./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.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_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5574142529d95f295134c1dccd4c5dbe0383ae5c309e7dc50fd933e5702659ed --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 23:55:37,807 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 23:55:37,890 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-28 23:55:37,895 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 23:55:37,895 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 23:55:37,919 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 23:55:37,920 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 23:55:37,920 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 23:55:37,921 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 23:55:37,922 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 23:55:37,922 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 23:55:37,923 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 23:55:37,924 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 23:55:37,924 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 23:55:37,925 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 23:55:37,925 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 23:55:37,926 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 23:55:37,926 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 23:55:37,927 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 23:55:37,927 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 23:55:37,928 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 23:55:37,931 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 23:55:37,932 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 23:55:37,932 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 23:55:37,932 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 23:55:37,933 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 23:55:37,933 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-28 23:55:37,934 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 23:55:37,934 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 23:55:37,934 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 23:55:37,935 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 23:55:37,935 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-28 23:55:37,935 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-28 23:55:37,936 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-28 23:55:37,936 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 23:55:37,936 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 23:55:37,936 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-28 23:55:37,937 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 23:55:37,937 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 23:55:37,937 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5574142529d95f295134c1dccd4c5dbe0383ae5c309e7dc50fd933e5702659ed [2023-11-28 23:55:38,143 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 23:55:38,165 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 23:55:38,167 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 23:55:38,168 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 23:55:38,169 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 23:55:38,170 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i [2023-11-28 23:55:40,895 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 23:55:41,322 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 23:55:41,322 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i [2023-11-28 23:55:41,358 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/data/dbe9d47b9/dde51f4c61394982a92027608d278f0d/FLAGedc8d8ce3 [2023-11-28 23:55:41,369 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/data/dbe9d47b9/dde51f4c61394982a92027608d278f0d [2023-11-28 23:55:41,371 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 23:55:41,373 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 23:55:41,374 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 23:55:41,374 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 23:55:41,378 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 23:55:41,378 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:55:41" (1/1) ... [2023-11-28 23:55:41,379 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11694fb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:41, skipping insertion in model container [2023-11-28 23:55:41,379 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:55:41" (1/1) ... [2023-11-28 23:55:41,498 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 23:55:43,539 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[273031,273044] [2023-11-28 23:55:43,543 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[273176,273189] [2023-11-28 23:55:43,544 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[273322,273335] [2023-11-28 23:55:43,545 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[273487,273500] [2023-11-28 23:55:43,545 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[273645,273658] [2023-11-28 23:55:43,546 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[273803,273816] [2023-11-28 23:55:43,546 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[273961,273974] [2023-11-28 23:55:43,547 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[274121,274134] [2023-11-28 23:55:43,547 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[274280,274293] [2023-11-28 23:55:43,548 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[274419,274432] [2023-11-28 23:55:43,549 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[274561,274574] [2023-11-28 23:55:43,549 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[274710,274723] [2023-11-28 23:55:43,550 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[274849,274862] [2023-11-28 23:55:43,550 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[275004,275017] [2023-11-28 23:55:43,551 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[275164,275177] [2023-11-28 23:55:43,551 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[275315,275328] [2023-11-28 23:55:43,552 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[275466,275479] [2023-11-28 23:55:43,553 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[275618,275631] [2023-11-28 23:55:43,554 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[275767,275780] [2023-11-28 23:55:43,554 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[275915,275928] [2023-11-28 23:55:43,555 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[276072,276085] [2023-11-28 23:55:43,555 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[276221,276234] [2023-11-28 23:55:43,556 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[276377,276390] [2023-11-28 23:55:43,556 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[276530,276543] [2023-11-28 23:55:43,557 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[276676,276689] [2023-11-28 23:55:43,557 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[276819,276832] [2023-11-28 23:55:43,558 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[276971,276984] [2023-11-28 23:55:43,559 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[277117,277130] [2023-11-28 23:55:43,559 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[277262,277275] [2023-11-28 23:55:43,560 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[277416,277429] [2023-11-28 23:55:43,560 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[277567,277580] [2023-11-28 23:55:43,561 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[277722,277735] [2023-11-28 23:55:43,562 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[277874,277887] [2023-11-28 23:55:43,562 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[278029,278042] [2023-11-28 23:55:43,563 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[278193,278206] [2023-11-28 23:55:43,563 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[278349,278362] [2023-11-28 23:55:43,564 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[278513,278526] [2023-11-28 23:55:43,565 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[278655,278668] [2023-11-28 23:55:43,565 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[278813,278826] [2023-11-28 23:55:43,566 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[278980,278993] [2023-11-28 23:55:43,566 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[279139,279152] [2023-11-28 23:55:43,567 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[279298,279311] [2023-11-28 23:55:43,568 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[279447,279460] [2023-11-28 23:55:43,568 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[279594,279607] [2023-11-28 23:55:43,569 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[279733,279746] [2023-11-28 23:55:43,569 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[279896,279909] [2023-11-28 23:55:43,570 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[280062,280075] [2023-11-28 23:55:43,571 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[280226,280239] [2023-11-28 23:55:43,571 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[280391,280404] [2023-11-28 23:55:43,572 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[280556,280569] [2023-11-28 23:55:43,572 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[280722,280735] [2023-11-28 23:55:43,573 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[280887,280900] [2023-11-28 23:55:43,573 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[281054,281067] [2023-11-28 23:55:43,574 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[281214,281227] [2023-11-28 23:55:43,574 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[281376,281389] [2023-11-28 23:55:43,575 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[281535,281548] [2023-11-28 23:55:43,575 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[281681,281694] [2023-11-28 23:55:43,576 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[281824,281837] [2023-11-28 23:55:43,576 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[281968,281981] [2023-11-28 23:55:43,577 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[282111,282124] [2023-11-28 23:55:43,577 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[282255,282268] [2023-11-28 23:55:43,578 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[282396,282409] [2023-11-28 23:55:43,578 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[282534,282547] [2023-11-28 23:55:43,579 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[282692,282705] [2023-11-28 23:55:43,580 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[282851,282864] [2023-11-28 23:55:43,580 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[283007,283020] [2023-11-28 23:55:43,581 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[283156,283169] [2023-11-28 23:55:43,581 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[283308,283321] [2023-11-28 23:55:43,582 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[283459,283472] [2023-11-28 23:55:43,582 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[283608,283621] [2023-11-28 23:55:43,583 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[283760,283773] [2023-11-28 23:55:43,583 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[283908,283921] [2023-11-28 23:55:43,584 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[284061,284074] [2023-11-28 23:55:43,584 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[284212,284225] [2023-11-28 23:55:43,585 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[284362,284375] [2023-11-28 23:55:43,585 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[284509,284522] [2023-11-28 23:55:43,586 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[284660,284673] [2023-11-28 23:55:43,586 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[284811,284824] [2023-11-28 23:55:43,586 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[284959,284972] [2023-11-28 23:55:43,587 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[285125,285138] [2023-11-28 23:55:43,587 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[285294,285307] [2023-11-28 23:55:43,588 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[285461,285474] [2023-11-28 23:55:43,588 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[285629,285642] [2023-11-28 23:55:43,589 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[285779,285792] [2023-11-28 23:55:43,589 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[285926,285939] [2023-11-28 23:55:43,590 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[286087,286100] [2023-11-28 23:55:43,590 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[286257,286270] [2023-11-28 23:55:43,591 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[286419,286432] [2023-11-28 23:55:43,598 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:55:43,629 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 23:55:43,748 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [4644] [2023-11-28 23:55:43,756 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [4799] [2023-11-28 23:55:43,788 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [5192] [2023-11-28 23:55:43,877 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[273031,273044] [2023-11-28 23:55:43,878 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[273176,273189] [2023-11-28 23:55:43,878 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[273322,273335] [2023-11-28 23:55:43,878 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[273487,273500] [2023-11-28 23:55:43,879 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[273645,273658] [2023-11-28 23:55:43,879 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[273803,273816] [2023-11-28 23:55:43,880 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[273961,273974] [2023-11-28 23:55:43,880 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[274121,274134] [2023-11-28 23:55:43,880 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[274280,274293] [2023-11-28 23:55:43,881 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[274419,274432] [2023-11-28 23:55:43,881 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[274561,274574] [2023-11-28 23:55:43,882 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[274710,274723] [2023-11-28 23:55:43,882 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[274849,274862] [2023-11-28 23:55:43,883 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[275004,275017] [2023-11-28 23:55:43,883 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[275164,275177] [2023-11-28 23:55:43,884 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[275315,275328] [2023-11-28 23:55:43,884 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[275466,275479] [2023-11-28 23:55:43,885 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[275618,275631] [2023-11-28 23:55:43,885 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[275767,275780] [2023-11-28 23:55:43,885 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[275915,275928] [2023-11-28 23:55:43,886 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[276072,276085] [2023-11-28 23:55:43,886 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[276221,276234] [2023-11-28 23:55:43,887 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[276377,276390] [2023-11-28 23:55:43,887 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[276530,276543] [2023-11-28 23:55:43,888 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[276676,276689] [2023-11-28 23:55:43,888 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[276819,276832] [2023-11-28 23:55:43,888 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[276971,276984] [2023-11-28 23:55:43,889 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[277117,277130] [2023-11-28 23:55:43,889 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[277262,277275] [2023-11-28 23:55:43,890 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[277416,277429] [2023-11-28 23:55:43,890 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[277567,277580] [2023-11-28 23:55:43,890 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[277722,277735] [2023-11-28 23:55:43,891 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[277874,277887] [2023-11-28 23:55:43,891 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[278029,278042] [2023-11-28 23:55:43,891 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[278193,278206] [2023-11-28 23:55:43,892 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[278349,278362] [2023-11-28 23:55:43,892 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[278513,278526] [2023-11-28 23:55:43,893 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[278655,278668] [2023-11-28 23:55:43,893 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[278813,278826] [2023-11-28 23:55:43,893 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[278980,278993] [2023-11-28 23:55:43,894 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[279139,279152] [2023-11-28 23:55:43,894 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[279298,279311] [2023-11-28 23:55:43,895 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[279447,279460] [2023-11-28 23:55:43,895 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[279594,279607] [2023-11-28 23:55:43,895 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[279733,279746] [2023-11-28 23:55:43,896 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[279896,279909] [2023-11-28 23:55:43,896 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[280062,280075] [2023-11-28 23:55:43,896 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[280226,280239] [2023-11-28 23:55:43,897 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[280391,280404] [2023-11-28 23:55:43,897 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[280556,280569] [2023-11-28 23:55:43,897 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[280722,280735] [2023-11-28 23:55:43,898 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[280887,280900] [2023-11-28 23:55:43,898 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[281054,281067] [2023-11-28 23:55:43,898 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[281214,281227] [2023-11-28 23:55:43,899 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[281376,281389] [2023-11-28 23:55:43,899 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[281535,281548] [2023-11-28 23:55:43,899 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[281681,281694] [2023-11-28 23:55:43,900 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[281824,281837] [2023-11-28 23:55:43,900 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[281968,281981] [2023-11-28 23:55:43,900 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[282111,282124] [2023-11-28 23:55:43,901 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[282255,282268] [2023-11-28 23:55:43,901 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[282396,282409] [2023-11-28 23:55:43,902 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[282534,282547] [2023-11-28 23:55:43,902 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[282692,282705] [2023-11-28 23:55:43,902 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[282851,282864] [2023-11-28 23:55:43,903 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[283007,283020] [2023-11-28 23:55:43,903 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[283156,283169] [2023-11-28 23:55:43,904 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[283308,283321] [2023-11-28 23:55:43,904 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[283459,283472] [2023-11-28 23:55:43,904 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[283608,283621] [2023-11-28 23:55:43,905 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[283760,283773] [2023-11-28 23:55:43,905 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[283908,283921] [2023-11-28 23:55:43,906 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[284061,284074] [2023-11-28 23:55:43,906 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[284212,284225] [2023-11-28 23:55:43,906 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[284362,284375] [2023-11-28 23:55:43,907 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[284509,284522] [2023-11-28 23:55:43,907 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[284660,284673] [2023-11-28 23:55:43,908 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[284811,284824] [2023-11-28 23:55:43,908 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[284959,284972] [2023-11-28 23:55:43,909 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[285125,285138] [2023-11-28 23:55:43,909 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[285294,285307] [2023-11-28 23:55:43,909 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[285461,285474] [2023-11-28 23:55:43,910 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[285629,285642] [2023-11-28 23:55:43,910 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[285779,285792] [2023-11-28 23:55:43,911 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[285926,285939] [2023-11-28 23:55:43,911 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[286087,286100] [2023-11-28 23:55:43,912 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[286257,286270] [2023-11-28 23:55:43,912 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_a371528d-d492-479d-aecc-20a0a85e58d6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[286419,286432] [2023-11-28 23:55:43,915 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:55:44,080 INFO L206 MainTranslator]: Completed translation [2023-11-28 23:55:44,080 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:44 WrapperNode [2023-11-28 23:55:44,080 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 23:55:44,081 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 23:55:44,082 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 23:55:44,082 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 23:55:44,089 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:44" (1/1) ... [2023-11-28 23:55:44,147 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:44" (1/1) ... [2023-11-28 23:55:44,243 INFO L138 Inliner]: procedures = 526, calls = 1357, calls flagged for inlining = 224, calls inlined = 135, statements flattened = 2526 [2023-11-28 23:55:44,243 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 23:55:44,244 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 23:55:44,244 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 23:55:44,244 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 23:55:44,255 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:44" (1/1) ... [2023-11-28 23:55:44,255 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:44" (1/1) ... [2023-11-28 23:55:44,268 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:44" (1/1) ... [2023-11-28 23:55:44,682 INFO L175 MemorySlicer]: Split 338 memory accesses to 11 slices as follows [262, 28, 7, 1, 2, 5, 21, 2, 3, 4, 3]. 78 percent of accesses are in the largest equivalence class. The 107 initializations are split as follows [72, 0, 7, 1, 2, 0, 21, 0, 0, 4, 0]. The 100 writes are split as follows [71, 24, 0, 0, 0, 5, 0, 0, 0, 0, 0]. [2023-11-28 23:55:44,683 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:44" (1/1) ... [2023-11-28 23:55:44,683 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:44" (1/1) ... [2023-11-28 23:55:44,768 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:44" (1/1) ... [2023-11-28 23:55:44,781 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:44" (1/1) ... [2023-11-28 23:55:44,805 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:44" (1/1) ... [2023-11-28 23:55:44,818 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:44" (1/1) ... [2023-11-28 23:55:44,843 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 23:55:44,844 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 23:55:44,844 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 23:55:44,844 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 23:55:44,845 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:44" (1/1) ... [2023-11-28 23:55:44,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 23:55:44,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:55:44,877 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 23:55:44,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 23:55:44,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2023-11-28 23:55:44,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2023-11-28 23:55:44,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-28 23:55:44,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-28 23:55:44,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2023-11-28 23:55:44,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2023-11-28 23:55:44,913 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2023-11-28 23:55:44,913 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2023-11-28 23:55:44,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-28 23:55:44,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-28 23:55:44,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2023-11-28 23:55:44,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2023-11-28 23:55:44,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2023-11-28 23:55:44,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2023-11-28 23:55:44,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_read_buffer_lock_of_lego_usb_tower [2023-11-28 23:55:44,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_read_buffer_lock_of_lego_usb_tower [2023-11-28 23:55:44,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-28 23:55:44,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-28 23:55:44,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-28 23:55:44,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-28 23:55:44,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2023-11-28 23:55:44,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2023-11-28 23:55:44,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-28 23:55:44,915 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-28 23:55:44,915 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-28 23:55:44,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2023-11-28 23:55:44,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2023-11-28 23:55:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-28 23:55:44,916 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-28 23:55:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2023-11-28 23:55:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2023-11-28 23:55:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2023-11-28 23:55:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2023-11-28 23:55:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2023-11-28 23:55:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2023-11-28 23:55:44,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2023-11-28 23:55:44,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2023-11-28 23:55:44,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2023-11-28 23:55:44,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2023-11-28 23:55:44,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2023-11-28 23:55:44,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2023-11-28 23:55:44,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2023-11-28 23:55:44,917 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-28 23:55:44,918 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-28 23:55:44,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-28 23:55:44,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-28 23:55:44,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_112 [2023-11-28 23:55:44,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_112 [2023-11-28 23:55:44,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2023-11-28 23:55:44,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2023-11-28 23:55:44,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-28 23:55:44,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-28 23:55:44,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-28 23:55:44,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-28 23:55:44,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-28 23:55:44,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-28 23:55:44,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-28 23:55:44,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-28 23:55:44,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-28 23:55:44,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-28 23:55:44,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-28 23:55:44,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2023-11-28 23:55:44,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2023-11-28 23:55:44,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2023-11-28 23:55:44,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2023-11-28 23:55:44,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2023-11-28 23:55:44,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2023-11-28 23:55:44,921 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-28 23:55:44,921 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-28 23:55:44,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-28 23:55:44,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-28 23:55:44,921 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2023-11-28 23:55:44,921 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2023-11-28 23:55:44,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2023-11-28 23:55:44,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2023-11-28 23:55:44,922 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-28 23:55:44,922 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-28 23:55:44,922 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_open_disc_mutex [2023-11-28 23:55:44,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_open_disc_mutex [2023-11-28 23:55:44,922 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_lock_of_lego_usb_tower [2023-11-28 23:55:44,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_lock_of_lego_usb_tower [2023-11-28 23:55:44,922 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2023-11-28 23:55:44,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2023-11-28 23:55:44,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-28 23:55:44,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 23:55:44,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-28 23:55:44,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-28 23:55:44,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-28 23:55:44,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-28 23:55:44,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-28 23:55:44,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-28 23:55:44,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-28 23:55:44,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-28 23:55:44,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-28 23:55:44,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-28 23:55:44,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-28 23:55:44,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-11-28 23:55:44,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-11-28 23:55:44,924 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2023-11-28 23:55:44,925 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2023-11-28 23:55:44,925 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-28 23:55:44,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-28 23:55:44,925 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2023-11-28 23:55:44,925 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2023-11-28 23:55:44,925 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_irq_check_alloc_flags [2023-11-28 23:55:44,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_irq_check_alloc_flags [2023-11-28 23:55:44,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2023-11-28 23:55:44,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2023-11-28 23:55:44,926 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2023-11-28 23:55:44,926 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2023-11-28 23:55:44,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_open_disc_mutex [2023-11-28 23:55:44,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_open_disc_mutex [2023-11-28 23:55:44,927 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2023-11-28 23:55:44,927 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2023-11-28 23:55:44,927 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2023-11-28 23:55:44,927 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2023-11-28 23:55:44,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 23:55:44,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 23:55:44,928 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2023-11-28 23:55:44,928 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2023-11-28 23:55:44,928 INFO L130 BoogieDeclarations]: Found specification of procedure tower_disconnect [2023-11-28 23:55:44,928 INFO L138 BoogieDeclarations]: Found implementation of procedure tower_disconnect [2023-11-28 23:55:44,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-28 23:55:44,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-28 23:55:44,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-28 23:55:44,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-28 23:55:44,929 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2023-11-28 23:55:44,929 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2023-11-28 23:55:44,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2023-11-28 23:55:44,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2023-11-28 23:55:44,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_free_urb [2023-11-28 23:55:44,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_free_urb [2023-11-28 23:55:44,930 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2023-11-28 23:55:44,931 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2023-11-28 23:55:44,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2023-11-28 23:55:44,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2023-11-28 23:55:44,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_lock_of_lego_usb_tower [2023-11-28 23:55:44,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_lock_of_lego_usb_tower [2023-11-28 23:55:44,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-28 23:55:44,932 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-28 23:55:44,932 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-28 23:55:44,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2023-11-28 23:55:44,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2023-11-28 23:55:44,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-28 23:55:44,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-28 23:55:44,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-28 23:55:44,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-28 23:55:44,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-28 23:55:44,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-28 23:55:44,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-28 23:55:44,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-28 23:55:44,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-28 23:55:44,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-11-28 23:55:44,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-11-28 23:55:44,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-28 23:55:44,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-28 23:55:44,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-28 23:55:44,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-28 23:55:44,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-28 23:55:44,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-28 23:55:44,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-28 23:55:44,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-28 23:55:44,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-11-28 23:55:44,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2023-11-28 23:55:44,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2023-11-28 23:55:44,935 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-28 23:55:44,935 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-28 23:55:44,935 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-28 23:55:44,936 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-28 23:55:44,936 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-28 23:55:44,936 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-28 23:55:44,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2023-11-28 23:55:44,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2023-11-28 23:55:44,936 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-11-28 23:55:44,936 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-11-28 23:55:44,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-28 23:55:44,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-28 23:55:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_interruptible_or_killable_lock_of_lego_usb_tower [2023-11-28 23:55:44,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_interruptible_or_killable_lock_of_lego_usb_tower [2023-11-28 23:55:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2023-11-28 23:55:44,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2023-11-28 23:55:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_alloc_urb [2023-11-28 23:55:44,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_alloc_urb [2023-11-28 23:55:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2023-11-28 23:55:44,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2023-11-28 23:55:44,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2023-11-28 23:55:44,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2023-11-28 23:55:44,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2023-11-28 23:55:44,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2023-11-28 23:55:44,938 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-28 23:55:44,938 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-28 23:55:44,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2023-11-28 23:55:44,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2023-11-28 23:55:44,939 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2023-11-28 23:55:44,939 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2023-11-28 23:55:44,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_read_buffer_lock_of_lego_usb_tower [2023-11-28 23:55:44,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_read_buffer_lock_of_lego_usb_tower [2023-11-28 23:55:44,939 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-28 23:55:44,939 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-28 23:55:44,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2023-11-28 23:55:44,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2023-11-28 23:55:44,939 INFO L130 BoogieDeclarations]: Found specification of procedure tower_delete [2023-11-28 23:55:44,940 INFO L138 BoogieDeclarations]: Found implementation of procedure tower_delete [2023-11-28 23:55:44,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-28 23:55:44,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-28 23:55:44,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-28 23:55:44,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-28 23:55:44,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-28 23:55:44,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-28 23:55:44,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-28 23:55:44,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-28 23:55:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-28 23:55:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-28 23:55:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-28 23:55:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2023-11-28 23:55:44,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2023-11-28 23:55:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-28 23:55:44,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-28 23:55:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2023-11-28 23:55:44,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2023-11-28 23:55:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-11-28 23:55:44,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-11-28 23:55:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-28 23:55:44,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-28 23:55:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2023-11-28 23:55:44,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2023-11-28 23:55:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure tower_check_for_read_packet [2023-11-28 23:55:44,942 INFO L138 BoogieDeclarations]: Found implementation of procedure tower_check_for_read_packet [2023-11-28 23:55:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-28 23:55:44,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-28 23:55:44,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-28 23:55:44,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-28 23:55:44,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-28 23:55:44,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-28 23:55:44,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-28 23:55:44,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-28 23:55:44,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-28 23:55:44,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-28 23:55:44,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-28 23:55:44,944 INFO L130 BoogieDeclarations]: Found specification of procedure tower_abort_transfers [2023-11-28 23:55:44,944 INFO L138 BoogieDeclarations]: Found implementation of procedure tower_abort_transfers [2023-11-28 23:55:44,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_111 [2023-11-28 23:55:44,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_111 [2023-11-28 23:55:45,456 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 23:55:45,459 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 23:55:45,589 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-28 23:55:47,713 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 23:55:47,918 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 23:55:47,918 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-28 23:55:47,919 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:55:47 BoogieIcfgContainer [2023-11-28 23:55:47,919 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 23:55:47,922 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 23:55:47,922 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 23:55:47,925 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 23:55:47,926 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:55:41" (1/3) ... [2023-11-28 23:55:47,926 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f09518a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:55:47, skipping insertion in model container [2023-11-28 23:55:47,926 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:44" (2/3) ... [2023-11-28 23:55:47,927 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f09518a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:55:47, skipping insertion in model container [2023-11-28 23:55:47,927 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:55:47" (3/3) ... [2023-11-28 23:55:47,928 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i [2023-11-28 23:55:47,948 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 23:55:47,948 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2023-11-28 23:55:48,019 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 23:55:48,025 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=PETRI_NET, 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;@702959db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 23:55:48,025 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2023-11-28 23:55:48,034 INFO L276 IsEmpty]: Start isEmpty. Operand has 917 states, 543 states have (on average 1.3609576427255985) internal successors, (739), 588 states have internal predecessors, (739), 264 states have call successors, (264), 80 states have call predecessors, (264), 79 states have return successors, (259), 256 states have call predecessors, (259), 259 states have call successors, (259) [2023-11-28 23:55:48,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-28 23:55:48,045 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:55:48,046 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] [2023-11-28 23:55:48,046 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-28 23:55:48,051 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:55:48,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1298190654, now seen corresponding path program 1 times [2023-11-28 23:55:48,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:55:48,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480115202] [2023-11-28 23:55:48,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:55:48,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:55:48,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:48,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:55:48,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:48,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 23:55:48,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:48,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-28 23:55:48,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:48,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-28 23:55:48,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:48,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-28 23:55:48,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:48,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-28 23:55:48,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:48,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-28 23:55:48,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:48,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:55:48,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:48,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-28 23:55:49,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:49,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-28 23:55:49,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:49,018 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 23:55:49,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:55:49,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480115202] [2023-11-28 23:55:49,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480115202] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:55:49,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:55:49,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-28 23:55:49,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207183720] [2023-11-28 23:55:49,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:55:49,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:55:49,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:55:49,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:55:49,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:55:49,056 INFO L87 Difference]: Start difference. First operand has 917 states, 543 states have (on average 1.3609576427255985) internal successors, (739), 588 states have internal predecessors, (739), 264 states have call successors, (264), 80 states have call predecessors, (264), 79 states have return successors, (259), 256 states have call predecessors, (259), 259 states have call successors, (259) Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-28 23:55:52,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:55:52,727 INFO L93 Difference]: Finished difference Result 1795 states and 2564 transitions. [2023-11-28 23:55:52,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 23:55:52,729 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 53 [2023-11-28 23:55:52,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:55:52,751 INFO L225 Difference]: With dead ends: 1795 [2023-11-28 23:55:52,751 INFO L226 Difference]: Without dead ends: 902 [2023-11-28 23:55:52,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:55:52,764 INFO L413 NwaCegarLoop]: 786 mSDtfsCounter, 1479 mSDsluCounter, 1293 mSDsCounter, 0 mSdLazyCounter, 1607 mSolverCounterSat, 722 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1680 SdHoareTripleChecker+Valid, 2079 SdHoareTripleChecker+Invalid, 2329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 722 IncrementalHoareTripleChecker+Valid, 1607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-11-28 23:55:52,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1680 Valid, 2079 Invalid, 2329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [722 Valid, 1607 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-11-28 23:55:52,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2023-11-28 23:55:52,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 902. [2023-11-28 23:55:52,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 902 states, 536 states have (on average 1.287313432835821) internal successors, (690), 576 states have internal predecessors, (690), 259 states have call successors, (259), 79 states have call predecessors, (259), 78 states have return successors, (257), 254 states have call predecessors, (257), 257 states have call successors, (257) [2023-11-28 23:55:52,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1206 transitions. [2023-11-28 23:55:52,894 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1206 transitions. Word has length 53 [2023-11-28 23:55:52,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:55:52,896 INFO L495 AbstractCegarLoop]: Abstraction has 902 states and 1206 transitions. [2023-11-28 23:55:52,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-28 23:55:52,896 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1206 transitions. [2023-11-28 23:55:52,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-28 23:55:52,899 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:55:52,900 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] [2023-11-28 23:55:52,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-28 23:55:52,900 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-28 23:55:52,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:55:52,901 INFO L85 PathProgramCache]: Analyzing trace with hash -2052108118, now seen corresponding path program 1 times [2023-11-28 23:55:52,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:55:52,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150995451] [2023-11-28 23:55:52,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:55:52,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:55:53,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:53,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:55:53,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:53,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 23:55:53,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:53,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-28 23:55:53,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:53,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-28 23:55:53,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:53,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-28 23:55:53,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:53,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-28 23:55:53,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:53,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-28 23:55:53,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:53,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:55:53,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:53,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-28 23:55:53,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:53,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-28 23:55:53,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:53,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-28 23:55:53,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:53,469 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 23:55:53,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:55:53,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150995451] [2023-11-28 23:55:53,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150995451] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:55:53,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:55:53,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-28 23:55:53,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532466323] [2023-11-28 23:55:53,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:55:53,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:55:53,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:55:53,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:55:53,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:55:53,472 INFO L87 Difference]: Start difference. First operand 902 states and 1206 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-28 23:55:56,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:55:56,822 INFO L93 Difference]: Finished difference Result 902 states and 1206 transitions. [2023-11-28 23:55:56,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 23:55:56,823 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 58 [2023-11-28 23:55:56,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:55:56,831 INFO L225 Difference]: With dead ends: 902 [2023-11-28 23:55:56,831 INFO L226 Difference]: Without dead ends: 900 [2023-11-28 23:55:56,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:55:56,833 INFO L413 NwaCegarLoop]: 774 mSDtfsCounter, 1448 mSDsluCounter, 1273 mSDsCounter, 0 mSdLazyCounter, 1587 mSolverCounterSat, 712 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1646 SdHoareTripleChecker+Valid, 2047 SdHoareTripleChecker+Invalid, 2299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 712 IncrementalHoareTripleChecker+Valid, 1587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-11-28 23:55:56,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1646 Valid, 2047 Invalid, 2299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [712 Valid, 1587 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-11-28 23:55:56,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2023-11-28 23:55:56,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 900. [2023-11-28 23:55:56,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 900 states, 535 states have (on average 1.285981308411215) internal successors, (688), 574 states have internal predecessors, (688), 259 states have call successors, (259), 79 states have call predecessors, (259), 78 states have return successors, (257), 254 states have call predecessors, (257), 257 states have call successors, (257) [2023-11-28 23:55:56,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 1204 transitions. [2023-11-28 23:55:56,914 INFO L78 Accepts]: Start accepts. Automaton has 900 states and 1204 transitions. Word has length 58 [2023-11-28 23:55:56,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:55:56,915 INFO L495 AbstractCegarLoop]: Abstraction has 900 states and 1204 transitions. [2023-11-28 23:55:56,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-28 23:55:56,915 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 1204 transitions. [2023-11-28 23:55:56,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-28 23:55:56,918 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:55:56,918 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] [2023-11-28 23:55:56,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-28 23:55:56,918 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-28 23:55:56,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:55:56,919 INFO L85 PathProgramCache]: Analyzing trace with hash 409854746, now seen corresponding path program 1 times [2023-11-28 23:55:56,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:55:56,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286987564] [2023-11-28 23:55:56,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:55:56,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:55:57,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:57,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:55:57,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:57,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 23:55:57,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:57,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-28 23:55:57,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:57,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-28 23:55:57,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:57,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-28 23:55:57,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:57,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-28 23:55:57,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:57,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-28 23:55:57,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:57,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:55:57,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:57,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-28 23:55:57,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:57,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-28 23:55:57,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:57,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-28 23:55:57,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:57,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-28 23:55:57,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:57,482 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 23:55:57,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:55:57,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286987564] [2023-11-28 23:55:57,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286987564] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:55:57,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:55:57,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-28 23:55:57,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514947117] [2023-11-28 23:55:57,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:55:57,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:55:57,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:55:57,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:55:57,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:55:57,486 INFO L87 Difference]: Start difference. First operand 900 states and 1204 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-28 23:56:00,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:56:00,738 INFO L93 Difference]: Finished difference Result 900 states and 1204 transitions. [2023-11-28 23:56:00,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 23:56:00,738 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 63 [2023-11-28 23:56:00,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:56:00,746 INFO L225 Difference]: With dead ends: 900 [2023-11-28 23:56:00,746 INFO L226 Difference]: Without dead ends: 898 [2023-11-28 23:56:00,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:56:00,748 INFO L413 NwaCegarLoop]: 774 mSDtfsCounter, 1442 mSDsluCounter, 1273 mSDsCounter, 0 mSdLazyCounter, 1583 mSolverCounterSat, 712 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1639 SdHoareTripleChecker+Valid, 2047 SdHoareTripleChecker+Invalid, 2295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 712 IncrementalHoareTripleChecker+Valid, 1583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-28 23:56:00,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1639 Valid, 2047 Invalid, 2295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [712 Valid, 1583 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-28 23:56:00,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2023-11-28 23:56:00,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 898. [2023-11-28 23:56:00,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 898 states, 534 states have (on average 1.2846441947565543) internal successors, (686), 572 states have internal predecessors, (686), 259 states have call successors, (259), 79 states have call predecessors, (259), 78 states have return successors, (257), 254 states have call predecessors, (257), 257 states have call successors, (257) [2023-11-28 23:56:00,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 1202 transitions. [2023-11-28 23:56:00,833 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 1202 transitions. Word has length 63 [2023-11-28 23:56:00,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:56:00,833 INFO L495 AbstractCegarLoop]: Abstraction has 898 states and 1202 transitions. [2023-11-28 23:56:00,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-28 23:56:00,834 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 1202 transitions. [2023-11-28 23:56:00,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-28 23:56:00,836 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:56:00,836 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:56:00,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-28 23:56:00,837 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-28 23:56:00,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:56:00,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1265887796, now seen corresponding path program 1 times [2023-11-28 23:56:00,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:56:00,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161762824] [2023-11-28 23:56:00,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:56:00,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:56:00,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:01,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:56:01,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:01,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 23:56:01,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:01,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-28 23:56:01,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:01,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-28 23:56:01,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:01,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-28 23:56:01,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:01,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-28 23:56:01,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:01,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-28 23:56:01,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:01,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:56:01,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:01,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-28 23:56:01,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:01,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-28 23:56:01,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:01,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-28 23:56:01,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:01,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-28 23:56:01,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:01,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-28 23:56:01,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:01,309 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 23:56:01,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:56:01,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161762824] [2023-11-28 23:56:01,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161762824] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:56:01,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:56:01,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-28 23:56:01,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302749657] [2023-11-28 23:56:01,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:56:01,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:56:01,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:56:01,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:56:01,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:56:01,311 INFO L87 Difference]: Start difference. First operand 898 states and 1202 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-28 23:56:04,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:56:04,505 INFO L93 Difference]: Finished difference Result 898 states and 1202 transitions. [2023-11-28 23:56:04,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 23:56:04,506 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 68 [2023-11-28 23:56:04,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:56:04,512 INFO L225 Difference]: With dead ends: 898 [2023-11-28 23:56:04,513 INFO L226 Difference]: Without dead ends: 896 [2023-11-28 23:56:04,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:56:04,514 INFO L413 NwaCegarLoop]: 774 mSDtfsCounter, 1436 mSDsluCounter, 1273 mSDsCounter, 0 mSdLazyCounter, 1579 mSolverCounterSat, 712 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1632 SdHoareTripleChecker+Valid, 2047 SdHoareTripleChecker+Invalid, 2291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 712 IncrementalHoareTripleChecker+Valid, 1579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-28 23:56:04,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1632 Valid, 2047 Invalid, 2291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [712 Valid, 1579 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-28 23:56:04,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2023-11-28 23:56:04,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 896. [2023-11-28 23:56:04,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 896 states, 533 states have (on average 1.2833020637898687) internal successors, (684), 570 states have internal predecessors, (684), 259 states have call successors, (259), 79 states have call predecessors, (259), 78 states have return successors, (257), 254 states have call predecessors, (257), 257 states have call successors, (257) [2023-11-28 23:56:04,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 1200 transitions. [2023-11-28 23:56:04,564 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 1200 transitions. Word has length 68 [2023-11-28 23:56:04,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:56:04,564 INFO L495 AbstractCegarLoop]: Abstraction has 896 states and 1200 transitions. [2023-11-28 23:56:04,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-28 23:56:04,565 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 1200 transitions. [2023-11-28 23:56:04,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-28 23:56:04,566 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:56:04,567 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:56:04,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-28 23:56:04,567 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-28 23:56:04,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:56:04,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1118017118, now seen corresponding path program 1 times [2023-11-28 23:56:04,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:56:04,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748785263] [2023-11-28 23:56:04,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:56:04,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:56:04,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:04,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:56:04,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:04,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 23:56:04,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:04,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-28 23:56:04,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:04,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-28 23:56:04,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:04,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-28 23:56:04,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:04,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-28 23:56:04,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:04,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-28 23:56:04,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:04,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:56:04,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:04,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-28 23:56:04,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:04,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-28 23:56:04,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:04,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-28 23:56:04,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:04,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-28 23:56:04,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:04,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-28 23:56:04,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:04,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-28 23:56:04,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:04,950 