12-02 19:37:59,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6807 states. [2023-12-02 19:37:59,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6807 to 6807. [2023-12-02 19:37:59,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6807 states, 3987 states have (on average 1.2776523702031604) internal successors, (5094), 4084 states have internal predecessors, (5094), 2286 states have call successors, (2286), 519 states have call predecessors, (2286), 514 states have return successors, (2553), 2260 states have call predecessors, (2553), 2284 states have call successors, (2553) [2023-12-02 19:37:59,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6807 states to 6807 states and 9933 transitions. [2023-12-02 19:37:59,955 INFO L78 Accepts]: Start accepts. Automaton has 6807 states and 9933 transitions. Word has length 83 [2023-12-02 19:37:59,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:37:59,956 INFO L495 AbstractCegarLoop]: Abstraction has 6807 states and 9933 transitions. [2023-12-02 19:37:59,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 19:37:59,956 INFO L276 IsEmpty]: Start isEmpty. Operand 6807 states and 9933 transitions. [2023-12-02 19:37:59,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-02 19:37:59,957 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:37:59,957 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:37:59,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-02 19:37:59,957 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:37:59,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:37:59,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1321142727, now seen corresponding path program 1 times [2023-12-02 19:37:59,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:37:59,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890930280] [2023-12-02 19:37:59,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:37:59,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:38:00,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:38:00,201 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 19:38:00,201 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:38:00,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890930280] [2023-12-02 19:38:00,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890930280] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:38:00,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:38:00,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:38:00,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510629965] [2023-12-02 19:38:00,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:38:00,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:38:00,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:38:00,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:38:00,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:38:00,203 INFO L87 Difference]: Start difference. First operand 6807 states and 9933 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-02 19:38:05,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:38:07,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:38:07,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:38:07,804 INFO L93 Difference]: Finished difference Result 6807 states and 9933 transitions. [2023-12-02 19:38:07,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:38:07,804 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 86 [2023-12-02 19:38:07,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:38:07,827 INFO L225 Difference]: With dead ends: 6807 [2023-12-02 19:38:07,827 INFO L226 Difference]: Without dead ends: 6805 [2023-12-02 19:38:07,829 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 [2023-12-02 19:38:07,829 INFO L413 NwaCegarLoop]: 4601 mSDtfsCounter, 5093 mSDsluCounter, 4601 mSDsCounter, 0 mSdLazyCounter, 1034 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5093 SdHoareTripleChecker+Valid, 9202 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1034 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2023-12-02 19:38:07,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5093 Valid, 9202 Invalid, 1036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1034 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2023-12-02 19:38:07,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6805 states. [2023-12-02 19:38:08,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6805 to 6805. [2023-12-02 19:38:08,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6805 states, 3986 states have (on average 1.2774711490215755) internal successors, (5092), 4082 states have internal predecessors, (5092), 2286 states have call successors, (2286), 519 states have call predecessors, (2286), 514 states have return successors, (2553), 2260 states have call predecessors, (2553), 2284 states have call successors, (2553) [2023-12-02 19:38:08,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6805 states to 6805 states and 9931 transitions. [2023-12-02 19:38:08,515 INFO L78 Accepts]: Start accepts. Automaton has 6805 states and 9931 transitions. Word has length 86 [2023-12-02 19:38:08,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:38:08,515 INFO L495 AbstractCegarLoop]: Abstraction has 6805 states and 9931 transitions. [2023-12-02 19:38:08,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-02 19:38:08,515 INFO L276 IsEmpty]: Start isEmpty. Operand 6805 states and 9931 transitions. [2023-12-02 19:38:08,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-02 19:38:08,516 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:38:08,517 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:38:08,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-02 19:38:08,517 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:38:08,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:38:08,517 INFO L85 PathProgramCache]: Analyzing trace with hash -645537310, now seen corresponding path program 1 times [2023-12-02 19:38:08,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:38:08,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191250758] [2023-12-02 19:38:08,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:38:08,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:38:08,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:38:08,731 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 19:38:08,731 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:38:08,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191250758] [2023-12-02 19:38:08,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191250758] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:38:08,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:38:08,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:38:08,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332717864] [2023-12-02 19:38:08,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:38:08,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:38:08,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:38:08,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:38:08,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:38:08,733 INFO L87 Difference]: Start difference. First operand 6805 states and 9931 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-02 19:38:14,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:38:16,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:38:16,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:38:16,238 INFO L93 Difference]: Finished difference Result 6805 states and 9931 transitions. [2023-12-02 19:38:16,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:38:16,238 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 91 [2023-12-02 19:38:16,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:38:16,256 INFO L225 Difference]: With dead ends: 6805 [2023-12-02 19:38:16,256 INFO L226 Difference]: Without dead ends: 6803 [2023-12-02 19:38:16,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:38:16,258 INFO L413 NwaCegarLoop]: 4599 mSDtfsCounter, 5092 mSDsluCounter, 4599 mSDsCounter, 0 mSdLazyCounter, 1034 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5092 SdHoareTripleChecker+Valid, 9198 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1034 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2023-12-02 19:38:16,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5092 Valid, 9198 Invalid, 1036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1034 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2023-12-02 19:38:16,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6803 states. [2023-12-02 19:38:16,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6803 to 6803. [2023-12-02 19:38:16,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6803 states, 3985 states have (on average 1.2772898368883312) internal successors, (5090), 4080 states have internal predecessors, (5090), 2286 states have call successors, (2286), 519 states have call predecessors, (2286), 514 states have return successors, (2553), 2260 states have call predecessors, (2553), 2284 states have call successors, (2553) [2023-12-02 19:38:16,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6803 states to 6803 states and 9929 transitions. [2023-12-02 19:38:16,949 INFO L78 Accepts]: Start accepts. Automaton has 6803 states and 9929 transitions. Word has length 91 [2023-12-02 19:38:16,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:38:16,949 INFO L495 AbstractCegarLoop]: Abstraction has 6803 states and 9929 transitions. [2023-12-02 19:38:16,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-02 19:38:16,949 INFO L276 IsEmpty]: Start isEmpty. Operand 6803 states and 9929 transitions. [2023-12-02 19:38:16,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 19:38:16,951 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:38:16,951 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:38:16,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-02 19:38:16,951 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:38:16,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:38:16,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1980732279, now seen corresponding path program 1 times [2023-12-02 19:38:16,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:38:16,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509208077] [2023-12-02 19:38:16,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:38:16,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:38:16,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:38:17,158 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 19:38:17,159 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:38:17,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509208077] [2023-12-02 19:38:17,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509208077] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:38:17,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:38:17,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:38:17,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661814169] [2023-12-02 19:38:17,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:38:17,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:38:17,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:38:17,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:38:17,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:38:17,160 INFO L87 Difference]: Start difference. First operand 6803 states and 9929 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-02 19:38:22,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:38:24,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:38:24,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:38:24,633 INFO L93 Difference]: Finished difference Result 6803 states and 9929 transitions. [2023-12-02 19:38:24,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:38:24,633 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 96 [2023-12-02 19:38:24,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:38:24,651 INFO L225 Difference]: With dead ends: 6803 [2023-12-02 19:38:24,652 INFO L226 Difference]: Without dead ends: 6801 [2023-12-02 19:38:24,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:38:24,655 INFO L413 NwaCegarLoop]: 4596 mSDtfsCounter, 5089 mSDsluCounter, 4596 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5089 SdHoareTripleChecker+Valid, 9192 SdHoareTripleChecker+Invalid, 1038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1036 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2023-12-02 19:38:24,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5089 Valid, 9192 Invalid, 1038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1036 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2023-12-02 19:38:24,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6801 states. [2023-12-02 19:38:25,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6801 to 6801. [2023-12-02 19:38:25,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6801 states, 3984 states have (on average 1.2771084337349397) internal successors, (5088), 4078 states have internal predecessors, (5088), 2286 states have call successors, (2286), 519 states have call predecessors, (2286), 514 states have return successors, (2553), 2260 states have call predecessors, (2553), 2284 states have call successors, (2553) [2023-12-02 19:38:25,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6801 states to 6801 states and 9927 transitions. [2023-12-02 19:38:25,344 INFO L78 Accepts]: Start accepts. Automaton has 6801 states and 9927 transitions. Word has length 96 [2023-12-02 19:38:25,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:38:25,344 INFO L495 AbstractCegarLoop]: Abstraction has 6801 states and 9927 transitions. [2023-12-02 19:38:25,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-02 19:38:25,345 INFO L276 IsEmpty]: Start isEmpty. Operand 6801 states and 9927 transitions. [2023-12-02 19:38:25,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-02 19:38:25,346 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:38:25,347 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:38:25,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-02 19:38:25,347 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:38:25,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:38:25,347 INFO L85 PathProgramCache]: Analyzing trace with hash 455298504, now seen corresponding path program 1 times [2023-12-02 19:38:25,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:38:25,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582168350] [2023-12-02 19:38:25,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:38:25,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:38:25,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:38:25,552 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 19:38:25,552 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:38:25,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582168350] [2023-12-02 19:38:25,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582168350] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:38:25,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:38:25,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:38:25,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611183346] [2023-12-02 19:38:25,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:38:25,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:38:25,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:38:25,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:38:25,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:38:25,554 INFO L87 Difference]: Start difference. First operand 6801 states and 9927 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-02 19:38:31,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:38:33,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:38:33,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:38:33,371 INFO L93 Difference]: Finished difference Result 6801 states and 9927 transitions. [2023-12-02 19:38:33,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:38:33,372 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 101 [2023-12-02 19:38:33,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:38:33,390 INFO L225 Difference]: With dead ends: 6801 [2023-12-02 19:38:33,390 INFO L226 Difference]: Without dead ends: 6799 [2023-12-02 19:38:33,393 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 [2023-12-02 19:38:33,394 INFO L413 NwaCegarLoop]: 4595 mSDtfsCounter, 5086 mSDsluCounter, 4595 mSDsCounter, 0 mSdLazyCounter, 1034 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5086 SdHoareTripleChecker+Valid, 9190 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1034 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2023-12-02 19:38:33,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5086 Valid, 9190 Invalid, 1036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1034 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2023-12-02 19:38:33,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6799 states. [2023-12-02 19:38:34,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6799 to 6799. [2023-12-02 19:38:34,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6799 states, 3983 states have (on average 1.2769269394928446) internal successors, (5086), 4076 states have internal predecessors, (5086), 2286 states have call successors, (2286), 519 states have call predecessors, (2286), 514 states have return successors, (2553), 2260 states have call predecessors, (2553), 2284 states have call successors, (2553) [2023-12-02 19:38:34,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6799 states to 6799 states and 9925 transitions. [2023-12-02 19:38:34,079 INFO L78 Accepts]: Start accepts. Automaton has 6799 states and 9925 transitions. Word has length 101 [2023-12-02 19:38:34,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:38:34,080 INFO L495 AbstractCegarLoop]: Abstraction has 6799 states and 9925 transitions. [2023-12-02 19:38:34,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-02 19:38:34,080 INFO L276 IsEmpty]: Start isEmpty. Operand 6799 states and 9925 transitions. [2023-12-02 19:38:34,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-02 19:38:34,081 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:38:34,082 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:38:34,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-02 19:38:34,082 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:38:34,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:38:34,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1862942220, now seen corresponding path program 1 times [2023-12-02 19:38:34,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:38:34,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783666119] [2023-12-02 19:38:34,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:38:34,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:38:34,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:38:34,582 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2023-12-02 19:38:34,582 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:38:34,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783666119] [2023-12-02 19:38:34,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783666119] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:38:34,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:38:34,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 19:38:34,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018734278] [2023-12-02 19:38:34,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:38:34,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 19:38:34,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:38:34,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 19:38:34,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:38:34,585 INFO L87 Difference]: Start difference. First operand 6799 states and 9925 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-02 19:38:41,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:38:43,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:38:45,229 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 [] [2023-12-02 19:38:45,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:38:45,294 INFO L93 Difference]: Finished difference Result 6821 states and 9941 transitions. [2023-12-02 19:38:45,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 19:38:45,294 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 106 [2023-12-02 19:38:45,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:38:45,310 INFO L225 Difference]: With dead ends: 6821 [2023-12-02 19:38:45,310 INFO L226 Difference]: Without dead ends: 6819 [2023-12-02 19:38:45,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 19:38:45,312 INFO L413 NwaCegarLoop]: 4598 mSDtfsCounter, 5033 mSDsluCounter, 9240 mSDsCounter, 0 mSdLazyCounter, 1573 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5035 SdHoareTripleChecker+Valid, 13838 SdHoareTripleChecker+Invalid, 1577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1573 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2023-12-02 19:38:45,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5035 Valid, 13838 Invalid, 1577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1573 Invalid, 2 Unknown, 0 Unchecked, 9.8s Time] [2023-12-02 19:38:45,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6819 states. [2023-12-02 19:38:46,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6819 to 6817. [2023-12-02 19:38:46,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6817 states, 3995 states have (on average 1.2760951188986234) internal successors, (5098), 4088 states have internal predecessors, (5098), 2286 states have call successors, (2286), 525 states have call predecessors, (2286), 520 states have return successors, (2553), 2260 states have call predecessors, (2553), 2284 states have call successors, (2553) [2023-12-02 19:38:46,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6817 states to 6817 states and 9937 transitions. [2023-12-02 19:38:46,036 INFO L78 Accepts]: Start accepts. Automaton has 6817 states and 9937 transitions. Word has length 106 [2023-12-02 19:38:46,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:38:46,037 INFO L495 AbstractCegarLoop]: Abstraction has 6817 states and 9937 transitions. [2023-12-02 19:38:46,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-02 19:38:46,037 INFO L276 IsEmpty]: Start isEmpty. Operand 6817 states and 9937 transitions. [2023-12-02 19:38:46,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-02 19:38:46,038 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:38:46,039 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:38:46,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-02 19:38:46,039 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:38:46,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:38:46,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1185845202, now seen corresponding path program 1 times [2023-12-02 19:38:46,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:38:46,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617122961] [2023-12-02 19:38:46,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:38:46,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:38:46,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:38:46,515 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2023-12-02 19:38:46,515 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:38:46,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617122961] [2023-12-02 19:38:46,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617122961] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:38:46,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:38:46,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 19:38:46,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826134992] [2023-12-02 19:38:46,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:38:46,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 19:38:46,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:38:46,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 19:38:46,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:38:46,517 INFO L87 Difference]: Start difference. First operand 6817 states and 9937 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-02 19:38:57,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:38:59,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:39:01,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:39:01,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:39:01,386 INFO L93 Difference]: Finished difference Result 6829 states and 9945 transitions. [2023-12-02 19:39:01,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 19:39:01,387 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 106 [2023-12-02 19:39:01,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:39:01,405 INFO L225 Difference]: With dead ends: 6829 [2023-12-02 19:39:01,405 INFO L226 Difference]: Without dead ends: 6827 [2023-12-02 19:39:01,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-02 19:39:01,408 INFO L413 NwaCegarLoop]: 5134 mSDtfsCounter, 811 mSDsluCounter, 14765 mSDsCounter, 0 mSdLazyCounter, 2335 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 812 SdHoareTripleChecker+Valid, 19899 SdHoareTripleChecker+Invalid, 2338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2335 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2023-12-02 19:39:01,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [812 Valid, 19899 Invalid, 2338 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2335 Invalid, 3 Unknown, 0 Unchecked, 14.0s Time] [2023-12-02 19:39:01,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6827 states. [2023-12-02 19:39:02,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6827 to 6821. [2023-12-02 19:39:02,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6821 states, 3998 states have (on average 1.2756378189094548) internal successors, (5100), 4091 states have internal predecessors, (5100), 2286 states have call successors, (2286), 526 states have call predecessors, (2286), 521 states have return successors, (2553), 2260 states have call predecessors, (2553), 2284 states have call successors, (2553) [2023-12-02 19:39:02,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6821 states to 6821 states and 9939 transitions. [2023-12-02 19:39:02,122 INFO L78 Accepts]: Start accepts. Automaton has 6821 states and 9939 transitions. Word has length 106 [2023-12-02 19:39:02,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:39:02,122 INFO L495 AbstractCegarLoop]: Abstraction has 6821 states and 9939 transitions. [2023-12-02 19:39:02,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-02 19:39:02,122 INFO L276 IsEmpty]: Start isEmpty. Operand 6821 states and 9939 transitions. [2023-12-02 19:39:02,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-02 19:39:02,124 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:39:02,124 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:39:02,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-02 19:39:02,124 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:39:02,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:39:02,125 INFO L85 PathProgramCache]: Analyzing trace with hash -329037924, now seen corresponding path program 1 times [2023-12-02 19:39:02,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:39:02,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100409811] [2023-12-02 19:39:02,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:39:02,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:39:02,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:39:02,384 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 19:39:02,384 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:39:02,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100409811] [2023-12-02 19:39:02,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100409811] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:39:02,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:39:02,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:39:02,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434012675] [2023-12-02 19:39:02,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:39:02,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:39:02,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:39:02,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:39:02,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:39:02,386 INFO L87 Difference]: Start difference. First operand 6821 states and 9939 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-02 19:39:08,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:39:08,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:39:08,536 INFO L93 Difference]: Finished difference Result 6821 states and 9939 transitions. [2023-12-02 19:39:08,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:39:08,536 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 106 [2023-12-02 19:39:08,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:39:08,554 INFO L225 Difference]: With dead ends: 6821 [2023-12-02 19:39:08,554 INFO L226 Difference]: Without dead ends: 6819 [2023-12-02 19:39:08,557 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 [2023-12-02 19:39:08,557 INFO L413 NwaCegarLoop]: 4593 mSDtfsCounter, 5083 mSDsluCounter, 4593 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5083 SdHoareTripleChecker+Valid, 9186 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-12-02 19:39:08,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5083 Valid, 9186 Invalid, 1036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1035 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2023-12-02 19:39:08,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6819 states. [2023-12-02 19:39:09,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6819 to 6819. [2023-12-02 19:39:09,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6819 states, 3997 states have (on average 1.2754565924443333) internal successors, (5098), 4089 states have internal predecessors, (5098), 2286 states have call successors, (2286), 526 states have call predecessors, (2286), 521 states have return successors, (2553), 2260 states have call predecessors, (2553), 2284 states have call successors, (2553) [2023-12-02 19:39:09,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6819 states to 6819 states and 9937 transitions. [2023-12-02 19:39:09,312 INFO L78 Accepts]: Start accepts. Automaton has 6819 states and 9937 transitions. Word has length 106 [2023-12-02 19:39:09,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:39:09,312 INFO L495 AbstractCegarLoop]: Abstraction has 6819 states and 9937 transitions. [2023-12-02 19:39:09,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-02 19:39:09,312 INFO L276 IsEmpty]: Start isEmpty. Operand 6819 states and 9937 transitions. [2023-12-02 19:39:09,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-02 19:39:09,314 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:39:09,314 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:39:09,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-02 19:39:09,314 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:39:09,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:39:09,314 INFO L85 PathProgramCache]: Analyzing trace with hash -2012223748, now seen corresponding path program 1 times [2023-12-02 19:39:09,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:39:09,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458068329] [2023-12-02 19:39:09,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:39:09,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:39:09,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:39:09,819 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2023-12-02 19:39:09,819 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:39:09,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458068329] [2023-12-02 19:39:09,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458068329] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:39:09,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:39:09,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 19:39:09,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813642386] [2023-12-02 19:39:09,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:39:09,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 19:39:09,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:39:09,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 19:39:09,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:39:09,821 INFO L87 Difference]: Start difference. First operand 6819 states and 9937 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-02 19:39:18,803 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 [] [2023-12-02 19:39:20,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:39:22,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:39:24,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:39:26,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:39:28,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:39:30,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:39:30,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:39:30,972 INFO L93 Difference]: Finished difference Result 6983 states and 10111 transitions. [2023-12-02 19:39:30,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 19:39:30,973 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 108 [2023-12-02 19:39:30,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:39:30,991 INFO L225 Difference]: With dead ends: 6983 [2023-12-02 19:39:30,991 INFO L226 Difference]: Without dead ends: 6981 [2023-12-02 19:39:30,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-02 19:39:30,994 INFO L413 NwaCegarLoop]: 7913 mSDtfsCounter, 5141 mSDsluCounter, 19397 mSDsCounter, 0 mSdLazyCounter, 3215 mSolverCounterSat, 0 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5142 SdHoareTripleChecker+Valid, 27310 SdHoareTripleChecker+Invalid, 3222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3215 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:39:30,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5142 Valid, 27310 Invalid, 3222 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 3215 Invalid, 7 Unknown, 0 Unchecked, 20.1s Time] [2023-12-02 19:39:30,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6981 states. [2023-12-02 19:39:31,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6981 to 6827. [2023-12-02 19:39:31,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6827 states, 4003 states have (on average 1.275043717212091) internal successors, (5104), 4095 states have internal predecessors, (5104), 2286 states have call successors, (2286), 528 states have call predecessors, (2286), 523 states have return successors, (2553), 2260 states have call predecessors, (2553), 2284 states have call successors, (2553) [2023-12-02 19:39:31,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6827 states to 6827 states and 9943 transitions. [2023-12-02 19:39:31,767 INFO L78 Accepts]: Start accepts. Automaton has 6827 states and 9943 transitions. Word has length 108 [2023-12-02 19:39:31,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:39:31,767 INFO L495 AbstractCegarLoop]: Abstraction has 6827 states and 9943 transitions. [2023-12-02 19:39:31,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-02 19:39:31,767 INFO L276 IsEmpty]: Start isEmpty. Operand 6827 states and 9943 transitions. [2023-12-02 19:39:31,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-02 19:39:31,769 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:39:31,769 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:39:31,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-02 19:39:31,769 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:39:31,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:39:31,770 INFO L85 PathProgramCache]: Analyzing trace with hash 453455026, now seen corresponding path program 1 times [2023-12-02 19:39:31,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:39:31,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039072413] [2023-12-02 19:39:31,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:39:31,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:39:31,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:39:31,993 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 19:39:31,993 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:39:31,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039072413] [2023-12-02 19:39:31,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039072413] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:39:31,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:39:31,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:39:31,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805881048] [2023-12-02 19:39:31,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:39:31,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:39:31,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:39:31,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:39:31,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:39:31,996 INFO L87 Difference]: Start difference. First operand 6827 states and 9943 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-02 19:39:37,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:39:39,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:39:39,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:39:39,824 INFO L93 Difference]: Finished difference Result 6827 states and 9943 transitions. [2023-12-02 19:39:39,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:39:39,824 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 111 [2023-12-02 19:39:39,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:39:39,839 INFO L225 Difference]: With dead ends: 6827 [2023-12-02 19:39:39,839 INFO L226 Difference]: Without dead ends: 6825 [2023-12-02 19:39:39,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:39:39,841 INFO L413 NwaCegarLoop]: 4591 mSDtfsCounter, 5080 mSDsluCounter, 4591 mSDsCounter, 0 mSdLazyCounter, 1034 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5080 SdHoareTripleChecker+Valid, 9182 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1034 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2023-12-02 19:39:39,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5080 Valid, 9182 Invalid, 1036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1034 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2023-12-02 19:39:39,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6825 states. [2023-12-02 19:39:40,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6825 to 6825. [2023-12-02 19:39:40,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6825 states, 4002 states have (on average 1.274862568715642) internal successors, (5102), 4093 states have internal predecessors, (5102), 2286 states have call successors, (2286), 528 states have call predecessors, (2286), 523 states have return successors, (2553), 2260 states have call