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 23:56:04,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:56:04,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748785263] [2023-11-28 23:56:04,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748785263] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:56:04,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:56:04,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-28 23:56:04,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313605944] [2023-11-28 23:56:04,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:56:04,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:56:04,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:56:04,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:56:04,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:56:04,952 INFO L87 Difference]: Start difference. First operand 896 states and 1200 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-28 23:56:07,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:56:07,950 INFO L93 Difference]: Finished difference Result 896 states and 1200 transitions. [2023-11-28 23:56:07,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 23:56:07,950 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 73 [2023-11-28 23:56:07,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:56:07,957 INFO L225 Difference]: With dead ends: 896 [2023-11-28 23:56:07,957 INFO L226 Difference]: Without dead ends: 894 [2023-11-28 23:56:07,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:56:07,958 INFO L413 NwaCegarLoop]: 774 mSDtfsCounter, 1430 mSDsluCounter, 1273 mSDsCounter, 0 mSdLazyCounter, 1575 mSolverCounterSat, 712 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1625 SdHoareTripleChecker+Valid, 2047 SdHoareTripleChecker+Invalid, 2287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 712 IncrementalHoareTripleChecker+Valid, 1575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-28 23:56:07,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1625 Valid, 2047 Invalid, 2287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [712 Valid, 1575 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-28 23:56:07,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2023-11-28 23:56:08,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 894. [2023-11-28 23:56:08,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 532 states have (on average 1.281954887218045) internal successors, (682), 568 states have internal predecessors, (682), 259 states have call successors, (259), 79 states have call predecessors, (259), 78 states have return successors, (257), 254 states have call predecessors, (257), 257 states have call successors, (257) [2023-11-28 23:56:08,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1198 transitions. [2023-11-28 23:56:08,030 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1198 transitions. Word has length 73 [2023-11-28 23:56:08,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:56:08,030 INFO L495 AbstractCegarLoop]: Abstraction has 894 states and 1198 transitions. [2023-11-28 23:56:08,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-28 23:56:08,031 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1198 transitions. [2023-11-28 23:56:08,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-28 23:56:08,032 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:56:08,032 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:56:08,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-28 23:56:08,033 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-28 23:56:08,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:56:08,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1060898534, now seen corresponding path program 1 times [2023-11-28 23:56:08,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:56:08,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850620555] [2023-11-28 23:56:08,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:56:08,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:56:08,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:08,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:56:08,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:08,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 23:56:08,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:08,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-28 23:56:08,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:08,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-28 23:56:08,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:08,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-28 23:56:08,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:08,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-28 23:56:08,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:08,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-28 23:56:08,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:08,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:56:08,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:08,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-28 23:56:08,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:08,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-28 23:56:08,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:08,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-28 23:56:08,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:08,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-28 23:56:08,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:08,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-28 23:56:08,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:08,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-28 23:56:08,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:08,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-28 23:56:08,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:08,508 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 23:56:08,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:56:08,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850620555] [2023-11-28 23:56:08,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850620555] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:56:08,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:56:08,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-28 23:56:08,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655469002] [2023-11-28 23:56:08,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:56:08,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:56:08,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:56:08,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:56:08,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:56:08,511 INFO L87 Difference]: Start difference. First operand 894 states and 1198 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-28 23:56:11,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:56:11,560 INFO L93 Difference]: Finished difference Result 894 states and 1198 transitions. [2023-11-28 23:56:11,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 23:56:11,561 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (16), 4 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 78 [2023-11-28 23:56:11,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:56:11,567 INFO L225 Difference]: With dead ends: 894 [2023-11-28 23:56:11,567 INFO L226 Difference]: Without dead ends: 892 [2023-11-28 23:56:11,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:56:11,568 INFO L413 NwaCegarLoop]: 774 mSDtfsCounter, 1424 mSDsluCounter, 1273 mSDsCounter, 0 mSdLazyCounter, 1571 mSolverCounterSat, 712 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1618 SdHoareTripleChecker+Valid, 2047 SdHoareTripleChecker+Invalid, 2283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 712 IncrementalHoareTripleChecker+Valid, 1571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-28 23:56:11,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1618 Valid, 2047 Invalid, 2283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [712 Valid, 1571 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-28 23:56:11,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 892 states. [2023-11-28 23:56:11,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 892 to 892. [2023-11-28 23:56:11,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 892 states, 531 states have (on average 1.28060263653484) internal successors, (680), 566 states have internal predecessors, (680), 259 states have call successors, (259), 79 states have call predecessors, (259), 78 states have return successors, (257), 254 states have call predecessors, (257), 257 states have call successors, (257) [2023-11-28 23:56:11,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 892 states to 892 states and 1196 transitions. [2023-11-28 23:56:11,644 INFO L78 Accepts]: Start accepts. Automaton has 892 states and 1196 transitions. Word has length 78 [2023-11-28 23:56:11,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:56:11,644 INFO L495 AbstractCegarLoop]: Abstraction has 892 states and 1196 transitions. [2023-11-28 23:56:11,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-28 23:56:11,645 INFO L276 IsEmpty]: Start isEmpty. Operand 892 states and 1196 transitions. [2023-11-28 23:56:11,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-28 23:56:11,646 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:56:11,646 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:56:11,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-28 23:56:11,647 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-28 23:56:11,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:56:11,647 INFO L85 PathProgramCache]: Analyzing trace with hash -290868453, now seen corresponding path program 1 times [2023-11-28 23:56:11,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:56:11,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559595812] [2023-11-28 23:56:11,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:56:11,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:56:11,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:11,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:56:11,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:11,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 23:56:11,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:11,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-28 23:56:11,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:11,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-28 23:56:11,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:11,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-28 23:56:11,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:12,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-28 23:56:12,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:12,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-28 23:56:12,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:12,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:56:12,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:12,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-28 23:56:12,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:12,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-28 23:56:12,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:12,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-28 23:56:12,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:12,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-28 23:56:12,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:12,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-28 23:56:12,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:12,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-28 23:56:12,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:12,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-28 23:56:12,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:12,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-28 23:56:12,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:12,090 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 23:56:12,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:56:12,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559595812] [2023-11-28 23:56:12,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559595812] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:56:12,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:56:12,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-28 23:56:12,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065636023] [2023-11-28 23:56:12,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:56:12,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:56:12,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:56:12,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:56:12,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:56:12,093 INFO L87 Difference]: Start difference. First operand 892 states and 1196 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-28 23:56:15,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:56:15,106 INFO L93 Difference]: Finished difference Result 892 states and 1196 transitions. [2023-11-28 23:56:15,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 23:56:15,106 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (17), 4 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 83 [2023-11-28 23:56:15,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:56:15,112 INFO L225 Difference]: With dead ends: 892 [2023-11-28 23:56:15,112 INFO L226 Difference]: Without dead ends: 890 [2023-11-28 23:56:15,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:56:15,113 INFO L413 NwaCegarLoop]: 774 mSDtfsCounter, 1418 mSDsluCounter, 1273 mSDsCounter, 0 mSdLazyCounter, 1567 mSolverCounterSat, 712 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1611 SdHoareTripleChecker+Valid, 2047 SdHoareTripleChecker+Invalid, 2279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 712 IncrementalHoareTripleChecker+Valid, 1567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-28 23:56:15,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1611 Valid, 2047 Invalid, 2279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [712 Valid, 1567 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-28 23:56:15,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2023-11-28 23:56:15,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 890. [2023-11-28 23:56:15,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 890 states, 530 states have (on average 1.2792452830188679) internal successors, (678), 564 states have internal predecessors, (678), 259 states have call successors, (259), 79 states have call predecessors, (259), 78 states have return successors, (257), 254 states have call predecessors, (257), 257 states have call successors, (257) [2023-11-28 23:56:15,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 890 states to 890 states and 1194 transitions. [2023-11-28 23:56:15,206 INFO L78 Accepts]: Start accepts. Automaton has 890 states and 1194 transitions. Word has length 83 [2023-11-28 23:56:15,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:56:15,206 INFO L495 AbstractCegarLoop]: Abstraction has 890 states and 1194 transitions. [2023-11-28 23:56:15,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-28 23:56:15,207 INFO L276 IsEmpty]: Start isEmpty. Operand 890 states and 1194 transitions. [2023-11-28 23:56:15,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-28 23:56:15,208 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:56:15,209 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:56:15,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-28 23:56:15,209 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-28 23:56:15,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:56:15,209 INFO L85 PathProgramCache]: Analyzing trace with hash 969441014, now seen corresponding path program 1 times [2023-11-28 23:56:15,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:56:15,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510390837] [2023-11-28 23:56:15,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:56:15,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:56:15,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:15,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:56:15,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:15,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 23:56:15,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:15,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-28 23:56:15,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:15,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-28 23:56:15,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:15,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-28 23:56:15,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:15,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-28 23:56:15,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:15,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-28 23:56:15,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:15,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:56:15,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:15,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-28 23:56:15,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:15,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-28 23:56:15,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:15,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-28 23:56:15,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:15,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-28 23:56:15,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:15,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-28 23:56:15,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:15,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-28 23:56:15,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:15,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-28 23:56:15,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:15,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-28 23:56:15,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:15,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-28 23:56:15,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:15,663 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 23:56:15,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:56:15,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510390837] [2023-11-28 23:56:15,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510390837] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:56:15,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:56:15,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-28 23:56:15,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178473816] [2023-11-28 23:56:15,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:56:15,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:56:15,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:56:15,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:56:15,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:56:15,665 INFO L87 Difference]: Start difference. First operand 890 states and 1194 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-28 23:56:18,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:56:18,794 INFO L93 Difference]: Finished difference Result 890 states and 1194 transitions. [2023-11-28 23:56:18,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 23:56:18,794 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 88 [2023-11-28 23:56:18,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:56:18,799 INFO L225 Difference]: With dead ends: 890 [2023-11-28 23:56:18,799 INFO L226 Difference]: Without dead ends: 888 [2023-11-28 23:56:18,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:56:18,800 INFO L413 NwaCegarLoop]: 774 mSDtfsCounter, 1412 mSDsluCounter, 1273 mSDsCounter, 0 mSdLazyCounter, 1563 mSolverCounterSat, 712 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1604 SdHoareTripleChecker+Valid, 2047 SdHoareTripleChecker+Invalid, 2275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 712 IncrementalHoareTripleChecker+Valid, 1563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-28 23:56:18,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1604 Valid, 2047 Invalid, 2275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [712 Valid, 1563 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-11-28 23:56:18,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states. [2023-11-28 23:56:18,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 888. [2023-11-28 23:56:18,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 888 states, 529 states have (on average 1.277882797731569) internal successors, (676), 562 states have internal predecessors, (676), 259 states have call successors, (259), 79 states have call predecessors, (259), 78 states have return successors, (257), 254 states have call predecessors, (257), 257 states have call successors, (257) [2023-11-28 23:56:18,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 888 states to 888 states and 1192 transitions. [2023-11-28 23:56:18,856 INFO L78 Accepts]: Start accepts. Automaton has 888 states and 1192 transitions. Word has length 88 [2023-11-28 23:56:18,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:56:18,856 INFO L495 AbstractCegarLoop]: Abstraction has 888 states and 1192 transitions. [2023-11-28 23:56:18,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-28 23:56:18,856 INFO L276 IsEmpty]: Start isEmpty. Operand 888 states and 1192 transitions. [2023-11-28 23:56:18,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-28 23:56:18,858 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:56:18,858 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:56:18,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-28 23:56:18,859 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-28 23:56:18,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:56:18,859 INFO L85 PathProgramCache]: Analyzing trace with hash -374956743, now seen corresponding path program 1 times [2023-11-28 23:56:18,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:56:18,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051362674] [2023-11-28 23:56:18,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:56:18,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:56:19,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:19,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:56:19,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:19,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 23:56:19,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:19,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-28 23:56:19,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:19,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-28 23:56:19,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:19,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-28 23:56:19,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:19,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-28 23:56:19,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:19,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-28 23:56:19,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:19,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:56:19,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:19,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-28 23:56:19,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:19,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-28 23:56:19,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:19,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-28 23:56:19,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:19,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-28 23:56:19,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:19,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-28 23:56:19,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:19,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-28 23:56:19,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:19,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-28 23:56:19,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:19,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-28 23:56:19,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:19,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-28 23:56:19,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:19,317 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 23:56:19,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:56:19,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051362674] [2023-11-28 23:56:19,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051362674] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:56:19,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:56:19,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-28 23:56:19,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422679984] [2023-11-28 23:56:19,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:56:19,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:56:19,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:56:19,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:56:19,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:56:19,319 INFO L87 Difference]: Start difference. First operand 888 states and 1192 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-28 23:56:22,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:56:22,146 INFO L93 Difference]: Finished difference Result 888 states and 1192 transitions. [2023-11-28 23:56:22,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 23:56:22,147 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 90 [2023-11-28 23:56:22,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:56:22,152 INFO L225 Difference]: With dead ends: 888 [2023-11-28 23:56:22,152 INFO L226 Difference]: Without dead ends: 886 [2023-11-28 23:56:22,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:56:22,154 INFO L413 NwaCegarLoop]: 774 mSDtfsCounter, 1404 mSDsluCounter, 1273 mSDsCounter, 0 mSdLazyCounter, 1559 mSolverCounterSat, 712 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1596 SdHoareTripleChecker+Valid, 2047 SdHoareTripleChecker+Invalid, 2271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 712 IncrementalHoareTripleChecker+Valid, 1559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-28 23:56:22,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1596 Valid, 2047 Invalid, 2271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [712 Valid, 1559 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-28 23:56:22,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2023-11-28 23:56:22,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 886. [2023-11-28 23:56:22,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 886 states, 528 states have (on average 1.2765151515151516) internal successors, (674), 560 states have internal predecessors, (674), 259 states have call successors, (259), 79 states have call predecessors, (259), 78 states have return successors, (257), 254 states have call predecessors, (257), 257 states have call successors, (257) [2023-11-28 23:56:22,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1190 transitions. [2023-11-28 23:56:22,236 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1190 transitions. Word has length 90 [2023-11-28 23:56:22,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:56:22,236 INFO L495 AbstractCegarLoop]: Abstraction has 886 states and 1190 transitions. [2023-11-28 23:56:22,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-28 23:56:22,237 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1190 transitions. [2023-11-28 23:56:22,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-28 23:56:22,238 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:56:22,238 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:56:22,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-28 23:56:22,239 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-28 23:56:22,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:56:22,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1171817956, now seen corresponding path program 1 times [2023-11-28 23:56:22,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:56:22,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374519416] [2023-11-28 23:56:22,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:56:22,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:56:22,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:22,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:56:22,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:22,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 23:56:22,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:22,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-28 23:56:22,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:22,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-28 23:56:22,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:22,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-28 23:56:22,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:22,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-28 23:56:22,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:22,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-28 23:56:22,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:22,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:56:22,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:22,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-28 23:56:22,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:22,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-28 23:56:22,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:22,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-28 23:56:22,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:22,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-28 23:56:22,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:22,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-28 23:56:22,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:22,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-28 23:56:22,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:22,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-28 23:56:22,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:22,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-28 23:56:22,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:22,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-28 23:56:22,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:22,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-28 23:56:22,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:22,595 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 23:56:22,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:56:22,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374519416] [2023-11-28 23:56:22,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374519416] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:56:22,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:56:22,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-28 23:56:22,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852472498] [2023-11-28 23:56:22,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:56:22,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:56:22,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:56:22,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:56:22,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:56:22,597 INFO L87 Difference]: Start difference. First operand 886 states and 1190 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-28 23:56:25,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:56:25,487 INFO L93 Difference]: Finished difference Result 886 states and 1190 transitions. [2023-11-28 23:56:25,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 23:56:25,488 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 95 [2023-11-28 23:56:25,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:56:25,494 INFO L225 Difference]: With dead ends: 886 [2023-11-28 23:56:25,494 INFO L226 Difference]: Without dead ends: 884 [2023-11-28 23:56:25,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:56:25,495 INFO L413 NwaCegarLoop]: 774 mSDtfsCounter, 1400 mSDsluCounter, 1273 mSDsCounter, 0 mSdLazyCounter, 1555 mSolverCounterSat, 712 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1591 SdHoareTripleChecker+Valid, 2047 SdHoareTripleChecker+Invalid, 2267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 712 IncrementalHoareTripleChecker+Valid, 1555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-28 23:56:25,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1591 Valid, 2047 Invalid, 2267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [712 Valid, 1555 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-28 23:56:25,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884 states. [2023-11-28 23:56:25,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884 to 884. [2023-11-28 23:56:25,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 884 states, 527 states have (on average 1.2751423149905123) internal successors, (672), 558 states have internal predecessors, (672), 259 states have call successors, (259), 79 states have call predecessors, (259), 78 states have return successors, (257), 254 states have call predecessors, (257), 257 states have call successors, (257) [2023-11-28 23:56:25,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 1188 transitions. [2023-11-28 23:56:25,588 INFO L78 Accepts]: Start accepts. Automaton has 884 states and 1188 transitions. Word has length 95 [2023-11-28 23:56:25,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:56:25,588 INFO L495 AbstractCegarLoop]: Abstraction has 884 states and 1188 transitions. [2023-11-28 23:56:25,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-28 23:56:25,589 INFO L276 IsEmpty]: Start isEmpty. Operand 884 states and 1188 transitions. [2023-11-28 23:56:25,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-28 23:56:25,590 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:56:25,591 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:56:25,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-28 23:56:25,591 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-28 23:56:25,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:56:25,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1003002977, now seen corresponding path program 1 times [2023-11-28 23:56:25,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:56:25,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279980295] [2023-11-28 23:56:25,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:56:25,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:56:25,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:25,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:56:25,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:25,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 23:56:25,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:25,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-28 23:56:25,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:25,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-28 23:56:25,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:25,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-28 23:56:25,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:25,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-28 23:56:25,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:25,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-28 23:56:25,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:25,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:56:25,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:25,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-28 23:56:25,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:25,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-28 23:56:25,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:25,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-28 23:56:25,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:25,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-28 23:56:25,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:26,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-28 23:56:26,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:26,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-28 23:56:26,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:26,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-28 23:56:26,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:26,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-28 23:56:26,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:26,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-28 23:56:26,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:26,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-28 23:56:26,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:26,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-28 23:56:26,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:26,049 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 23:56:26,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:56:26,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279980295] [2023-11-28 23:56:26,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279980295] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:56:26,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:56:26,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-28 23:56:26,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815949898] [2023-11-28 23:56:26,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:56:26,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:56:26,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:56:26,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:56:26,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:56:26,051 INFO L87 Difference]: Start difference. First operand 884 states and 1188 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-28 23:56:29,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:56:29,113 INFO L93 Difference]: Finished difference Result 884 states and 1188 transitions. [2023-11-28 23:56:29,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 23:56:29,113 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 100 [2023-11-28 23:56:29,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:56:29,119 INFO L225 Difference]: With dead ends: 884 [2023-11-28 23:56:29,119 INFO L226 Difference]: Without dead ends: 882 [2023-11-28 23:56:29,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:56:29,120 INFO L413 NwaCegarLoop]: 774 mSDtfsCounter, 1394 mSDsluCounter, 1273 mSDsCounter, 0 mSdLazyCounter, 1551 mSolverCounterSat, 712 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1584 SdHoareTripleChecker+Valid, 2047 SdHoareTripleChecker+Invalid, 2263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 712 IncrementalHoareTripleChecker+Valid, 1551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-28 23:56:29,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1584 Valid, 2047 Invalid, 2263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [712 Valid, 1551 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-28 23:56:29,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2023-11-28 23:56:29,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 882. [2023-11-28 23:56:29,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 526 states have (on average 1.273764258555133) internal successors, (670), 556 states have internal predecessors, (670), 259 states have call successors, (259), 79 states have call predecessors, (259), 78 states have return successors, (257), 254 states have call predecessors, (257), 257 states have call successors, (257) [2023-11-28 23:56:29,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1186 transitions. [2023-11-28 23:56:29,212 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1186 transitions. Word has length 100 [2023-11-28 23:56:29,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:56:29,212 INFO L495 AbstractCegarLoop]: Abstraction has 882 states and 1186 transitions. [2023-11-28 23:56:29,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-28 23:56:29,213 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1186 transitions. [2023-11-28 23:56:29,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-28 23:56:29,215 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:56:29,215 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2023-11-28 23:56:29,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-28 23:56:29,215 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-28 23:56:29,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:56:29,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1082662971, now seen corresponding path program 1 times [2023-11-28 23:56:29,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:56:29,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539769616] [2023-11-28 23:56:29,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:56:29,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:56:29,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:29,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:56:29,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:29,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 23:56:29,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:29,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-28 23:56:29,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:29,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-28 23:56:29,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:29,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-28 23:56:29,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:29,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:56:29,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:30,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:56:30,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:30,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:56:30,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:30,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-28 23:56:30,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:30,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:56:30,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:30,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:56:30,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:30,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:56:30,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:30,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-28 23:56:30,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:30,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:56:30,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:30,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:56:30,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:30,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:56:30,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:30,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-28 23:56:30,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:30,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:56:30,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:30,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:56:30,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:30,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:56:30,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:30,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-28 23:56:30,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:30,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:56:30,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:30,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:56:30,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:30,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:56:30,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:30,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-28 23:56:30,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:30,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-28 23:56:30,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:30,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-28 23:56:30,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:30,208 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2023-11-28 23:56:30,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:56:30,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539769616] [2023-11-28 23:56:30,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539769616] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:56:30,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:56:30,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-28 23:56:30,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666433581] [2023-11-28 23:56:30,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:56:30,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-28 23:56:30,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:56:30,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-28 23:56:30,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-28 23:56:30,211 INFO L87 Difference]: Start difference. First operand 882 states and 1186 transitions. Second operand has 9 states, 8 states have (on average 4.375) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-28 23:56:35,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:56:35,764 INFO L93 Difference]: Finished difference Result 1745 states and 2354 transitions. [2023-11-28 23:56:35,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-28 23:56:35,764 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.375) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 131 [2023-11-28 23:56:35,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:56:35,769 INFO L225 Difference]: With dead ends: 1745 [2023-11-28 23:56:35,770 INFO L226 Difference]: Without dead ends: 896 [2023-11-28 23:56:35,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2023-11-28 23:56:35,773 INFO L413 NwaCegarLoop]: 776 mSDtfsCounter, 1669 mSDsluCounter, 2547 mSDsCounter, 0 mSdLazyCounter, 3299 mSolverCounterSat, 1022 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1873 SdHoareTripleChecker+Valid, 3323 SdHoareTripleChecker+Invalid, 4321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1022 IncrementalHoareTripleChecker+Valid, 3299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-11-28 23:56:35,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1873 Valid, 3323 Invalid, 4321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1022 Valid, 3299 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2023-11-28 23:56:35,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2023-11-28 23:56:35,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 882. [2023-11-28 23:56:35,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 526 states have (on average 1.2718631178707225) internal successors, (669), 556 states have internal predecessors, (669), 259 states have call successors, (259), 79 states have call predecessors, (259), 78 states have return successors, (257), 254 states have call predecessors, (257), 257 states have call successors, (257) [2023-11-28 23:56:35,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1185 transitions. [2023-11-28 23:56:35,888 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1185 transitions. Word has length 131 [2023-11-28 23:56:35,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:56:35,889 INFO L495 AbstractCegarLoop]: Abstraction has 882 states and 1185 transitions. [2023-11-28 23:56:35,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.375) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-28 23:56:35,890 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1185 transitions. [2023-11-28 23:56:35,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-28 23:56:35,891 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:56:35,892 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2023-11-28 23:56:35,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-28 23:56:35,892 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-28 23:56:35,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:56:35,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1082603389, now seen corresponding path program 1 times [2023-11-28 23:56:35,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:56:35,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218060309] [2023-11-28 23:56:35,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:56:35,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:56:36,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:36,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:56:36,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:36,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 23:56:36,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:36,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-28 23:56:36,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:36,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-28 23:56:36,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:36,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-28 23:56:36,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:36,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:56:36,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:36,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:56:36,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:36,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:56:36,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:36,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-28 23:56:36,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:36,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:56:36,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:36,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:56:36,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:36,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:56:36,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:36,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-28 23:56:36,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:36,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:56:36,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:36,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:56:36,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:36,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:56:36,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:36,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-28 23:56:36,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:36,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:56:36,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:36,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:56:36,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:36,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:56:36,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:36,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-28 23:56:36,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:36,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:56:36,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:36,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:56:36,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:36,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:56:36,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:36,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-28 23:56:36,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:36,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-28 23:56:36,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:36,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-28 23:56:36,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:36,589 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2023-11-28 23:56:36,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:56:36,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218060309] [2023-11-28 23:56:36,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218060309] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:56:36,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:56:36,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-28 23:56:36,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545027904] [2023-11-28 23:56:36,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:56:36,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 23:56:36,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:56:36,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 23:56:36,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-28 23:56:36,591 INFO L87 Difference]: Start difference. First operand 882 states and 1185 transitions. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-28 23:56:40,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:56:40,743 INFO L93 Difference]: Finished difference Result 896 states and 1209 transitions. [2023-11-28 23:56:40,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-28 23:56:40,743 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 131 [2023-11-28 23:56:40,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:56:40,747 INFO L225 Difference]: With dead ends: 896 [2023-11-28 23:56:40,747 INFO L226 Difference]: Without dead ends: 894 [2023-11-28 23:56:40,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2023-11-28 23:56:40,748 INFO L413 NwaCegarLoop]: 775 mSDtfsCounter, 794 mSDsluCounter, 2191 mSDsCounter, 0 mSdLazyCounter, 2460 mSolverCounterSat, 920 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 794 SdHoareTripleChecker+Valid, 2966 SdHoareTripleChecker+Invalid, 3380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 920 IncrementalHoareTripleChecker+Valid, 2460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-11-28 23:56:40,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [794 Valid, 2966 Invalid, 3380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [920 Valid, 2460 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-11-28 23:56:40,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2023-11-28 23:56:40,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 880. [2023-11-28 23:56:40,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 880 states, 525 states have (on average 1.2704761904761905) internal successors, (667), 554 states have internal predecessors, (667), 259 states have call successors, (259), 79 states have call predecessors, (259), 78 states have return successors, (257), 254 states have call predecessors, (257), 257 states have call successors, (257) [2023-11-28 23:56:40,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1183 transitions. [2023-11-28 23:56:40,856 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1183 transitions. Word has length 131 [2023-11-28 23:56:40,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:56:40,856 INFO L495 AbstractCegarLoop]: Abstraction has 880 states and 1183 transitions. [2023-11-28 23:56:40,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-28 23:56:40,857 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1183 transitions. [2023-11-28 23:56:40,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-28 23:56:40,859 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:56:40,859 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:56:40,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-28 23:56:40,859 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-28 23:56:40,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:56:40,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1569629039, now seen corresponding path program 1 times [2023-11-28 23:56:40,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:56:40,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714052426] [2023-11-28 23:56:40,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:56:40,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:56:41,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:41,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:56:41,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:41,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 23:56:41,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:41,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-28 23:56:41,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:41,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-28 23:56:41,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:41,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-28 23:56:41,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:41,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-28 23:56:41,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:41,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-28 23:56:41,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:41,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:56:41,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:41,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-28 23:56:41,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:41,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-28 23:56:41,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:41,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-28 23:56:41,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:41,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-28 23:56:41,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:41,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-28 23:56:41,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:41,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-28 23:56:41,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:41,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-28 23:56:41,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:41,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-28 23:56:41,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:41,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-28 23:56:41,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:41,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-28 23:56:41,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:41,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-28 23:56:41,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:41,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-28 23:56:41,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:41,331 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 23:56:41,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:56:41,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714052426] [2023-11-28 23:56:41,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714052426] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:56:41,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:56:41,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-28 23:56:41,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036809530] [2023-11-28 23:56:41,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:56:41,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:56:41,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:56:41,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:56:41,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:56:41,333 INFO L87 Difference]: Start difference. First operand 880 states and 1183 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-28 23:56:44,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:56:44,349 INFO L93 Difference]: Finished difference Result 880 states and 1183 transitions. [2023-11-28 23:56:44,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 23:56:44,349 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 105 [2023-11-28 23:56:44,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:56:44,354 INFO L225 Difference]: With dead ends: 880 [2023-11-28 23:56:44,354 INFO L226 Difference]: Without dead ends: 878 [2023-11-28 23:56:44,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:56:44,355 INFO L413 NwaCegarLoop]: 774 mSDtfsCounter, 1379 mSDsluCounter, 1273 mSDsCounter, 0 mSdLazyCounter, 1541 mSolverCounterSat, 712 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1568 SdHoareTripleChecker+Valid, 2047 SdHoareTripleChecker+Invalid, 2253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 712 IncrementalHoareTripleChecker+Valid, 1541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-28 23:56:44,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1568 Valid, 2047 Invalid, 2253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [712 Valid, 1541 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-28 23:56:44,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2023-11-28 23:56:44,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 878. [2023-11-28 23:56:44,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 878 states, 524 states have (on average 1.2690839694656488) internal successors, (665), 552 states have internal predecessors, (665), 259 states have call successors, (259), 79 states have call predecessors, (259), 78 states have return successors, (257), 254 states have call predecessors, (257), 257 states have call successors, (257) [2023-11-28 23:56:44,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1181 transitions. [2023-11-28 23:56:44,426 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1181 transitions. Word has length 105 [2023-11-28 23:56:44,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:56:44,426 INFO L495 AbstractCegarLoop]: Abstraction has 878 states and 1181 transitions. [2023-11-28 23:56:44,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-28 23:56:44,427 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1181 transitions. [2023-11-28 23:56:44,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-11-28 23:56:44,428 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:56:44,429 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2023-11-28 23:56:44,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-28 23:56:44,429 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-28 23:56:44,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:56:44,429 INFO L85 PathProgramCache]: Analyzing trace with hash 5394654, now seen corresponding path program 1 times [2023-11-28 23:56:44,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:56:44,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855560472] [2023-11-28 23:56:44,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:56:44,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:56:44,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:44,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:56:44,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:44,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 23:56:44,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:44,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-28 23:56:44,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:44,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-28 23:56:44,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:44,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-28 23:56:44,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:44,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:56:44,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:44,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:56:44,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:44,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:56:44,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:44,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-28 23:56:44,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:44,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:56:44,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:44,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:56:44,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:44,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:56:44,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:44,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-28 23:56:44,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:44,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:56:44,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:44,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:56:44,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:44,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:56:44,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:44,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-28 23:56:44,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:44,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:56:44,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:44,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:56:44,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:44,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:56:44,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:44,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-28 23:56:44,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:44,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:56:44,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:44,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:56:44,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:44,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:56:44,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:44,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-28 23:56:44,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:44,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-28 23:56:44,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:44,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-28 23:56:44,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:44,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:56:44,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:44,952 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2023-11-28 23:56:44,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:56:44,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855560472] [2023-11-28 23:56:44,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855560472] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:56:44,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:56:44,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-28 23:56:44,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791677763] [2023-11-28 23:56:44,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:56:44,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:56:44,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:56:44,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:56:44,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:56:44,954 INFO L87 Difference]: Start difference. First operand 878 states and 1181 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-28 23:56:48,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:56:48,152 INFO L93 Difference]: Finished difference Result 1733 states and 2340 transitions. [2023-11-28 23:56:48,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 23:56:48,153 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 137 [2023-11-28 23:56:48,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:56:48,157 INFO L225 Difference]: With dead ends: 1733 [2023-11-28 23:56:48,157 INFO L226 Difference]: Without dead ends: 888 [2023-11-28 23:56:48,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:56:48,160 INFO L413 NwaCegarLoop]: 776 mSDtfsCounter, 1627 mSDsluCounter, 1059 mSDsCounter, 0 mSdLazyCounter, 1226 mSolverCounterSat, 1021 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1831 SdHoareTripleChecker+Valid, 1835 SdHoareTripleChecker+Invalid, 2247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1021 IncrementalHoareTripleChecker+Valid, 1226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-28 23:56:48,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1831 Valid, 1835 Invalid, 2247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1021 Valid, 1226 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-11-28 23:56:48,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states. [2023-11-28 23:56:48,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 874. [2023-11-28 23:56:48,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 874 states, 521 states have (on average 1.2667946257197698) internal successors, (660), 548 states have internal predecessors, (660), 259 states have call successors, (259), 79 states have call predecessors, (259), 78 states have return successors, (257), 254 states have call predecessors, (257), 257 states have call successors, (257) [2023-11-28 23:56:48,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 874 states to 874 states and 1176 transitions. [2023-11-28 23:56:48,233 INFO L78 Accepts]: Start accepts. Automaton has 874 states and 1176 transitions. Word has length 137 [2023-11-28 23:56:48,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:56:48,234 INFO L495 AbstractCegarLoop]: Abstraction has 874 states and 1176 transitions. [2023-11-28 23:56:48,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-28 23:56:48,234 INFO L276 IsEmpty]: Start isEmpty. Operand 874 states and 1176 transitions. [2023-11-28 23:56:48,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-28 23:56:48,236 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:56:48,236 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 7, 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] [2023-11-28 23:56:48,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-28 23:56:48,236 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-28 23:56:48,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:56:48,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1397865671, now seen corresponding path program 1 times [2023-11-28 23:56:48,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:56:48,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994224848] [2023-11-28 23:56:48,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:56:48,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:56:48,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:48,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:56:48,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:48,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 23:56:48,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:48,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-28 23:56:48,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:48,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-28 23:56:48,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:48,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-28 23:56:48,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:48,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-28 23:56:48,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:48,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-28 23:56:48,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:48,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:56:48,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:48,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-28 23:56:48,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:48,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-28 23:56:48,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:48,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-28 23:56:48,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:48,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-28 23:56:48,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:48,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:56:48,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:48,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:56:48,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:48,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:56:48,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:48,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-28 23:56:48,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:48,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:56:48,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:48,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:56:48,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:48,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:56:48,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:48,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-28 23:56:48,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:48,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:56:48,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:48,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:56:48,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:48,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:56:48,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:48,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-28 23:56:48,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:48,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-28 23:56:48,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:48,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-28 23:56:48,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:48,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:56:48,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:48,954 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2023-11-28 23:56:48,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:56:48,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994224848] [2023-11-28 23:56:48,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994224848] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:56:48,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:56:48,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-28 23:56:48,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483971365] [2023-11-28 23:56:48,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:56:48,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-28 23:56:48,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:56:48,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-28 23:56:48,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-28 23:56:48,957 INFO L87 Difference]: Start difference. First operand 874 states and 1176 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-28 23:56:54,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:56:54,005 INFO L93 Difference]: Finished difference Result 1505 states and 1992 transitions. [2023-11-28 23:56:54,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-28 23:56:54,005 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) Word has length 130 [2023-11-28 23:56:54,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:56:54,011 INFO L225 Difference]: With dead ends: 1505 [2023-11-28 23:56:54,011 INFO L226 Difference]: Without dead ends: 893 [2023-11-28 23:56:54,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2023-11-28 23:56:54,013 INFO L413 NwaCegarLoop]: 775 mSDtfsCounter, 771 mSDsluCounter, 2750 mSDsCounter, 0 mSdLazyCounter, 3069 mSolverCounterSat, 924 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 772 SdHoareTripleChecker+Valid, 3525 SdHoareTripleChecker+Invalid, 3993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 924 IncrementalHoareTripleChecker+Valid, 3069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2023-11-28 23:56:54,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [772 Valid, 3525 Invalid, 3993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [924 Valid, 3069 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2023-11-28 23:56:54,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 893 states. [2023-11-28 23:56:54,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 893 to 878. [2023-11-28 23:56:54,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 878 states, 524 states have (on average 1.265267175572519) internal successors, (663), 551 states have internal predecessors, (663), 259 states have call successors, (259), 79 states have call predecessors, (259), 79 states have return successors, (261), 255 states have call predecessors, (261), 257 states have call successors, (261) [2023-11-28 23:56:54,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1183 transitions. [2023-11-28 23:56:54,089 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1183 transitions. Word has length 130 [2023-11-28 23:56:54,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:56:54,090 INFO L495 AbstractCegarLoop]: Abstraction has 878 states and 1183 transitions. [2023-11-28 23:56:54,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-28 23:56:54,090 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1183 transitions. [2023-11-28 23:56:54,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-28 23:56:54,092 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:56:54,092 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:56:54,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-28 23:56:54,093 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-28 23:56:54,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:56:54,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1693753941, now seen corresponding path program 1 times [2023-11-28 23:56:54,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:56:54,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128427620] [2023-11-28 23:56:54,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:56:54,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:56:54,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:54,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:56:54,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:54,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 23:56:54,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:54,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-28 23:56:54,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:54,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-28 23:56:54,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:54,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-28 23:56:54,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:54,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-28 23:56:54,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:54,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-28 23:56:54,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:54,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:56:54,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:54,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-28 23:56:54,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:54,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-28 23:56:54,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:54,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-28 23:56:54,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:54,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-28 23:56:54,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:54,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-28 23:56:54,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:54,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-28 23:56:54,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:54,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-28 23:56:54,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:54,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-28 23:56:54,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:54,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-28 23:56:54,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:54,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-28 23:56:54,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:54,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-28 23:56:54,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:54,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-28 23:56:54,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:54,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-28 23:56:54,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:54,416 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 23:56:54,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:56:54,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128427620] [2023-11-28 23:56:54,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128427620] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:56:54,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:56:54,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-28 23:56:54,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386194936] [2023-11-28 23:56:54,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:56:54,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:56:54,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:56:54,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:56:54,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:56:54,419 INFO L87 Difference]: Start difference. First operand 878 states and 1183 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-28 23:56:57,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:56:57,329 INFO L93 Difference]: Finished difference Result 878 states and 1183 transitions. [2023-11-28 23:56:57,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 23:56:57,330 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 110 [2023-11-28 23:56:57,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:56:57,336 INFO L225 Difference]: With dead ends: 878 [2023-11-28 23:56:57,337 INFO L226 Difference]: Without dead ends: 876 [2023-11-28 23:56:57,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:56:57,338 INFO L413 NwaCegarLoop]: 774 mSDtfsCounter, 1358 mSDsluCounter, 1273 mSDsCounter, 0 mSdLazyCounter, 1527 mSolverCounterSat, 712 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1546 SdHoareTripleChecker+Valid, 2047 SdHoareTripleChecker+Invalid, 2239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 712 IncrementalHoareTripleChecker+Valid, 1527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-28 23:56:57,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1546 Valid, 2047 Invalid, 2239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [712 Valid, 1527 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-28 23:56:57,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2023-11-28 23:56:57,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 876. [2023-11-28 23:56:57,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 876 states, 523 states have (on average 1.2638623326959848) internal successors, (661), 549 states have internal predecessors, (661), 259 states have call successors, (259), 79 states have call predecessors, (259), 79 states have return successors, (261), 255 states have call predecessors, (261), 257 states have call successors, (261) [2023-11-28 23:56:57,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 1181 transitions. [2023-11-28 23:56:57,416 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 1181 transitions. Word has length 110 [2023-11-28 23:56:57,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:56:57,416 INFO L495 AbstractCegarLoop]: Abstraction has 876 states and 1181 transitions. [2023-11-28 23:56:57,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-28 23:56:57,416 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 1181 transitions. [2023-11-28 23:56:57,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-28 23:56:57,417 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:56:57,418 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:56:57,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-28 23:56:57,418 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-28 23:56:57,418 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:56:57,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1694668262, now seen corresponding path program 1 times [2023-11-28 23:56:57,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:56:57,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811700293] [2023-11-28 23:56:57,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:56:57,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:56:57,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:57,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:56:57,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:57,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 23:56:57,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:57,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-28 23:56:57,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:57,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-28 23:56:57,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:57,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-28 23:56:57,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:57,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-28 23:56:57,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:57,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-28 23:56:57,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:57,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:56:57,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:57,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-28 23:56:57,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:57,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-28 23:56:57,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:57,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-28 23:56:57,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:57,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-28 23:56:57,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:57,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-28 23:56:57,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:57,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-28 23:56:57,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:57,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-28 23:56:57,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:57,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-28 23:56:57,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:57,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-28 23:56:57,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:57,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-28 23:56:57,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:57,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-28 23:56:57,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:57,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-28 23:56:57,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:57,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-28 23:56:57,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:57,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-28 23:56:57,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:57,774 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 23:56:57,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:56:57,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811700293] [2023-11-28 23:56:57,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811700293] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:56:57,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:56:57,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-28 23:56:57,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205231195] [2023-11-28 23:56:57,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:56:57,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:56:57,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:56:57,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:56:57,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:56:57,777 INFO L87 Difference]: Start difference. First operand 876 states and 1181 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-28 23:57:00,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:57:00,487 INFO L93 Difference]: Finished difference Result 876 states and 1181 transitions. [2023-11-28 23:57:00,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 23:57:00,487 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 115 [2023-11-28 23:57:00,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:57:00,492 INFO L225 Difference]: With dead ends: 876 [2023-11-28 23:57:00,492 INFO L226 Difference]: Without dead ends: 874 [2023-11-28 23:57:00,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:57:00,493 INFO L413 NwaCegarLoop]: 774 mSDtfsCounter, 1352 mSDsluCounter, 1273 mSDsCounter, 0 mSdLazyCounter, 1523 mSolverCounterSat, 712 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1539 SdHoareTripleChecker+Valid, 2047 SdHoareTripleChecker+Invalid, 2235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 712 IncrementalHoareTripleChecker+Valid, 1523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-28 23:57:00,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1539 Valid, 2047 Invalid, 2235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [712 Valid, 1523 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-28 23:57:00,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2023-11-28 23:57:00,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 874. [2023-11-28 23:57:00,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 874 states, 522 states have (on average 1.2624521072796935) internal successors, (659), 547 states have internal predecessors, (659), 259 states have call successors, (259), 79 states have call predecessors, (259), 79 states have return successors, (261), 255 states have call predecessors, (261), 257 states have call successors, (261) [2023-11-28 23:57:00,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 874 states to 874 states and 1179 transitions. [2023-11-28 23:57:00,568 INFO L78 Accepts]: Start accepts. Automaton has 874 states and 1179 transitions. Word has length 115 [2023-11-28 23:57:00,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:57:00,569 INFO L495 AbstractCegarLoop]: Abstraction has 874 states and 1179 transitions. [2023-11-28 23:57:00,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-28 23:57:00,569 INFO L276 IsEmpty]: Start isEmpty. Operand 874 states and 1179 transitions. [2023-11-28 23:57:00,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-28 23:57:00,570 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:57:00,570 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 7, 4, 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] [2023-11-28 23:57:00,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-28 23:57:00,570 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-28 23:57:00,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:57:00,571 INFO L85 PathProgramCache]: Analyzing trace with hash -365506736, now seen corresponding path program 1 times [2023-11-28 23:57:00,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:57:00,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896286166] [2023-11-28 23:57:00,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:57:00,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:57:00,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:00,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:00,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:00,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 23:57:00,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:00,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-28 23:57:00,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:00,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-28 23:57:00,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:01,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-28 23:57:01,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:01,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-28 23:57:01,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:01,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-28 23:57:01,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:01,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:01,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:01,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-28 23:57:01,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:01,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-28 23:57:01,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:01,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-28 23:57:01,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:01,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-28 23:57:01,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:01,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:01,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:01,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:57:01,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:01,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:57:01,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:01,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-28 23:57:01,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:01,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:01,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:01,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:57:01,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:01,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:57:01,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:01,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-28 23:57:01,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:01,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:01,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:01,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:57:01,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:01,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:57:01,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:01,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-28 23:57:01,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:01,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-28 23:57:01,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:01,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-28 23:57:01,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:01,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:01,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:01,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 23:57:01,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:01,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-28 23:57:01,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:01,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:57:01,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:01,152 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2023-11-28 23:57:01,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:57:01,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896286166] [2023-11-28 23:57:01,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896286166] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:57:01,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:57:01,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-28 23:57:01,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943291082] [2023-11-28 23:57:01,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:57:01,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-28 23:57:01,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:57:01,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-28 23:57:01,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-28 23:57:01,154 INFO L87 Difference]: Start difference. First operand 874 states and 1179 transitions. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-28 23:57:05,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:57:05,464 INFO L93 Difference]: Finished difference Result 976 states and 1287 transitions. [2023-11-28 23:57:05,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-28 23:57:05,464 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 143 [2023-11-28 23:57:05,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:57:05,469 INFO L225 Difference]: With dead ends: 976 [2023-11-28 23:57:05,469 INFO L226 Difference]: Without dead ends: 974 [2023-11-28 23:57:05,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=102, Invalid=204, Unknown=0, NotChecked=0, Total=306 [2023-11-28 23:57:05,470 INFO L413 NwaCegarLoop]: 777 mSDtfsCounter, 1657 mSDsluCounter, 2252 mSDsCounter, 0 mSdLazyCounter, 2638 mSolverCounterSat, 1080 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1831 SdHoareTripleChecker+Valid, 3029 SdHoareTripleChecker+Invalid, 3718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1080 IncrementalHoareTripleChecker+Valid, 2638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-11-28 23:57:05,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1831 Valid, 3029 Invalid, 3718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1080 Valid, 2638 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-11-28 23:57:05,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states. [2023-11-28 23:57:05,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 956. [2023-11-28 23:57:05,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 956 states, 572 states have (on average 1.256993006993007) internal successors, (719), 597 states have internal predecessors, (719), 271 states have call successors, (271), 99 states have call predecessors, (271), 99 states have return successors, (273), 267 states have call predecessors, (273), 269 states have call successors, (273) [2023-11-28 23:57:05,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 956 states to 956 states and 1263 transitions. [2023-11-28 23:57:05,559 INFO L78 Accepts]: Start accepts. Automaton has 956 states and 1263 transitions. Word has length 143 [2023-11-28 23:57:05,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:57:05,559 INFO L495 AbstractCegarLoop]: Abstraction has 956 states and 1263 transitions. [2023-11-28 23:57:05,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-28 23:57:05,560 INFO L276 IsEmpty]: Start isEmpty. Operand 956 states and 1263 transitions. [2023-11-28 23:57:05,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-28 23:57:05,561 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:57:05,561 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:57:05,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-28 23:57:05,561 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-28 23:57:05,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:57:05,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1285872451, now seen corresponding path program 1 times [2023-11-28 23:57:05,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:57:05,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333475500] [2023-11-28 23:57:05,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:57:05,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:57:05,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:05,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:05,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:05,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 23:57:05,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:05,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-28 23:57:05,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:05,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-28 23:57:05,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:05,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-28 23:57:05,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:05,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-28 23:57:05,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:05,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-28 23:57:05,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:05,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:05,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:05,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-28 23:57:05,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:05,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-28 23:57:05,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:05,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-28 23:57:05,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:05,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-28 23:57:05,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:05,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-28 23:57:05,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:05,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-28 23:57:05,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:05,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-28 23:57:05,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:05,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-28 23:57:05,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:05,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-28 23:57:06,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:06,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-28 23:57:06,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:06,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-28 23:57:06,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:06,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-28 23:57:06,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:06,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-28 23:57:06,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:06,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-28 23:57:06,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:06,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-28 23:57:06,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:06,041 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 23:57:06,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:57:06,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333475500] [2023-11-28 23:57:06,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333475500] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:57:06,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:57:06,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-28 23:57:06,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667024996] [2023-11-28 23:57:06,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:57:06,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:57:06,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:57:06,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:57:06,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:57:06,044 INFO L87 Difference]: Start difference. First operand 956 states and 1263 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-28 23:57:09,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:57:09,346 INFO L93 Difference]: Finished difference Result 956 states and 1263 transitions. [2023-11-28 23:57:09,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 23:57:09,347 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 120 [2023-11-28 23:57:09,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:57:09,352 INFO L225 Difference]: With dead ends: 956 [2023-11-28 23:57:09,352 INFO L226 Difference]: Without dead ends: 954 [2023-11-28 23:57:09,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:57:09,353 INFO L413 NwaCegarLoop]: 774 mSDtfsCounter, 1346 mSDsluCounter, 1273 mSDsCounter, 0 mSdLazyCounter, 1519 mSolverCounterSat, 712 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1532 SdHoareTripleChecker+Valid, 2047 SdHoareTripleChecker+Invalid, 2231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 712 IncrementalHoareTripleChecker+Valid, 1519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-28 23:57:09,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1532 Valid, 2047 Invalid, 2231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [712 Valid, 1519 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-28 23:57:09,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2023-11-28 23:57:09,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 954. [2023-11-28 23:57:09,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 954 states, 571 states have (on average 1.25569176882662) internal successors, (717), 595 states have internal predecessors, (717), 271 states have call successors, (271), 99 states have call predecessors, (271), 99 states have return successors, (273), 267 states have call predecessors, (273), 269 states have call successors, (273) [2023-11-28 23:57:09,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1261 transitions. [2023-11-28 23:57:09,469 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1261 transitions. Word has length 120 [2023-11-28 23:57:09,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:57:09,469 INFO L495 AbstractCegarLoop]: Abstraction has 954 states and 1261 transitions. [2023-11-28 23:57:09,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-28 23:57:09,469 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1261 transitions. [2023-11-28 23:57:09,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-28 23:57:09,470 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:57:09,470 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:57:09,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-28 23:57:09,471 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-28 23:57:09,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:57:09,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1620339243, now seen corresponding path program 1 times [2023-11-28 23:57:09,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:57:09,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045842838] [2023-11-28 23:57:09,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:57:09,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:57:09,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:09,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:09,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:09,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 23:57:09,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:09,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-28 23:57:09,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:09,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-28 23:57:09,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:09,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-28 23:57:09,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:09,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-28 23:57:09,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:09,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-28 23:57:09,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:09,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:09,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:09,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-28 23:57:09,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:09,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-28 23:57:09,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:09,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-28 23:57:09,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:09,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-28 23:57:09,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:09,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-28 23:57:09,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:09,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-28 23:57:09,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:09,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-28 23:57:09,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:09,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-28 23:57:09,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:09,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-28 23:57:09,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:09,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-28 23:57:09,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:09,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-28 23:57:09,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:09,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-28 23:57:09,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:09,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-28 23:57:09,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:09,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-28 23:57:09,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:09,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-28 23:57:09,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:09,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-28 23:57:09,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:09,863 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 23:57:09,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:57:09,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045842838] [2023-11-28 23:57:09,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045842838] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:57:09,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:57:09,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-28 23:57:09,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253868036] [2023-11-28 23:57:09,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:57:09,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:57:09,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:57:09,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:57:09,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:57:09,865 INFO L87 Difference]: Start difference. First operand 954 states and 1261 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-28 23:57:12,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:57:12,942 INFO L93 Difference]: Finished difference Result 954 states and 1261 transitions. [2023-11-28 23:57:12,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 23:57:12,942 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 125 [2023-11-28 23:57:12,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:57:12,947 INFO L225 Difference]: With dead ends: 954 [2023-11-28 23:57:12,947 INFO L226 Difference]: Without dead ends: 952 [2023-11-28 23:57:12,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:57:12,948 INFO L413 NwaCegarLoop]: 774 mSDtfsCounter, 1340 mSDsluCounter, 1273 mSDsCounter, 0 mSdLazyCounter, 1515 mSolverCounterSat, 712 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1525 SdHoareTripleChecker+Valid, 2047 SdHoareTripleChecker+Invalid, 2227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 712 IncrementalHoareTripleChecker+Valid, 1515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-28 23:57:12,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1525 Valid, 2047 Invalid, 2227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [712 Valid, 1515 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-28 23:57:12,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2023-11-28 23:57:13,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 952. [2023-11-28 23:57:13,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 952 states, 570 states have (on average 1.2543859649122806) internal successors, (715), 593 states have internal predecessors, (715), 271 states have call successors, (271), 99 states have call predecessors, (271), 99 states have return successors, (273), 267 states have call predecessors, (273), 269 states have call successors, (273) [2023-11-28 23:57:13,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 952 states to 952 states and 1259 transitions. [2023-11-28 23:57:13,053 INFO L78 Accepts]: Start accepts. Automaton has 952 states and 1259 transitions. Word has length 125 [2023-11-28 23:57:13,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:57:13,053 INFO L495 AbstractCegarLoop]: Abstraction has 952 states and 1259 transitions. [2023-11-28 23:57:13,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-28 23:57:13,053 INFO L276 IsEmpty]: Start isEmpty. Operand 952 states and 1259 transitions. [2023-11-28 23:57:13,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-28 23:57:13,055 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:57:13,055 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:57:13,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-28 23:57:13,056 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-28 23:57:13,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:57:13,056 INFO L85 PathProgramCache]: Analyzing trace with hash -56843267, now seen corresponding path program 1 times [2023-11-28 23:57:13,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:57:13,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123554936] [2023-11-28 23:57:13,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:57:13,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:57:13,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:13,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:13,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:13,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 23:57:13,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:13,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-28 23:57:13,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:13,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-28 23:57:13,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:13,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-28 23:57:13,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:13,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-28 23:57:13,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:13,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-28 23:57:13,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:13,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:13,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:13,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-28 23:57:13,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:13,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-28 23:57:13,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:13,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-28 23:57:13,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:13,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-28 23:57:13,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:13,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-28 23:57:13,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:13,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-28 23:57:13,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:13,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-28 23:57:13,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:13,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-28 23:57:13,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:13,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-28 23:57:13,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:13,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-28 23:57:13,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:13,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-28 23:57:13,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:13,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-28 23:57:13,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:13,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-28 23:57:13,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:13,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-28 23:57:13,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:13,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-28 23:57:13,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:13,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-28 23:57:13,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:13,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-28 23:57:13,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:13,510 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 23:57:13,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:57:13,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123554936] [2023-11-28 23:57:13,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123554936] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:57:13,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:57:13,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-28 23:57:13,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385956987] [2023-11-28 23:57:13,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:57:13,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:57:13,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:57:13,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:57:13,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:57:13,512 INFO L87 Difference]: Start difference. First operand 952 states and 1259 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-11-28 23:57:16,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:57:16,760 INFO L93 Difference]: Finished difference Result 952 states and 1259 transitions. [2023-11-28 23:57:16,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 23:57:16,761 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 130 [2023-11-28 23:57:16,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:57:16,766 INFO L225 Difference]: With dead ends: 952 [2023-11-28 23:57:16,766 INFO L226 Difference]: Without dead ends: 950 [2023-11-28 23:57:16,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:57:16,767 INFO L413 NwaCegarLoop]: 774 mSDtfsCounter, 1334 mSDsluCounter, 1273 mSDsCounter, 0 mSdLazyCounter, 1511 mSolverCounterSat, 712 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1518 SdHoareTripleChecker+Valid, 2047 SdHoareTripleChecker+Invalid, 2223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 712 IncrementalHoareTripleChecker+Valid, 1511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-28 23:57:16,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1518 Valid, 2047 Invalid, 2223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [712 Valid, 1511 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-11-28 23:57:16,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 950 states. [2023-11-28 23:57:16,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 950 to 950. [2023-11-28 23:57:16,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 950 states, 569 states have (on average 1.2530755711775043) internal successors, (713), 591 states have internal predecessors, (713), 271 states have call successors, (271), 99 states have call predecessors, (271), 99 states have return successors, (273), 267 states have call predecessors, (273), 269 states have call successors, (273) [2023-11-28 23:57:16,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 950 states to 950 states and 1257 transitions. [2023-11-28 23:57:16,871 INFO L78 Accepts]: Start accepts. Automaton has 950 states and 1257 transitions. Word has length 130 [2023-11-28 23:57:16,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:57:16,871 INFO L495 AbstractCegarLoop]: Abstraction has 950 states and 1257 transitions. [2023-11-28 23:57:16,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-11-28 23:57:16,871 INFO L276 IsEmpty]: Start isEmpty. Operand 950 states and 1257 transitions. [2023-11-28 23:57:16,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-11-28 23:57:16,872 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:57:16,873 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 7, 4, 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] [2023-11-28 23:57:16,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-28 23:57:16,873 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-28 23:57:16,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:57:16,873 INFO L85 PathProgramCache]: Analyzing trace with hash 767967209, now seen corresponding path program 1 times [2023-11-28 23:57:16,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:57:16,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714335248] [2023-11-28 23:57:16,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:57:16,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:57:17,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:17,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:17,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:17,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 23:57:17,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:17,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-28 23:57:17,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:17,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-28 23:57:17,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:17,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-28 23:57:17,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:17,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-28 23:57:17,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:17,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-28 23:57:17,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:17,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:17,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:17,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-28 23:57:17,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:17,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-28 23:57:17,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:17,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-28 23:57:17,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:17,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-28 23:57:17,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:17,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:17,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:17,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:57:17,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:17,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:57:17,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:17,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-28 23:57:17,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:17,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:17,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:17,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:57:17,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:17,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:57:17,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:17,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-28 23:57:17,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:17,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:17,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:17,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:57:17,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:17,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:57:17,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:17,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-28 23:57:17,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:17,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-28 23:57:17,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:17,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-28 23:57:17,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:17,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:17,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:17,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 23:57:17,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:17,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-28 23:57:17,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:17,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:57:17,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:17,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-28 23:57:17,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:17,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:17,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:17,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-28 23:57:17,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:17,414 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2023-11-28 23:57:17,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:57:17,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714335248] [2023-11-28 23:57:17,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714335248] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:57:17,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:57:17,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-28 23:57:17,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747260141] [2023-11-28 23:57:17,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:57:17,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-28 23:57:17,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:57:17,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-28 23:57:17,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-28 23:57:17,416 INFO L87 Difference]: Start difference. First operand 950 states and 1257 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (29), 7 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-11-28 23:57:23,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:57:23,218 INFO L93 Difference]: Finished difference Result 974 states and 1284 transitions. [2023-11-28 23:57:23,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-28 23:57:23,218 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (29), 7 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 158 [2023-11-28 23:57:23,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:57:23,223 INFO L225 Difference]: With dead ends: 974 [2023-11-28 23:57:23,223 INFO L226 Difference]: Without dead ends: 972 [2023-11-28 23:57:23,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=119, Invalid=261, Unknown=0, NotChecked=0, Total=380 [2023-11-28 23:57:23,224 INFO L413 NwaCegarLoop]: 763 mSDtfsCounter, 1186 mSDsluCounter, 3052 mSDsCounter, 0 mSdLazyCounter, 3487 mSolverCounterSat, 1274 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1199 SdHoareTripleChecker+Valid, 3815 SdHoareTripleChecker+Invalid, 4761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1274 IncrementalHoareTripleChecker+Valid, 3487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-11-28 23:57:23,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1199 Valid, 3815 Invalid, 4761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1274 Valid, 3487 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-11-28 23:57:23,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 972 states. [2023-11-28 23:57:23,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 972 to 954. [2023-11-28 23:57:23,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 954 states, 572 states have (on average 1.2517482517482517) internal successors, (716), 594 states have internal predecessors, (716), 271 states have call successors, (271), 100 states have call predecessors, (271), 100 states have return successors, (273), 267 states have call predecessors, (273), 269 states have call successors, (273) [2023-11-28 23:57:23,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1260 transitions. [2023-11-28 23:57:23,332 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1260 transitions. Word has length 158 [2023-11-28 23:57:23,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:57:23,332 INFO L495 AbstractCegarLoop]: Abstraction has 954 states and 1260 transitions. [2023-11-28 23:57:23,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (29), 7 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-11-28 23:57:23,333 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1260 transitions. [2023-11-28 23:57:23,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-11-28 23:57:23,334 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:57:23,334 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 7, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:57:23,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-28 23:57:23,334 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-28 23:57:23,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:57:23,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1229940404, now seen corresponding path program 1 times [2023-11-28 23:57:23,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:57:23,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182596508] [2023-11-28 23:57:23,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:57:23,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:57:23,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:23,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:23,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:23,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 23:57:23,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:23,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-28 23:57:23,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:23,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-28 23:57:23,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:23,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-28 23:57:23,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:23,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-28 23:57:23,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:23,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-28 23:57:23,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:23,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:23,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:23,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-28 23:57:23,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:23,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-28 23:57:23,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:23,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-28 23:57:23,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:23,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-28 23:57:23,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:23,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:23,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:23,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:57:23,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:23,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:57:23,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:23,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-28 23:57:23,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:23,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:23,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:23,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:57:23,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:23,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:57:23,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:23,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-28 23:57:23,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:23,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:23,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:23,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:57:23,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:23,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:57:23,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:23,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-28 23:57:23,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:23,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-28 23:57:23,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:23,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-28 23:57:23,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:23,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:23,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:23,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 23:57:23,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:23,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-28 23:57:23,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:23,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:57:23,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:23,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-28 23:57:23,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:23,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:23,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:23,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-28 23:57:23,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:23,897 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2023-11-28 23:57:23,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:57:23,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182596508] [2023-11-28 23:57:23,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182596508] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:57:23,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:57:23,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-28 23:57:23,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017478579] [2023-11-28 23:57:23,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:57:23,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-28 23:57:23,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:57:23,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-28 23:57:23,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-28 23:57:23,900 INFO L87 Difference]: Start difference. First operand 954 states and 1260 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (29), 7 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-11-28 23:57:30,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:57:30,130 INFO L93 Difference]: Finished difference Result 1581 states and 2060 transitions. [2023-11-28 23:57:30,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-28 23:57:30,131 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (29), 7 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 158 [2023-11-28 23:57:30,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:57:30,140 INFO L225 Difference]: With dead ends: 1581 [2023-11-28 23:57:30,140 INFO L226 Difference]: Without dead ends: 1579 [2023-11-28 23:57:30,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=147, Invalid=315, Unknown=0, NotChecked=0, Total=462 [2023-11-28 23:57:30,141 INFO L413 NwaCegarLoop]: 1108 mSDtfsCounter, 2459 mSDsluCounter, 4096 mSDsCounter, 0 mSdLazyCounter, 3808 mSolverCounterSat, 1692 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2643 SdHoareTripleChecker+Valid, 5204 SdHoareTripleChecker+Invalid, 5500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1692 IncrementalHoareTripleChecker+Valid, 3808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-11-28 23:57:30,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2643 Valid, 5204 Invalid, 5500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1692 Valid, 3808 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-11-28 23:57:30,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1579 states. [2023-11-28 23:57:30,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1579 to 1507. [2023-11-28 23:57:30,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 918 states have (on average 1.2603485838779955) internal successors, (1157), 956 states have internal predecessors, (1157), 406 states have call successors, (406), 171 states have call predecessors, (406), 172 states have return successors, (414), 389 states have call predecessors, (414), 404 states have call successors, (414) [2023-11-28 23:57:30,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 1977 transitions. [2023-11-28 23:57:30,315 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 1977 transitions. Word has length 158 [2023-11-28 23:57:30,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:57:30,315 INFO L495 AbstractCegarLoop]: Abstraction has 1507 states and 1977 transitions. [2023-11-28 23:57:30,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (29), 7 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-11-28 23:57:30,315 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 1977 transitions. [2023-11-28 23:57:30,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-11-28 23:57:30,317 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:57:30,317 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:57:30,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-28 23:57:30,317 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-28 23:57:30,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:57:30,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1595932710, now seen corresponding path program 1 times [2023-11-28 23:57:30,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:57:30,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882852957] [2023-11-28 23:57:30,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:57:30,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:57:30,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:30,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:30,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:30,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 23:57:30,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:30,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-28 23:57:30,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:30,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-28 23:57:30,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:30,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-28 23:57:30,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:30,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-28 23:57:30,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:30,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-28 23:57:30,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:30,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:30,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:30,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-28 23:57:30,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:30,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-28 23:57:30,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:30,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-28 23:57:30,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:30,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-28 23:57:30,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:30,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-28 