predecessors, (2553), 2284 states have call successors, (2553) [2023-12-02 19:39:40,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6825 states to 6825 states and 9941 transitions. [2023-12-02 19:39:40,573 INFO L78 Accepts]: Start accepts. Automaton has 6825 states and 9941 transitions. Word has length 111 [2023-12-02 19:39:40,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:39:40,574 INFO L495 AbstractCegarLoop]: Abstraction has 6825 states and 9941 transitions. [2023-12-02 19:39:40,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-02 19:39:40,574 INFO L276 IsEmpty]: Start isEmpty. Operand 6825 states and 9941 transitions. [2023-12-02 19:39:40,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-02 19:39:40,576 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:39:40,576 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:39:40,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-02 19:39:40,576 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:39:40,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:39:40,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1754497776, now seen corresponding path program 1 times [2023-12-02 19:39:40,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:39:40,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914705935] [2023-12-02 19:39:40,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:39:40,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:39:40,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:39:40,808 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 19:39:40,808 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:39:40,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914705935] [2023-12-02 19:39:40,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914705935] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:39:40,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:39:40,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:39:40,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105681894] [2023-12-02 19:39:40,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:39:40,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:39:40,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:39:40,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:39:40,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:39:40,811 INFO L87 Difference]: Start difference. First operand 6825 states and 9941 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-12-02 19:39:46,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:39:48,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:39:48,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:39:48,452 INFO L93 Difference]: Finished difference Result 6825 states and 9941 transitions. [2023-12-02 19:39:48,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:39:48,453 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 116 [2023-12-02 19:39:48,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:39:48,469 INFO L225 Difference]: With dead ends: 6825 [2023-12-02 19:39:48,469 INFO L226 Difference]: Without dead ends: 6823 [2023-12-02 19:39:48,471 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 [2023-12-02 19:39:48,472 INFO L413 NwaCegarLoop]: 4589 mSDtfsCounter, 5077 mSDsluCounter, 4589 mSDsCounter, 0 mSdLazyCounter, 1034 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5077 SdHoareTripleChecker+Valid, 9178 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1034 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2023-12-02 19:39:48,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5077 Valid, 9178 Invalid, 1036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1034 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2023-12-02 19:39:48,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6823 states. [2023-12-02 19:39:49,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6823 to 6823. [2023-12-02 19:39:49,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6823 states, 4001 states have (on average 1.2746813296675832) internal successors, (5100), 4091 states have internal predecessors, (5100), 2286 states have call successors, (2286), 528 states have call predecessors, (2286), 523 states have return successors, (2553), 2260 states have call predecessors, (2553), 2284 states have call successors, (2553) [2023-12-02 19:39:49,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6823 states to 6823 states and 9939 transitions. [2023-12-02 19:39:49,264 INFO L78 Accepts]: Start accepts. Automaton has 6823 states and 9939 transitions. Word has length 116 [2023-12-02 19:39:49,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:39:49,265 INFO L495 AbstractCegarLoop]: Abstraction has 6823 states and 9939 transitions. [2023-12-02 19:39:49,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-12-02 19:39:49,265 INFO L276 IsEmpty]: Start isEmpty. Operand 6823 states and 9939 transitions. [2023-12-02 19:39:49,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-02 19:39:49,267 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:39:49,267 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 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] [2023-12-02 19:39:49,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-02 19:39:49,267 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_assert_linux_net_sock__double_releaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:39:49,267 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:39:49,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1584138395, now seen corresponding path program 1 times [2023-12-02 19:39:49,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:39:49,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183020766] [2023-12-02 19:39:49,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:39:49,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:39:49,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:39:49,879 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-02 19:39:49,879 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:39:49,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183020766] [2023-12-02 19:39:49,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183020766] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:39:49,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:39:49,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-02 19:39:49,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378319199] [2023-12-02 19:39:49,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:39:49,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 19:39:49,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:39:49,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 19:39:49,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-02 19:39:49,882 INFO L87 Difference]: Start difference. First operand 6823 states and 9939 transitions. Second operand has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2023-12-02 19:40:21,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:40:23,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:40:25,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:40:27,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:40:29,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:40:33,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:40:35,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:40:37,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:40:39,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:40:41,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:40:43,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:40:43,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:40:43,445 INFO L93 Difference]: Finished difference Result 13525 states and 19724 transitions. [2023-12-02 19:40:43,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-02 19:40:43,445 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) Word has length 121 [2023-12-02 19:40:43,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:40:43,526 INFO L225 Difference]: With dead ends: 13525 [2023-12-02 19:40:43,526 INFO L226 Difference]: Without dead ends: 13523 [2023-12-02 19:40:43,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-12-02 19:40:43,530 INFO L413 NwaCegarLoop]: 4583 mSDtfsCounter, 10678 mSDsluCounter, 10082 mSDsCounter, 0 mSdLazyCounter, 10850 mSolverCounterSat, 2742 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11657 SdHoareTripleChecker+Valid, 14665 SdHoareTripleChecker+Invalid, 13603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2742 IncrementalHoareTripleChecker+Valid, 10850 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:40:43,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11657 Valid, 14665 Invalid, 13603 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2742 Valid, 10850 Invalid, 11 Unknown, 0 Unchecked, 51.1s Time] [2023-12-02 19:40:43,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13523 states. [2023-12-02 19:40:45,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13523 to 13375. [2023-12-02 19:40:45,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13375 states, 7861 states have (on average 1.2778272484416742) internal successors, (10045), 8030 states have internal predecessors, (10045), 4491 states have call successors, (4491), 1024 states have call predecessors, (4491), 1010 states have return successors, (5009), 4433 states have call predecessors, (5009), 4489 states have call successors, (5009) [2023-12-02 19:40:45,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13375 states to 13375 states and 19545 transitions. [2023-12-02 19:40:45,210 INFO L78 Accepts]: Start accepts. Automaton has 13375 states and 19545 transitions. Word has length 121 [2023-12-02 19:40:45,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:40:45,211 INFO L495 AbstractCegarLoop]: Abstraction has 13375 states and 19545 transitions. [2023-12-02 19:40:45,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2023-12-02 19:40:45,211 INFO L276 IsEmpty]: Start isEmpty. Operand 13375 states and 19545 transitions. [2023-12-02 19:40:45,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-02 19:40:45,213 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:40:45,213 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:40:45,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-02 19:40:45,214 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:40:45,214 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:40:45,214 INFO L85 PathProgramCache]: Analyzing trace with hash 934661762, now seen corresponding path program 1 times [2023-12-02 19:40:45,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:40:45,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382629834] [2023-12-02 19:40:45,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:40:45,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:40:45,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:40:45,574 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 19:40:45,574 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:40:45,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382629834] [2023-12-02 19:40:45,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382629834] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:40:45,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:40:45,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:40:45,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707324301] [2023-12-02 19:40:45,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:40:45,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:40:45,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:40:45,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:40:45,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:40:45,575 INFO L87 Difference]: Start difference. First operand 13375 states and 19545 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-12-02 19:40:52,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:40:54,223 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 [] [2023-12-02 19:40:54,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:40:54,411 INFO L93 Difference]: Finished difference Result 13375 states and 19545 transitions. [2023-12-02 19:40:54,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:40:54,412 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 121 [2023-12-02 19:40:54,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:40:54,443 INFO L225 Difference]: With dead ends: 13375 [2023-12-02 19:40:54,444 INFO L226 Difference]: Without dead ends: 13373 [2023-12-02 19:40:54,448 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 [2023-12-02 19:40:54,448 INFO L413 NwaCegarLoop]: 4587 mSDtfsCounter, 5074 mSDsluCounter, 4587 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5074 SdHoareTripleChecker+Valid, 9174 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2023-12-02 19:40:54,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5074 Valid, 9174 Invalid, 1036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1035 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2023-12-02 19:40:54,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13373 states. [2023-12-02 19:40:56,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13373 to 13373. [2023-12-02 19:40:56,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13373 states, 7860 states have (on average 1.277735368956743) internal successors, (10043), 8028 states have internal predecessors, (10043), 4491 states have call successors, (4491), 1024 states have call predecessors, (4491), 1010 states have return successors, (5009), 4433 states have call predecessors, (5009), 4489 states have call successors, (5009) [2023-12-02 19:40:56,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13373 states to 13373 states and 19543 transitions. [2023-12-02 19:40:56,223 INFO L78 Accepts]: Start accepts. Automaton has 13373 states and 19543 transitions. Word has length 121 [2023-12-02 19:40:56,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:40:56,223 INFO L495 AbstractCegarLoop]: Abstraction has 13373 states and 19543 transitions. [2023-12-02 19:40:56,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-12-02 19:40:56,223 INFO L276 IsEmpty]: Start isEmpty. Operand 13373 states and 19543 transitions. [2023-12-02 19:40:56,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-02 19:40:56,226 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:40:56,226 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:40:56,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-02 19:40:56,226 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:40:56,226 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:40:56,226 INFO L85 PathProgramCache]: Analyzing trace with hash -153646997, now seen corresponding path program 1 times [2023-12-02 19:40:56,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:40:56,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431055050] [2023-12-02 19:40:56,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:40:56,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:40:56,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:40:56,701 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2023-12-02 19:40:56,702 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:40:56,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431055050] [2023-12-02 19:40:56,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431055050] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:40:56,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:40:56,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 19:40:56,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330503346] [2023-12-02 19:40:56,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:40:56,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 19:40:56,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:40:56,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 19:40:56,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:40:56,704 INFO L87 Difference]: Start difference. First operand 13373 states and 19543 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-02 19:41:04,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:41:06,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:41:08,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:41:08,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:41:08,551 INFO L93 Difference]: Finished difference Result 13427 states and 19580 transitions. [2023-12-02 19:41:08,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 19:41:08,552 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 142 [2023-12-02 19:41:08,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:41:08,583 INFO L225 Difference]: With dead ends: 13427 [2023-12-02 19:41:08,583 INFO L226 Difference]: Without dead ends: 13425 [2023-12-02 19:41:08,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 19:41:08,588 INFO L413 NwaCegarLoop]: 4586 mSDtfsCounter, 5008 mSDsluCounter, 9203 mSDsCounter, 0 mSdLazyCounter, 1580 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5010 SdHoareTripleChecker+Valid, 13789 SdHoareTripleChecker+Invalid, 1583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1580 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2023-12-02 19:41:08,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5010 Valid, 13789 Invalid, 1583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1580 Invalid, 1 Unknown, 0 Unchecked, 9.8s Time] [2023-12-02 19:41:08,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13425 states. [2023-12-02 19:41:10,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13425 to 13423. [2023-12-02 19:41:10,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13423 states, 7887 states have (on average 1.2762774185368329) internal successors, (10066), 8054 states have internal predecessors, (10066), 4495 states have call successors, (4495), 1044 states have call predecessors, (4495), 1030 states have return successors, (5013), 4437 states have call predecessors, (5013), 4493 states have call successors, (5013) [2023-12-02 19:41:10,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13423 states to 13423 states and 19574 transitions. [2023-12-02 19:41:10,369 INFO L78 Accepts]: Start accepts. Automaton has 13423 states and 19574 transitions. Word has length 142 [2023-12-02 19:41:10,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:41:10,370 INFO L495 AbstractCegarLoop]: Abstraction has 13423 states and 19574 transitions. [2023-12-02 19:41:10,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-02 19:41:10,370 INFO L276 IsEmpty]: Start isEmpty. Operand 13423 states and 19574 transitions. [2023-12-02 19:41:10,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-02 19:41:10,372 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:41:10,372 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:41:10,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-02 19:41:10,372 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:41:10,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:41:10,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1573971415, now seen corresponding path program 1 times [2023-12-02 19:41:10,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:41:10,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368212755] [2023-12-02 19:41:10,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:41:10,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:41:10,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:41:10,621 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 19:41:10,621 