23:57:30,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:30,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-28 23:57:30,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:30,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-28 23:57:30,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:30,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-28 23:57:30,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:30,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-28 23:57:30,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:30,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-28 23:57:30,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:30,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-28 23:57:30,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:30,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-28 23:57:30,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:30,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-28 23:57:30,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:30,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-28 23:57:30,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:30,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-28 23:57:30,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:30,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-28 23:57:30,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:30,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-28 23:57:30,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:30,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-28 23:57:30,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:30,627 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 23:57:30,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:57:30,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882852957] [2023-11-28 23:57:30,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882852957] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:57:30,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:57:30,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-28 23:57:30,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108985014] [2023-11-28 23:57:30,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:57:30,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:57:30,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:57:30,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:57:30,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:57:30,629 INFO L87 Difference]: Start difference. First operand 1507 states and 1977 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-11-28 23:57:33,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:57:33,778 INFO L93 Difference]: Finished difference Result 1507 states and 1977 transitions. [2023-11-28 23:57:33,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 23:57:33,778 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 135 [2023-11-28 23:57:33,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:57:33,784 INFO L225 Difference]: With dead ends: 1507 [2023-11-28 23:57:33,784 INFO L226 Difference]: Without dead ends: 1505 [2023-11-28 23:57:33,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:57:33,785 INFO L413 NwaCegarLoop]: 774 mSDtfsCounter, 1328 mSDsluCounter, 1273 mSDsCounter, 0 mSdLazyCounter, 1507 mSolverCounterSat, 712 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1511 SdHoareTripleChecker+Valid, 2047 SdHoareTripleChecker+Invalid, 2219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 712 IncrementalHoareTripleChecker+Valid, 1507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-28 23:57:33,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1511 Valid, 2047 Invalid, 2219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [712 Valid, 1507 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-28 23:57:33,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1505 states. [2023-11-28 23:57:33,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1505 to 1505. [2023-11-28 23:57:33,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1505 states, 917 states have (on average 1.2584514721919302) internal successors, (1154), 954 states have internal predecessors, (1154), 406 states have call successors, (406), 171 states have call predecessors, (406), 172 states have return successors, (414), 389 states have call predecessors, (414), 404 states have call successors, (414) [2023-11-28 23:57:33,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 1974 transitions. [2023-11-28 23:57:33,980 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 1974 transitions. Word has length 135 [2023-11-28 23:57:33,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:57:33,980 INFO L495 AbstractCegarLoop]: Abstraction has 1505 states and 1974 transitions. [2023-11-28 23:57:33,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-11-28 23:57:33,980 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 1974 transitions. [2023-11-28 23:57:33,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-11-28 23:57:33,982 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:57:33,982 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2023-11-28 23:57:33,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-28 23:57:33,982 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-28 23:57:33,982 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:57:33,982 INFO L85 PathProgramCache]: Analyzing trace with hash 46982828, now seen corresponding path program 1 times [2023-11-28 23:57:33,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:57:33,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880637423] [2023-11-28 23:57:33,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:57:33,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:57:34,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:34,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:34,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:34,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 23:57:34,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:34,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-28 23:57:34,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:34,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-28 23:57:34,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:34,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-28 23:57:34,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:34,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:34,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:34,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:57:34,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:34,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:57:34,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:34,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-28 23:57:34,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:34,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:34,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:34,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:57:34,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:34,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:57:34,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:34,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-28 23:57:34,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:34,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:34,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:34,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:57:34,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:34,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:57:34,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:34,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-28 23:57:34,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:34,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:34,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:34,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:57:34,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:34,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:57:34,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:34,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-28 23:57:34,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:34,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:34,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:34,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:57:34,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:34,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:57:34,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:34,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-28 23:57:34,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:34,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-28 23:57:34,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:34,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-28 23:57:34,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:34,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:34,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:34,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:34,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:34,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:34,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:34,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-28 23:57:34,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:34,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-28 23:57:34,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:34,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:34,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:34,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-28 23:57:34,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:34,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-11-28 23:57:34,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:34,317 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2023-11-28 23:57:34,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:57:34,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880637423] [2023-11-28 23:57:34,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880637423] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:57:34,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:57:34,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-28 23:57:34,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957371652] [2023-11-28 23:57:34,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:57:34,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:57:34,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:57:34,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:57:34,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:57:34,319 INFO L87 Difference]: Start difference. First operand 1505 states and 1974 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (23), 4 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-28 23:57:37,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:57:37,289 INFO L93 Difference]: Finished difference Result 2880 states and 3754 transitions. [2023-11-28 23:57:37,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 23:57:37,290 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (23), 4 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 165 [2023-11-28 23:57:37,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:57:37,299 INFO L225 Difference]: With dead ends: 2880 [2023-11-28 23:57:37,299 INFO L226 Difference]: Without dead ends: 1513 [2023-11-28 23:57:37,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-28 23:57:37,302 INFO L413 NwaCegarLoop]: 560 mSDtfsCounter, 1587 mSDsluCounter, 1043 mSDsCounter, 0 mSdLazyCounter, 1425 mSolverCounterSat, 1026 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1795 SdHoareTripleChecker+Valid, 1603 SdHoareTripleChecker+Invalid, 2451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1026 IncrementalHoareTripleChecker+Valid, 1425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-28 23:57:37,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1795 Valid, 1603 Invalid, 2451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1026 Valid, 1425 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-28 23:57:37,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2023-11-28 23:57:37,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1501. [2023-11-28 23:57:37,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1501 states, 914 states have (on average 1.2571115973741793) internal successors, (1149), 950 states have internal predecessors, (1149), 406 states have call successors, (406), 171 states have call predecessors, (406), 172 states have return successors, (414), 389 states have call predecessors, (414), 404 states have call successors, (414) [2023-11-28 23:57:37,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1501 states to 1501 states and 1969 transitions. [2023-11-28 23:57:37,522 INFO L78 Accepts]: Start accepts. Automaton has 1501 states and 1969 transitions. Word has length 165 [2023-11-28 23:57:37,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:57:37,523 INFO L495 AbstractCegarLoop]: Abstraction has 1501 states and 1969 transitions. [2023-11-28 23:57:37,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (23), 4 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-28 23:57:37,523 INFO L276 IsEmpty]: Start isEmpty. Operand 1501 states and 1969 transitions. [2023-11-28 23:57:37,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-11-28 23:57:37,524 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:57:37,524 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:57:37,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-28 23:57:37,525 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-28 23:57:37,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:57:37,525 INFO L85 PathProgramCache]: Analyzing trace with hash -600730122, now seen corresponding path program 1 times [2023-11-28 23:57:37,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:57:37,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835432470] [2023-11-28 23:57:37,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:57:37,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:57:37,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:37,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:37,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:37,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 23:57:37,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:37,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-28 23:57:37,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:37,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-28 23:57:37,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:37,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-28 23:57:37,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:37,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-28 23:57:37,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:37,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-28 23:57:37,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:37,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:37,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:37,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-28 23:57:37,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:37,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-28 23:57:37,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:37,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-28 23:57:37,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:37,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-28 23:57:37,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:37,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-28 23:57:37,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:37,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-28 23:57:37,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:37,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-28 23:57:37,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:37,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-28 23:57:37,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:37,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-28 23:57:37,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:37,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-28 23:57:37,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:37,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-28 23:57:37,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:37,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-28 23:57:37,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:37,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-28 23:57:37,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:37,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-28 23:57:37,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:37,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-28 23:57:37,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:37,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-28 23:57:37,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:37,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-28 23:57:37,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:37,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-28 23:57:37,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:37,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-28 23:57:37,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:37,861 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 23:57:37,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:57:37,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835432470] [2023-11-28 23:57:37,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835432470] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:57:37,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:57:37,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-28 23:57:37,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784441653] [2023-11-28 23:57:37,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:57:37,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:57:37,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:57:37,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:57:37,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:57:37,863 INFO L87 Difference]: Start difference. First operand 1501 states and 1969 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-11-28 23:57:40,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:57:40,760 INFO L93 Difference]: Finished difference Result 1501 states and 1969 transitions. [2023-11-28 23:57:40,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 23:57:40,760 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (28), 4 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 140 [2023-11-28 23:57:40,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:57:40,768 INFO L225 Difference]: With dead ends: 1501 [2023-11-28 23:57:40,768 INFO L226 Difference]: Without dead ends: 1499 [2023-11-28 23:57:40,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:57:40,769 INFO L413 NwaCegarLoop]: 769 mSDtfsCounter, 1317 mSDsluCounter, 1259 mSDsCounter, 0 mSdLazyCounter, 1502 mSolverCounterSat, 712 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1499 SdHoareTripleChecker+Valid, 2028 SdHoareTripleChecker+Invalid, 2214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 712 IncrementalHoareTripleChecker+Valid, 1502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-28 23:57:40,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1499 Valid, 2028 Invalid, 2214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [712 Valid, 1502 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-28 23:57:40,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1499 states. [2023-11-28 23:57:40,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1499 to 1499. [2023-11-28 23:57:40,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1499 states, 913 states have (on average 1.2552026286966047) internal successors, (1146), 948 states have internal predecessors, (1146), 406 states have call successors, (406), 171 states have call predecessors, (406), 172 states have return successors, (414), 389 states have call predecessors, (414), 404 states have call successors, (414) [2023-11-28 23:57:40,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1499 states to 1499 states and 1966 transitions. [2023-11-28 23:57:40,958 INFO L78 Accepts]: Start accepts. Automaton has 1499 states and 1966 transitions. Word has length 140 [2023-11-28 23:57:40,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:57:40,959 INFO L495 AbstractCegarLoop]: Abstraction has 1499 states and 1966 transitions. [2023-11-28 23:57:40,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-11-28 23:57:40,959 INFO L276 IsEmpty]: Start isEmpty. Operand 1499 states and 1966 transitions. [2023-11-28 23:57:40,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-11-28 23:57:40,960 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:57:40,960 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2023-11-28 23:57:40,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-28 23:57:40,960 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-28 23:57:40,961 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:57:40,961 INFO L85 PathProgramCache]: Analyzing trace with hash -631690304, now seen corresponding path program 1 times [2023-11-28 23:57:40,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:57:40,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714747616] [2023-11-28 23:57:40,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:57:40,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:57:41,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:41,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:41,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:41,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 23:57:41,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:41,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-28 23:57:41,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:41,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-28 23:57:41,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:41,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-28 23:57:41,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:41,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:41,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:41,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:57:41,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:41,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:57:41,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:41,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-28 23:57:41,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:41,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:41,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:41,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:57:41,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:41,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:57:41,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:41,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-28 23:57:41,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:41,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:41,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:41,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:57:41,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:41,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:57:41,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:41,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-28 23:57:41,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:41,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:41,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:41,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:57:41,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:41,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:57:41,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:41,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-28 23:57:41,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:41,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:41,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:41,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:57:41,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:41,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:57:41,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:41,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-28 23:57:41,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:41,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-28 23:57:41,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:41,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-28 23:57:41,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:41,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:41,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:41,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:41,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:41,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:41,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:41,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-28 23:57:41,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:41,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-28 23:57:41,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:41,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:41,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:41,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-28 23:57:41,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:41,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-11-28 23:57:41,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:41,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-11-28 23:57:41,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:41,313 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2023-11-28 23:57:41,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:57:41,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714747616] [2023-11-28 23:57:41,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714747616] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:57:41,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1433815094] [2023-11-28 23:57:41,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:57:41,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:57:41,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:57:41,315 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:57:41,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-28 23:57:42,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:42,068 INFO L262 TraceCheckSpWp]: Trace formula consists of 1983 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-28 23:57:42,079 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:57:42,159 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2023-11-28 23:57:42,159 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:57:42,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1433815094] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:57:42,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:57:42,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-11-28 23:57:42,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9837989] [2023-11-28 23:57:42,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:57:42,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:57:42,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:57:42,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:57:42,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:57:42,161 INFO L87 Difference]: Start difference. First operand 1499 states and 1966 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-28 23:57:42,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:57:42,849 INFO L93 Difference]: Finished difference Result 2900 states and 3776 transitions. [2023-11-28 23:57:42,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:57:42,850 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 170 [2023-11-28 23:57:42,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:57:42,855 INFO L225 Difference]: With dead ends: 2900 [2023-11-28 23:57:42,855 INFO L226 Difference]: Without dead ends: 1542 [2023-11-28 23:57:42,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:57:42,858 INFO L413 NwaCegarLoop]: 1089 mSDtfsCounter, 1097 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1097 SdHoareTripleChecker+Valid, 1140 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-28 23:57:42,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1097 Valid, 1140 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-28 23:57:42,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1542 states. [2023-11-28 23:57:43,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1542 to 1539. [2023-11-28 23:57:43,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1539 states, 933 states have (on average 1.2508038585209003) internal successors, (1167), 971 states have internal predecessors, (1167), 421 states have call successors, (421), 177 states have call predecessors, (421), 178 states have return successors, (429), 402 states have call predecessors, (429), 419 states have call successors, (429) [2023-11-28 23:57:43,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1539 states to 1539 states and 2017 transitions. [2023-11-28 23:57:43,070 INFO L78 Accepts]: Start accepts. Automaton has 1539 states and 2017 transitions. Word has length 170 [2023-11-28 23:57:43,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:57:43,071 INFO L495 AbstractCegarLoop]: Abstraction has 1539 states and 2017 transitions. [2023-11-28 23:57:43,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-28 23:57:43,071 INFO L276 IsEmpty]: Start isEmpty. Operand 1539 states and 2017 transitions. [2023-11-28 23:57:43,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-28 23:57:43,073 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:57:43,073 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:57:43,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-28 23:57:43,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:57:43,274 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-28 23:57:43,274 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:57:43,274 INFO L85 PathProgramCache]: Analyzing trace with hash 557149507, now seen corresponding path program 1 times [2023-11-28 23:57:43,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:57:43,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642353430] [2023-11-28 23:57:43,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:57:43,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:57:43,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:43,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:43,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:43,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 23:57:43,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:43,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-28 23:57:43,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:43,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-28 23:57:43,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:43,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-28 23:57:43,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:43,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-28 23:57:43,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:43,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-28 23:57:43,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:43,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:43,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:43,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-28 23:57:43,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:43,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-28 23:57:43,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:43,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-28 23:57:43,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:43,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-28 23:57:43,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:43,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-28 23:57:43,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:43,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-28 23:57:43,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:43,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-28 23:57:43,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:43,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-28 23:57:43,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:43,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-28 23:57:43,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:43,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-28 23:57:43,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:43,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-28 23:57:43,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:43,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-28 23:57:43,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:43,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-28 23:57:43,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:43,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-28 23:57:43,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:43,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-28 23:57:43,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:43,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-28 23:57:43,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:43,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-28 23:57:43,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:43,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-28 23:57:43,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:43,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-28 23:57:43,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:43,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-11-28 23:57:43,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:43,620 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 23:57:43,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:57:43,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642353430] [2023-11-28 23:57:43,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642353430] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:57:43,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:57:43,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-28 23:57:43,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464257263] [2023-11-28 23:57:43,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:57:43,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:57:43,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:57:43,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:57:43,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:57:43,622 INFO L87 Difference]: Start difference. First operand 1539 states and 2017 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-11-28 23:57:46,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:57:46,828 INFO L93 Difference]: Finished difference Result 1539 states and 2017 transitions. [2023-11-28 23:57:46,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 23:57:46,828 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (29), 4 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 145 [2023-11-28 23:57:46,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:57:46,832 INFO L225 Difference]: With dead ends: 1539 [2023-11-28 23:57:46,832 INFO L226 Difference]: Without dead ends: 1537 [2023-11-28 23:57:46,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:57:46,833 INFO L413 NwaCegarLoop]: 764 mSDtfsCounter, 1306 mSDsluCounter, 1245 mSDsCounter, 0 mSdLazyCounter, 1497 mSolverCounterSat, 712 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1487 SdHoareTripleChecker+Valid, 2009 SdHoareTripleChecker+Invalid, 2209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 712 IncrementalHoareTripleChecker+Valid, 1497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-28 23:57:46,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1487 Valid, 2009 Invalid, 2209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [712 Valid, 1497 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-28 23:57:46,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1537 states. [2023-11-28 23:57:47,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1537 to 1537. [2023-11-28 23:57:47,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1537 states, 932 states have (on average 1.2489270386266094) internal successors, (1164), 969 states have internal predecessors, (1164), 421 states have call successors, (421), 177 states have call predecessors, (421), 178 states have return successors, (429), 402 states have call predecessors, (429), 419 states have call successors, (429) [2023-11-28 23:57:47,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1537 states to 1537 states and 2014 transitions. [2023-11-28 23:57:47,040 INFO L78 Accepts]: Start accepts. Automaton has 1537 states and 2014 transitions. Word has length 145 [2023-11-28 23:57:47,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:57:47,040 INFO L495 AbstractCegarLoop]: Abstraction has 1537 states and 2014 transitions. [2023-11-28 23:57:47,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-11-28 23:57:47,040 INFO L276 IsEmpty]: Start isEmpty. Operand 1537 states and 2014 transitions. [2023-11-28 23:57:47,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-28 23:57:47,042 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:57:47,042 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:57:47,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-11-28 23:57:47,043 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-28 23:57:47,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:57:47,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1316281858, now seen corresponding path program 1 times [2023-11-28 23:57:47,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:57:47,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769349379] [2023-11-28 23:57:47,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:57:47,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:57:47,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:47,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:47,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:47,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 23:57:47,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:47,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-28 23:57:47,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:47,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-28 23:57:47,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:47,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-28 23:57:47,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:47,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-28 23:57:47,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:47,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-28 23:57:47,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:47,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:47,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:47,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-28 23:57:47,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:47,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-28 23:57:47,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:47,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-28 23:57:47,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:47,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-28 23:57:47,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:47,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-28 23:57:47,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:47,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-28 23:57:47,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:47,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-28 23:57:47,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:47,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-28 23:57:47,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:47,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-28 23:57:47,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:47,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-28 23:57:47,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:47,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-28 23:57:47,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:47,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-28 23:57:47,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:47,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-28 23:57:47,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:47,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-28 23:57:47,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:47,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-28 23:57:47,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:47,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-28 23:57:47,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:47,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-28 23:57:47,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:47,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-28 23:57:47,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:47,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-28 23:57:47,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:47,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-11-28 23:57:47,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:47,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-28 23:57:47,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:47,387 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 23:57:47,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:57:47,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769349379] [2023-11-28 23:57:47,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769349379] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:57:47,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:57:47,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-28 23:57:47,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337041258] [2023-11-28 23:57:47,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:57:47,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:57:47,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:57:47,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:57:47,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:57:47,389 INFO L87 Difference]: Start difference. First operand 1537 states and 2014 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2023-11-28 23:57:51,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:57:51,799 INFO L93 Difference]: Finished difference Result 2963 states and 3878 transitions. [2023-11-28 23:57:51,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-28 23:57:51,799 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 150 [2023-11-28 23:57:51,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:57:51,807 INFO L225 Difference]: With dead ends: 2963 [2023-11-28 23:57:51,807 INFO L226 Difference]: Without dead ends: 2734 [2023-11-28 23:57:51,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-11-28 23:57:51,810 INFO L413 NwaCegarLoop]: 868 mSDtfsCounter, 1721 mSDsluCounter, 1900 mSDsCounter, 0 mSdLazyCounter, 2308 mSolverCounterSat, 1165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1896 SdHoareTripleChecker+Valid, 2768 SdHoareTripleChecker+Invalid, 3473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1165 IncrementalHoareTripleChecker+Valid, 2308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-11-28 23:57:51,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1896 Valid, 2768 Invalid, 3473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1165 Valid, 2308 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-11-28 23:57:51,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2734 states. [2023-11-28 23:57:52,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2734 to 2720. [2023-11-28 23:57:52,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2720 states, 1666 states have (on average 1.265906362545018) internal successors, (2109), 1726 states have internal predecessors, (2109), 737 states have call successors, (737), 308 states have call predecessors, (737), 311 states have return successors, (765), 705 states have call predecessors, (765), 735 states have call successors, (765) [2023-11-28 23:57:52,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2720 states to 2720 states and 3611 transitions. [2023-11-28 23:57:52,228 INFO L78 Accepts]: Start accepts. Automaton has 2720 states and 3611 transitions. Word has length 150 [2023-11-28 23:57:52,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:57:52,228 INFO L495 AbstractCegarLoop]: Abstraction has 2720 states and 3611 transitions. [2023-11-28 23:57:52,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2023-11-28 23:57:52,228 INFO L276 IsEmpty]: Start isEmpty. Operand 2720 states and 3611 transitions. [2023-11-28 23:57:52,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-11-28 23:57:52,230 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:57:52,230 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2023-11-28 23:57:52,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-11-28 23:57:52,230 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-28 23:57:52,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:57:52,230 INFO L85 PathProgramCache]: Analyzing trace with hash -376853394, now seen corresponding path program 1 times [2023-11-28 23:57:52,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:57:52,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196671639] [2023-11-28 23:57:52,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:57:52,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:57:52,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:52,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:52,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:52,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 23:57:52,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:52,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-28 23:57:52,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:52,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-28 23:57:52,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:52,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-28 23:57:52,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:52,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:52,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:52,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:57:52,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:52,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:57:52,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:52,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-28 23:57:52,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:52,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:52,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:52,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:57:52,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:52,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:57:52,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:52,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-28 23:57:52,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:52,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:53,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:53,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:57:53,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:53,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:57:53,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:53,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-28 23:57:53,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:53,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:53,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:53,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:57:53,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:53,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:57:53,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:53,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-28 23:57:53,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:53,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:53,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:53,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:57:53,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:53,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:57:53,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:53,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-28 23:57:53,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:53,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-28 23:57:53,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:53,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-28 23:57:53,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:53,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:53,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:53,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:53,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:53,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:53,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:53,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-28 23:57:53,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:53,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-28 23:57:53,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:53,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:57:53,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:53,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-28 23:57:53,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:53,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-11-28 23:57:53,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:53,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-11-28 23:57:53,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:53,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-11-28 23:57:53,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:53,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-28 23:57:53,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:53,186 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2023-11-28 23:57:53,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:57:53,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196671639] [2023-11-28 23:57:53,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196671639] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:57:53,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:57:53,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-28 23:57:53,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275080409] [2023-11-28 23:57:53,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:57:53,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-28 23:57:53,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:57:53,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-28 23:57:53,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-11-28 23:57:53,188 INFO L87 Difference]: Start difference. First operand 2720 states and 3611 transitions. Second operand has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (26), 5 states have call predecessors, (26), 3 states have call successors, (26) [2023-11-28 23:58:01,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:58:01,674 INFO L93 Difference]: Finished difference Result 5491 states and 7307 transitions. [2023-11-28 23:58:01,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-28 23:58:01,675 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (26), 5 states have call predecessors, (26), 3 states have call successors, (26) Word has length 184 [2023-11-28 23:58:01,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:58:01,681 INFO L225 Difference]: With dead ends: 5491 [2023-11-28 23:58:01,682 INFO L226 Difference]: Without dead ends: 2852 [2023-11-28 23:58:01,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=390, Unknown=0, NotChecked=0, Total=506 [2023-11-28 23:58:01,688 INFO L413 NwaCegarLoop]: 763 mSDtfsCounter, 982 mSDsluCounter, 4605 mSDsCounter, 0 mSdLazyCounter, 5208 mSolverCounterSat, 1275 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 985 SdHoareTripleChecker+Valid, 5368 SdHoareTripleChecker+Invalid, 6483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1275 IncrementalHoareTripleChecker+Valid, 5208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2023-11-28 23:58:01,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [985 Valid, 5368 Invalid, 6483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1275 Valid, 5208 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2023-11-28 23:58:01,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2023-11-28 23:58:02,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 2730. [2023-11-28 23:58:02,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2730 states, 1672 states have (on average 1.2649521531100478) internal successors, (2115), 1731 states have internal predecessors, (2115), 739 states have call successors, (739), 308 states have call predecessors, (739), 313 states have return successors, (772), 709 states have call predecessors, (772), 737 states have call successors, (772) [2023-11-28 23:58:02,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2730 states to 2730 states and 3626 transitions. [2023-11-28 23:58:02,148 INFO L78 Accepts]: Start accepts. Automaton has 2730 states and 3626 transitions. Word has length 184 [2023-11-28 23:58:02,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:58:02,148 INFO L495 AbstractCegarLoop]: Abstraction has 2730 states and 3626 transitions. [2023-11-28 23:58:02,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (26), 5 states have call predecessors, (26), 3 states have call successors, (26) [2023-11-28 23:58:02,149 INFO L276 IsEmpty]: Start isEmpty. Operand 2730 states and 3626 transitions. [2023-11-28 23:58:02,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2023-11-28 23:58:02,151 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:58:02,151 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 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] [2023-11-28 23:58:02,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-11-28 23:58:02,152 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-28 23:58:02,152 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:58:02,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1734691278, now seen corresponding path program 1 times [2023-11-28 23:58:02,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:58:02,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874227662] [2023-11-28 23:58:02,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:58:02,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:58:02,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:02,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:02,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:02,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 23:58:02,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:02,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-28 23:58:02,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:02,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-28 23:58:02,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:02,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-28 23:58:02,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:02,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-28 23:58:02,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:02,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-28 23:58:02,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:02,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:02,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:02,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-28 23:58:02,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:02,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-28 23:58:02,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:02,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-28 23:58:02,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:02,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-28 23:58:02,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:02,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:02,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:02,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:58:02,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:02,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:58:02,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:02,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-28 23:58:02,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:02,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:02,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:02,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:58:02,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:02,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:58:02,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:02,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-28 23:58:02,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:02,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:02,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:02,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:58:02,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:02,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:58:02,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:02,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-28 23:58:02,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:02,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-28 23:58:02,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:02,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-28 23:58:02,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:02,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:02,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:02,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-28 23:58:02,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:02,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-28 23:58:02,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:02,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:02,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:02,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-28 23:58:02,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:02,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-28 23:58:02,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:02,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-28 23:58:02,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:02,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-11-28 23:58:02,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:02,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:02,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:02,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-11-28 23:58:02,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:02,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:02,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:02,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 23:58:02,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:02,878 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 323 trivial. 0 not checked. [2023-11-28 23:58:02,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:58:02,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874227662] [2023-11-28 23:58:02,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874227662] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:58:02,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:58:02,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-28 23:58:02,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055377919] [2023-11-28 23:58:02,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:58:02,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-28 23:58:02,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:58:02,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-28 23:58:02,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:58:02,880 INFO L87 Difference]: Start difference. First operand 2730 states and 3626 transitions. Second operand has 10 states, 10 states have (on average 6.6) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (33), 8 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2023-11-28 23:58:10,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:58:10,563 INFO L93 Difference]: Finished difference Result 2851 states and 3762 transitions. [2023-11-28 23:58:10,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-28 23:58:10,564 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (33), 8 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) Word has length 188 [2023-11-28 23:58:10,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:58:10,569 INFO L225 Difference]: With dead ends: 2851 [2023-11-28 23:58:10,569 INFO L226 Difference]: Without dead ends: 2849 [2023-11-28 23:58:10,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=181, Invalid=419, Unknown=0, NotChecked=0, Total=600 [2023-11-28 23:58:10,570 INFO L413 NwaCegarLoop]: 750 mSDtfsCounter, 2146 mSDsluCounter, 3607 mSDsCounter, 0 mSdLazyCounter, 4404 mSolverCounterSat, 2094 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2254 SdHoareTripleChecker+Valid, 4357 SdHoareTripleChecker+Invalid, 6498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2094 IncrementalHoareTripleChecker+Valid, 4404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2023-11-28 23:58:10,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2254 Valid, 4357 Invalid, 6498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2094 Valid, 4404 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2023-11-28 23:58:10,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2849 states. [2023-11-28 23:58:10,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2849 to 2820. [2023-11-28 23:58:10,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2820 states, 1732 states have (on average 1.2569284064665127) internal successors, (2177), 1785 states have internal predecessors, (2177), 757 states have call successors, (757), 320 states have call predecessors, (757), 325 states have return successors, (790), 733 states have call predecessors, (790), 755 states have call successors, (790) [2023-11-28 23:58:11,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2820 states to 2820 states and 3724 transitions. [2023-11-28 23:58:11,001 INFO L78 Accepts]: Start accepts. Automaton has 2820 states and 3724 transitions. Word has length 188 [2023-11-28 23:58:11,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:58:11,001 INFO L495 AbstractCegarLoop]: Abstraction has 2820 states and 3724 transitions. [2023-11-28 23:58:11,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (33), 8 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2023-11-28 23:58:11,002 INFO L276 IsEmpty]: Start isEmpty. Operand 2820 states and 3724 transitions. [2023-11-28 23:58:11,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2023-11-28 23:58:11,004 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:58:11,004 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 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] [2023-11-28 23:58:11,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-11-28 23:58:11,004 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-28 23:58:11,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:58:11,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1441288271, now seen corresponding path program 1 times [2023-11-28 23:58:11,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:58:11,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602385148] [2023-11-28 23:58:11,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:58:11,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:58:11,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:11,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 23:58:11,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-28 23:58:11,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-28 23:58:11,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-28 23:58:11,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-28 23:58:11,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-28 23:58:11,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:11,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-28 23:58:11,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-28 23:58:11,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-28 23:58:11,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-28 23:58:11,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:11,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:58:11,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:58:11,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-28 23:58:11,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:11,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:58:11,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:58:11,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-28 23:58:11,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:11,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:58:11,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:58:11,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-28 23:58:11,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-28 23:58:11,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-28 23:58:11,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:11,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-28 23:58:11,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-28 23:58:11,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:11,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-28 23:58:11,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-28 23:58:11,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-28 23:58:11,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-11-28 23:58:11,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:11,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-11-28 23:58:11,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:11,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 23:58:11,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:11,397 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 323 trivial. 