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:41:10,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368212755] [2023-12-02 19:41:10,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368212755] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:41:10,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:41:10,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:41:10,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114448328] [2023-12-02 19:41:10,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:41:10,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:41:10,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:41:10,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:41:10,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:41:10,622 INFO L87 Difference]: Start difference. First operand 13423 states and 19574 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-12-02 19:41:18,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:41:18,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:41:18,319 INFO L93 Difference]: Finished difference Result 13423 states and 19574 transitions. [2023-12-02 19:41:18,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:41:18,320 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 126 [2023-12-02 19:41:18,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:41:18,354 INFO L225 Difference]: With dead ends: 13423 [2023-12-02 19:41:18,354 INFO L226 Difference]: Without dead ends: 13421 [2023-12-02 19:41:18,359 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 [2023-12-02 19:41:18,359 INFO L413 NwaCegarLoop]: 4583 mSDtfsCounter, 5069 mSDsluCounter, 4583 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5069 SdHoareTripleChecker+Valid, 9166 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-12-02 19:41:18,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5069 Valid, 9166 Invalid, 1036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1035 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2023-12-02 19:41:18,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13421 states. [2023-12-02 19:41:20,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13421 to 13421. [2023-12-02 19:41:20,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13421 states, 7886 states have (on average 1.2761856454476288) internal successors, (10064), 8052 states have internal predecessors, (10064), 4495 states have call successors, (4495), 1044 states have call predecessors, (4495), 1030 states have return successors, (5013), 4437 states have call predecessors, (5013), 4493 states have call successors, (5013) [2023-12-02 19:41:20,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13421 states to 13421 states and 19572 transitions. [2023-12-02 19:41:20,402 INFO L78 Accepts]: Start accepts. Automaton has 13421 states and 19572 transitions. Word has length 126 [2023-12-02 19:41:20,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:41:20,402 INFO L495 AbstractCegarLoop]: Abstraction has 13421 states and 19572 transitions. [2023-12-02 19:41:20,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-12-02 19:41:20,402 INFO L276 IsEmpty]: Start isEmpty. Operand 13421 states and 19572 transitions. [2023-12-02 19:41:20,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-02 19:41:20,406 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:41:20,406 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:41:20,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-02 19:41:20,406 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:41:20,406 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:41:20,407 INFO L85 PathProgramCache]: Analyzing trace with hash -312176931, now seen corresponding path program 1 times [2023-12-02 19:41:20,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:41:20,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782342220] [2023-12-02 19:41:20,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:41:20,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:41:20,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:41:20,694 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 19:41:20,694 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:41:20,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782342220] [2023-12-02 19:41:20,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782342220] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:41:20,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:41:20,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:41:20,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056332078] [2023-12-02 19:41:20,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:41:20,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:41:20,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:41:20,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:41:20,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:41:20,696 INFO L87 Difference]: Start difference. First operand 13421 states and 19572 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-02 19:41:30,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:41:31,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:41:33,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:41:33,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:41:33,408 INFO L93 Difference]: Finished difference Result 13561 states and 19725 transitions. [2023-12-02 19:41:33,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 19:41:33,408 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 131 [2023-12-02 19:41:33,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:41:33,441 INFO L225 Difference]: With dead ends: 13561 [2023-12-02 19:41:33,441 INFO L226 Difference]: Without dead ends: 13559 [2023-12-02 19:41:33,445 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 [2023-12-02 19:41:33,445 INFO L413 NwaCegarLoop]: 4583 mSDtfsCounter, 4989 mSDsluCounter, 9142 mSDsCounter, 0 mSdLazyCounter, 1556 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4989 SdHoareTripleChecker+Valid, 13725 SdHoareTripleChecker+Invalid, 1559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1556 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2023-12-02 19:41:33,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4989 Valid, 13725 Invalid, 1559 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1556 Invalid, 2 Unknown, 0 Unchecked, 10.5s Time] [2023-12-02 19:41:33,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13559 states. [2023-12-02 19:41:35,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13559 to 13527. [2023-12-02 19:41:35,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13527 states, 7941 states have (on average 1.2742727616169247) internal successors, (10119), 8107 states have internal predecessors, (10119), 4529 states have call successors, (4529), 1061 states have call predecessors, (4529), 1047 states have return successors, (5047), 4471 states have call predecessors, (5047), 4527 states have call successors, (5047) [2023-12-02 19:41:35,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13527 states to 13527 states and 19695 transitions. [2023-12-02 19:41:35,530 INFO L78 Accepts]: Start accepts. Automaton has 13527 states and 19695 transitions. Word has length 131 [2023-12-02 19:41:35,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:41:35,531 INFO L495 AbstractCegarLoop]: Abstraction has 13527 states and 19695 transitions. [2023-12-02 19:41:35,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-02 19:41:35,531 INFO L276 IsEmpty]: Start isEmpty. Operand 13527 states and 19695 transitions. [2023-12-02 19:41:35,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-12-02 19:41:35,537 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:41:35,537 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:41:35,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-02 19:41:35,538 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:41:35,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:41:35,538 INFO L85 PathProgramCache]: Analyzing trace with hash 116920347, now seen corresponding path program 1 times [2023-12-02 19:41:35,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:41:35,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127813616] [2023-12-02 19:41:35,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:41:35,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:41:35,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:41:35,904 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2023-12-02 19:41:35,904 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:41:35,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127813616] [2023-12-02 19:41:35,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127813616] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:41:35,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:41:35,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 19:41:35,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338684950] [2023-12-02 19:41:35,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:41:35,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 19:41:35,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:41:35,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 19:41:35,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:41:35,906 INFO L87 Difference]: Start difference. First operand 13527 states and 19695 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) [2023-12-02 19:41:44,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:41:47,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:41:49,574 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 [] [2023-12-02 19:41:49,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:41:49,775 INFO L93 Difference]: Finished difference Result 13529 states and 19696 transitions. [2023-12-02 19:41:49,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 19:41:49,776 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) Word has length 156 [2023-12-02 19:41:49,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:41:49,812 INFO L225 Difference]: With dead ends: 13529 [2023-12-02 19:41:49,812 INFO L226 Difference]: Without dead ends: 13527 [2023-12-02 19:41:49,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-02 19:41:49,818 INFO L413 NwaCegarLoop]: 4588 mSDtfsCounter, 51 mSDsluCounter, 13712 mSDsCounter, 0 mSdLazyCounter, 2088 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 18300 SdHoareTripleChecker+Invalid, 2092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2088 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2023-12-02 19:41:49,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 18300 Invalid, 2092 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2088 Invalid, 3 Unknown, 0 Unchecked, 11.6s Time] [2023-12-02 19:41:49,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13527 states. [2023-12-02 19:41:51,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13527 to 13527. [2023-12-02 19:41:51,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13527 states, 7941 states have (on average 1.2737690467195568) internal successors, (10115), 8107 states have internal predecessors, (10115), 4529 states have call successors, (4529), 1061 states have call predecessors, (4529), 1047 states have return successors, (5047), 4471 states have call predecessors, (5047), 4527 states have call successors, (5047) [2023-12-02 19:41:51,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13527 states to 13527 states and 19691 transitions. [2023-12-02 19:41:51,742 INFO L78 Accepts]: Start accepts. Automaton has 13527 states and 19691 transitions. Word has length 156 [2023-12-02 19:41:51,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:41:51,742 INFO L495 AbstractCegarLoop]: Abstraction has 13527 states and 19691 transitions. [2023-12-02 19:41:51,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) [2023-12-02 19:41:51,742 INFO L276 IsEmpty]: Start isEmpty. Operand 13527 states and 19691 transitions. [2023-12-02 19:41:51,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-02 19:41:51,745 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:41:51,745 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:41:51,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-02 19:41:51,746 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:41:51,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:41:51,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1710360351, now seen corresponding path program 1 times [2023-12-02 19:41:51,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:41:51,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895245950] [2023-12-02 19:41:51,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:41:51,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:41:51,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:41:51,964 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 19:41:51,964 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:41:51,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895245950] [2023-12-02 19:41:51,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895245950] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:41:51,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:41:51,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:41:51,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593604949] [2023-12-02 19:41:51,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:41:51,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:41:51,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:41:51,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:41:51,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:41:51,966 INFO L87 Difference]: Start difference. First operand 13527 states and 19691 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-12-02 19:41:58,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:42:01,005 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 [] [2023-12-02 19:42:01,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:42:01,285 INFO L93 Difference]: Finished difference Result 13527 states and 19691 transitions. [2023-12-02 19:42:01,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:42:01,286 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 136 [2023-12-02 19:42:01,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:42:01,319 INFO L225 Difference]: With dead ends: 13527 [2023-12-02 19:42:01,319 INFO L226 Difference]: Without dead ends: 13525 [2023-12-02 19:42:01,323 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 [2023-12-02 19:42:01,324 INFO L413 NwaCegarLoop]: 4581 mSDtfsCounter, 5065 mSDsluCounter, 4581 mSDsCounter, 0 mSdLazyCounter, 1034 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5065 SdHoareTripleChecker+Valid, 9162 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1034 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2023-12-02 19:42:01,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5065 Valid, 9162 Invalid, 1036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1034 Invalid, 2 Unknown, 0 Unchecked, 7.4s Time] [2023-12-02 19:42:01,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13525 states. [2023-12-02 19:42:03,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13525 to 13525. [2023-12-02 19:42:03,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13525 states, 7940 states have (on average 1.2736775818639798) internal successors, (10113), 8105 states have internal predecessors, (10113), 4529 states have call successors, (4529), 1061 states have call predecessors, (4529), 1047 states have return successors, (5047), 4471 states have call predecessors, (5047), 4527 states have call successors, (5047) [2023-12-02 19:42:03,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13525 states to 13525 states and 19689 transitions. [2023-12-02 19:42:03,326 INFO L78 Accepts]: Start accepts. Automaton has 13525 states and 19689 transitions. Word has length 136 [2023-12-02 19:42:03,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:42:03,327 INFO L495 AbstractCegarLoop]: Abstraction has 13525 states and 19689 transitions. [2023-12-02 19:42:03,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-12-02 19:42:03,327 INFO L276 IsEmpty]: Start isEmpty. Operand 13525 states and 19689 transitions. [2023-12-02 19:42:03,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-02 19:42:03,330 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:42:03,330 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:42:03,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-02 19:42:03,330 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:42:03,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:42:03,331 INFO L85 PathProgramCache]: Analyzing trace with hash 2040429453, now seen corresponding path program 1 times [2023-12-02 19:42:03,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:42:03,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380439824] [2023-12-02 19:42:03,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:42:03,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:42:03,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:42:03,553 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 19:42:03,553 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:42:03,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380439824] [2023-12-02 19:42:03,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380439824] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:42:03,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:42:03,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:42:03,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010285399] [2023-12-02 19:42:03,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:42:03,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:42:03,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:42:03,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:42:03,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:42:03,555 INFO L87 Difference]: Start difference. First operand 13525 states and 19689 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-12-02 19:42:10,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:42:12,886 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 [] [2023-12-02 19:42:13,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:42:13,121 INFO L93 Difference]: Finished difference Result 13525 states and 19689 transitions. [2023-12-02 19:42:13,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:42:13,122 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 141 [2023-12-02 19:42:13,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:42:13,157 INFO L225 Difference]: With dead ends: 13525 [2023-12-02 19:42:13,157 INFO L226 Difference]: Without dead ends: 13523 [2023-12-02 19:42:13,163 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 [2023-12-02 19:42:13,163 INFO L413 NwaCegarLoop]: 4579 mSDtfsCounter, 5062 mSDsluCounter, 4579 mSDsCounter, 0 mSdLazyCounter, 1034 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5062 SdHoareTripleChecker+Valid, 9158 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1034 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2023-12-02 19:42:13,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5062 Valid, 9158 Invalid, 1036 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1034 Invalid, 2 Unknown, 0 Unchecked, 7.4s Time] [2023-12-02 19:42:13,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13523 states. [2023-12-02 19:42:15,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13523 to 13523. [2023-12-02 19:42:15,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13523 states, 7939 states have (on average 1.2735860939664945) internal successors, (10111), 8103 states have internal predecessors, (10111), 4529 states have call successors, (4529), 1061 states have call predecessors, (4529), 1047 states have return successors, (5047), 4471 states have call predecessors, (5047), 4527 states have call successors, (5047) [2023-12-02 19:42:15,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13523 states to 13523 states and 19687 transitions. [2023-12-02 19:42:15,193 INFO L78 Accepts]: Start accepts. Automaton has 13523 states and 19687 transitions. Word has length 141 [2023-12-02 19:42:15,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:42:15,193 INFO L495 AbstractCegarLoop]: Abstraction has 13523 states and 19687 transitions. [2023-12-02 19:42:15,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-12-02 19:42:15,194 INFO L276 IsEmpty]: Start isEmpty. Operand 13523 states and 19687 transitions. [2023-12-02 19:42:15,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-02 19:42:15,197 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:42:15,197 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 5, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:42:15,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-02 19:42:15,197 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:42:15,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:42:15,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1781423970, now seen corresponding path program 1 times [2023-12-02 19:42:15,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:42:15,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168460246] [2023-12-02 19:42:15,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:42:15,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:42:15,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:42:15,534 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-12-02 19:42:15,534 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:42:15,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168460246] [2023-12-02 19:42:15,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168460246] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:42:15,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:42:15,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 19:42:15,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975094099] [2023-12-02 19:42:15,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:42:15,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 19:42:15,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:42:15,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 19:42:15,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:42:15,536 INFO L87 Difference]: Start difference. First operand 13523 states and 19687 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-12-02 19:42:24,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:42:26,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:42:28,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:42:30,307 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 [] [2023-12-02 19:42:30,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:42:30,545 INFO L93 Difference]: Finished difference Result 13523 states and 19687 transitions. [2023-12-02 19:42:30,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 19:42:30,545 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 146 [2023-12-02 19:42:30,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:42:30,579 INFO L225 Difference]: With dead ends: 13523 [2023-12-02 19:42:30,579 INFO L226 Difference]: Without dead ends: 13521 [2023-12-02 19:42:30,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-02 19:42:30,584 INFO L413 NwaCegarLoop]: 4576 mSDtfsCounter, 43 mSDsluCounter, 13678 mSDsCounter, 0 mSdLazyCounter, 2082 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 18254 SdHoareTripleChecker+Invalid, 2086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2082 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2023-12-02 19:42:30,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 18254 Invalid, 2086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2082 Invalid, 3 Unknown, 0 Unchecked, 12.9s Time] [2023-12-02 19:42:30,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13521 states. [2023-12-02 19:42:32,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13521 to 13521. [2023-12-02 19:42:32,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13521 states, 7938 states have (on average 1.273116654069035) internal successors, (10106), 8101 states have internal predecessors, (10106), 4529 states have call successors, (4529), 1061 states have call predecessors, (4529), 1047 states have return successors, (5047), 4471 states have call predecessors, (5047), 4527 states have call successors, (5047) [2023-12-02 19:42:32,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13521 states to 13521 states and 19682 transitions. [2023-12-02 19:42:32,616 INFO L78 Accepts]: Start accepts. Automaton has 13521 states and 19682 transitions. Word has length 146 [2023-12-02 19:42:32,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:42:32,616 INFO L495 AbstractCegarLoop]: Abstraction has 13521 states and 19682 transitions. [2023-12-02 19:42:32,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-12-02 19:42:32,616 INFO L276 IsEmpty]: Start isEmpty. Operand 13521 states and 19682 transitions. [2023-12-02 19:42:32,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-02 19:42:32,621 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:42:32,621 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:42:32,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-12-02 19:42:32,622 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:42:32,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:42:32,622 INFO L85 PathProgramCache]: Analyzing trace with hash -773362128, now seen corresponding path program 1 times [2023-12-02 19:42:32,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:42:32,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892272367] [2023-12-02 19:42:32,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:42:32,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:42:32,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:42:32,857 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 19:42:32,858 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:42:32,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892272367] [2023-12-02 19:42:32,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892272367] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:42:32,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:42:32,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:42:32,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900462998] [2023-12-02 19:42:32,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:42:32,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:42:32,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:42:32,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:42:32,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:42:32,860 INFO L87 Difference]: Start difference. First operand 13521 states and 19682 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-12-02 19:42:39,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:42:41,883 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 [] [2023-12-02 19:42:42,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:42:42,132 INFO L93 Difference]: Finished difference Result 13521 states and 19682 transitions. [2023-12-02 19:42:42,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:42:42,133 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 146 [2023-12-02 19:42:42,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:42:42,171 INFO L225 Difference]: With dead ends: 13521 [2023-12-02 19:42:42,172 INFO L226 Difference]: Without dead ends: 13389 [2023-12-02 19:42:42,181 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 [2023-12-02 19:42:42,181 INFO L413 NwaCegarLoop]: 4576 mSDtfsCounter, 5056 mSDsluCounter, 4576 mSDsCounter, 0 mSdLazyCounter, 1033 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5056 SdHoareTripleChecker+Valid, 9152 SdHoareTripleChecker+Invalid, 1035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1033 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:42:42,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5056 Valid, 9152 Invalid, 1035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1033 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2023-12-02 19:42:42,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13389 states. [2023-12-02 19:42:44,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13389 to 13389. [2023-12-02 19:42:44,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13389 states, 7871 states have (on average 1.2745521534747808) internal successors, (10032), 8029 states have internal predecessors, (10032), 4485 states have call successors, (4485), 1041 states have call predecessors, (4485), 1027 states have return successors, (5003), 4431 states have call predecessors, (5003), 4483 states have call successors, (5003) [2023-12-02 19:42:44,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13389 states to 13389 states and 19520 transitions. [2023-12-02 19:42:44,325 INFO L78 Accepts]: Start accepts. Automaton has 13389 states and 19520 transitions. Word has length 146 [2023-12-02 19:42:44,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:42:44,325 INFO L495 AbstractCegarLoop]: Abstraction has 13389 states and 19520 transitions. [2023-12-02 19:42:44,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-12-02 19:42:44,325 INFO L276 IsEmpty]: Start isEmpty. Operand 13389 states and 19520 transitions. [2023-12-02 19:42:44,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-12-02 19:42:44,330 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:42:44,330 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:42:44,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-12-02 19:42:44,330 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:42:44,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:42:44,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1954777935, now seen corresponding path program 1 times [2023-12-02 19:42:44,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:42:44,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533288633] [2023-12-02 19:42:44,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:42:44,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:42:44,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:42:45,080 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2023-12-02 19:42:45,080 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:42:45,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533288633] [2023-12-02 19:42:45,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533288633] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:42:45,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:42:45,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 19:42:45,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060081272] [2023-12-02 19:42:45,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:42:45,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 19:42:45,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:42:45,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 19:42:45,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:42:45,082 INFO L87 Difference]: Start difference. First operand 13389 states and 19520 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-12-02 19:42:53,962 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 [] [2023-12-02 19:42:55,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:42:57,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:42:58,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:42:58,085 INFO L93 Difference]: Finished difference Result 14647 states and 21085 transitions. [2023-12-02 19:42:58,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 19:42:58,086 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 194 [2023-12-02 19:42:58,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:42:58,126 INFO L225 Difference]: With dead ends: 14647 [2023-12-02 19:42:58,126 INFO L226 Difference]: Without dead ends: 14645 [2023-12-02 19:42:58,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 19:42:58,133 INFO L413 NwaCegarLoop]: 4634 mSDtfsCounter, 4862 mSDsluCounter, 9982 mSDsCounter, 0 mSdLazyCounter, 1673 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4867 SdHoareTripleChecker+Valid, 14616 SdHoareTripleChecker+Invalid, 1679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1673 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2023-12-02 19:42:58,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4867 Valid, 14616 Invalid, 1679 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1673 Invalid, 3 Unknown, 0 Unchecked, 10.5s Time] [2023-12-02 19:42:58,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14645 states. [2023-12-02 19:43:00,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14645 to 14641. [2023-12-02 19:43:00,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14641 states, 8587 states have (on average 1.2677302899732152) internal successors, (10886), 8751 states have internal predecessors, (10886), 4833 states have call successors, (4833), 1233 states have call predecessors, (4833), 1215 states have return successors, (5359), 4773 states have call predecessors, (5359), 4831 states have call successors, (5359) [2023-12-02 19:43:00,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14641 states to 14641 states and 21078 transitions. [2023-12-02 19:43:00,880 INFO L78 Accepts]: Start accepts. Automaton has 14641 states and 21078 transitions. Word has length 194 [2023-12-02 19:43:00,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:43:00,880 INFO L495 AbstractCegarLoop]: Abstraction has 14641 states and 21078 transitions. [2023-12-02 19:43:00,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-12-02 19:43:00,881 INFO L276 IsEmpty]: Start isEmpty. Operand 14641 states and 21078 transitions. [2023-12-02 19:43:00,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2023-12-02 19:43:00,886 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:43:00,886 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:43:00,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-12-02 19:43:00,886 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:43:00,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:43:00,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1795350900, now seen corresponding path program 1 times [2023-12-02 19:43:00,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:43:00,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932814927] [2023-12-02 19:43:00,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:43:00,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:43:00,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:43:01,189 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2023-12-02 19:43:01,190 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:43:01,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932814927] [2023-12-02 19:43:01,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932814927] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:43:01,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:43:01,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 19:43:01,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045342413] [2023-12-02 19:43:01,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:43:01,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 19:43:01,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:43:01,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 19:43:01,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 19:43:01,192 INFO L87 Difference]: Start difference. First operand 14641 states and 21078 transitions. Second operand has 6 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2023-12-02 19:43:12,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:43:14,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:43:16,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:43:18,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:43:20,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:43:21,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:43:21,125 INFO L93 Difference]: Finished difference Result 28721 states and 41405 transitions. [2023-12-02 19:43:21,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 19:43:21,125 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) Word has length 212 [2023-12-02 19:43:21,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:43:21,166 INFO L225 Difference]: With dead ends: 28721 [2023-12-02 19:43:21,166 INFO L226 Difference]: Without dead ends: 14665 [2023-12-02 19:43:21,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-02 19:43:21,205 INFO L413 NwaCegarLoop]: 4560 mSDtfsCounter, 3 mSDsluCounter, 18227 mSDsCounter, 0 mSdLazyCounter, 2583 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 22787 SdHoareTripleChecker+Invalid, 2588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2583 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.3s IncrementalHoareTripleChecker+Time [2023-12-02 19:43:21,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 22787 Invalid, 2588 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2583 Invalid, 5 Unknown, 0 Unchecked, 17.3s Time] [2023-12-02 19:43:21,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14665 states. [2023-12-02 19:43:23,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14665 to 14665. [2023-12-02 19:43:23,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14665 states, 8603 states have (on average 1.2672323608043705) internal successors, (10902), 8771 states have internal predecessors, (10902), 4833 states have call successors, (4833), 1233 states have call predecessors, (4833), 1223 states have return successors, (5395), 4777 states have call predecessors, (5395), 4831 states have call successors, (5395) [2023-12-02 19:43:23,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14665 states to 14665 states and 21130 transitions. [2023-12-02 19:43:23,820 INFO L78 Accepts]: Start accepts. Automaton has 14665 states and 21130 transitions. Word has length 212 [2023-12-02 19:43:23,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:43:23,821 INFO L495 AbstractCegarLoop]: Abstraction has 14665 states and 21130 transitions. [2023-12-02 19:43:23,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2023-12-02 19:43:23,821 INFO L276 IsEmpty]: Start isEmpty. Operand 14665 states and 21130 transitions. [2023-12-02 19:43:23,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-12-02 19:43:23,830 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:43:23,830 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:43:23,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-12-02 19:43:23,830 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:43:23,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:43:23,831 INFO L85 PathProgramCache]: Analyzing trace with hash -632997950, now seen corresponding path program 1 times [2023-12-02 19:43:23,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:43:23,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738348303] [2023-12-02 19:43:23,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:43:23,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:43:23,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:43:24,183 