0 not checked. [2023-11-28 23:58:11,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:58:11,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602385148] [2023-11-28 23:58:11,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602385148] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:58:11,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:58:11,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-28 23:58:11,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940767190] [2023-11-28 23:58:11,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:58:11,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-28 23:58:11,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:58:11,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-28 23:58:11,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:58:11,400 INFO L87 Difference]: Start difference. First operand 2820 states and 3724 transitions. Second operand has 10 states, 10 states have (on average 6.6) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (33), 7 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2023-11-28 23:58:17,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:58:17,808 INFO L93 Difference]: Finished difference Result 5029 states and 6588 transitions. [2023-11-28 23:58:17,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-28 23:58:17,808 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (33), 7 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) Word has length 188 [2023-11-28 23:58:17,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:58:17,816 INFO L225 Difference]: With dead ends: 5029 [2023-11-28 23:58:17,816 INFO L226 Difference]: Without dead ends: 2766 [2023-11-28 23:58:17,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2023-11-28 23:58:17,821 INFO L413 NwaCegarLoop]: 773 mSDtfsCounter, 1191 mSDsluCounter, 3398 mSDsCounter, 0 mSdLazyCounter, 3627 mSolverCounterSat, 1527 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1192 SdHoareTripleChecker+Valid, 4171 SdHoareTripleChecker+Invalid, 5154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1527 IncrementalHoareTripleChecker+Valid, 3627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-11-28 23:58:17,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1192 Valid, 4171 Invalid, 5154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1527 Valid, 3627 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2023-11-28 23:58:17,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2766 states. [2023-11-28 23:58:18,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2766 to 2730. [2023-11-28 23:58:18,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2730 states, 1678 states have (on average 1.2520858164481525) internal successors, (2101), 1727 states have internal predecessors, (2101), 735 states have call successors, (735), 302 states have call predecessors, (735), 311 states have return successors, (772), 719 states have call predecessors, (772), 733 states have call successors, (772) [2023-11-28 23:58:18,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2730 states to 2730 states and 3608 transitions. [2023-11-28 23:58:18,223 INFO L78 Accepts]: Start accepts. Automaton has 2730 states and 3608 transitions. Word has length 188 [2023-11-28 23:58:18,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:58:18,224 INFO L495 AbstractCegarLoop]: Abstraction has 2730 states and 3608 transitions. [2023-11-28 23:58:18,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (33), 7 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2023-11-28 23:58:18,224 INFO L276 IsEmpty]: Start isEmpty. Operand 2730 states and 3608 transitions. [2023-11-28 23:58:18,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-11-28 23:58:18,226 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:58:18,226 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2023-11-28 23:58:18,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-11-28 23:58:18,226 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-28 23:58:18,226 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:58:18,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1524695859, now seen corresponding path program 1 times [2023-11-28 23:58:18,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:58:18,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102955622] [2023-11-28 23:58:18,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:58:18,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:58:18,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:19,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:19,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:19,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 23:58:19,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:19,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-28 23:58:19,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:19,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-28 23:58:19,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:19,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-28 23:58:19,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:19,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:19,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:19,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:58:19,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:19,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:58:19,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:19,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-28 23:58:19,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:19,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:19,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:19,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:58:19,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:19,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:58:19,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:19,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-28 23:58:19,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:19,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:19,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:19,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:58:19,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:19,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:58:19,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:19,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-28 23:58:19,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:19,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:19,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:19,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:58:19,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:19,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:58:19,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:19,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-28 23:58:19,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:19,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:19,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:19,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:58:19,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:19,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:58:19,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:19,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-28 23:58:19,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:19,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-28 23:58:19,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:19,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-28 23:58:19,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:19,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:19,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:19,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:19,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:19,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:19,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:19,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-28 23:58:19,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:19,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-28 23:58:19,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:19,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:19,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:19,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 23:58:19,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:19,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-28 23:58:19,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:19,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:58:19,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:19,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-28 23:58:19,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:19,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-11-28 23:58:19,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:19,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-28 23:58:19,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:19,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-28 23:58:19,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:19,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-11-28 23:58:19,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:20,027 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2023-11-28 23:58:20,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:58:20,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102955622] [2023-11-28 23:58:20,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102955622] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:58:20,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:58:20,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-11-28 23:58:20,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47112871] [2023-11-28 23:58:20,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:58:20,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-28 23:58:20,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:58:20,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-28 23:58:20,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2023-11-28 23:58:20,030 INFO L87 Difference]: Start difference. First operand 2730 states and 3608 transitions. Second operand has 18 states, 16 states have (on average 4.1875) internal successors, (67), 11 states have internal predecessors, (67), 6 states have call successors, (31), 7 states have call predecessors, (31), 4 states have return successors, (29), 7 states have call predecessors, (29), 5 states have call successors, (29) [2023-11-28 23:58:34,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:58:34,792 INFO L93 Difference]: Finished difference Result 5399 states and 7124 transitions. [2023-11-28 23:58:34,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-28 23:58:34,792 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 4.1875) internal successors, (67), 11 states have internal predecessors, (67), 6 states have call successors, (31), 7 states have call predecessors, (31), 4 states have return successors, (29), 7 states have call predecessors, (29), 5 states have call successors, (29) Word has length 197 [2023-11-28 23:58:34,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:58:34,801 INFO L225 Difference]: With dead ends: 5399 [2023-11-28 23:58:34,802 INFO L226 Difference]: Without dead ends: 2922 [2023-11-28 23:58:34,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 312 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=273, Invalid=1449, Unknown=0, NotChecked=0, Total=1722 [2023-11-28 23:58:34,809 INFO L413 NwaCegarLoop]: 750 mSDtfsCounter, 1153 mSDsluCounter, 7159 mSDsCounter, 0 mSdLazyCounter, 8652 mSolverCounterSat, 1341 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1190 SdHoareTripleChecker+Valid, 7909 SdHoareTripleChecker+Invalid, 9993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1341 IncrementalHoareTripleChecker+Valid, 8652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2023-11-28 23:58:34,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1190 Valid, 7909 Invalid, 9993 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1341 Valid, 8652 Invalid, 0 Unknown, 0 Unchecked, 13.5s Time] [2023-11-28 23:58:34,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2922 states. [2023-11-28 23:58:35,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2922 to 2766. [2023-11-28 23:58:35,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2766 states, 1696 states have (on average 1.2494103773584906) internal successors, (2119), 1747 states have internal predecessors, (2119), 749 states have call successors, (749), 304 states have call predecessors, (749), 315 states have return successors, (790), 733 states have call predecessors, (790), 747 states have call successors, (790) [2023-11-28 23:58:35,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2766 states to 2766 states and 3658 transitions. [2023-11-28 23:58:35,429 INFO L78 Accepts]: Start accepts. Automaton has 2766 states and 3658 transitions. Word has length 197 [2023-11-28 23:58:35,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:58:35,430 INFO L495 AbstractCegarLoop]: Abstraction has 2766 states and 3658 transitions. [2023-11-28 23:58:35,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 4.1875) internal successors, (67), 11 states have internal predecessors, (67), 6 states have call successors, (31), 7 states have call predecessors, (31), 4 states have return successors, (29), 7 states have call predecessors, (29), 5 states have call successors, (29) [2023-11-28 23:58:35,430 INFO L276 IsEmpty]: Start isEmpty. Operand 2766 states and 3658 transitions. [2023-11-28 23:58:35,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-11-28 23:58:35,432 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:58:35,432 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:58:35,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-11-28 23:58:35,433 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-28 23:58:35,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:58:35,433 INFO L85 PathProgramCache]: Analyzing trace with hash -789951704, now seen corresponding path program 1 times [2023-11-28 23:58:35,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:58:35,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89623252] [2023-11-28 23:58:35,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:58:35,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:58:35,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:35,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 23:58:35,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-28 23:58:35,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-28 23:58:35,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-28 23:58:35,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-28 23:58:35,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-28 23:58:35,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:35,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-28 23:58:35,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-28 23:58:35,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-28 23:58:35,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-28 23:58:35,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:35,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:58:35,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:58:35,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-28 23:58:35,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:35,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:58:35,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:58:35,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-28 23:58:35,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:35,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:58:35,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:58:35,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-28 23:58:35,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-28 23:58:35,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-28 23:58:35,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:35,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 23:58:35,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-28 23:58:35,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:58:35,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-28 23:58:35,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:35,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-28 23:58:35,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-11-28 23:58:35,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:35,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 23:58:35,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-11-28 23:58:35,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:35,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:35,880 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-28 23:58:35,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:58:35,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89623252] [2023-11-28 23:58:35,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89623252] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:58:35,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:58:35,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-28 23:58:35,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79713696] [2023-11-28 23:58:35,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:58:35,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-28 23:58:35,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:58:35,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-28 23:58:35,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:58:35,882 INFO L87 Difference]: Start difference. First operand 2766 states and 3658 transitions. Second operand has 10 states, 10 states have (on average 6.7) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (34), 7 states have call predecessors, (34), 2 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2023-11-28 23:58:42,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:58:42,352 INFO L93 Difference]: Finished difference Result 4909 states and 6421 transitions. [2023-11-28 23:58:42,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-28 23:58:42,353 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (34), 7 states have call predecessors, (34), 2 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) Word has length 186 [2023-11-28 23:58:42,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:58:42,361 INFO L225 Difference]: With dead ends: 4909 [2023-11-28 23:58:42,361 INFO L226 Difference]: Without dead ends: 2736 [2023-11-28 23:58:42,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2023-11-28 23:58:42,366 INFO L413 NwaCegarLoop]: 773 mSDtfsCounter, 1190 mSDsluCounter, 3398 mSDsCounter, 0 mSdLazyCounter, 3626 mSolverCounterSat, 1527 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1191 SdHoareTripleChecker+Valid, 4171 SdHoareTripleChecker+Invalid, 5153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1527 IncrementalHoareTripleChecker+Valid, 3626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-11-28 23:58:42,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1191 Valid, 4171 Invalid, 5153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1527 Valid, 3626 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-11-28 23:58:42,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2736 states. [2023-11-28 23:58:42,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2736 to 2708. [2023-11-28 23:58:42,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2708 states, 1661 states have (on average 1.2474413004214329) internal successors, (2072), 1708 states have internal predecessors, (2072), 727 states have call successors, (727), 303 states have call predecessors, (727), 314 states have return successors, (768), 715 states have call predecessors, (768), 725 states have call successors, (768) [2023-11-28 23:58:42,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2708 states to 2708 states and 3567 transitions. [2023-11-28 23:58:42,816 INFO L78 Accepts]: Start accepts. Automaton has 2708 states and 3567 transitions. Word has length 186 [2023-11-28 23:58:42,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:58:42,817 INFO L495 AbstractCegarLoop]: Abstraction has 2708 states and 3567 transitions. [2023-11-28 23:58:42,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (34), 7 states have call predecessors, (34), 2 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2023-11-28 23:58:42,817 INFO L276 IsEmpty]: Start isEmpty. Operand 2708 states and 3567 transitions. [2023-11-28 23:58:42,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2023-11-28 23:58:42,819 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:58:42,819 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2023-11-28 23:58:42,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-11-28 23:58:42,819 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-28 23:58:42,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:58:42,820 INFO L85 PathProgramCache]: Analyzing trace with hash 2133587066, now seen corresponding path program 1 times [2023-11-28 23:58:42,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:58:42,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787513880] [2023-11-28 23:58:42,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:58:42,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:58:43,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:43,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 23:58:43,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-28 23:58:43,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-28 23:58:43,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-28 23:58:43,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:43,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:58:43,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:58:43,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-28 23:58:43,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:43,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:58:43,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:58:43,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-28 23:58:43,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:43,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:58:43,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:58:43,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-28 23:58:43,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:43,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:58:43,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:58:43,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-28 23:58:43,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:43,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:58:43,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:58:43,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-28 23:58:43,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-28 23:58:43,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-28 23:58:43,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:43,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:43,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:43,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-28 23:58:43,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-28 23:58:43,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:43,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 23:58:43,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-28 23:58:43,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:58:43,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-28 23:58:43,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-11-28 23:58:43,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-28 23:58:43,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-28 23:58:43,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-11-28 23:58:43,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:43,523 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 2 proven. 24 refuted. 0 times theorem prover too weak. 355 trivial. 0 not checked. [2023-11-28 23:58:43,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:58:43,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787513880] [2023-11-28 23:58:43,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787513880] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:58:43,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [488675832] [2023-11-28 23:58:43,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:58:43,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:58:43,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:58:43,527 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:58:43,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-28 23:58:44,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:44,372 INFO L262 TraceCheckSpWp]: Trace formula consists of 2292 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-28 23:58:44,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:58:44,415 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2023-11-28 23:58:44,415 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:58:44,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [488675832] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:58:44,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:58:44,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 10 [2023-11-28 23:58:44,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936070630] [2023-11-28 23:58:44,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:58:44,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:58:44,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:58:44,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:58:44,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:58:44,417 INFO L87 Difference]: Start difference. First operand 2708 states and 3567 transitions. Second operand has 6 states, 5 states have (on average 15.2) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2023-11-28 23:58:47,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:58:47,297 INFO L93 Difference]: Finished difference Result 6429 states and 8782 transitions. [2023-11-28 23:58:47,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 23:58:47,298 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.2) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 201 [2023-11-28 23:58:47,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:58:47,307 INFO L225 Difference]: With dead ends: 6429 [2023-11-28 23:58:47,307 INFO L226 Difference]: Without dead ends: 3759 [2023-11-28 23:58:47,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-11-28 23:58:47,313 INFO L413 NwaCegarLoop]: 1015 mSDtfsCounter, 282 mSDsluCounter, 4019 mSDsCounter, 0 mSdLazyCounter, 718 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 5034 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-28 23:58:47,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [408 Valid, 5034 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 718 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-28 23:58:47,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3759 states. [2023-11-28 23:58:47,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3759 to 2679. [2023-11-28 23:58:47,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2679 states, 1647 states have (on average 1.2477231329690346) internal successors, (2055), 1691 states have internal predecessors, (2055), 715 states have call successors, (715), 300 states have call predecessors, (715), 311 states have return successors, (756), 704 states have call predecessors, (756), 713 states have call successors, (756) [2023-11-28 23:58:47,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2679 states to 2679 states and 3526 transitions. [2023-11-28 23:58:47,872 INFO L78 Accepts]: Start accepts. Automaton has 2679 states and 3526 transitions. Word has length 201 [2023-11-28 23:58:47,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:58:47,872 INFO L495 AbstractCegarLoop]: Abstraction has 2679 states and 3526 transitions. [2023-11-28 23:58:47,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.2) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2023-11-28 23:58:47,873 INFO L276 IsEmpty]: Start isEmpty. Operand 2679 states and 3526 transitions. [2023-11-28 23:58:47,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2023-11-28 23:58:47,875 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:58:47,875 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2023-11-28 23:58:47,883 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-28 23:58:48,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:58:48,076 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-28 23:58:48,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:58:48,076 INFO L85 PathProgramCache]: Analyzing trace with hash 348183804, now seen corresponding path program 1 times [2023-11-28 23:58:48,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:58:48,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101581817] [2023-11-28 23:58:48,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:58:48,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:58:48,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:49,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 23:58:49,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-28 23:58:49,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-28 23:58:49,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-28 23:58:49,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:49,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:58:49,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:58:49,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-28 23:58:49,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:49,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:58:49,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:58:49,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-28 23:58:49,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:49,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:58:49,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:58:49,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-28 23:58:49,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:49,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:58:49,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:58:49,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-28 23:58:49,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:49,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 23:58:49,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 23:58:49,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-28 23:58:49,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-28 23:58:49,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-28 23:58:49,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:49,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:49,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:49,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-28 23:58:49,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-28 23:58:49,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 23:58:49,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 23:58:49,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-28 23:58:49,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 23:58:49,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-28 23:58:49,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-11-28 23:58:49,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-28 23:58:49,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-28 23:58:49,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-11-28 23:58:49,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:49,335 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 4 proven. 46 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2023-11-28 23:58:49,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:58:49,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101581817] [2023-11-28 23:58:49,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101581817] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:58:49,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160829091] [2023-11-28 23:58:49,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:58:49,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:58:49,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:58:49,336 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:58:49,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-28 23:58:50,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:58:50,187 INFO L262 TraceCheckSpWp]: Trace formula consists of 2290 conjuncts, 42 conjunts are in the unsatisfiable core [2023-11-28 23:58:50,194 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:58:50,223 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-28 23:58:50,507 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2023-11-28 23:58:50,508 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:58:50,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [160829091] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:58:50,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:58:50,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [13] total 21 [2023-11-28 23:58:50,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263634021] [2023-11-28 23:58:50,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:58:50,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-28 23:58:50,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:58:50,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-28 23:58:50,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=373, Unknown=0, NotChecked=0, Total=420 [2023-11-28 23:58:50,510 INFO L87 Difference]: Start difference. First operand 2679 states and 3526 transitions. Second operand has 10 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 4 states have call successors, (31), 5 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2023-11-28 23:58:57,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-28 23:59:01,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-28 23:59:07,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-28 23:59:11,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-28 23:59:15,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-28 23:59:19,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-28 23:59:24,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-28 23:59:28,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-28 23:59:33,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-28 23:59:38,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-28 23:59:43,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-28 23:59:47,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-28 23:59:51,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-28 23:59:56,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 00:00:00,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 00:00:00,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:00:00,809 INFO L93 Difference]: Finished difference Result 7372 states and 9675 transitions. [2023-11-29 00:00:00,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 00:00:00,810 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 4 states have call successors, (31), 5 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 201 [2023-11-29 00:00:00,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:00:00,820 INFO L225 Difference]: With dead ends: 7372 [2023-11-29 00:00:00,820 INFO L226 Difference]: Without dead ends: 4921 [2023-11-29 00:00:00,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 270 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=99, Invalid=713, Unknown=0, NotChecked=0, Total=812 [2023-11-29 00:00:00,826 INFO L413 NwaCegarLoop]: 751 mSDtfsCounter, 1073 mSDsluCounter, 2134 mSDsCounter, 0 mSdLazyCounter, 5787 mSolverCounterSat, 554 mSolverCounterUnsat, 21 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 68.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1274 SdHoareTripleChecker+Valid, 2885 SdHoareTripleChecker+Invalid, 6362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 554 IncrementalHoareTripleChecker+Valid, 5787 IncrementalHoareTripleChecker+Invalid, 21 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 68.8s IncrementalHoareTripleChecker+Time [2023-11-29 00:00:00,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1274 Valid, 2885 Invalid, 6362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [554 Valid, 5787 Invalid, 21 Unknown, 0 Unchecked, 68.8s Time] [2023-11-29 00:00:00,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4921 states. [2023-11-29 00:00:01,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4921 to 4459. [2023-11-29 00:00:01,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4459 states, 2721 states have (on average 1.2447629547960308) internal successors, (3387), 2814 states have internal predecessors, (3387), 1199 states have call successors, (1199), 504 states have call predecessors, (1199), 533 states have return successors, (1308), 1169 states have call predecessors, (1308), 1197 states have call successors, (1308) [2023-11-29 00:00:01,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4459 states to 4459 states and 5894 transitions. [2023-11-29 00:00:01,710 INFO L78 Accepts]: Start accepts. Automaton has 4459 states and 5894 transitions. Word has length 201 [2023-11-29 00:00:01,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:00:01,710 INFO L495 AbstractCegarLoop]: Abstraction has 4459 states and 5894 transitions. [2023-11-29 00:00:01,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 4 states have call successors, (31), 5 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2023-11-29 00:00:01,711 INFO L276 IsEmpty]: Start isEmpty. Operand 4459 states and 5894 transitions. [2023-11-29 00:00:01,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2023-11-29 00:00:01,712 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:00:01,713 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 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] [2023-11-29 00:00:01,722 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 00:00:01,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:00:01,914 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-29 00:00:01,915 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:00:01,915 INFO L85 PathProgramCache]: Analyzing trace with hash 945149784, now seen corresponding path program 1 times [2023-11-29 00:00:01,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:00:01,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691363352] [2023-11-29 00:00:01,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:00:01,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:00:02,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:02,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:02,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:02,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:00:02,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:02,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:00:02,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:02,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 00:00:02,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:02,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-29 00:00:02,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:02,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-29 00:00:02,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:02,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-29 00:00:02,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:02,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:02,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:02,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-29 00:00:02,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:02,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:00:02,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:02,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 00:00:02,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:02,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-29 00:00:02,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:02,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:02,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:02,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:00:02,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:02,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:00:02,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:02,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-29 00:00:02,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:02,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:02,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:02,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:00:02,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:02,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:00:02,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:02,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-29 00:00:02,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:02,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:02,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:02,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:00:02,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:02,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:00:02,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:02,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-29 00:00:02,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:02,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-29 00:00:02,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:02,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-29 00:00:02,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:02,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:02,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:02,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-29 00:00:02,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:02,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-29 00:00:02,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:02,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:02,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:02,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-29 00:00:02,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:02,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-29 00:00:02,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:02,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-29 00:00:02,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:02,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-11-29 00:00:02,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:02,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:02,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:02,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-11-29 00:00:02,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:02,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:02,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:02,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:00:02,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:02,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-11-29 00:00:02,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:02,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:02,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:02,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2023-11-29 00:00:02,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:02,675 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 323 trivial. 0 not checked. [2023-11-29 00:00:02,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:00:02,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691363352] [2023-11-29 00:00:02,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691363352] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:00:02,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:00:02,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-29 00:00:02,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594512637] [2023-11-29 00:00:02,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:00:02,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 00:00:02,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:00:02,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 00:00:02,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2023-11-29 00:00:02,677 INFO L87 Difference]: Start difference. First operand 4459 states and 5894 transitions. Second operand has 13 states, 12 states have (on average 6.416666666666667) internal successors, (77), 6 states have internal predecessors, (77), 4 states have call successors, (36), 9 states have call predecessors, (36), 2 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2023-11-29 00:00:16,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:00:16,204 INFO L93 Difference]: Finished difference Result 8184 states and 10782 transitions. [2023-11-29 00:00:16,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 00:00:16,205 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.416666666666667) internal successors, (77), 6 states have internal predecessors, (77), 4 states have call successors, (36), 9 states have call predecessors, (36), 2 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 205 [2023-11-29 00:00:16,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:00:16,219 INFO L225 Difference]: With dead ends: 8184 [2023-11-29 00:00:16,219 INFO L226 Difference]: Without dead ends: 4641 [2023-11-29 00:00:16,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=259, Invalid=733, Unknown=0, NotChecked=0, Total=992 [2023-11-29 00:00:16,231 INFO L413 NwaCegarLoop]: 757 mSDtfsCounter, 1547 mSDsluCounter, 4641 mSDsCounter, 0 mSdLazyCounter, 5415 mSolverCounterSat, 1940 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1560 SdHoareTripleChecker+Valid, 5398 SdHoareTripleChecker+Invalid, 7355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1940 IncrementalHoareTripleChecker+Valid, 5415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2023-11-29 00:00:16,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1560 Valid, 5398 Invalid, 7355 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1940 Valid, 5415 Invalid, 0 Unknown, 0 Unchecked, 11.8s Time] [2023-11-29 00:00:16,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4641 states. [2023-11-29 00:00:17,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4641 to 4459. [2023-11-29 00:00:17,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4459 states, 2721 states have (on average 1.2418228592429255) internal successors, (3379), 2814 states have internal predecessors, (3379), 1199 states have call successors, (1199), 504 states have call predecessors, (1199), 533 states have return successors, (1308), 1169 states have call predecessors, (1308), 1197 states have call successors, (1308) [2023-11-29 00:00:17,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4459 states to 4459 states and 5886 transitions. [2023-11-29 00:00:17,227 INFO L78 Accepts]: Start accepts. Automaton has 4459 states and 5886 transitions. Word has length 205 [2023-11-29 00:00:17,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:00:17,228 INFO L495 AbstractCegarLoop]: Abstraction has 4459 states and 5886 transitions. [2023-11-29 00:00:17,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.416666666666667) internal successors, (77), 6 states have internal predecessors, (77), 4 states have call successors, (36), 9 states have call predecessors, (36), 2 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2023-11-29 00:00:17,228 INFO L276 IsEmpty]: Start isEmpty. Operand 4459 states and 5886 transitions. [2023-11-29 00:00:17,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2023-11-29 00:00:17,230 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:00:17,230 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2023-11-29 00:00:17,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-11-29 00:00:17,230 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-29 00:00:17,231 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:00:17,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1128398165, now seen corresponding path program 1 times [2023-11-29 00:00:17,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:00:17,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349972865] [2023-11-29 00:00:17,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:00:17,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:00:17,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:17,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:17,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:17,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:00:17,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:17,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:00:17,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:17,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 00:00:17,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:17,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-29 00:00:17,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:17,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-29 00:00:17,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:17,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-29 00:00:17,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:17,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:17,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:17,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-29 00:00:17,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:17,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:00:17,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:17,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 00:00:17,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:17,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-29 00:00:17,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:17,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:17,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:17,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:00:17,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:17,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:00:17,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:17,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-29 00:00:17,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:17,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:17,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:17,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:00:17,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:17,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:00:17,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:17,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-29 00:00:17,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:17,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:17,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:17,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:00:17,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:17,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:00:17,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:17,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-29 00:00:17,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:17,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-29 00:00:17,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:17,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-29 00:00:17,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:17,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:17,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:17,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-29 00:00:17,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:17,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-29 00:00:17,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:17,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:17,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:17,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-29 00:00:17,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:17,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-29 00:00:17,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:17,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-29 00:00:17,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:17,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-11-29 00:00:17,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:17,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:17,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:17,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:00:17,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:17,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:00:17,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:17,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-11-29 00:00:17,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:17,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:17,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:17,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:00:17,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:17,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:00:17,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:17,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-11-29 00:00:17,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:17,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-11-29 00:00:17,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:17,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-11-29 00:00:17,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:17,839 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 549 trivial. 0 not checked. [2023-11-29 00:00:17,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:00:17,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349972865] [2023-11-29 00:00:17,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349972865] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:00:17,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:00:17,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 00:00:17,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528538739] [2023-11-29 00:00:17,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:00:17,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 00:00:17,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:00:17,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 00:00:17,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 00:00:17,841 INFO L87 Difference]: Start difference. First operand 4459 states and 5886 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (35), 6 states have call predecessors, (35), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-11-29 00:00:23,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:00:23,626 INFO L93 Difference]: Finished difference Result 4491 states and 5925 transitions. [2023-11-29 00:00:23,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 00:00:23,627 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (35), 6 states have call predecessors, (35), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 216 [2023-11-29 00:00:23,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:00:23,638 INFO L225 Difference]: With dead ends: 4491 [2023-11-29 00:00:23,638 INFO L226 Difference]: Without dead ends: 4489 [2023-11-29 00:00:23,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2023-11-29 00:00:23,640 INFO L413 NwaCegarLoop]: 766 mSDtfsCounter, 1513 mSDsluCounter, 2147 mSDsCounter, 0 mSdLazyCounter, 2416 mSolverCounterSat, 1018 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1696 SdHoareTripleChecker+Valid, 2913 SdHoareTripleChecker+Invalid, 3434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1018 IncrementalHoareTripleChecker+Valid, 2416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-11-29 00:00:23,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1696 Valid, 2913 Invalid, 3434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1018 Valid, 2416 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-11-29 00:00:23,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4489 states. [2023-11-29 00:00:24,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4489 to 4469. [2023-11-29 00:00:24,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4469 states, 2728 states have (on average 1.2382697947214076) internal successors, (3378), 2820 states have internal predecessors, (3378), 1199 states have call successors, (1199), 508 states have call predecessors, (1199), 537 states have return successors, (1308), 1169 states have call predecessors, (1308), 1197 states have call successors, (1308) [2023-11-29 00:00:24,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4469 states to 4469 states and 5885 transitions. [2023-11-29 00:00:24,603 INFO L78 Accepts]: Start accepts. Automaton has 4469 states and 5885 transitions. Word has length 216 [2023-11-29 00:00:24,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:00:24,604 INFO L495 AbstractCegarLoop]: Abstraction has 4469 states and 5885 transitions. [2023-11-29 00:00:24,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (35), 6 states have call predecessors, (35), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-11-29 00:00:24,604 INFO L276 IsEmpty]: Start isEmpty. Operand 4469 states and 5885 transitions. [2023-11-29 00:00:24,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2023-11-29 00:00:24,606 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:00:24,606 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 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] [2023-11-29 00:00:24,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-11-29 00:00:24,607 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-29 00:00:24,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:00:24,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1895001723, now seen corresponding path program 1 times [2023-11-29 00:00:24,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:00:24,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423642286] [2023-11-29 00:00:24,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:00:24,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:00:24,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:25,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:25,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:25,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:00:25,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:25,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:00:25,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:25,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 00:00:25,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:25,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-29 00:00:25,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:25,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-29 00:00:25,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:25,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-29 00:00:25,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:25,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:25,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:25,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-29 00:00:25,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:25,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:00:25,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:25,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 00:00:25,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:25,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-29 00:00:25,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:25,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:25,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:25,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:00:25,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:25,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:00:25,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:25,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-29 00:00:25,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:25,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:25,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:25,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:00:25,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:25,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:00:25,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:25,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-29 00:00:25,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:25,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:25,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:25,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:00:25,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:25,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:00:25,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:25,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-29 00:00:25,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:25,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-29 00:00:25,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:25,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-29 00:00:25,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:25,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:25,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:25,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-29 00:00:25,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:25,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-29 00:00:25,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:25,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:25,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:25,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-29 00:00:25,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:25,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-29 00:00:25,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:25,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-29 00:00:25,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:25,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-11-29 00:00:25,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:25,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:25,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:25,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-11-29 00:00:25,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:25,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:25,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:25,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:00:25,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:25,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-11-29 00:00:25,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:25,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:25,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:25,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2023-11-29 00:00:25,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:25,458 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-29 00:00:25,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:00:25,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423642286] [2023-11-29 00:00:25,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423642286] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:00:25,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719581456] [2023-11-29 00:00:25,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:00:25,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:00:25,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:00:25,460 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:00:25,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 00:00:26,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:26,266 INFO L262 TraceCheckSpWp]: Trace formula consists of 2091 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 00:00:26,271 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:00:26,347 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2023-11-29 00:00:26,348 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:00:26,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1719581456] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:00:26,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:00:26,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [19] total 20 [2023-11-29 00:00:26,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965174504] [2023-11-29 00:00:26,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:00:26,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 00:00:26,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:00:26,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 00:00:26,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=342, Unknown=0, NotChecked=0, Total=380 [2023-11-29 00:00:26,350 INFO L87 Difference]: Start difference. First operand 4469 states and 5885 transitions. Second operand has 13 states, 10 states have (on average 8.8) internal successors, (88), 12 states have internal predecessors, (88), 7 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (35), 7 states have call predecessors, (35), 7 states have call successors, (35) [2023-11-29 00:00:32,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:00:32,685 INFO L93 Difference]: Finished difference Result 8025 states and 10499 transitions. [2023-11-29 00:00:32,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 00:00:32,686 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 8.8) internal successors, (88), 12 states have internal predecessors, (88), 7 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (35), 7 states have call predecessors, (35), 7 states have call successors, (35) Word has length 209 [2023-11-29 00:00:32,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:00:32,694 INFO L225 Difference]: With dead ends: 8025 [2023-11-29 00:00:32,695 INFO L226 Difference]: Without dead ends: 4454 [2023-11-29 00:00:32,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=668, Unknown=0, NotChecked=0, Total=756 [2023-11-29 00:00:32,701 INFO L413 NwaCegarLoop]: 1009 mSDtfsCounter, 20 mSDsluCounter, 11053 mSDsCounter, 0 mSdLazyCounter, 1726 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 12062 SdHoareTripleChecker+Invalid, 1743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:00:32,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 12062 Invalid, 1743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1726 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2023-11-29 00:00:32,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4454 states. [2023-11-29 00:00:33,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4454 to 4454. [2023-11-29 00:00:33,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4454 states, 2719 states have (on average 1.2386906951084957) internal successors, (3368), 2810 states have internal predecessors, (3368), 1196 states have call successors, (1196), 505 states have call predecessors, (1196), 534 states have return successors, (1305), 1167 states have call predecessors, (1305), 1194 states have call successors, (1305) [2023-11-29 00:00:33,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4454 states to 4454 states and 5869 transitions. [2023-11-29 00:00:33,529 INFO L78 Accepts]: Start accepts. Automaton has 4454 states and 5869 transitions. Word has length 209 [2023-11-29 00:00:33,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:00:33,529 INFO L495 AbstractCegarLoop]: Abstraction has 4454 states and 5869 transitions. [2023-11-29 00:00:33,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 8.8) internal successors, (88), 12 states have internal predecessors, (88), 7 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (35), 7 states have call predecessors, (35), 7 states have call successors, (35) [2023-11-29 00:00:33,529 INFO L276 IsEmpty]: Start isEmpty. Operand 4454 states and 5869 transitions. [2023-11-29 00:00:33,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2023-11-29 00:00:33,532 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:00:33,532 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 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] [2023-11-29 00:00:33,541 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 00:00:33,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-11-29 00:00:33,733 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-29 00:00:33,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:00:33,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1611016185, now seen corresponding path program 1 times [2023-11-29 00:00:33,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:00:33,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178843036] [2023-11-29 00:00:33,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:00:33,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:00:33,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:34,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:34,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:34,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:00:34,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:34,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:00:34,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:34,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 00:00:34,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:34,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-29 00:00:34,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:34,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-29 00:00:34,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:34,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-29 00:00:34,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:34,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:34,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:34,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-29 00:00:34,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:34,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:00:34,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:34,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 00:00:34,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:34,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-29 00:00:34,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:34,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:34,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:34,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:00:34,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:34,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:00:34,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:34,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-29 00:00:34,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:34,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:34,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:34,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:00:34,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:34,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:00:34,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:34,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-29 00:00:34,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:34,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:34,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:34,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:00:34,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:34,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:00:34,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:34,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-29 00:00:34,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:34,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-29 00:00:34,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:34,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-29 00:00:34,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:34,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:34,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:34,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-29 00:00:34,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:34,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-29 00:00:34,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:34,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:34,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:34,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-29 00:00:34,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:34,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-29 00:00:34,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:34,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-29 00:00:34,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:34,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-11-29 00:00:34,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:34,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:34,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:34,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-11-29 00:00:34,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:34,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:34,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:34,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:00:34,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:34,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-11-29 00:00:34,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:34,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:34,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:34,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2023-11-29 00:00:34,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:34,258 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2023-11-29 00:00:34,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:00:34,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178843036] [2023-11-29 00:00:34,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178843036] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:00:34,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78728956] [2023-11-29 00:00:34,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:00:34,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:00:34,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:00:34,260 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:00:34,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 00:00:35,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:35,048 INFO L262 TraceCheckSpWp]: Trace formula consists of 2089 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 00:00:35,053 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:00:35,179 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2023-11-29 00:00:35,179 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:00:35,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [78728956] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:00:35,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:00:35,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 18 [2023-11-29 00:00:35,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54522085] [2023-11-29 00:00:35,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:00:35,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 00:00:35,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:00:35,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 00:00:35,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2023-11-29 00:00:35,181 INFO L87 Difference]: Start difference. First operand 4454 states and 5869 transitions. Second operand has 10 states, 7 states have (on average 12.285714285714286) internal successors, (86), 9 states have internal predecessors, (86), 5 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (35), 5 states have call predecessors, (35), 5 states have call successors, (35) [2023-11-29 00:00:41,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:00:41,227 INFO L93 Difference]: Finished difference Result 8319 states and 10953 transitions. [2023-11-29 00:00:41,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 00:00:41,228 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 12.285714285714286) internal successors, (86), 9 states have internal predecessors, (86), 5 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (35), 5 states have call predecessors, (35), 5 states have call successors, (35) Word has length 209 [2023-11-29 00:00:41,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:00:41,236 INFO L225 Difference]: With dead ends: 8319 [2023-11-29 00:00:41,236 INFO L226 Difference]: Without dead ends: 4774 [2023-11-29 00:00:41,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2023-11-29 00:00:41,242 INFO L413 NwaCegarLoop]: 1090 mSDtfsCounter, 45 mSDsluCounter, 8599 mSDsCounter, 0 mSdLazyCounter, 1338 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 9689 SdHoareTripleChecker+Invalid, 1344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-11-29 00:00:41,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 9689 Invalid, 1344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1338 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-11-29 00:00:41,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4774 states. [2023-11-29 00:00:42,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4774 to 4474. [2023-11-29 00:00:42,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4474 states, 2735 states have (on average 1.2358318098720293) internal successors, (3380), 2822 states have internal predecessors, (3380), 1200 states have call successors, (1200), 505 states have call predecessors, (1200), 534 states have return successors, (1309), 1175 states have call predecessors, (1309), 1198 states have call successors, (1309) [2023-11-29 00:00:42,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4474 states to 4474 states and 5889 transitions. [2023-11-29 00:00:42,059 INFO L78 Accepts]: Start accepts. Automaton has 4474 states and 5889 transitions. Word has length 209 [2023-11-29 00:00:42,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:00:42,060 INFO L495 AbstractCegarLoop]: Abstraction has 4474 states and 5889 transitions. [2023-11-29 00:00:42,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 12.285714285714286) internal successors, (86), 9 states have internal predecessors, (86), 5 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (35), 5 states have call predecessors, (35), 5 states have call successors, (35) [2023-11-29 00:00:42,060 INFO L276 IsEmpty]: Start isEmpty. Operand 4474 states and 5889 transitions. [2023-11-29 00:00:42,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2023-11-29 00:00:42,061 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:00:42,061 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2023-11-29 00:00:42,070 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 00:00:42,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:00:42,262 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-29 00:00:42,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:00:42,262 INFO L85 PathProgramCache]: Analyzing trace with hash -44843206, now seen corresponding path program 1 times [2023-11-29 00:00:42,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:00:42,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554710493] [2023-11-29 00:00:42,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:00:42,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:00:42,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:43,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:43,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:43,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:00:43,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:43,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:00:43,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:43,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 00:00:43,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:43,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 00:00:43,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:43,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:43,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:43,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:00:43,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:43,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:00:43,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:43,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-29 00:00:43,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:43,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:43,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:43,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:00:43,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:43,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:00:43,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:43,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-29 00:00:43,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:43,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:43,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:43,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:00:43,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:43,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:00:43,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:43,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-29 00:00:43,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:43,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:43,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:43,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:00:43,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:43,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:00:43,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:43,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-29 00:00:43,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:43,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:43,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:43,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:00:43,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:43,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:00:43,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:43,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-29 00:00:43,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:43,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-29 00:00:43,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:43,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-29 00:00:43,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:43,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:43,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:43,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:43,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:43,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:43,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:43,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:00:43,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:43,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 00:00:43,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:43,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:00:43,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:43,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:00:43,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:43,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 00:00:43,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:43,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 00:00:43,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:43,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:00:43,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:43,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-11-29 00:00:43,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:43,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-29 00:00:43,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:43,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-29 00:00:43,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:43,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-11-29 00:00:43,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:43,659 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 4 proven. 46 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2023-11-29 00:00:43,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:00:43,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554710493] [2023-11-29 00:00:43,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554710493] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:00:43,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1017836469] [2023-11-29 00:00:43,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:00:43,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:00:43,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:00:43,660 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:00:43,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 00:00:44,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:00:44,801 INFO L262 TraceCheckSpWp]: Trace formula consists of 2285 conjuncts, 75 conjunts are in the unsatisfiable core [2023-11-29 00:00:44,809 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:00:44,851 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 46 [2023-11-29 00:00:44,883 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 36 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 19 [2023-11-29 00:00:45,496 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2023-11-29 00:00:45,496 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:00:45,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1017836469] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:00:45,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:00:45,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [13] total 21 [2023-11-29 00:00:45,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446308449] [2023-11-29 00:00:45,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:00:45,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 00:00:45,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:00:45,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 00:00:45,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=376, Unknown=0, NotChecked=0, Total=420 [2023-11-29 00:00:45,498 INFO L87 Difference]: Start difference. First operand 4474 states and 5889 transitions. Second operand has 10 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 4 states have call successors, (31), 5 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2023-11-29 00:01:01,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:01:01,172 INFO L93 Difference]: Finished difference Result 8641 states and 11292 transitions. [2023-11-29 00:01:01,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 00:01:01,173 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 4 states have call successors, (31), 5 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 201 [2023-11-29 00:01:01,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:01:01,185 INFO L225 Difference]: With dead ends: 8641 [2023-11-29 00:01:01,185 INFO L226 Difference]: Without dead ends: 6496 [2023-11-29 00:01:01,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 270 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=86, Invalid=616, Unknown=0, NotChecked=0, Total=702 [2023-11-29 00:01:01,190 INFO L413 NwaCegarLoop]: 1141 mSDtfsCounter, 818 mSDsluCounter, 6055 mSDsCounter, 0 mSdLazyCounter, 8092 mSolverCounterSat, 352 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 990 SdHoareTripleChecker+Valid, 7196 SdHoareTripleChecker+Invalid, 8444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 352 IncrementalHoareTripleChecker+Valid, 8092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2023-11-29 00:01:01,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [990 Valid, 7196 Invalid, 8444 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [352 Valid, 8092 Invalid, 0 Unknown, 0 Unchecked, 13.6s Time] [2023-11-29 00:01:01,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6496 states. [2023-11-29 00:01:02,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6496 to 6066. [2023-11-29 00:01:02,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6066 states, 3692 states have (on average 1.233477789815818) internal successors, (4554), 3817 states have internal predecessors, (4554), 1641 states have call successors, (1641), 693 states have call predecessors, (1641), 728 states have return successors, (1796), 1594 states have call predecessors, (1796), 1639 states have call successors, (1796) [2023-11-29 00:01:02,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6066 states to 6066 states and 7991 transitions. [2023-11-29 00:01:02,549 INFO L78 Accepts]: Start accepts. Automaton has 6066 states and 7991 transitions. Word has length 201 [2023-11-29 00:01:02,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:01:02,549 INFO L495 AbstractCegarLoop]: Abstraction has 6066 states and 7991 transitions. [2023-11-29 00:01:02,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 4 states have call successors, (31), 5 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2023-11-29 00:01:02,549 INFO L276 IsEmpty]: Start isEmpty. Operand 6066 states and 7991 transitions. [2023-11-29 00:01:02,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2023-11-29 00:01:02,551 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:01:02,551 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2023-11-29 00:01:02,564 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 00:01:02,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:01:02,752 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-29 00:01:02,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:01:02,752 INFO L85 PathProgramCache]: Analyzing trace with hash -82316797, now seen corresponding path program 1 times [2023-11-29 00:01:02,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:01:02,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439408622] [2023-11-29 00:01:02,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:01:02,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:01:02,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:03,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:01:03,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:03,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:01:03,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:03,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:01:03,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:03,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 00:01:03,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:03,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 00:01:03,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:03,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:01:03,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:03,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:01:03,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:03,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:01:03,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:03,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-29 00:01:03,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:03,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:01:03,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:03,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:01:03,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:03,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:01:03,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:03,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-29 00:01:03,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:03,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:01:03,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:03,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:01:03,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:03,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:01:03,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:03,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-29 00:01:03,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:03,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:01:03,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:03,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:01:03,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:03,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:01:03,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:03,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-29 00:01:03,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:03,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:01:03,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:03,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:01:03,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:03,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:01:03,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:03,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-29 00:01:03,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:03,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-29 00:01:03,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:03,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-29 00:01:03,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:03,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:01:03,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:03,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:01:03,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:03,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:01:03,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:03,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:01:03,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:03,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 00:01:03,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:03,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:01:03,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:03,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:01:03,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:03,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 00:01:03,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:03,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 00:01:03,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:03,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:01:03,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:03,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-11-29 00:01:03,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:03,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-29 00:01:03,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:03,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-29 00:01:03,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:04,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-11-29 00:01:04,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:04,013 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 4 proven. 46 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2023-11-29 00:01:04,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:01:04,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439408622] [2023-11-29 00:01:04,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439408622] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:01:04,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [541827328] [2023-11-29 00:01:04,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:01:04,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:01:04,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:01:04,014 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:01:04,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 00:01:04,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:01:04,891 INFO L262 TraceCheckSpWp]: Trace formula consists of 2307 conjuncts, 49 conjunts are in the unsatisfiable core [2023-11-29 00:01:04,898 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:01:04,920 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 9 [2023-11-29 00:01:05,135 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2023-11-29 00:01:05,136 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:01:05,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [541827328] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:01:05,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:01:05,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [13] total 21 [2023-11-29 00:01:05,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745195235] [2023-11-29 00:01:05,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:01:05,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 00:01:05,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:01:05,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 00:01:05,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=375, Unknown=0, NotChecked=0, Total=420 [2023-11-29 00:01:05,138 INFO L87 Difference]: Start difference. First operand 6066 states and 7991 transitions. Second operand has 10 states, 9 states have (on average 8.0) internal successors, (72), 8 states have internal predecessors, (72), 4 states have call successors, (31), 5 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2023-11-29 00:01:13,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 00:01:18,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 00:01:22,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 00:01:27,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 00:01:31,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 00:01:37,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 00:01:43,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 00:01:44,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 00:01:49,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 00:01:53,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 00:01:57,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 00:02:01,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 00:02:03,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:02:03,094 INFO L93 Difference]: Finished difference Result 13515 states and 17791 transitions. [2023-11-29 00:02:03,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 00:02:03,094 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.0) internal successors, (72), 8 states have internal predecessors, (72), 4 states have call successors, (31), 5 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 202 [2023-11-29 00:02:03,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:02:03,119 INFO L225 Difference]: With dead ends: 13515 [2023-11-29 00:02:03,119 INFO L226 Difference]: Without dead ends: 9467 [2023-11-29 00:02:03,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 271 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=87, Invalid=669, Unknown=0, NotChecked=0, Total=756 [2023-11-29 00:02:03,131 INFO L413 NwaCegarLoop]: 830 mSDtfsCounter, 1071 mSDsluCounter, 3326 mSDsCounter, 0 mSdLazyCounter, 7338 mSolverCounterSat, 540 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 54.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1281 SdHoareTripleChecker+Valid, 4156 SdHoareTripleChecker+Invalid, 7894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 540 IncrementalHoareTripleChecker+Valid, 7338 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 55.3s IncrementalHoareTripleChecker+Time [2023-11-29 00:02:03,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1281 Valid, 4156 Invalid, 7894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [540 Valid, 7338 Invalid, 16 Unknown, 0 Unchecked, 55.3s Time] [2023-11-29 00:02:03,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9467 states. [2023-11-29 00:02:04,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9467 to 8881. [2023-11-29 00:02:04,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8881 states, 5420 states have (on average 1.2405904059040591) internal successors, (6724), 5610 states have internal predecessors, (6724), 2396 states have call successors, (2396), 1015 states have call predecessors, (2396), 1060 states have return successors, (2631), 2312 states have call predecessors, (2631), 2394 states have call successors, (2631) [2023-11-29 00:02:04,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8881 states to 8881 states and 11751 transitions. [2023-11-29 00:02:04,967 INFO L78 Accepts]: Start accepts. Automaton has 8881 states and 11751 transitions. Word has length 202 [2023-11-29 00:02:04,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:02:04,968 INFO L495 AbstractCegarLoop]: Abstraction has 8881 states and 11751 transitions. [2023-11-29 00:02:04,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.0) internal successors, (72), 8 states have internal predecessors, (72), 4 states have call successors, (31), 5 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2023-11-29 00:02:04,968 INFO L276 IsEmpty]: Start isEmpty. Operand 8881 states and 11751 transitions. [2023-11-29 00:02:04,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2023-11-29 00:02:04,970 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:02:04,970 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:02:04,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-29 00:02:05,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:02:05,171 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-29 00:02:05,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:02:05,171 INFO L85 PathProgramCache]: Analyzing trace with hash -674098953, now seen corresponding path program 1 times [2023-11-29 00:02:05,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:02:05,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387815796] [2023-11-29 00:02:05,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:02:05,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:02:05,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:06,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:02:06,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:06,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:02:06,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:06,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:02:06,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:06,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 00:02:06,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:06,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 00:02:06,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:06,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:02:06,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:06,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:02:06,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:06,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:02:06,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:06,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-29 00:02:06,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:06,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:02:06,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:06,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:02:06,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:06,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:02:06,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:06,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-29 00:02:06,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:06,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:02:06,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:06,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:02:06,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:06,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:02:06,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:06,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-29 00:02:06,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:06,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:02:06,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:06,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:02:06,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:06,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:02:06,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:06,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-29 00:02:06,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:06,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:02:06,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:06,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:02:06,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:06,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:02:06,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:06,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-29 00:02:06,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:06,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-29 00:02:06,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:06,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-29 00:02:06,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:06,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:02:06,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:06,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:02:06,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:06,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:02:06,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:06,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:02:06,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:06,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 00:02:06,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:06,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:02:06,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:06,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:02:06,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:06,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 00:02:06,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:06,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 00:02:06,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:06,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:02:06,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:06,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-11-29 00:02:06,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:06,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-29 00:02:06,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:06,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-29 00:02:06,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:06,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-11-29 00:02:06,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:06,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-11-29 00:02:06,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:06,491 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 6 proven. 46 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2023-11-29 00:02:06,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:02:06,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387815796] [2023-11-29 00:02:06,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387815796] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:02:06,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [335976519] [2023-11-29 00:02:06,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:02:06,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:02:06,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:02:06,493 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:02:06,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 00:02:07,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:07,931 INFO L262 TraceCheckSpWp]: Trace formula consists of 2313 conjuncts, 63 conjunts are in the unsatisfiable core [2023-11-29 00:02:07,938 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:02:07,950 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 19 [2023-11-29 00:02:07,957 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 28 [2023-11-29 00:02:08,525 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2023-11-29 00:02:08,526 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:02:08,937 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28 [2023-11-29 00:02:09,112 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2023-11-29 00:02:09,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [335976519] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 00:02:09,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:02:09,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [14, 10] total 29 [2023-11-29 00:02:09,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244501814] [2023-11-29 00:02:09,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:02:09,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 00:02:09,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:02:09,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 00:02:09,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=744, Unknown=0, NotChecked=0, Total=812 [2023-11-29 00:02:09,114 INFO L87 Difference]: Start difference. First operand 8881 states and 11751 transitions. Second operand has 9 states, 8 states have (on average 9.375) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (32), 4 states have call predecessors, (32), 2 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2023-11-29 00:02:22,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:02:22,531 INFO L93 Difference]: Finished difference Result 13252 states and 17513 transitions. [2023-11-29 00:02:22,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 00:02:22,532 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.375) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (32), 4 states have call predecessors, (32), 2 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 207 [2023-11-29 00:02:22,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:02:22,547 INFO L225 Difference]: With dead ends: 13252 [2023-11-29 00:02:22,547 INFO L226 Difference]: Without dead ends: 8970 [2023-11-29 00:02:22,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 510 GetRequests, 474 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=101, Invalid=1089, Unknown=0, NotChecked=0, Total=1190 [2023-11-29 00:02:22,555 INFO L413 NwaCegarLoop]: 809 mSDtfsCounter, 283 mSDsluCounter, 3764 mSDsCounter, 0 mSdLazyCounter, 4092 mSolverCounterSat, 277 mSolverCounterUnsat, 34 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 4573 SdHoareTripleChecker+Invalid, 4403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 277 IncrementalHoareTripleChecker+Valid, 4092 IncrementalHoareTripleChecker+Invalid, 34 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2023-11-29 00:02:22,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 4573 Invalid, 4403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [277 Valid, 4092 Invalid, 34 Unknown, 0 Unchecked, 10.5s Time] [2023-11-29 00:02:22,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8970 states. [2023-11-29 00:02:24,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8970 to 8848. [2023-11-29 00:02:24,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8848 states, 5399 states have (on average 1.239488794221152) internal successors, (6692), 5595 states have internal predecessors, (6692), 2381 states have call successors, (2381), 1013 states have call predecessors, (2381), 1063 states have return successors, (2634), 2296 states have call predecessors, (2634), 2379 states have call successors, (2634) [2023-11-29 00:02:24,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8848 states to 8848 states and 11707 transitions. [2023-11-29 00:02:24,626 INFO L78 Accepts]: Start accepts. Automaton has 8848 states and 11707 transitions. Word has length 207 [2023-11-29 00:02:24,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:02:24,626 INFO L495 AbstractCegarLoop]: Abstraction has 8848 states and 11707 transitions. [2023-11-29 00:02:24,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.375) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (32), 4 states have call predecessors, (32), 2 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2023-11-29 00:02:24,627 INFO L276 IsEmpty]: Start isEmpty. Operand 8848 states and 11707 transitions. [2023-11-29 00:02:24,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2023-11-29 00:02:24,628 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:02:24,628 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:02:24,641 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 00:02:24,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:02:24,829 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-29 00:02:24,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:02:24,829 INFO L85 PathProgramCache]: Analyzing trace with hash 850245547, now seen corresponding path program 1 times [2023-11-29 00:02:24,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:02:24,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445531378] [2023-11-29 00:02:24,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:02:24,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:02:25,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:25,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:02:25,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:25,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:02:25,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:25,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:02:25,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:25,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 00:02:25,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:25,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 00:02:25,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:25,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:02:25,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:25,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:02:25,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:25,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:02:25,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:25,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-29 00:02:25,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:25,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:02:25,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:25,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:02:25,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:25,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:02:25,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:25,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-29 00:02:25,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:25,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:02:25,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:25,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:02:25,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:25,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:02:25,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:25,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-29 00:02:25,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:25,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:02:25,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:25,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:02:25,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:25,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:02:25,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:25,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-29 00:02:25,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:25,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:02:25,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:25,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:02:25,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:25,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:02:25,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:25,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-29 00:02:25,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:25,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-29 00:02:25,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:25,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-29 00:02:25,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:25,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:02:25,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:25,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:02:25,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:25,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:02:25,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:25,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:02:25,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:25,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 00:02:25,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:25,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:02:25,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:25,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:02:25,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:25,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 00:02:25,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:25,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 00:02:25,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:25,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:02:25,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:25,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-11-29 00:02:25,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:25,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-29 00:02:25,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:25,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-11-29 00:02:25,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:25,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-29 00:02:25,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:25,991 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 4 proven. 46 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2023-11-29 00:02:25,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:02:25,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445531378] [2023-11-29 00:02:25,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445531378] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:02:25,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2078036459] [2023-11-29 00:02:25,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:02:25,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:02:25,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:02:25,993 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:02:25,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 00:02:27,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:27,651 INFO L262 TraceCheckSpWp]: Trace formula consists of 2320 conjuncts, 79 conjunts are in the unsatisfiable core [2023-11-29 00:02:27,659 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:02:27,685 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 9 [2023-11-29 00:02:27,698 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 36 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 46 [2023-11-29 00:02:27,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2023-11-29 00:02:27,803 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 61 [2023-11-29 00:02:28,367 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2023-11-29 00:02:28,367 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:02:28,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2078036459] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:02:28,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:02:28,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [13] total 21 [2023-11-29 00:02:28,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278499315] [2023-11-29 00:02:28,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:02:28,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 00:02:28,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:02:28,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 00:02:28,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=376, Unknown=0, NotChecked=0, Total=420 [2023-11-29 00:02:28,369 INFO L87 Difference]: Start difference. First operand 8848 states and 11707 transitions. Second operand has 10 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (31), 5 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2023-11-29 00:02:43,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:02:43,440 INFO L93 Difference]: Finished difference Result 14286 states and 18791 transitions. [2023-11-29 00:02:43,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 00:02:43,441 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (31), 5 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 206 [2023-11-29 00:02:43,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:02:43,459 INFO L225 Difference]: With dead ends: 14286 [2023-11-29 00:02:43,459 INFO L226 Difference]: Without dead ends: 10733 [2023-11-29 00:02:43,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 275 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=86, Invalid=616, Unknown=0, NotChecked=0, Total=702 [2023-11-29 00:02:43,465 INFO L413 NwaCegarLoop]: 1116 mSDtfsCounter, 802 mSDsluCounter, 5408 mSDsCounter, 0 mSdLazyCounter, 7257 mSolverCounterSat, 366 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 954 SdHoareTripleChecker+Valid, 6524 SdHoareTripleChecker+Invalid, 7623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 366 IncrementalHoareTripleChecker+Valid, 7257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2023-11-29 00:02:43,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [954 Valid, 6524 Invalid, 7623 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [366 Valid, 7257 Invalid, 0 Unknown, 0 Unchecked, 11.7s Time] [2023-11-29 00:02:43,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10733 states. [2023-11-29 00:02:45,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10733 to 8849. [2023-11-29 00:02:45,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8849 states, 5400 states have (on average 1.2396296296296296) internal successors, (6694), 5596 states have internal predecessors, (6694), 2381 states have call successors, (2381), 1013 states have call predecessors, (2381), 1063 states have return successors, (2634), 2296 states have call predecessors, (2634), 2379 states have call successors, (2634) [2023-11-29 00:02:45,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8849 states to 8849 states and 11709 transitions. [2023-11-29 00:02:45,811 INFO L78 Accepts]: Start accepts. Automaton has 8849 states and 11709 transitions. Word has length 206 [2023-11-29 00:02:45,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:02:45,812 INFO L495 AbstractCegarLoop]: Abstraction has 8849 states and 11709 transitions. [2023-11-29 00:02:45,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (31), 5 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2023-11-29 00:02:45,812 INFO L276 IsEmpty]: Start isEmpty. Operand 8849 states and 11709 transitions. [2023-11-29 00:02:45,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2023-11-29 00:02:45,813 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:02:45,814 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:02:45,826 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 00:02:46,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2023-11-29 00:02:46,014 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-29 00:02:46,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:02:46,014 INFO L85 PathProgramCache]: Analyzing trace with hash 912285161, now seen corresponding path program 1 times [2023-11-29 00:02:46,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:02:46,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937168007] [2023-11-29 00:02:46,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:02:46,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:02:46,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:46,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:02:46,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:46,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:02:46,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:46,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:02:46,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:46,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 00:02:46,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:46,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 00:02:46,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:46,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:02:46,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:46,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:02:46,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:46,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:02:46,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:47,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-29 00:02:47,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:47,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:02:47,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:47,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:02:47,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:47,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:02:47,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:47,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-29 00:02:47,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:47,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:02:47,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:47,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:02:47,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:47,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:02:47,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:47,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-29 00:02:47,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:47,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:02:47,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:47,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:02:47,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:47,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:02:47,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:47,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-29 00:02:47,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:47,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:02:47,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:47,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:02:47,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:47,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:02:47,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:47,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-29 00:02:47,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:47,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-29 00:02:47,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:47,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-29 00:02:47,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:47,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:02:47,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:47,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:02:47,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:47,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:02:47,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:47,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:02:47,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:47,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 00:02:47,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:47,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:02:47,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:47,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:02:47,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:47,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 00:02:47,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:47,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 00:02:47,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:47,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:02:47,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:47,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-11-29 00:02:47,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:47,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-29 00:02:47,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:47,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-11-29 00:02:47,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:47,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-29 00:02:47,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:47,130 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 4 proven. 46 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2023-11-29 00:02:47,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:02:47,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937168007] [2023-11-29 00:02:47,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937168007] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:02:47,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1742498524] [2023-11-29 00:02:47,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:02:47,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:02:47,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:02:47,131 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:02:47,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 00:02:48,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:02:48,738 INFO L262 TraceCheckSpWp]: Trace formula consists of 2321 conjuncts, 40 conjunts are in the unsatisfiable core [2023-11-29 00:02:48,742 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:02:48,825 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 166 proven. 2 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2023-11-29 00:02:48,826 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:02:49,169 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 4 proven. 42 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2023-11-29 00:02:49,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1742498524] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:02:49,169 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 00:02:49,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9, 8] total 18 [2023-11-29 00:02:49,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7599893] [2023-11-29 00:02:49,170 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 00:02:49,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 00:02:49,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:02:49,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 00:02:49,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2023-11-29 00:02:49,171 INFO L87 Difference]: Start difference. First operand 8849 states and 11709 transitions. Second operand has 18 states, 14 states have (on average 9.5) internal successors, (133), 12 states have internal predecessors, (133), 5 states have call successors, (70), 6 states have call predecessors, (70), 5 states have return successors, (60), 6 states have call predecessors, (60), 5 states have call successors, (60) [2023-11-29 00:03:02,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:03:02,745 INFO L93 Difference]: Finished difference Result 17822 states and 23613 transitions. [2023-11-29 00:03:02,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 00:03:02,746 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 14 states have (on average 9.5) internal successors, (133), 12 states have internal predecessors, (133), 5 states have call successors, (70), 6 states have call predecessors, (70), 5 states have return successors, (60), 6 states have call predecessors, (60), 5 states have call successors, (60) Word has length 206 [2023-11-29 00:03:02,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:03:02,762 INFO L225 Difference]: With dead ends: 17822 [2023-11-29 00:03:02,762 INFO L226 Difference]: Without dead ends: 8991 [2023-11-29 00:03:02,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 513 GetRequests, 482 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=140, Invalid=672, Unknown=0, NotChecked=0, Total=812 [2023-11-29 00:03:02,773 INFO L413 NwaCegarLoop]: 749 mSDtfsCounter, 1079 mSDsluCounter, 6053 mSDsCounter, 0 mSdLazyCounter, 6842 mSolverCounterSat, 1277 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1142 SdHoareTripleChecker+Valid, 6802 SdHoareTripleChecker+Invalid, 8119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1277 IncrementalHoareTripleChecker+Valid, 6842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2023-11-29 00:03:02,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1142 Valid, 6802 Invalid, 8119 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1277 Valid, 6842 Invalid, 0 Unknown, 0 Unchecked, 10.7s Time] [2023-11-29 00:03:02,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8991 states. [2023-11-29 00:03:04,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8991 to 8849. [2023-11-29 00:03:04,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8849 states, 5400 states have (on average 1.2394444444444443) internal successors, (6693), 5595 states have internal predecessors, (6693), 2381 states have call successors, (2381), 1013 states have call predecessors, (2381), 1063 states have return successors, (2634), 2296 states have call predecessors, (2634), 2379 states have call successors, (2634) [2023-11-29 00:03:04,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8849 states to 8849 states and 11708 transitions. [2023-11-29 00:03:04,984 INFO L78 Accepts]: Start accepts. Automaton has 8849 states and 11708 transitions. Word has length 206 [2023-11-29 00:03:04,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:03:04,984 INFO L495 AbstractCegarLoop]: Abstraction has 8849 states and 11708 transitions. [2023-11-29 00:03:04,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 14 states have (on average 9.5) internal successors, (133), 12 states have internal predecessors, (133), 5 states have call successors, (70), 6 states have call predecessors, (70), 5 states have return successors, (60), 6 states have call predecessors, (60), 5 states have call successors, (60) [2023-11-29 00:03:04,985 INFO L276 IsEmpty]: Start isEmpty. Operand 8849 states and 11708 transitions. [2023-11-29 00:03:04,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2023-11-29 00:03:04,986 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:03:04,986 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:03:05,000 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 00:03:05,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2023-11-29 00:03:05,187 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-29 00:03:05,187 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:03:05,187 INFO L85 PathProgramCache]: Analyzing trace with hash -271326006, now seen corresponding path program 1 times [2023-11-29 00:03:05,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:03:05,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587414463] [2023-11-29 00:03:05,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:03:05,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:03:05,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:06,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:06,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:06,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:03:06,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:06,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:03:06,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:06,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 00:03:06,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:06,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 00:03:06,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:06,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:06,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:06,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:03:06,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:06,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:03:06,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:06,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-29 00:03:06,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:06,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:03:06,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:06,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:06,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:06,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:03:06,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:06,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:03:06,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:06,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 00:03:06,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:06,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:06,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:06,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:03:06,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:06,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:03:06,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:06,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-29 00:03:06,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:06,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:06,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:06,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:03:06,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:06,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:03:06,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:06,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-29 00:03:06,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:06,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:06,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:06,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:03:06,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:06,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:03:06,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:06,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-29 00:03:06,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:06,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-29 00:03:06,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:06,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-29 00:03:06,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:06,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:06,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:06,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:06,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:06,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:06,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:06,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:03:06,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:06,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 00:03:06,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:06,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:06,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:06,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:03:06,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:06,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 00:03:06,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:06,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 00:03:06,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:06,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:03:06,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:06,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-11-29 00:03:06,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:06,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-11-29 00:03:06,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:06,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-11-29 00:03:06,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:06,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2023-11-29 00:03:06,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:06,411 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 14 proven. 