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2023-12-02 19:43:24,183 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:43:24,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738348303] [2023-12-02 19:43:24,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738348303] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:43:24,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:43:24,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 19:43:24,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709646522] [2023-12-02 19:43:24,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:43:24,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 19:43:24,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:43:24,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 19:43:24,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 19:43:24,185 INFO L87 Difference]: Start difference. First operand 14665 states and 21130 transitions. Second operand has 6 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2023-12-02 19:43:34,994 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 [] [2023-12-02 19:43:37,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:43:39,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:43:41,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:43:43,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:43:43,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:43:43,165 INFO L93 Difference]: Finished difference Result 28761 states and 41477 transitions. [2023-12-02 19:43:43,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 19:43:43,166 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) Word has length 217 [2023-12-02 19:43:43,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:43:43,207 INFO L225 Difference]: With dead ends: 28761 [2023-12-02 19:43:43,207 INFO L226 Difference]: Without dead ends: 14681 [2023-12-02 19:43:43,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-02 19:43:43,242 INFO L413 NwaCegarLoop]: 4560 mSDtfsCounter, 3 mSDsluCounter, 18225 mSDsCounter, 0 mSdLazyCounter, 2585 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 22785 SdHoareTripleChecker+Invalid, 2590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2585 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2023-12-02 19:43:43,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 22785 Invalid, 2590 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2585 Invalid, 5 Unknown, 0 Unchecked, 16.3s Time] [2023-12-02 19:43:43,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14681 states. [2023-12-02 19:43:45,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14681 to 14681. [2023-12-02 19:43:45,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14681 states, 8615 states have (on average 1.2668601276842717) internal successors, (10914), 8783 states have internal predecessors, (10914), 4833 states have call successors, (4833), 1233 states have call predecessors, (4833), 1227 states have return successors, (5403), 4781 states have call predecessors, (5403), 4831 states have call successors, (5403) [2023-12-02 19:43:45,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14681 states to 14681 states and 21150 transitions. [2023-12-02 19:43:45,593 INFO L78 Accepts]: Start accepts. Automaton has 14681 states and 21150 transitions. Word has length 217 [2023-12-02 19:43:45,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:43:45,593 INFO L495 AbstractCegarLoop]: Abstraction has 14681 states and 21150 transitions. [2023-12-02 19:43:45,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2023-12-02 19:43:45,594 INFO L276 IsEmpty]: Start isEmpty. Operand 14681 states and 21150 transitions. [2023-12-02 19:43:45,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2023-12-02 19:43:45,600 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:43:45,600 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:43:45,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-12-02 19:43:45,600 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:43:45,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:43:45,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1693789827, now seen corresponding path program 1 times [2023-12-02 19:43:45,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:43:45,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352330236] [2023-12-02 19:43:45,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:43:45,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:43:45,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:43:46,209 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2023-12-02 19:43:46,209 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:43:46,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352330236] [2023-12-02 19:43:46,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352330236] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:43:46,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:43:46,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:43:46,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945243452] [2023-12-02 19:43:46,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:43:46,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:43:46,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:43:46,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:43:46,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:43:46,211 INFO L87 Difference]: Start difference. First operand 14681 states and 21150 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 4 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) [2023-12-02 19:43:56,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:43:58,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:43:58,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:43:58,848 INFO L93 Difference]: Finished difference Result 29637 states and 42945 transitions. [2023-12-02 19:43:58,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 19:43:58,849 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), 4 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) Word has length 206 [2023-12-02 19:43:58,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:43:58,888 INFO L225 Difference]: With dead ends: 29637 [2023-12-02 19:43:58,889 INFO L226 Difference]: Without dead ends: 15541 [2023-12-02 19:43:58,920 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 [2023-12-02 19:43:58,921 INFO L413 NwaCegarLoop]: 4650 mSDtfsCounter, 404 mSDsluCounter, 8902 mSDsCounter, 0 mSdLazyCounter, 1714 mSolverCounterSat, 134 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 13552 SdHoareTripleChecker+Invalid, 1850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 1714 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2023-12-02 19:43:58,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 13552 Invalid, 1850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 1714 Invalid, 2 Unknown, 0 Unchecked, 9.9s Time] [2023-12-02 19:43:58,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15541 states. [2023-12-02 19:44:01,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15541 to 15537. [2023-12-02 19:44:01,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15537 states, 9231 states have (on average 1.2668183295417614) internal successors, (11694), 9403 states have internal predecessors, (11694), 5069 states have call successors, (5069), 1233 states have call predecessors, (5069), 1231 states have return successors, (5651), 5017 states have call predecessors, (5651), 5067 states have call successors, (5651) [2023-12-02 19:44:01,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15537 states to 15537 states and 22414 transitions. [2023-12-02 19:44:01,419 INFO L78 Accepts]: Start accepts. Automaton has 15537 states and 22414 transitions. Word has length 206 [2023-12-02 19:44:01,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:44:01,419 INFO L495 AbstractCegarLoop]: Abstraction has 15537 states and 22414 transitions. [2023-12-02 19:44:01,419 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), 4 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) [2023-12-02 19:44:01,419 INFO L276 IsEmpty]: Start isEmpty. Operand 15537 states and 22414 transitions. [2023-12-02 19:44:01,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2023-12-02 19:44:01,425 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:44:01,426 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:44:01,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-12-02 19:44:01,426 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:44:01,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:44:01,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1371242901, now seen corresponding path program 1 times [2023-12-02 19:44:01,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:44:01,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610226496] [2023-12-02 19:44:01,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:44:01,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:44:01,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:44:02,076 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2023-12-02 19:44:02,076 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:44:02,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610226496] [2023-12-02 19:44:02,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610226496] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:44:02,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:44:02,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 19:44:02,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391590264] [2023-12-02 19:44:02,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:44:02,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 19:44:02,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:44:02,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 19:44:02,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:44:02,078 INFO L87 Difference]: Start difference. First operand 15537 states and 22414 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (37), 3 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) [2023-12-02 19:44:14,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:44:16,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:44:18,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:44:20,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:44:20,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:44:20,777 INFO L93 Difference]: Finished difference Result 15551 states and 22425 transitions. [2023-12-02 19:44:20,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 19:44:20,778 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (37), 3 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) Word has length 206 [2023-12-02 19:44:20,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:44:20,816 INFO L225 Difference]: With dead ends: 15551 [2023-12-02 19:44:20,816 INFO L226 Difference]: Without dead ends: 15549 [2023-12-02 19:44:20,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-02 19:44:20,822 INFO L413 NwaCegarLoop]: 5077 mSDtfsCounter, 833 mSDsluCounter, 14568 mSDsCounter, 0 mSdLazyCounter, 2349 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 834 SdHoareTripleChecker+Valid, 19645 SdHoareTripleChecker+Invalid, 2353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2349 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:44:20,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [834 Valid, 19645 Invalid, 2353 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2349 Invalid, 4 Unknown, 0 Unchecked, 16.1s Time] [2023-12-02 19:44:20,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15549 states. [2023-12-02 19:44:23,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15549 to 15545. [2023-12-02 19:44:23,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15545 states, 9237 states have (on average 1.266428494099816) internal successors, (11698), 9409 states have internal predecessors, (11698), 5069 states have call successors, (5069), 1235 states have call predecessors, (5069), 1233 states have return successors, (5651), 5017 states have call predecessors, (5651), 5067 states have call successors, (5651) [2023-12-02 19:44:23,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15545 states to 15545 states and 22418 transitions. [2023-12-02 19:44:23,304 INFO L78 Accepts]: Start accepts. Automaton has 15545 states and 22418 transitions. Word has length 206 [2023-12-02 19:44:23,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:44:23,304 INFO L495 AbstractCegarLoop]: Abstraction has 15545 states and 22418 transitions. [2023-12-02 19:44:23,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (37), 3 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) [2023-12-02 19:44:23,304 INFO L276 IsEmpty]: Start isEmpty. Operand 15545 states and 22418 transitions. [2023-12-02 19:44:23,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2023-12-02 19:44:23,312 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:44:23,312 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:44:23,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-12-02 19:44:23,312 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:44:23,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:44:23,313 INFO L85 PathProgramCache]: Analyzing trace with hash 951391968, now seen corresponding path program 1 times [2023-12-02 19:44:23,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:44:23,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068018377] [2023-12-02 19:44:23,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:44:23,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:44:23,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:44:24,024 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2023-12-02 19:44:24,025 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:44:24,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068018377] [2023-12-02 19:44:24,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068018377] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:44:24,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:44:24,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 19:44:24,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827249962] [2023-12-02 19:44:24,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:44:24,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 19:44:24,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:44:24,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 19:44:24,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:44:24,027 INFO L87 Difference]: Start difference. First operand 15545 states and 22418 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-12-02 19:44:33,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:44:35,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:44:37,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:44:37,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:44:37,610 INFO L93 Difference]: Finished difference Result 15697 states and 22552 transitions. [2023-12-02 19:44:37,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 19:44:37,611 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 231 [2023-12-02 19:44:37,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:44:37,649 INFO L225 Difference]: With dead ends: 15697 [2023-12-02 19:44:37,650 INFO L226 Difference]: Without dead ends: 15695 [2023-12-02 19:44:37,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 19:44:37,655 INFO L413 NwaCegarLoop]: 4567 mSDtfsCounter, 4714 mSDsluCounter, 9368 mSDsCounter, 0 mSdLazyCounter, 1607 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4719 SdHoareTripleChecker+Valid, 13935 SdHoareTripleChecker+Invalid, 1611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1607 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2023-12-02 19:44:37,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4719 Valid, 13935 Invalid, 1611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1607 Invalid, 2 Unknown, 0 Unchecked, 10.8s Time] [2023-12-02 19:44:37,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15695 states. [2023-12-02 19:44:40,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15695 to 15693. [2023-12-02 19:44:40,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15693 states, 9329 states have (on average 1.2661592882409691) internal successors, (11812), 9507 states have internal predecessors, (11812), 5075 states have call successors, (5075), 1285 states have call predecessors, (5075), 1283 states have return successors, (5657), 5023 states have call predecessors, (5657), 5073 states have call successors, (5657) [2023-12-02 19:44:40,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15693 states to 15693 states and 22544 transitions. [2023-12-02 19:44:40,259 INFO L78 Accepts]: Start accepts. Automaton has 15693 states and 22544 transitions. Word has length 231 [2023-12-02 19:44:40,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:44:40,260 INFO L495 AbstractCegarLoop]: Abstraction has 15693 states and 22544 transitions. [2023-12-02 19:44:40,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-12-02 19:44:40,260 INFO L276 IsEmpty]: Start isEmpty. Operand 15693 states and 22544 transitions. [2023-12-02 19:44:40,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2023-12-02 19:44:40,268 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:44:40,268 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:44:40,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-12-02 19:44:40,269 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:44:40,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:44:40,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1310498377, now seen corresponding path program 1 times [2023-12-02 19:44:40,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:44:40,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332594006] [2023-12-02 19:44:40,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:44:40,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:44:40,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:44:40,462 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2023-12-02 19:44:40,462 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:44:40,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332594006] [2023-12-02 19:44:40,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332594006] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:44:40,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:44:40,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:44:40,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208819752] [2023-12-02 19:44:40,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:44:40,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:44:40,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:44:40,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:44:40,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:44:40,464 INFO L87 Difference]: Start difference. First operand 15693 states and 22544 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2023-12-02 19:44:49,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:44:51,011 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 [] [2023-12-02 19:44:51,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:44:51,143 INFO L93 Difference]: Finished difference Result 30889 states and 44450 transitions. [2023-12-02 19:44:51,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:44:51,144 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 227 [2023-12-02 19:44:51,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:44:51,188 