36 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2023-11-29 00:03:06,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:03:06,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587414463] [2023-11-29 00:03:06,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587414463] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:03:06,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2123905166] [2023-11-29 00:03:06,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:03:06,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:03:06,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:03:06,413 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:03:06,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 00:03:08,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:08,018 INFO L262 TraceCheckSpWp]: Trace formula consists of 2338 conjuncts, 73 conjunts are in the unsatisfiable core [2023-11-29 00:03:08,025 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:03:08,058 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 37 [2023-11-29 00:03:08,075 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 36 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 55 [2023-11-29 00:03:08,258 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 00:03:08,259 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 74 treesize of output 64 [2023-11-29 00:03:08,276 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 40 [2023-11-29 00:03:08,987 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2023-11-29 00:03:08,987 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:03:09,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28 [2023-11-29 00:03:09,484 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 32 [2023-11-29 00:03:09,663 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2023-11-29 00:03:09,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2123905166] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 00:03:09,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:03:09,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [14, 11] total 30 [2023-11-29 00:03:09,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224897473] [2023-11-29 00:03:09,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:03:09,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 00:03:09,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:03:09,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 00:03:09,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2023-11-29 00:03:09,666 INFO L87 Difference]: Start difference. First operand 8849 states and 11708 transitions. Second operand has 9 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 4 states have call successors, (32), 4 states have call predecessors, (32), 2 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2023-11-29 00:03:23,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:03:23,754 INFO L93 Difference]: Finished difference Result 12537 states and 16559 transitions. [2023-11-29 00:03:23,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 00:03:23,755 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 4 states have call successors, (32), 4 states have call predecessors, (32), 2 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 209 [2023-11-29 00:03:23,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:03:23,777 INFO L225 Difference]: With dead ends: 12537 [2023-11-29 00:03:23,777 INFO L226 Difference]: Without dead ends: 8990 [2023-11-29 00:03:23,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 513 GetRequests, 478 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=107, Invalid=1153, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 00:03:23,783 INFO L413 NwaCegarLoop]: 817 mSDtfsCounter, 278 mSDsluCounter, 3792 mSDsCounter, 0 mSdLazyCounter, 4051 mSolverCounterSat, 273 mSolverCounterUnsat, 29 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 4609 SdHoareTripleChecker+Invalid, 4353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 273 IncrementalHoareTripleChecker+Valid, 4051 IncrementalHoareTripleChecker+Invalid, 29 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2023-11-29 00:03:23,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 4609 Invalid, 4353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [273 Valid, 4051 Invalid, 29 Unknown, 0 Unchecked, 10.7s Time] [2023-11-29 00:03:23,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8990 states. [2023-11-29 00:03:26,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8990 to 8870. [2023-11-29 00:03:26,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8870 states, 5411 states have (on average 1.2389576788024395) internal successors, (6704), 5607 states have internal predecessors, (6704), 2389 states have call successors, (2389), 1015 states have call predecessors, (2389), 1065 states have return successors, (2642), 2303 states have call predecessors, (2642), 2387 states have call successors, (2642) [2023-11-29 00:03:26,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8870 states to 8870 states and 11735 transitions. [2023-11-29 00:03:26,185 INFO L78 Accepts]: Start accepts. Automaton has 8870 states and 11735 transitions. Word has length 209 [2023-11-29 00:03:26,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:03:26,186 INFO L495 AbstractCegarLoop]: Abstraction has 8870 states and 11735 transitions. [2023-11-29 00:03:26,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 4 states have call successors, (32), 4 states have call predecessors, (32), 2 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2023-11-29 00:03:26,186 INFO L276 IsEmpty]: Start isEmpty. Operand 8870 states and 11735 transitions. [2023-11-29 00:03:26,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2023-11-29 00:03:26,189 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:03:26,189 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 11, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:03:26,204 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 00:03:26,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2023-11-29 00:03:26,390 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-29 00:03:26,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:03:26,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1252200434, now seen corresponding path program 1 times [2023-11-29 00:03:26,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:03:26,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466626911] [2023-11-29 00:03:26,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:03:26,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:03:26,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:26,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:03:26,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:03:26,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 00:03:26,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-29 00:03:26,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-29 00:03:26,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-29 00:03:26,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:26,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-29 00:03:26,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:03:26,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 00:03:26,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-29 00:03:26,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:26,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:03:26,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:03:26,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-29 00:03:26,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:26,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:03:26,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:03:26,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-29 00:03:26,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:26,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:03:26,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:03:26,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-29 00:03:26,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-29 00:03:26,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-29 00:03:26,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:26,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:03:26,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 00:03:26,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 00:03:26,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-29 00:03:26,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:26,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-29 00:03:26,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-11-29 00:03:26,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:26,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:03:26,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-11-29 00:03:26,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:26,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-11-29 00:03:26,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:26,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-11-29 00:03:26,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-11-29 00:03:26,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-11-29 00:03:26,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-11-29 00:03:26,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:26,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:03:26,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 00:03:26,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 00:03:26,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-11-29 00:03:26,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:26,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-11-29 00:03:26,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:26,807 INFO L134 CoverageAnalysis]: Checked inductivity of 564 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-29 00:03:26,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:03:26,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466626911] [2023-11-29 00:03:26,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466626911] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:03:26,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:03:26,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 00:03:26,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402314479] [2023-11-29 00:03:26,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:03:26,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 00:03:26,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:03:26,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 00:03:26,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-29 00:03:26,809 INFO L87 Difference]: Start difference. First operand 8870 states and 11735 transitions. Second operand has 10 states, 10 states have (on average 7.6) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (41), 7 states have call predecessors, (41), 2 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) [2023-11-29 00:03:36,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:03:36,304 INFO L93 Difference]: Finished difference Result 16463 states and 21702 transitions. [2023-11-29 00:03:36,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 00:03:36,343 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.6) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (41), 7 states have call predecessors, (41), 2 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) Word has length 247 [2023-11-29 00:03:36,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:03:36,358 INFO L225 Difference]: With dead ends: 16463 [2023-11-29 00:03:36,358 INFO L226 Difference]: Without dead ends: 8914 [2023-11-29 00:03:36,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2023-11-29 00:03:36,367 INFO L413 NwaCegarLoop]: 766 mSDtfsCounter, 1208 mSDsluCounter, 3342 mSDsCounter, 0 mSdLazyCounter, 3581 mSolverCounterSat, 1527 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1219 SdHoareTripleChecker+Valid, 4108 SdHoareTripleChecker+Invalid, 5108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1527 IncrementalHoareTripleChecker+Valid, 3581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2023-11-29 00:03:36,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1219 Valid, 4108 Invalid, 5108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1527 Valid, 3581 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2023-11-29 00:03:36,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8914 states. [2023-11-29 00:03:38,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8914 to 8870. [2023-11-29 00:03:38,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8870 states, 5411 states have (on average 1.2371095915727222) internal successors, (6694), 5607 states have internal predecessors, (6694), 2389 states have call successors, (2389), 1015 states have call predecessors, (2389), 1065 states have return successors, (2642), 2303 states have call predecessors, (2642), 2387 states have call successors, (2642) [2023-11-29 00:03:38,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8870 states to 8870 states and 11725 transitions. [2023-11-29 00:03:38,730 INFO L78 Accepts]: Start accepts. Automaton has 8870 states and 11725 transitions. Word has length 247 [2023-11-29 00:03:38,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:03:38,730 INFO L495 AbstractCegarLoop]: Abstraction has 8870 states and 11725 transitions. [2023-11-29 00:03:38,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.6) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (41), 7 states have call predecessors, (41), 2 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) [2023-11-29 00:03:38,731 INFO L276 IsEmpty]: Start isEmpty. Operand 8870 states and 11725 transitions. [2023-11-29 00:03:38,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2023-11-29 00:03:38,734 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:03:38,734 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1] [2023-11-29 00:03:38,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-11-29 00:03:38,734 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-29 00:03:38,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:03:38,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1085896838, now seen corresponding path program 1 times [2023-11-29 00:03:38,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:03:38,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332092659] [2023-11-29 00:03:38,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:03:38,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:03:38,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:39,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:03:39,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:03:39,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 00:03:39,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 00:03:39,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:39,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:03:39,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:03:39,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-29 00:03:39,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:03:39,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:39,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:03:39,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:03:39,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 00:03:39,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:39,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:03:39,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:03:39,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-29 00:03:39,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:39,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:03:39,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:03:39,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-29 00:03:39,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:39,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:03:39,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:03:39,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-29 00:03:39,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-29 00:03:39,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-29 00:03:39,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:39,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:39,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:39,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:03:39,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 00:03:39,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:39,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-29 00:03:39,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-29 00:03:39,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-11-29 00:03:39,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-11-29 00:03:39,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-11-29 00:03:39,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:39,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-11-29 00:03:39,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-11-29 00:03:39,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-11-29 00:03:39,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-11-29 00:03:39,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-11-29 00:03:39,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-29 00:03:39,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:39,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-11-29 00:03:39,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-11-29 00:03:39,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:39,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2023-11-29 00:03:39,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:39,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-11-29 00:03:39,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:39,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-11-29 00:03:39,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:39,865 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 14 proven. 36 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2023-11-29 00:03:39,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:03:39,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332092659] [2023-11-29 00:03:39,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332092659] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:03:39,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1894144263] [2023-11-29 00:03:39,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:03:39,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:03:39,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:03:39,867 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:03:39,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 00:03:40,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:40,841 INFO L262 TraceCheckSpWp]: Trace formula consists of 2408 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 00:03:40,848 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:03:41,035 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2023-11-29 00:03:41,035 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:03:41,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1894144263] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:03:41,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:03:41,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [16] total 24 [2023-11-29 00:03:41,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373267778] [2023-11-29 00:03:41,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:03:41,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 00:03:41,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:03:41,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 00:03:41,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=505, Unknown=0, NotChecked=0, Total=552 [2023-11-29 00:03:41,037 INFO L87 Difference]: Start difference. First operand 8870 states and 11725 transitions. Second operand has 12 states, 9 states have (on average 11.444444444444445) internal successors, (103), 11 states have internal predecessors, (103), 7 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (43), 7 states have call predecessors, (43), 7 states have call successors, (43) [2023-11-29 00:03:49,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:03:49,824 INFO L93 Difference]: Finished difference Result 19112 states and 26221 transitions. [2023-11-29 00:03:49,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 00:03:49,824 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 11.444444444444445) internal successors, (103), 11 states have internal predecessors, (103), 7 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (43), 7 states have call predecessors, (43), 7 states have call successors, (43) Word has length 268 [2023-11-29 00:03:49,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:03:49,848 INFO L225 Difference]: With dead ends: 19112 [2023-11-29 00:03:49,848 INFO L226 Difference]: Without dead ends: 12291 [2023-11-29 00:03:49,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 363 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=87, Invalid=843, Unknown=0, NotChecked=0, Total=930 [2023-11-29 00:03:49,858 INFO L413 NwaCegarLoop]: 1494 mSDtfsCounter, 345 mSDsluCounter, 14449 mSDsCounter, 0 mSdLazyCounter, 1983 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 15943 SdHoareTripleChecker+Invalid, 2002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-11-29 00:03:49,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 15943 Invalid, 2002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1983 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2023-11-29 00:03:49,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12291 states. [2023-11-29 00:03:52,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12291 to 8885. [2023-11-29 00:03:52,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8885 states, 5421 states have (on average 1.235380926028408) internal successors, (6697), 5614 states have internal predecessors, (6697), 2396 states have call successors, (2396), 1012 states have call predecessors, (2396), 1063 states have return successors, (2644), 2314 states have call predecessors, (2644), 2394 states have call successors, (2644) [2023-11-29 00:03:52,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8885 states to 8885 states and 11737 transitions. [2023-11-29 00:03:52,387 INFO L78 Accepts]: Start accepts. Automaton has 8885 states and 11737 transitions. Word has length 268 [2023-11-29 00:03:52,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:03:52,388 INFO L495 AbstractCegarLoop]: Abstraction has 8885 states and 11737 transitions. [2023-11-29 00:03:52,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 11.444444444444445) internal successors, (103), 11 states have internal predecessors, (103), 7 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (43), 7 states have call predecessors, (43), 7 states have call successors, (43) [2023-11-29 00:03:52,388 INFO L276 IsEmpty]: Start isEmpty. Operand 8885 states and 11737 transitions. [2023-11-29 00:03:52,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2023-11-29 00:03:52,391 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:03:52,391 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 11, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-29 00:03:52,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-29 00:03:52,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2023-11-29 00:03:52,592 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-29 00:03:52,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:03:52,592 INFO L85 PathProgramCache]: Analyzing trace with hash -926503387, now seen corresponding path program 1 times [2023-11-29 00:03:52,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:03:52,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502516741] [2023-11-29 00:03:52,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:03:52,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:03:52,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:52,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:52,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:52,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:03:52,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:52,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:03:52,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:52,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 00:03:52,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:52,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-29 00:03:52,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:52,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-29 00:03:52,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:52,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-29 00:03:52,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:52,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:52,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:52,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-29 00:03:52,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:52,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:03:52,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:52,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 00:03:52,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:52,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-29 00:03:52,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:52,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:52,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:52,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:03:52,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:52,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:03:52,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:52,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-29 00:03:52,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:52,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:52,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:52,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:03:52,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:52,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:03:52,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:52,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-29 00:03:52,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:52,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:52,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:52,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:03:53,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:53,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:03:53,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:53,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-29 00:03:53,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:53,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-29 00:03:53,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:53,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-29 00:03:53,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:53,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:53,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:53,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:03:53,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:53,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 00:03:53,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:53,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 00:03:53,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:53,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-29 00:03:53,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:53,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:53,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:53,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-29 00:03:53,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:53,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-11-29 00:03:53,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:53,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:53,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:53,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:03:53,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:53,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-11-29 00:03:53,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:53,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:53,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:53,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-29 00:03:53,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:53,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:53,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:53,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-29 00:03:53,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:53,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:53,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:53,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-11-29 00:03:53,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:53,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-11-29 00:03:53,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:53,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-11-29 00:03:53,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:53,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2023-11-29 00:03:53,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:53,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:53,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:53,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-11-29 00:03:53,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:53,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:53,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:53,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:03:53,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:53,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-11-29 00:03:53,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:53,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:03:53,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:53,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-11-29 00:03:53,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:53,118 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 2 proven. 24 refuted. 0 times theorem prover too weak. 445 trivial. 0 not checked. [2023-11-29 00:03:53,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:03:53,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502516741] [2023-11-29 00:03:53,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502516741] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:03:53,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [983206104] [2023-11-29 00:03:53,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:03:53,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:03:53,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:03:53,120 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:03:53,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 00:03:54,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:03:54,117 INFO L262 TraceCheckSpWp]: Trace formula consists of 2313 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 00:03:54,122 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:03:54,231 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2023-11-29 00:03:54,231 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:03:54,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [983206104] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:03:54,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:03:54,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 18 [2023-11-29 00:03:54,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420192554] [2023-11-29 00:03:54,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:03:54,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 00:03:54,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:03:54,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 00:03:54,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2023-11-29 00:03:54,232 INFO L87 Difference]: Start difference. First operand 8885 states and 11737 transitions. Second operand has 10 states, 7 states have (on average 16.0) internal successors, (112), 9 states have internal predecessors, (112), 6 states have call successors, (49), 2 states have call predecessors, (49), 4 states have return successors, (47), 6 states have call predecessors, (47), 6 states have call successors, (47) [2023-11-29 00:04:00,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:04:00,434 INFO L93 Difference]: Finished difference Result 14938 states and 19682 transitions. [2023-11-29 00:04:00,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 00:04:00,434 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 16.0) internal successors, (112), 9 states have internal predecessors, (112), 6 states have call successors, (49), 2 states have call predecessors, (49), 4 states have return successors, (47), 6 states have call predecessors, (47), 6 states have call successors, (47) Word has length 271 [2023-11-29 00:04:00,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:04:00,448 INFO L225 Difference]: With dead ends: 14938 [2023-11-29 00:04:00,448 INFO L226 Difference]: Without dead ends: 7380 [2023-11-29 00:04:00,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2023-11-29 00:04:00,457 INFO L413 NwaCegarLoop]: 1089 mSDtfsCounter, 47 mSDsluCounter, 8591 mSDsCounter, 0 mSdLazyCounter, 1336 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 9680 SdHoareTripleChecker+Invalid, 1344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:04:00,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 9680 Invalid, 1344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1336 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-11-29 00:04:00,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7380 states. [2023-11-29 00:04:02,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7380 to 6784. [2023-11-29 00:04:02,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6784 states, 4148 states have (on average 1.2254098360655739) internal successors, (5083), 4276 states have internal predecessors, (5083), 1811 states have call successors, (1811), 772 states have call predecessors, (1811), 820 states have return successors, (1997), 1776 states have call predecessors, (1997), 1809 states have call successors, (1997) [2023-11-29 00:04:02,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6784 states to 6784 states and 8891 transitions. [2023-11-29 00:04:02,224 INFO L78 Accepts]: Start accepts. Automaton has 6784 states and 8891 transitions. Word has length 271 [2023-11-29 00:04:02,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:04:02,225 INFO L495 AbstractCegarLoop]: Abstraction has 6784 states and 8891 transitions. [2023-11-29 00:04:02,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 16.0) internal successors, (112), 9 states have internal predecessors, (112), 6 states have call successors, (49), 2 states have call predecessors, (49), 4 states have return successors, (47), 6 states have call predecessors, (47), 6 states have call successors, (47) [2023-11-29 00:04:02,225 INFO L276 IsEmpty]: Start isEmpty. Operand 6784 states and 8891 transitions. [2023-11-29 00:04:02,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2023-11-29 00:04:02,230 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:04:02,231 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 11, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:04:02,241 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 00:04:02,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2023-11-29 00:04:02,431 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-29 00:04:02,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:04:02,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1095307119, now seen corresponding path program 1 times [2023-11-29 00:04:02,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:04:02,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208195810] [2023-11-29 00:04:02,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:04:02,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:04:02,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:02,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:04:02,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:04:02,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 00:04:02,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-29 00:04:02,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-29 00:04:02,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-29 00:04:02,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:02,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-29 00:04:02,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:04:02,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 00:04:02,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-29 00:04:02,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:02,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:04:02,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:04:02,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-29 00:04:02,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:02,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:04:02,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:04:02,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-29 00:04:02,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:02,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:04:02,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:04:02,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-29 00:04:02,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-29 00:04:02,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-29 00:04:02,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:02,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:04:02,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 00:04:02,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 00:04:02,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-29 00:04:02,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:02,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-29 00:04:02,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-11-29 00:04:02,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:02,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:04:02,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-11-29 00:04:02,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:02,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-11-29 00:04:02,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-11-29 00:04:02,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-29 00:04:02,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-11-29 00:04:02,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:02,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-11-29 00:04:02,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:02,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2023-11-29 00:04:02,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-11-29 00:04:02,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-11-29 00:04:02,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-11-29 00:04:02,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:02,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:04:02,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:04:02,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-11-29 00:04:02,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:02,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:04:02,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:04:02,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2023-11-29 00:04:02,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-11-29 00:04:02,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:02,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:04:02,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2023-11-29 00:04:02,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:02,916 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 748 trivial. 0 not checked. [2023-11-29 00:04:02,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:04:02,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208195810] [2023-11-29 00:04:02,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208195810] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:04:02,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:04:02,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 00:04:02,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123939351] [2023-11-29 00:04:02,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:04:02,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 00:04:02,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:04:02,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 00:04:02,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-29 00:04:02,919 INFO L87 Difference]: Start difference. First operand 6784 states and 8891 transitions. Second operand has 10 states, 10 states have (on average 9.7) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (48), 7 states have call predecessors, (48), 2 states have return successors, (46), 3 states have call predecessors, (46), 2 states have call successors, (46) [2023-11-29 00:04:11,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:04:11,913 INFO L93 Difference]: Finished difference Result 11762 states and 15293 transitions. [2023-11-29 00:04:11,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 00:04:11,914 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (48), 7 states have call predecessors, (48), 2 states have return successors, (46), 3 states have call predecessors, (46), 2 states have call successors, (46) Word has length 297 [2023-11-29 00:04:11,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:04:11,926 INFO L225 Difference]: With dead ends: 11762 [2023-11-29 00:04:11,926 INFO L226 Difference]: Without dead ends: 6451 [2023-11-29 00:04:11,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2023-11-29 00:04:11,933 INFO L413 NwaCegarLoop]: 767 mSDtfsCounter, 1179 mSDsluCounter, 3372 mSDsCounter, 0 mSdLazyCounter, 3603 mSolverCounterSat, 1522 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1179 SdHoareTripleChecker+Valid, 4139 SdHoareTripleChecker+Invalid, 5125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1522 IncrementalHoareTripleChecker+Valid, 3603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2023-11-29 00:04:11,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1179 Valid, 4139 Invalid, 5125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1522 Valid, 3603 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2023-11-29 00:04:11,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6451 states. [2023-11-29 00:04:13,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6451 to 6415. [2023-11-29 00:04:13,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6415 states, 3902 states have (on average 1.2114300358790364) internal successors, (4727), 4022 states have internal predecessors, (4727), 1708 states have call successors, (1708), 746 states have call predecessors, (1708), 800 states have return successors, (1906), 1687 states have call predecessors, (1906), 1706 states have call successors, (1906) [2023-11-29 00:04:13,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6415 states to 6415 states and 8341 transitions. [2023-11-29 00:04:13,638 INFO L78 Accepts]: Start accepts. Automaton has 6415 states and 8341 transitions. Word has length 297 [2023-11-29 00:04:13,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:04:13,638 INFO L495 AbstractCegarLoop]: Abstraction has 6415 states and 8341 transitions. [2023-11-29 00:04:13,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (48), 7 states have call predecessors, (48), 2 states have return successors, (46), 3 states have call predecessors, (46), 2 states have call successors, (46) [2023-11-29 00:04:13,639 INFO L276 IsEmpty]: Start isEmpty. Operand 6415 states and 8341 transitions. [2023-11-29 00:04:13,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2023-11-29 00:04:13,642 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:04:13,642 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 11, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-29 00:04:13,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2023-11-29 00:04:13,643 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-29 00:04:13,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:04:13,643 INFO L85 PathProgramCache]: Analyzing trace with hash -700633100, now seen corresponding path program 1 times [2023-11-29 00:04:13,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:04:13,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603851808] [2023-11-29 00:04:13,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:04:13,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:04:13,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:14,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:04:14,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:04:14,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 00:04:14,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-29 00:04:14,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-29 00:04:14,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-29 00:04:14,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:14,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-29 00:04:14,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:04:14,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 00:04:14,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-29 00:04:14,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:14,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:04:14,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:04:14,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-29 00:04:14,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:14,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:04:14,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:04:14,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-29 00:04:14,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:14,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:04:14,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:04:14,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-29 00:04:14,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-29 00:04:14,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-29 00:04:14,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:14,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:04:14,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 00:04:14,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 00:04:14,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-29 00:04:14,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:14,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-29 00:04:14,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-11-29 00:04:14,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:14,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:04:14,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-11-29 00:04:14,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:14,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-11-29 00:04:14,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-11-29 00:04:14,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-29 00:04:14,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-11-29 00:04:14,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:14,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-11-29 00:04:14,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:14,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2023-11-29 00:04:14,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-11-29 00:04:14,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-11-29 00:04:14,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-11-29 00:04:14,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:14,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-11-29 00:04:14,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:14,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:04:14,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-11-29 00:04:14,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:14,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-11-29 00:04:14,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:14,236 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 2 proven. 24 refuted. 0 times theorem prover too weak. 445 trivial. 0 not checked. [2023-11-29 00:04:14,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:04:14,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603851808] [2023-11-29 00:04:14,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603851808] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:04:14,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2024346391] [2023-11-29 00:04:14,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:04:14,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:04:14,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:04:14,237 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:04:14,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 00:04:15,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:15,248 INFO L262 TraceCheckSpWp]: Trace formula consists of 2444 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 00:04:15,253 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:04:15,369 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2023-11-29 00:04:15,369 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:04:15,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2024346391] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:04:15,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:04:15,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 19 [2023-11-29 00:04:15,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957054252] [2023-11-29 00:04:15,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:04:15,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 00:04:15,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:04:15,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 00:04:15,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2023-11-29 00:04:15,372 INFO L87 Difference]: Start difference. First operand 6415 states and 8341 transitions. Second operand has 11 states, 8 states have (on average 15.25) internal successors, (122), 10 states have internal predecessors, (122), 7 states have call successors, (52), 2 states have call predecessors, (52), 4 states have return successors, (50), 7 states have call predecessors, (50), 7 states have call successors, (50) [2023-11-29 00:04:21,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:04:21,821 INFO L93 Difference]: Finished difference Result 11889 states and 15486 transitions. [2023-11-29 00:04:21,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 00:04:21,822 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 15.25) internal successors, (122), 10 states have internal predecessors, (122), 7 states have call successors, (52), 2 states have call predecessors, (52), 4 states have return successors, (50), 7 states have call predecessors, (50), 7 states have call successors, (50) Word has length 287 [2023-11-29 00:04:21,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:04:21,835 INFO L225 Difference]: With dead ends: 11889 [2023-11-29 00:04:21,835 INFO L226 Difference]: Without dead ends: 6974 [2023-11-29 00:04:21,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 386 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=629, Unknown=0, NotChecked=0, Total=702 [2023-11-29 00:04:21,842 INFO L413 NwaCegarLoop]: 1097 mSDtfsCounter, 50 mSDsluCounter, 9729 mSDsCounter, 0 mSdLazyCounter, 1515 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 10826 SdHoareTripleChecker+Invalid, 1526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-11-29 00:04:21,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 10826 Invalid, 1526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1515 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-11-29 00:04:21,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6974 states. [2023-11-29 00:04:23,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6974 to 6415. [2023-11-29 00:04:23,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6415 states, 3902 states have (on average 1.2114300358790364) internal successors, (4727), 4022 states have internal predecessors, (4727), 1708 states have call successors, (1708), 746 states have call predecessors, (1708), 800 states have return successors, (1906), 1687 states have call predecessors, (1906), 1706 states have call successors, (1906) [2023-11-29 00:04:23,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6415 states to 6415 states and 8341 transitions. [2023-11-29 00:04:23,590 INFO L78 Accepts]: Start accepts. Automaton has 6415 states and 8341 transitions. Word has length 287 [2023-11-29 00:04:23,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:04:23,590 INFO L495 AbstractCegarLoop]: Abstraction has 6415 states and 8341 transitions. [2023-11-29 00:04:23,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 15.25) internal successors, (122), 10 states have internal predecessors, (122), 7 states have call successors, (52), 2 states have call predecessors, (52), 4 states have return successors, (50), 7 states have call predecessors, (50), 7 states have call successors, (50) [2023-11-29 00:04:23,590 INFO L276 IsEmpty]: Start isEmpty. Operand 6415 states and 8341 transitions. [2023-11-29 00:04:23,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2023-11-29 00:04:23,594 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:04:23,594 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 00:04:23,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 00:04:23,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:04:23,795 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-29 00:04:23,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:04:23,795 INFO L85 PathProgramCache]: Analyzing trace with hash 407798927, now seen corresponding path program 1 times [2023-11-29 00:04:23,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:04:23,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693259011] [2023-11-29 00:04:23,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:04:23,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:04:23,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:24,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:04:24,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:04:24,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 00:04:24,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 00:04:24,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:24,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:04:24,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:04:24,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-29 00:04:24,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:04:24,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:24,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:04:24,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:04:24,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 00:04:24,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:24,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:04:24,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:04:24,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-29 00:04:24,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:24,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:04:24,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:04:24,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-29 00:04:24,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:24,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:04:24,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:04:24,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-29 00:04:24,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-29 00:04:24,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-29 00:04:24,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:24,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:24,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:24,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:04:24,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 00:04:24,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:24,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:04:24,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 00:04:24,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 00:04:24,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:04:24,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-11-29 00:04:24,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-11-29 00:04:24,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-11-29 00:04:24,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:24,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:24,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:24,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:04:24,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 00:04:24,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:24,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-29 00:04:24,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2023-11-29 00:04:24,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-11-29 00:04:24,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:24,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:24,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:24,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:24,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:25,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:04:25,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:25,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 00:04:25,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:25,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:25,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:25,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-29 00:04:25,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:25,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2023-11-29 00:04:25,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:25,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:25,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:25,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:25,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:25,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2023-11-29 00:04:25,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:25,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2023-11-29 00:04:25,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:25,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2023-11-29 00:04:25,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:25,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:25,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:25,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2023-11-29 00:04:25,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:25,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2023-11-29 00:04:25,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:25,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2023-11-29 00:04:25,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:25,085 INFO L134 CoverageAnalysis]: Checked inductivity of 621 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 607 trivial. 0 not checked. [2023-11-29 00:04:25,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:04:25,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693259011] [2023-11-29 00:04:25,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693259011] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:04:25,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [237886701] [2023-11-29 00:04:25,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:04:25,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:04:25,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:04:25,087 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:04:25,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 00:04:26,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:26,515 INFO L262 TraceCheckSpWp]: Trace formula consists of 2750 conjuncts, 98 conjunts are in the unsatisfiable core [2023-11-29 00:04:26,521 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:04:26,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-29 00:04:26,659 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-29 00:04:27,012 INFO L134 CoverageAnalysis]: Checked inductivity of 621 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 615 trivial. 0 not checked. [2023-11-29 00:04:27,012 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:04:27,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [237886701] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:04:27,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:04:27,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [14] total 28 [2023-11-29 00:04:27,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593956571] [2023-11-29 00:04:27,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:04:27,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 00:04:27,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:04:27,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 00:04:27,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=694, Unknown=0, NotChecked=0, Total=756 [2023-11-29 00:04:27,014 INFO L87 Difference]: Start difference. First operand 6415 states and 8341 transitions. Second operand has 17 states, 16 states have (on average 5.625) internal successors, (90), 13 states have internal predecessors, (90), 5 states have call successors, (41), 5 states have call predecessors, (41), 5 states have return successors, (39), 6 states have call predecessors, (39), 4 states have call successors, (39) [2023-11-29 00:04:36,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 00:04:49,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 00:04:50,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:04:50,635 INFO L93 Difference]: Finished difference Result 12834 states and 16698 transitions. [2023-11-29 00:04:50,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 00:04:50,636 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 5.625) internal successors, (90), 13 states have internal predecessors, (90), 5 states have call successors, (41), 5 states have call predecessors, (41), 5 states have return successors, (39), 6 states have call predecessors, (39), 4 states have call successors, (39) Word has length 329 [2023-11-29 00:04:50,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:04:50,647 INFO L225 Difference]: With dead ends: 12834 [2023-11-29 00:04:50,647 INFO L226 Difference]: Without dead ends: 6811 [2023-11-29 00:04:50,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 487 GetRequests, 444 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=163, Invalid=1729, Unknown=0, NotChecked=0, Total=1892 [2023-11-29 00:04:50,656 INFO L413 NwaCegarLoop]: 803 mSDtfsCounter, 533 mSDsluCounter, 7281 mSDsCounter, 0 mSdLazyCounter, 8096 mSolverCounterSat, 412 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 8084 SdHoareTripleChecker+Invalid, 8510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 412 IncrementalHoareTripleChecker+Valid, 8096 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.9s IncrementalHoareTripleChecker+Time [2023-11-29 00:04:50,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [623 Valid, 8084 Invalid, 8510 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [412 Valid, 8096 Invalid, 2 Unknown, 0 Unchecked, 20.9s Time] [2023-11-29 00:04:50,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6811 states. [2023-11-29 00:04:52,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6811 to 6670. [2023-11-29 00:04:52,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6670 states, 4056 states have (on average 1.2048816568047338) internal successors, (4887), 4175 states have internal predecessors, (4887), 1766 states have call successors, (1766), 784 states have call predecessors, (1766), 843 states have return successors, (1970), 1752 states have call predecessors, (1970), 1764 states have call successors, (1970) [2023-11-29 00:04:52,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6670 states to 6670 states and 8623 transitions. [2023-11-29 00:04:52,466 INFO L78 Accepts]: Start accepts. Automaton has 6670 states and 8623 transitions. Word has length 329 [2023-11-29 00:04:52,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:04:52,466 INFO L495 AbstractCegarLoop]: Abstraction has 6670 states and 8623 transitions. [2023-11-29 00:04:52,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 5.625) internal successors, (90), 13 states have internal predecessors, (90), 5 states have call successors, (41), 5 states have call predecessors, (41), 5 states have return successors, (39), 6 states have call predecessors, (39), 4 states have call successors, (39) [2023-11-29 00:04:52,467 INFO L276 IsEmpty]: Start isEmpty. Operand 6670 states and 8623 transitions. [2023-11-29 00:04:52,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2023-11-29 00:04:52,470 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:04:52,471 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 8, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:04:52,482 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 00:04:52,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:04:52,671 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-29 00:04:52,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:04:52,672 INFO L85 PathProgramCache]: Analyzing trace with hash 75272484, now seen corresponding path program 2 times [2023-11-29 00:04:52,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:04:52,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882370775] [2023-11-29 00:04:52,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:04:52,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:04:52,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:53,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:04:53,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:04:53,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 00:04:53,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 00:04:53,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:53,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:04:53,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:04:53,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-29 00:04:53,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:04:53,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:53,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:04:53,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:04:53,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 00:04:53,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:53,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:04:53,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:04:53,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-29 00:04:53,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:53,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:04:53,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:04:53,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-29 00:04:53,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:53,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:04:53,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:04:53,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-29 00:04:53,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-29 00:04:53,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-29 00:04:53,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:53,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:53,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:53,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:04:53,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 00:04:53,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:53,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:04:53,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 00:04:53,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 00:04:53,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:04:53,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-11-29 00:04:53,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-11-29 00:04:53,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-11-29 00:04:53,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:53,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:53,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:53,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:04:53,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 00:04:53,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:53,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-29 00:04:53,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2023-11-29 00:04:53,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-11-29 00:04:53,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:53,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:53,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:53,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:04:53,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 00:04:53,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:53,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-29 00:04:53,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2023-11-29 00:04:53,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:53,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:53,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:04:53,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 00:04:53,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 00:04:53,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2023-11-29 00:04:53,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2023-11-29 00:04:53,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2023-11-29 00:04:53,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:04:53,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2023-11-29 00:04:53,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2023-11-29 00:04:53,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2023-11-29 00:04:53,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:04:53,972 INFO L134 CoverageAnalysis]: Checked inductivity of 733 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 719 trivial. 0 not checked. [2023-11-29 00:04:53,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:04:53,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882370775] [2023-11-29 00:04:53,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882370775] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:04:53,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [358895576] [2023-11-29 00:04:53,972 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:04:53,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:04:53,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:04:53,973 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:04:53,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 00:04:55,035 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 00:04:55,035 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:04:55,041 INFO L262 TraceCheckSpWp]: Trace formula consists of 1233 conjuncts, 46 conjunts are in the unsatisfiable core [2023-11-29 00:04:55,046 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:04:55,061 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-29 00:04:55,064 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-29 00:04:55,290 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2023-11-29 00:04:55,293 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-29 00:04:55,374 INFO L134 CoverageAnalysis]: Checked inductivity of 733 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 733 trivial. 0 not checked. [2023-11-29 00:04:55,374 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:04:55,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [358895576] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:04:55,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:04:55,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [14] total 23 [2023-11-29 00:04:55,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316394935] [2023-11-29 00:04:55,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:04:55,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 00:04:55,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:04:55,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 00:04:55,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=456, Unknown=0, NotChecked=0, Total=506 [2023-11-29 00:04:55,377 INFO L87 Difference]: Start difference. First operand 6670 states and 8623 transitions. Second operand has 11 states, 10 states have (on average 8.8) internal successors, (88), 9 states have internal predecessors, (88), 4 states have call successors, (41), 5 states have call predecessors, (41), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2023-11-29 00:05:04,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 00:05:16,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 00:05:17,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:05:17,905 INFO L93 Difference]: Finished difference Result 9998 states and 12852 transitions. [2023-11-29 00:05:17,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 00:05:17,906 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.8) internal successors, (88), 9 states have internal predecessors, (88), 4 states have call successors, (41), 5 states have call predecessors, (41), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 342 [2023-11-29 00:05:17,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:05:17,918 INFO L225 Difference]: With dead ends: 9998 [2023-11-29 00:05:17,918 INFO L226 Difference]: Without dead ends: 7318 [2023-11-29 00:05:17,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 498 GetRequests, 468 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=105, Invalid=825, Unknown=0, NotChecked=0, Total=930 [2023-11-29 00:05:17,923 INFO L413 NwaCegarLoop]: 802 mSDtfsCounter, 603 mSDsluCounter, 4347 mSDsCounter, 0 mSdLazyCounter, 6351 mSolverCounterSat, 402 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 5149 SdHoareTripleChecker+Invalid, 6755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 402 IncrementalHoareTripleChecker+Valid, 6351 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.8s IncrementalHoareTripleChecker+Time [2023-11-29 00:05:17,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [732 Valid, 5149 Invalid, 6755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [402 Valid, 6351 Invalid, 2 Unknown, 0 Unchecked, 19.8s Time] [2023-11-29 00:05:17,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7318 states. [2023-11-29 00:05:19,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7318 to 7075. [2023-11-29 00:05:19,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7075 states, 4292 states have (on average 1.1966449207828518) internal successors, (5136), 4415 states have internal predecessors, (5136), 1875 states have call successors, (1875), 840 states have call predecessors, (1875), 903 states have return successors, (2083), 1863 states have call predecessors, (2083), 1873 states have call successors, (2083) [2023-11-29 00:05:19,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7075 states to 7075 states and 9094 transitions. [2023-11-29 00:05:19,889 INFO L78 Accepts]: Start accepts. Automaton has 7075 states and 9094 transitions. Word has length 342 [2023-11-29 00:05:19,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:05:19,890 INFO L495 AbstractCegarLoop]: Abstraction has 7075 states and 9094 transitions. [2023-11-29 00:05:19,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.8) internal successors, (88), 9 states have internal predecessors, (88), 4 states have call successors, (41), 5 states have call predecessors, (41), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2023-11-29 00:05:19,890 INFO L276 IsEmpty]: Start isEmpty. Operand 7075 states and 9094 transitions. [2023-11-29 00:05:19,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2023-11-29 00:05:19,894 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:05:19,894 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 11, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:05:19,905 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 00:05:20,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:05:20,095 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-29 00:05:20,095 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:05:20,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1565061723, now seen corresponding path program 1 times [2023-11-29 00:05:20,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:05:20,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310137808] [2023-11-29 00:05:20,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:05:20,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:05:20,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:20,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:05:20,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:05:20,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 00:05:20,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-29 00:05:20,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-29 00:05:20,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-29 00:05:20,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:20,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-29 00:05:20,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:05:20,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 00:05:20,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-29 00:05:20,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:20,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:05:20,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:05:20,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-29 00:05:20,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:20,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:05:20,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:05:20,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-29 00:05:20,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:20,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:05:20,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:05:20,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-29 00:05:20,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-29 00:05:20,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-29 00:05:20,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:20,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:05:20,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 00:05:20,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 00:05:20,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-29 00:05:20,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:20,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-29 00:05:20,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-11-29 00:05:20,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:20,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:05:20,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-11-29 00:05:20,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:20,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-11-29 00:05:20,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-11-29 00:05:20,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-29 00:05:20,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-11-29 00:05:20,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-11-29 00:05:20,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-29 00:05:20,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:20,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:20,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:05:20,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-11-29 00:05:20,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:20,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-11-29 00:05:20,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:20,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-11-29 00:05:20,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2023-11-29 00:05:20,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2023-11-29 00:05:20,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-11-29 00:05:20,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:20,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2023-11-29 00:05:20,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:20,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:05:20,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2023-11-29 00:05:20,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:20,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2023-11-29 00:05:20,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:20,504 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 475 trivial. 0 not checked. [2023-11-29 00:05:20,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:05:20,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310137808] [2023-11-29 00:05:20,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310137808] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:05:20,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:05:20,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 00:05:20,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352700094] [2023-11-29 00:05:20,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:05:20,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 00:05:20,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:05:20,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 00:05:20,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-29 00:05:20,506 INFO L87 Difference]: Start difference. First operand 7075 states and 9094 transitions. Second operand has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 3 states have internal predecessors, (125), 2 states have call successors, (53), 8 states have call predecessors, (53), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2023-11-29 00:05:29,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:05:29,784 INFO L93 Difference]: Finished difference Result 12130 states and 15626 transitions. [2023-11-29 00:05:29,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 00:05:29,785 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 3 states have internal predecessors, (125), 2 states have call successors, (53), 8 states have call predecessors, (53), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 324 [2023-11-29 00:05:29,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:05:29,796 INFO L225 Difference]: With dead ends: 12130 [2023-11-29 00:05:29,796 INFO L226 Difference]: Without dead ends: 7217 [2023-11-29 00:05:29,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2023-11-29 00:05:29,802 INFO L413 NwaCegarLoop]: 767 mSDtfsCounter, 1460 mSDsluCounter, 2538 mSDsCounter, 0 mSdLazyCounter, 2779 mSolverCounterSat, 1907 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1460 SdHoareTripleChecker+Valid, 3305 SdHoareTripleChecker+Invalid, 4686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1907 IncrementalHoareTripleChecker+Valid, 2779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2023-11-29 00:05:29,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1460 Valid, 3305 Invalid, 4686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1907 Valid, 2779 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2023-11-29 00:05:29,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7217 states. [2023-11-29 00:05:31,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7217 to 7077. [2023-11-29 00:05:31,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7077 states, 4294 states have (on average 1.1965533302282254) internal successors, (5138), 4417 states have internal predecessors, (5138), 1875 states have call successors, (1875), 840 states have call predecessors, (1875), 903 states have return successors, (2083), 1863 states have call predecessors, (2083), 1873 states have call successors, (2083) [2023-11-29 00:05:31,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7077 states to 7077 states and 9096 transitions. [2023-11-29 00:05:31,730 INFO L78 Accepts]: Start accepts. Automaton has 7077 states and 9096 transitions. Word has length 324 [2023-11-29 00:05:31,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:05:31,730 INFO L495 AbstractCegarLoop]: Abstraction has 7077 states and 9096 transitions. [2023-11-29 00:05:31,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 3 states have internal predecessors, (125), 2 states have call successors, (53), 8 states have call predecessors, (53), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2023-11-29 00:05:31,730 INFO L276 IsEmpty]: Start isEmpty. Operand 7077 states and 9096 transitions. [2023-11-29 00:05:31,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2023-11-29 00:05:31,734 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:05:31,734 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 11, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:05:31,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2023-11-29 00:05:31,734 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-29 00:05:31,735 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:05:31,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1447733287, now seen corresponding path program 1 times [2023-11-29 00:05:31,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:05:31,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141513672] [2023-11-29 00:05:31,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:05:31,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:05:31,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:32,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:05:32,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:05:32,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 00:05:32,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-29 00:05:32,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-29 00:05:32,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-29 00:05:32,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:32,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-29 00:05:32,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:05:32,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 00:05:32,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-29 00:05:32,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:32,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:05:32,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:05:32,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-29 00:05:32,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:32,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:05:32,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:05:32,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-29 00:05:32,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:32,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:05:32,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:05:32,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-29 00:05:32,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-29 00:05:32,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-29 00:05:32,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:32,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:05:32,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 00:05:32,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 00:05:32,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-29 00:05:32,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:32,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-29 00:05:32,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-11-29 00:05:32,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:32,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:05:32,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-11-29 00:05:32,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:32,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-11-29 00:05:32,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-11-29 00:05:32,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-29 00:05:32,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-11-29 00:05:32,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-11-29 00:05:32,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-29 00:05:32,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:32,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:32,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:05:32,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-11-29 00:05:32,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:32,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-11-29 00:05:32,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:32,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-11-29 00:05:32,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2023-11-29 00:05:32,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2023-11-29 00:05:32,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-11-29 00:05:32,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:32,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2023-11-29 00:05:32,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:32,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:05:32,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2023-11-29 00:05:32,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:32,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2023-11-29 00:05:32,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:32,475 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 2 proven. 24 refuted. 0 times theorem prover too weak. 449 trivial. 0 not checked. [2023-11-29 00:05:32,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:05:32,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141513672] [2023-11-29 00:05:32,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141513672] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:05:32,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1225743591] [2023-11-29 00:05:32,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:05:32,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:05:32,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:05:32,477 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:05:32,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 00:05:33,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:33,572 INFO L262 TraceCheckSpWp]: Trace formula consists of 2759 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 00:05:33,577 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:05:33,595 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2023-11-29 00:05:33,595 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:05:33,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1225743591] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:05:33,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:05:33,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 12 [2023-11-29 00:05:33,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035783284] [2023-11-29 00:05:33,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:05:33,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:05:33,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:05:33,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:05:33,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-11-29 00:05:33,597 INFO L87 Difference]: Start difference. First operand 7077 states and 9096 transitions. Second operand has 6 states, 5 states have (on average 26.0) internal successors, (130), 6 states have internal predecessors, (130), 3 states have call successors, (53), 2 states have call predecessors, (53), 3 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2023-11-29 00:05:38,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:05:38,035 INFO L93 Difference]: Finished difference Result 12138 states and 15575 transitions. [2023-11-29 00:05:38,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 00:05:38,036 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 26.0) internal successors, (130), 6 states have internal predecessors, (130), 3 states have call successors, (53), 2 states have call predecessors, (53), 3 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) Word has length 324 [2023-11-29 00:05:38,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:05:38,048 INFO L225 Difference]: With dead ends: 12138 [2023-11-29 00:05:38,049 INFO L226 Difference]: Without dead ends: 7077 [2023-11-29 00:05:38,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 454 GetRequests, 442 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2023-11-29 00:05:38,055 INFO L413 NwaCegarLoop]: 1011 mSDtfsCounter, 499 mSDsluCounter, 3318 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 4329 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-29 00:05:38,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [645 Valid, 4329 Invalid, 746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-29 00:05:38,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7077 states. [2023-11-29 00:05:40,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7077 to 7075. [2023-11-29 00:05:40,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7075 states, 4293 states have (on average 1.196366177498253) internal successors, (5136), 4416 states have internal predecessors, (5136), 1874 states have call successors, (1874), 840 states have call predecessors, (1874), 903 states have return successors, (2082), 1862 states have call predecessors, (2082), 1872 states have call successors, (2082) [2023-11-29 00:05:40,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7075 states to 7075 states and 9092 transitions. [2023-11-29 00:05:40,030 INFO L78 Accepts]: Start accepts. Automaton has 7075 states and 9092 transitions. Word has length 324 [2023-11-29 00:05:40,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:05:40,030 INFO L495 AbstractCegarLoop]: Abstraction has 7075 states and 9092 transitions. [2023-11-29 00:05:40,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 26.0) internal successors, (130), 6 states have internal predecessors, (130), 3 states have call successors, (53), 2 states have call predecessors, (53), 3 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2023-11-29 00:05:40,030 INFO L276 IsEmpty]: Start isEmpty. Operand 7075 states and 9092 transitions. [2023-11-29 00:05:40,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2023-11-29 00:05:40,033 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:05:40,034 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 8, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:05:40,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 00:05:40,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2023-11-29 00:05:40,234 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-29 00:05:40,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:05:40,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1592664887, now seen corresponding path program 1 times [2023-11-29 00:05:40,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:05:40,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301461798] [2023-11-29 00:05:40,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:05:40,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:05:40,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:41,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:05:41,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:05:41,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 00:05:41,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 00:05:41,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:41,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:05:41,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:05:41,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-29 00:05:41,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:05:41,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:41,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:05:41,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:05:41,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 00:05:41,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:41,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:05:41,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:05:41,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-29 00:05:41,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:41,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:05:41,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:05:41,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-29 00:05:41,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:41,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:05:41,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:05:41,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-29 00:05:41,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-29 00:05:41,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-29 00:05:41,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:41,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:41,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:41,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:05:41,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 00:05:41,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:41,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:05:41,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 00:05:41,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 00:05:41,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:05:41,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-11-29 00:05:41,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-11-29 00:05:41,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-11-29 00:05:41,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:41,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:41,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:41,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:05:41,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 00:05:41,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:41,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-29 00:05:41,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2023-11-29 00:05:41,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-11-29 00:05:41,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:41,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:41,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:41,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:05:41,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 00:05:41,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:41,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-29 00:05:41,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2023-11-29 00:05:41,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:41,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:41,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:05:41,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 00:05:41,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 00:05:41,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2023-11-29 00:05:41,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2023-11-29 00:05:41,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2023-11-29 00:05:41,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:41,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2023-11-29 00:05:41,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2023-11-29 00:05:41,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:41,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:41,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:41,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:05:41,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 00:05:41,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:41,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-29 00:05:41,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2023-11-29 00:05:41,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2023-11-29 00:05:41,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:41,724 INFO L134 CoverageAnalysis]: Checked inductivity of 867 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 867 trivial. 0 not checked. [2023-11-29 00:05:41,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:05:41,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301461798] [2023-11-29 00:05:41,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301461798] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:05:41,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:05:41,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 00:05:41,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973420169] [2023-11-29 00:05:41,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:05:41,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 00:05:41,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:05:41,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 00:05:41,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-29 00:05:41,727 INFO L87 Difference]: Start difference. First operand 7075 states and 9092 transitions. Second operand has 10 states, 10 states have (on average 9.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (42), 8 states have call predecessors, (42), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2023-11-29 00:05:51,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:05:51,375 INFO L93 Difference]: Finished difference Result 14259 states and 18382 transitions. [2023-11-29 00:05:51,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 00:05:51,375 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (42), 8 states have call predecessors, (42), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 381 [2023-11-29 00:05:51,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:05:51,388 INFO L225 Difference]: With dead ends: 14259 [2023-11-29 00:05:51,388 INFO L226 Difference]: Without dead ends: 7289 [2023-11-29 00:05:51,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2023-11-29 00:05:51,396 INFO L413 NwaCegarLoop]: 753 mSDtfsCounter, 992 mSDsluCounter, 2981 mSDsCounter, 0 mSdLazyCounter, 3478 mSolverCounterSat, 1328 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 993 SdHoareTripleChecker+Valid, 3734 SdHoareTripleChecker+Invalid, 4806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1328 IncrementalHoareTripleChecker+Valid, 3478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:05:51,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [993 Valid, 3734 Invalid, 4806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1328 Valid, 3478 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2023-11-29 00:05:51,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7289 states. [2023-11-29 00:05:53,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7289 to 7087. [2023-11-29 00:05:53,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7087 states, 4305 states have (on average 1.1972125435540069) internal successors, (5154), 4428 states have internal predecessors, (5154), 1874 states have call successors, (1874), 840 states have call predecessors, (1874), 903 states have return successors, (2082), 1862 states have call predecessors, (2082), 1872 states have call successors, (2082) [2023-11-29 00:05:53,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7087 states to 7087 states and 9110 transitions. [2023-11-29 00:05:53,376 INFO L78 Accepts]: Start accepts. Automaton has 7087 states and 9110 transitions. Word has length 381 [2023-11-29 00:05:53,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:05:53,376 INFO L495 AbstractCegarLoop]: Abstraction has 7087 states and 9110 transitions. [2023-11-29 00:05:53,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (42), 8 states have call predecessors, (42), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2023-11-29 00:05:53,376 INFO L276 IsEmpty]: Start isEmpty. Operand 7087 states and 9110 transitions. [2023-11-29 00:05:53,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2023-11-29 00:05:53,380 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:05:53,380 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 8, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:05:53,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2023-11-29 00:05:53,380 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-29 00:05:53,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:05:53,381 INFO L85 PathProgramCache]: Analyzing trace with hash -724668220, now seen corresponding path program 1 times [2023-11-29 00:05:53,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:05:53,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001703241] [2023-11-29 00:05:53,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:05:53,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:05:53,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:54,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:05:54,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:05:54,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 00:05:54,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 00:05:54,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:54,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:05:54,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:05:54,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-29 00:05:54,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:05:54,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:54,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:05:54,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:05:54,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 00:05:54,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:54,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:05:54,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:05:54,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-29 00:05:54,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:54,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:05:54,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:05:54,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-29 00:05:54,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:54,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:05:54,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:05:54,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-29 00:05:54,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-29 00:05:54,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-29 00:05:54,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:54,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:54,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:54,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:05:54,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 00:05:54,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:54,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:05:54,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 00:05:54,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 00:05:54,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:05:54,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-11-29 00:05:54,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-11-29 00:05:54,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-11-29 00:05:54,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:54,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:54,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:54,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:05:54,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 00:05:54,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:54,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-29 00:05:54,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-11-29 00:05:54,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-11-29 00:05:54,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:54,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:54,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:54,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:05:54,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 00:05:54,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:54,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-29 00:05:54,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-11-29 00:05:54,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:54,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:54,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:05:54,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 00:05:54,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 00:05:54,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2023-11-29 00:05:54,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2023-11-29 00:05:54,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2023-11-29 00:05:54,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:54,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2023-11-29 00:05:54,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2023-11-29 00:05:54,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:54,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:54,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:54,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:05:54,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 00:05:54,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:05:54,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-29 00:05:54,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2023-11-29 00:05:54,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2023-11-29 00:05:54,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:05:54,642 INFO L134 CoverageAnalysis]: Checked inductivity of 869 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 869 trivial. 0 not checked. [2023-11-29 00:05:54,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:05:54,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001703241] [2023-11-29 00:05:54,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001703241] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:05:54,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:05:54,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 00:05:54,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118719337] [2023-11-29 00:05:54,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:05:54,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 00:05:54,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:05:54,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 00:05:54,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-29 00:05:54,644 INFO L87 Difference]: Start difference. First operand 7087 states and 9110 transitions. Second operand has 10 states, 10 states have (on average 9.4) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (42), 8 states have call predecessors, (42), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2023-11-29 00:06:03,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:06:03,488 INFO L93 Difference]: Finished difference Result 14177 states and 18276 transitions. [2023-11-29 00:06:03,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 00:06:03,489 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (42), 8 states have call predecessors, (42), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 386 [2023-11-29 00:06:03,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:06:03,504 INFO L225 Difference]: With dead ends: 14177 [2023-11-29 00:06:03,504 INFO L226 Difference]: Without dead ends: 7237 [2023-11-29 00:06:03,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2023-11-29 00:06:03,513 INFO L413 NwaCegarLoop]: 750 mSDtfsCounter, 997 mSDsluCounter, 2641 mSDsCounter, 0 mSdLazyCounter, 3177 mSolverCounterSat, 1338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 999 SdHoareTripleChecker+Valid, 3391 SdHoareTripleChecker+Invalid, 4515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1338 IncrementalHoareTripleChecker+Valid, 3177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-11-29 00:06:03,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [999 Valid, 3391 Invalid, 4515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1338 Valid, 3177 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2023-11-29 00:06:03,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7237 states. [2023-11-29 00:06:05,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7237 to 6850. [2023-11-29 00:06:05,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6850 states, 4167 states have (on average 1.2020638348932084) internal successors, (5009), 4288 states have internal predecessors, (5009), 1811 states have call successors, (1811), 806 states have call predecessors, (1811), 867 states have return successors, (2016), 1798 states have call predecessors, (2016), 1809 states have call successors, (2016) [2023-11-29 00:06:05,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6850 states to 6850 states and 8836 transitions. [2023-11-29 00:06:05,407 INFO L78 Accepts]: Start accepts. Automaton has 6850 states and 8836 transitions. Word has length 386 [2023-11-29 00:06:05,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:06:05,408 INFO L495 AbstractCegarLoop]: Abstraction has 6850 states and 8836 transitions. [2023-11-29 00:06:05,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (42), 8 states have call predecessors, (42), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2023-11-29 00:06:05,408 INFO L276 IsEmpty]: Start isEmpty. Operand 6850 states and 8836 transitions. [2023-11-29 00:06:05,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2023-11-29 00:06:05,411 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:06:05,411 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 8, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:06:05,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2023-11-29 00:06:05,411 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-29 00:06:05,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:06:05,412 INFO L85 PathProgramCache]: Analyzing trace with hash 347326681, now seen corresponding path program 1 times [2023-11-29 00:06:05,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:06:05,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35927930] [2023-11-29 00:06:05,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:06:05,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:06:05,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:06,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:06:06,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:06:06,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 00:06:06,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 00:06:06,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:06,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:06:06,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:06:06,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-29 00:06:06,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:06:06,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:06,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:06:06,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:06:06,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 00:06:06,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:06,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:06:06,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:06:06,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-29 00:06:06,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:06,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:06:06,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:06:06,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-29 00:06:06,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:06,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:06:06,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:06:06,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-29 00:06:06,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-29 00:06:06,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-29 00:06:06,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:06,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:06,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:06,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:06:06,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 00:06:06,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:06,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:06:06,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 00:06:06,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 00:06:06,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:06:06,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-11-29 00:06:06,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-11-29 00:06:06,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2023-11-29 00:06:06,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:06,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:06,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:06,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:06:06,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 00:06:06,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:06,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-29 00:06:06,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-11-29 00:06:06,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-11-29 00:06:06,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:06,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:06,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:06,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:06:06,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 00:06:06,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:06,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-29 00:06:06,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2023-11-29 00:06:06,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:06,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:06,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:06:06,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 00:06:06,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 00:06:06,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-11-29 00:06:06,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2023-11-29 00:06:06,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2023-11-29 00:06:06,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:06,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2023-11-29 00:06:06,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2023-11-29 00:06:06,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:06,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:06,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:06,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:06:06,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 00:06:06,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:06,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-29 00:06:06,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2023-11-29 00:06:06,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2023-11-29 00:06:06,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:06,854 INFO L134 CoverageAnalysis]: Checked inductivity of 876 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 856 trivial. 0 not checked. [2023-11-29 00:06:06,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:06:06,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35927930] [2023-11-29 00:06:06,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35927930] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:06:06,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [134185716] [2023-11-29 00:06:06,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:06:06,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:06:06,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:06:06,855 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:06:06,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 00:06:24,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:24,170 INFO L262 TraceCheckSpWp]: Trace formula consists of 3001 conjuncts, 37 conjunts are in the unsatisfiable core [2023-11-29 00:06:24,176 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:06:24,214 INFO L134 CoverageAnalysis]: Checked inductivity of 876 backedges. 361 proven. 0 refuted. 0 times theorem prover too weak. 515 trivial. 0 not checked. [2023-11-29 00:06:24,214 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:06:24,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [134185716] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:06:24,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:06:24,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [14] total 14 [2023-11-29 00:06:24,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285078541] [2023-11-29 00:06:24,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:06:24,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 00:06:24,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:06:24,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 00:06:24,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2023-11-29 00:06:24,216 INFO L87 Difference]: Start difference. First operand 6850 states and 8836 transitions. Second operand has 8 states, 7 states have (on average 17.857142857142858) internal successors, (125), 6 states have internal predecessors, (125), 3 states have call successors, (53), 2 states have call predecessors, (53), 4 states have return successors, (52), 5 states have call predecessors, (52), 3 states have call successors, (52) [2023-11-29 00:06:29,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:06:29,839 INFO L93 Difference]: Finished difference Result 13584 states and 17515 transitions. [2023-11-29 00:06:29,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 00:06:29,840 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 17.857142857142858) internal successors, (125), 6 states have internal predecessors, (125), 3 states have call successors, (53), 2 states have call predecessors, (53), 4 states have return successors, (52), 5 states have call predecessors, (52), 3 states have call successors, (52) Word has length 391 [2023-11-29 00:06:29,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:06:29,851 INFO L225 Difference]: With dead ends: 13584 [2023-11-29 00:06:29,851 INFO L226 Difference]: Without dead ends: 6864 [2023-11-29 00:06:29,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 555 GetRequests, 542 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2023-11-29 00:06:29,859 INFO L413 NwaCegarLoop]: 1025 mSDtfsCounter, 1 mSDsluCounter, 6146 mSDsCounter, 0 mSdLazyCounter, 822 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 7171 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-11-29 00:06:29,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 7171 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 822 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-11-29 00:06:29,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6864 states. [2023-11-29 00:06:31,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6864 to 6856. [2023-11-29 00:06:31,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6856 states, 4171 states have (on average 1.2018700551426515) internal successors, (5013), 4291 states have internal predecessors, (5013), 1812 states have call successors, (1812), 806 states have call predecessors, (1812), 868 states have return successors, (2019), 1801 states have call predecessors, (2019), 1810 states have call successors, (2019) [2023-11-29 00:06:31,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6856 states to 6856 states and 8844 transitions. [2023-11-29 00:06:31,745 INFO L78 Accepts]: Start accepts. Automaton has 6856 states and 8844 transitions. Word has length 391 [2023-11-29 00:06:31,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:06:31,745 INFO L495 AbstractCegarLoop]: Abstraction has 6856 states and 8844 transitions. [2023-11-29 00:06:31,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 17.857142857142858) internal successors, (125), 6 states have internal predecessors, (125), 3 states have call successors, (53), 2 states have call predecessors, (53), 4 states have return successors, (52), 5 states have call predecessors, (52), 3 states have call successors, (52) [2023-11-29 00:06:31,745 INFO L276 IsEmpty]: Start isEmpty. Operand 6856 states and 8844 transitions. [2023-11-29 00:06:31,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2023-11-29 00:06:31,749 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:06:31,749 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 10, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:06:31,767 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-29 00:06:31,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2023-11-29 00:06:31,950 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-29 00:06:31,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:06:31,950 INFO L85 PathProgramCache]: Analyzing trace with hash 122237143, now seen corresponding path program 2 times [2023-11-29 00:06:31,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:06:31,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100719954] [2023-11-29 00:06:31,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:06:31,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:06:32,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:34,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:06:34,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:06:34,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 00:06:34,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 00:06:34,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:34,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:06:34,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:06:34,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-29 00:06:34,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:06:34,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:34,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:06:34,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:06:34,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 00:06:34,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:34,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:06:34,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:06:34,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-29 00:06:34,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:34,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:06:34,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:06:34,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-29 00:06:34,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:34,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:06:34,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:06:34,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-29 00:06:34,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-29 00:06:34,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-29 00:06:34,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:34,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:34,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:34,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:06:34,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 00:06:34,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:34,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:06:34,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 00:06:34,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 00:06:34,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:06:34,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-11-29 00:06:34,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-11-29 00:06:34,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2023-11-29 00:06:34,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:34,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:34,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:34,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:06:34,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 00:06:34,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:34,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:06:34,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 00:06:34,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 00:06:34,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:06:34,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2023-11-29 00:06:34,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-11-29 00:06:34,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:34,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:34,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:34,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:06:34,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 00:06:34,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:34,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:06:34,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 00:06:34,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 00:06:34,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:06:34,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2023-11-29 00:06:34,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:34,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:34,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:06:34,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 00:06:34,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 00:06:34,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2023-11-29 00:06:34,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2023-11-29 00:06:34,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2023-11-29 00:06:34,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:34,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2023-11-29 00:06:34,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2023-11-29 00:06:34,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:34,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:34,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:34,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:06:34,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 00:06:34,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:06:34,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-29 00:06:34,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2023-11-29 00:06:34,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2023-11-29 00:06:34,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:06:34,452 INFO L134 CoverageAnalysis]: Checked inductivity of 1157 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 1134 trivial. 0 not checked. [2023-11-29 00:06:34,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:06:34,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100719954] [2023-11-29 00:06:34,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100719954] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:06:34,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1691794029] [2023-11-29 00:06:34,453 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:06:34,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:06:34,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:06:34,454 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:06:34,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 00:06:40,524 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:06:40,524 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:06:40,540 INFO L262 TraceCheckSpWp]: Trace formula consists of 3099 conjuncts, 40 conjunts are in the unsatisfiable core [2023-11-29 00:06:40,546 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:06:40,730 INFO L134 CoverageAnalysis]: Checked inductivity of 1157 backedges. 378 proven. 2 refuted. 0 times theorem prover too weak. 777 trivial. 0 not checked. [2023-11-29 00:06:40,730 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:06:41,244 INFO L134 CoverageAnalysis]: Checked inductivity of 1157 backedges. 13 proven. 47 refuted. 0 times theorem prover too weak. 1097 trivial. 0 not checked. [2023-11-29 00:06:41,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1691794029] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:06:41,244 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 00:06:41,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 9, 8] total 28 [2023-11-29 00:06:41,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432346466] [2023-11-29 00:06:41,245 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 00:06:41,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-11-29 00:06:41,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:06:41,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-11-29 00:06:41,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=693, Unknown=0, NotChecked=0, Total=756 [2023-11-29 00:06:41,248 INFO L87 Difference]: Start difference. First operand 6856 states and 8844 transitions. Second operand has 28 states, 24 states have (on average 8.125) internal successors, (195), 18 states have internal predecessors, (195), 7 states have call successors, (106), 8 states have call predecessors, (106), 7 states have return successors, (101), 10 states have call predecessors, (101), 7 states have call successors, (101) [2023-11-29 00:07:01,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:07:01,948 INFO L93 Difference]: Finished difference Result 13335 states and 17189 transitions. [2023-11-29 00:07:01,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-11-29 00:07:01,949 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 24 states have (on average 8.125) internal successors, (195), 18 states have internal predecessors, (195), 7 states have call successors, (106), 8 states have call predecessors, (106), 7 states have return successors, (101), 10 states have call predecessors, (101), 7 states have call successors, (101) Word has length 417 [2023-11-29 00:07:01,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:07:01,962 INFO L225 Difference]: With dead ends: 13335 [2023-11-29 00:07:01,962 INFO L226 Difference]: Without dead ends: 6500 [2023-11-29 00:07:01,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1039 GetRequests, 988 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=332, Invalid=2424, Unknown=0, NotChecked=0, Total=2756 [2023-11-29 00:07:01,972 INFO L413 NwaCegarLoop]: 750 mSDtfsCounter, 1203 mSDsluCounter, 10614 mSDsCounter, 0 mSdLazyCounter, 11874 mSolverCounterSat, 1395 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1266 SdHoareTripleChecker+Valid, 11364 SdHoareTripleChecker+Invalid, 13269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1395 IncrementalHoareTripleChecker+Valid, 11874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.8s IncrementalHoareTripleChecker+Time [2023-11-29 00:07:01,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1266 Valid, 11364 Invalid, 13269 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1395 Valid, 11874 Invalid, 0 Unknown, 0 Unchecked, 17.8s Time] [2023-11-29 00:07:01,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6500 states. [2023-11-29 00:07:03,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6500 to 6345. [2023-11-29 00:07:03,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6345 states, 3878 states have (on average 1.2057761732851986) internal successors, (4676), 3987 states have internal predecessors, (4676), 1651 states have call successors, (1651), 759 states have call predecessors, (1651), 811 states have return successors, (1795), 1636 states have call predecessors, (1795), 1649 states have call successors, (1795) [2023-11-29 00:07:03,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6345 states to 6345 states and 8122 transitions. [2023-11-29 00:07:03,729 INFO L78 Accepts]: Start accepts. Automaton has 6345 states and 8122 transitions. Word has length 417 [2023-11-29 00:07:03,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:07:03,729 INFO L495 AbstractCegarLoop]: Abstraction has 6345 states and 8122 transitions. [2023-11-29 00:07:03,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 24 states have (on average 8.125) internal successors, (195), 18 states have internal predecessors, (195), 7 states have call successors, (106), 8 states have call predecessors, (106), 7 states have return successors, (101), 10 states have call predecessors, (101), 7 states have call successors, (101) [2023-11-29 00:07:03,729 INFO L276 IsEmpty]: Start isEmpty. Operand 6345 states and 8122 transitions. [2023-11-29 00:07:03,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2023-11-29 00:07:03,733 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:07:03,733 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 10, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:07:03,749 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-29 00:07:03,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:07:03,934 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-29 00:07:03,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:07:03,934 INFO L85 PathProgramCache]: Analyzing trace with hash 548272495, now seen corresponding path program 1 times [2023-11-29 00:07:03,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:07:03,