INFO L225 Difference]: With dead ends: 30889 [2023-12-02 19:44:51,188 INFO L226 Difference]: Without dead ends: 15781 [2023-12-02 19:44:51,222 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 [2023-12-02 19:44:51,222 INFO L413 NwaCegarLoop]: 4592 mSDtfsCounter, 22 mSDsluCounter, 4505 mSDsCounter, 0 mSdLazyCounter, 1088 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 9097 SdHoareTripleChecker+Invalid, 1091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1088 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2023-12-02 19:44:51,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 9097 Invalid, 1091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1088 Invalid, 2 Unknown, 0 Unchecked, 7.9s Time] [2023-12-02 19:44:51,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15781 states. [2023-12-02 19:44:54,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15781 to 15697. [2023-12-02 19:44:54,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15697 states, 9333 states have (on average 1.266045215900568) internal successors, (11816), 9511 states have internal predecessors, (11816), 5075 states have call successors, (5075), 1285 states have call predecessors, (5075), 1283 states have return successors, (5657), 5023 states have call predecessors, (5657), 5073 states have call successors, (5657) [2023-12-02 19:44:54,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15697 states to 15697 states and 22548 transitions. [2023-12-02 19:44:54,091 INFO L78 Accepts]: Start accepts. Automaton has 15697 states and 22548 transitions. Word has length 227 [2023-12-02 19:44:54,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:44:54,091 INFO L495 AbstractCegarLoop]: Abstraction has 15697 states and 22548 transitions. [2023-12-02 19:44:54,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2023-12-02 19:44:54,091 INFO L276 IsEmpty]: Start isEmpty. Operand 15697 states and 22548 transitions. [2023-12-02 19:44:54,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2023-12-02 19:44:54,099 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:44:54,100 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:44:54,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-12-02 19:44:54,100 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:44:54,100 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:44:54,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1363037664, now seen corresponding path program 1 times [2023-12-02 19:44:54,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:44:54,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632724965] [2023-12-02 19:44:54,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:44:54,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:44:54,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:44:54,371 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2023-12-02 19:44:54,371 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:44:54,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632724965] [2023-12-02 19:44:54,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632724965] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:44:54,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:44:54,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 19:44:54,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719156228] [2023-12-02 19:44:54,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:44:54,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 19:44:54,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:44:54,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 19:44:54,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 19:44:54,373 INFO L87 Difference]: Start difference. First operand 15697 states and 22548 transitions. Second operand has 6 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (39), 4 states have call predecessors, (39), 3 states have call successors, (39) [2023-12-02 19:45:05,402 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 [] [2023-12-02 19:45:07,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:45:09,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:45:11,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:45:13,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:45:13,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:45:13,599 INFO L93 Difference]: Finished difference Result 30849 states and 44405 transitions. [2023-12-02 19:45:13,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 19:45:13,600 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (39), 4 states have call predecessors, (39), 3 states have call successors, (39) Word has length 250 [2023-12-02 19:45:13,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:45:13,641 INFO L225 Difference]: With dead ends: 30849 [2023-12-02 19:45:13,641 INFO L226 Difference]: Without dead ends: 15737 [2023-12-02 19:45:13,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-02 19:45:13,676 INFO L413 NwaCegarLoop]: 4560 mSDtfsCounter, 23 mSDsluCounter, 18188 mSDsCounter, 0 mSdLazyCounter, 2580 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 22748 SdHoareTripleChecker+Invalid, 2586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2580 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2023-12-02 19:45:13,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 22748 Invalid, 2586 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2580 Invalid, 5 Unknown, 0 Unchecked, 16.2s Time] [2023-12-02 19:45:13,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15737 states. [2023-12-02 19:45:16,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15737 to 15729. [2023-12-02 19:45:16,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15729 states, 9353 states have (on average 1.2654763177590078) internal successors, (11836), 9531 states have internal predecessors, (11836), 5083 states have call successors, (5083), 1285 states have call predecessors, (5083), 1287 states have return successors, (5721), 5035 states have call predecessors, (5721), 5081 states have call successors, (5721) [2023-12-02 19:45:16,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15729 states to 15729 states and 22640 transitions. [2023-12-02 19:45:16,255 INFO L78 Accepts]: Start accepts. Automaton has 15729 states and 22640 transitions. Word has length 250 [2023-12-02 19:45:16,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:45:16,255 INFO L495 AbstractCegarLoop]: Abstraction has 15729 states and 22640 transitions. [2023-12-02 19:45:16,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (39), 4 states have call predecessors, (39), 3 states have call successors, (39) [2023-12-02 19:45:16,256 INFO L276 IsEmpty]: Start isEmpty. Operand 15729 states and 22640 transitions. [2023-12-02 19:45:16,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2023-12-02 19:45:16,265 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:45:16,265 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:45:16,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-12-02 19:45:16,265 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:45:16,266 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:45:16,266 INFO L85 PathProgramCache]: Analyzing trace with hash -132862753, now seen corresponding path program 1 times [2023-12-02 19:45:16,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:45:16,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259492274] [2023-12-02 19:45:16,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:45:16,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:45:16,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:45:16,906 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2023-12-02 19:45:16,906 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:45:16,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259492274] [2023-12-02 19:45:16,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259492274] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:45:16,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:45:16,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 19:45:16,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651837683] [2023-12-02 19:45:16,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:45:16,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 19:45:16,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:45:16,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 19:45:16,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 19:45:16,908 INFO L87 Difference]: Start difference. First operand 15729 states and 22640 transitions. Second operand has 6 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (38), 3 states have call predecessors, (38), 2 states have call successors, (38) [2023-12-02 19:45:31,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:45:33,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:45:35,138 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 [] [2023-12-02 19:45:35,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:45:35,357 INFO L93 Difference]: Finished difference Result 30863 states and 44588 transitions. [2023-12-02 19:45:35,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 19:45:35,357 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (38), 3 states have call predecessors, (38), 2 states have call successors, (38) Word has length 228 [2023-12-02 19:45:35,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:45:35,398 INFO L225 Difference]: With dead ends: 30863 [2023-12-02 19:45:35,398 INFO L226 Difference]: Without dead ends: 15719 [2023-12-02 19:45:35,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-02 19:45:35,432 INFO L413 NwaCegarLoop]: 4552 mSDtfsCounter, 4981 mSDsluCounter, 11153 mSDsCounter, 0 mSdLazyCounter, 4560 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4983 SdHoareTripleChecker+Valid, 15705 SdHoareTripleChecker+Invalid, 4563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4560 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2023-12-02 19:45:35,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4983 Valid, 15705 Invalid, 4563 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 4560 Invalid, 3 Unknown, 0 Unchecked, 15.2s Time] [2023-12-02 19:45:35,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15719 states. [2023-12-02 19:45:38,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15719 to 15719. [2023-12-02 19:45:38,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15719 states, 9344 states have (on average 1.2648758561643836) internal successors, (11819), 9521 states have internal predecessors, (11819), 5083 states have call successors, (5083), 1285 states have call predecessors, (5083), 1287 states have return successors, (5721), 5035 states have call predecessors, (5721), 5081 states have call successors, (5721) [2023-12-02 19:45:38,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15719 states to 15719 states and 22623 transitions. [2023-12-02 19:45:38,367 INFO L78 Accepts]: Start accepts. Automaton has 15719 states and 22623 transitions. Word has length 228 [2023-12-02 19:45:38,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:45:38,368 INFO L495 AbstractCegarLoop]: Abstraction has 15719 states and 22623 transitions. [2023-12-02 19:45:38,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (38), 3 states have call predecessors, (38), 2 states have call successors, (38) [2023-12-02 19:45:38,368 INFO L276 IsEmpty]: Start isEmpty. Operand 15719 states and 22623 transitions. [2023-12-02 19:45:38,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2023-12-02 19:45:38,374 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:45:38,374 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 6, 6, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:45:38,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-12-02 19:45:38,374 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:45:38,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:45:38,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1150364100, now seen corresponding path program 1 times [2023-12-02 19:45:38,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:45:38,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095377932] [2023-12-02 19:45:38,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:45:38,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:45:38,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:45:39,057 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2023-12-02 19:45:39,057 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:45:39,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095377932] [2023-12-02 19:45:39,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095377932] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:45:39,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:45:39,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-02 19:45:39,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75021723] [2023-12-02 19:45:39,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:45:39,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-02 19:45:39,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:45:39,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-02 19:45:39,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-02 19:45:39,059 INFO L87 Difference]: Start difference. First operand 15719 states and 22623 transitions. Second operand has 10 states, 8 states have (on average 12.875) internal successors, (103), 7 states have internal predecessors, (103), 3 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (44), 5 states have call predecessors, (44), 2 states have call successors, (44) [2023-12-02 19:45:56,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:45:58,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:46:00,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:46:02,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:46:05,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:46:07,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:46:09,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:46:11,172 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 [] [2023-12-02 19:46:11,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:46:11,320 INFO L93 Difference]: Finished difference Result 31481 states and 45410 transitions. [2023-12-02 19:46:11,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-02 19:46:11,321 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 12.875) internal successors, (103), 7 states have internal predecessors, (103), 3 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (44), 5 states have call predecessors, (44), 2 states have call successors, (44) Word has length 265 [2023-12-02 19:46:11,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:46:11,372 INFO L225 Difference]: With dead ends: 31481 [2023-12-02 19:46:11,372 INFO L226 Difference]: Without dead ends: 15781 [2023-12-02 19:46:11,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-02 19:46:11,406 INFO L413 NwaCegarLoop]: 4562 mSDtfsCounter, 3 mSDsluCounter, 36484 mSDsCounter, 0 mSdLazyCounter, 4654 mSolverCounterSat, 2 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 41046 SdHoareTripleChecker+Invalid, 4663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4654 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.2s IncrementalHoareTripleChecker+Time [2023-12-02 19:46:11,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 41046 Invalid, 4663 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 4654 Invalid, 7 Unknown, 0 Unchecked, 29.2s Time] [2023-12-02 19:46:11,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15781 states. [2023-12-02 19:46:13,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15781 to 15745. [2023-12-02 19:46:13,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15745 states, 9362 states have (on average 1.2643665883358257) internal successors, (11837), 9537 states have internal predecessors, (11837), 5085 states have call successors, (5085), 1285 states have call predecessors, (5085), 1293 states have return successors, (5777), 5045 states have call predecessors, (5777), 5083 states have call successors, (5777) [2023-12-02 19:46:14,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15745 states to 15745 states and 22699 transitions. [2023-12-02 19:46:14,036 INFO L78 Accepts]: Start accepts. Automaton has 15745 states and 22699 transitions. Word has length 265 [2023-12-02 19:46:14,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:46:14,037 INFO L495 AbstractCegarLoop]: Abstraction has 15745 states and 22699 transitions. [2023-12-02 19:46:14,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 12.875) internal successors, (103), 7 states have internal predecessors, (103), 3 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (44), 5 states have call predecessors, (44), 2 states have call successors, (44) [2023-12-02 19:46:14,037 INFO L276 IsEmpty]: Start isEmpty. Operand 15745 states and 22699 transitions. [2023-12-02 19:46:14,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-12-02 19:46:14,042 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:46:14,043 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:46:14,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-12-02 19:46:14,043 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ldv_check_alloc_nonatomicErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:46:14,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:46:14,043 INFO L85 PathProgramCache]: Analyzing trace with hash 542106535, now seen corresponding path program 1 times [2023-12-02 19:46:14,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:46:14,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222980302] [2023-12-02 19:46:14,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:46:14,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:46:14,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:46:14,558 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2023-12-02 19:46:14,558 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:46:14,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222980302] [2023-12-02 19:46:14,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222980302] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:46:14,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:46:14,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:46:14,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865886787] [2023-12-02 19:46:14,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:46:14,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:46:14,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:46:14,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:46:14,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:46:14,559 INFO L87 Difference]: Start difference. First operand 15745 states and 22699 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2023-12-02 19:46:22,385 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 [] [2023-12-02 19:46:24,391 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 [] [2023-12-02 19:46:24,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:46:24,507 INFO L93 Difference]: Finished difference Result 15745 states and 22699 transitions. [2023-12-02 19:46:24,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:46:24,508 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 217 [2023-12-02 19:46:24,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:46:24,546 INFO L225 Difference]: With dead ends: 15745 [2023-12-02 19:46:24,546 INFO L226 Difference]: Without dead ends: 15743 [2023-12-02 19:46:24,550 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 [2023-12-02 19:46:24,551 INFO L413 NwaCegarLoop]: 4549 mSDtfsCounter, 4988 mSDsluCounter, 4549 mSDsCounter, 0 mSdLazyCounter, 1030 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4988 SdHoareTripleChecker+Valid, 9098 SdHoareTripleChecker+Invalid, 1032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1030 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2023-12-02 19:46:24,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4988 Valid, 9098 Invalid, 1032 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1030 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2023-12-02 19:46:24,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15743 states. [2023-12-02 19:46:27,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15743 to 15743. [2023-12-02 19:46:27,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15743 states, 9361 states have (on average 1.26396752483709) internal successors, (11832), 9535 states have internal predecessors, (11832), 5085 states have call successors, (5085), 1285 states have call predecessors, (5085), 1293 states have return successors, (5777), 5045 states have call predecessors, (5777), 5083 states have call successors, (5777) [2023-12-02 19:46:27,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15743 states to 15743 states and 22694 transitions. [2023-12-02 19:46:27,085 INFO L78 Accepts]: Start accepts. Automaton has 15743 states and 22694 transitions. Word has length 217 [2023-12-02 19:46:27,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:46:27,085 INFO L495 AbstractCegarLoop]: Abstraction has 15743 states and 22694 transitions. [2023-12-02 19:46:27,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2023-12-02 19:46:27,085 INFO L276 IsEmpty]: Start isEmpty. Operand 15743 states and 22694 transitions. [2023-12-02 19:46:27,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2023-12-02 19:46:27,092 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:46:27,093 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:46:27,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-12-02 19:46:27,093 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:46:27,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:46:27,093 INFO L85 PathProgramCache]: Analyzing trace with hash -60046558, now seen corresponding path program 1 times [2023-12-02 19:46:27,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:46:27,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849923562] [2023-12-02 19:46:27,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:46:27,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:46:27,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:46:27,635 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2023-12-02 19:46:27,635 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:46:27,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849923562] [2023-12-02 19:46:27,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849923562] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:46:27,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:46:27,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 19:46:27,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293038760] [2023-12-02 19:46:27,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:46:27,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 19:46:27,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:46:27,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 19:46:27,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:46:27,637 INFO L87 Difference]: Start difference. First operand 15743 states and 22694 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (38), 2 states have call predecessors, (38), 1 states have call successors, (38) [2023-12-02 19:46:29,569 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 [] [2023-12-02 19:46:37,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:46:39,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:46:41,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:46:43,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:46:43,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:46:43,531 INFO L93 Difference]: Finished difference Result 15745 states and 22695 transitions. [2023-12-02 19:46:43,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 19:46:43,531 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (38), 2 states have call predecessors, (38), 1 states have call successors, (38) Word has length 243 [2023-12-02 19:46:43,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:46:43,570 INFO L225 Difference]: With dead ends: 15745 [2023-12-02 19:46:43,571 INFO L226 Difference]: Without dead ends: 15743 [2023-12-02 19:46:43,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-02 19:46:43,576 INFO L413 NwaCegarLoop]: 4557 mSDtfsCounter, 284 mSDsluCounter, 13421 mSDsCounter, 0 mSdLazyCounter, 2050 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 17978 SdHoareTripleChecker+Invalid, 2054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2050 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2023-12-02 19:46:43,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 17978 Invalid, 2054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2050 Invalid, 4 Unknown, 0 Unchecked, 13.2s Time] [2023-12-02 19:46:43,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15743 states. [2023-12-02 19:46:46,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15743 to 15743. [2023-12-02 19:46:46,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15743 states, 9361 states have (on average 1.2633265676743937) internal successors, (11826), 9535 states have internal predecessors, (11826), 5085 states have call successors, (5085), 1285 states have call predecessors, (5085), 1293 states have return successors, (5777), 5045 states have call predecessors, (5777), 5083 states have call successors, (5777) [2023-12-02 19:46:46,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15743 states to 15743 states and 22688 transitions. [2023-12-02 19:46:46,157 INFO L78 Accepts]: Start accepts. Automaton has 15743 states and 22688 transitions. Word has length 243 [2023-12-02 19:46:46,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:46:46,157 INFO L495 AbstractCegarLoop]: Abstraction has 15743 states and 22688 transitions. [2023-12-02 19:46:46,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (38), 2 states have call predecessors, (38), 1 states have call successors, (38) [2023-12-02 19:46:46,157 INFO L276 IsEmpty]: Start isEmpty. Operand 15743 states and 22688 transitions. [2023-12-02 19:46:46,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2023-12-02 19:46:46,164 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:46:46,165 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:46:46,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-12-02 19:46:46,165 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:46:46,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:46:46,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1693055249, now seen corresponding path program 1 times [2023-12-02 19:46:46,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:46:46,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476315623] [2023-12-02 19:46:46,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:46:46,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:46:46,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:46:46,500 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-12-02 19:46:46,501 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:46:46,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476315623] [2023-12-02 19:46:46,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476315623] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:46:46,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:46:46,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 19:46:46,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974930242] [2023-12-02 19:46:46,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:46:46,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 19:46:46,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:46:46,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 19:46:46,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 19:46:46,503 INFO L87 Difference]: Start difference. First operand 15743 states and 22688 transitions. Second operand has 6 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 3 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (39), 4 states have call predecessors, (39), 3 states have call successors, (39) [2023-12-02 19:46:57,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:46:59,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:47:01,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:47:03,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:47:05,557 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 [] [2023-12-02 19:47:05,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:47:05,701 INFO L93 Difference]: Finished difference Result 30909 states and 44619 transitions. [2023-12-02 19:47:05,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 19:47:05,702 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 3 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (39), 4 states have call predecessors, (39), 3 states have call successors, (39) Word has length 240 [2023-12-02 19:47:05,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:47:05,746 INFO L225 Difference]: With dead ends: 30909 [2023-12-02 19:47:05,746 INFO L226 Difference]: Without dead ends: 15751 [2023-12-02 19:47:05,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-02 19:47:05,779 INFO L413 NwaCegarLoop]: 4550 mSDtfsCounter, 1 mSDsluCounter, 18181 mSDsCounter, 0 mSdLazyCounter, 2590 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 22731 SdHoareTripleChecker+Invalid, 2595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2590 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2023-12-02 19:47:05,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 22731 Invalid, 2595 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2590 Invalid, 5 Unknown, 0 Unchecked, 16.2s Time] [2023-12-02 19:47:05,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15751 states. [2023-12-02 19:47:08,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15751 to 15751. [2023-12-02 19:47:08,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15751 states, 9369 states have (on average 1.2631017184331306) internal successors, (11834), 9539 states have internal predecessors, (11834), 5085 states have call successors, (5085), 1285 states have call predecessors, (5085), 1293 states have return successors, (5777), 5049 states have call predecessors, (5777), 5083 states have call successors, (5777) [2023-12-02 19:47:08,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15751 states to 15751 states and 22696 transitions. [2023-12-02 19:47:08,419 INFO L78 Accepts]: Start accepts. Automaton has 15751 states and 22696 transitions. Word has length 240 [2023-12-02 19:47:08,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:47:08,419 INFO L495 AbstractCegarLoop]: Abstraction has 15751 states and 22696 transitions. [2023-12-02 19:47:08,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 3 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (39), 4 states have call predecessors, (39), 3 states have call successors, (39) [2023-12-02 19:47:08,419 INFO L276 IsEmpty]: Start isEmpty. Operand 15751 states and 22696 transitions. [2023-12-02 19:47:08,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2023-12-02 19:47:08,427 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:47:08,427 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:47:08,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2023-12-02 19:47:08,428 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:47:08,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:47:08,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1930839497, now seen corresponding path program 1 times [2023-12-02 19:47:08,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:47:08,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767023495] [2023-12-02 19:47:08,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:47:08,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:47:08,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:47:09,106 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2023-12-02 19:47:09,106 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:47:09,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767023495] [2023-12-02 19:47:09,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767023495] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:47:09,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:47:09,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:47:09,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195907544] [2023-12-02 19:47:09,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:47:09,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:47:09,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:47:09,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:47:09,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:47:09,108 INFO L87 Difference]: Start difference. First operand 15751 states and 22696 transitions. Second operand has 4 states, 3 states have (on average 37.333333333333336) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2023-12-02 19:47:18,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:47:20,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:47:22,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:47:22,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:47:22,951 INFO L93 Difference]: Finished difference Result 30953 states and 44717 transitions. [2023-12-02 19:47:22,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 19:47:22,952 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 37.333333333333336) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 240 [2023-12-02 19:47:22,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:47:22,998 INFO L225 Difference]: With dead ends: 30953 [2023-12-02 19:47:22,998 INFO L226 Difference]: Without dead ends: 15787 [2023-12-02 19:47:23,034 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 [2023-12-02 19:47:23,034 INFO L413 NwaCegarLoop]: 4546 mSDtfsCounter, 5 mSDsluCounter, 9080 mSDsCounter, 0 mSdLazyCounter, 1573 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 13626 SdHoareTripleChecker+Invalid, 1581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1573 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2023-12-02 19:47:23,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 13626 Invalid, 1581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1573 Invalid, 2 Unknown, 0 Unchecked, 11.0s Time] [2023-12-02 19:47:23,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15787 states. [2023-12-02 19:47:25,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15787 to 15775. [2023-12-02 19:47:25,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15775 states, 9385 states have (on average 1.2639318060735216) internal successors, (11862), 9559 states have internal predecessors, (11862), 5085 states have call successors, (5085), 1289 states have call predecessors, (5085), 1301 states have return successors, (5797), 5049 states have call predecessors, (5797), 5083 states have call successors, (5797) [2023-12-02 19:47:25,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15775 states to 15775 states and 22744 transitions. [2023-12-02 19:47:25,693 INFO L78 Accepts]: Start accepts. Automaton has 15775 states and 22744 transitions. Word has length 240 [2023-12-02 19:47:25,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:47:25,694 INFO L495 AbstractCegarLoop]: Abstraction has 15775 states and 22744 transitions. [2023-12-02 19:47:25,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 37.333333333333336) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2023-12-02 19:47:25,694 INFO L276 IsEmpty]: Start isEmpty. Operand 15775 states and 22744 transitions. [2023-12-02 19:47:25,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2023-12-02 19:47:25,705 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:47:25,705 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:47:25,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2023-12-02 19:47:25,705 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 19:47:25,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:47:25,706 INFO L85 PathProgramCache]: Analyzing trace with hash 233503718, now seen corresponding path program 1 times [2023-12-02 19:47:25,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:47:25,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141114268] [2023-12-02 19:47:25,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:47:25,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:47:26,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:47:26,590 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2023-12-02 19:47:26,590 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:47:26,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141114268] [2023-12-02 19:47:26,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141114268] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:47:26,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1496191377] [2023-12-02 19:47:26,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:47:26,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:47:26,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:47:26,592 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:47:26,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd70dd4c-3e69-4017-b8d1-6f3b802ad575/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 19:47:27,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:47:27,960 INFO L262 TraceCheckSpWp]: Trace formula consists of 3500 conjuncts, 34 conjunts are in the unsatisfiable core [2023-12-02 19:47:27,977 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:47:28,138 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-12-02 19:47:28,138 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:47:28,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1496191377] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:47:28,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 19:47:28,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [5] total 15 [2023-12-02 19:47:28,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900124582] [2023-12-02 19:47:28,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:47:28,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 19:47:28,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:47:28,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 19:47:28,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2023-12-02 19:47:28,140 INFO L87 Difference]: Start difference. First operand 15775 states and 22744 transitions. Second operand has 12 states, 9 states have (on average 12.666666666666666) internal successors, (114), 11 states have internal predecessors, (114), 6 states have call successors, (42), 2 states have call predecessors, (42), 4 states have return successors, (38), 6 states have call predecessors, (38), 6 states have call successors, (38) [2023-12-02 19:47:46,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:47:48,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:47:50,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:47:52,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []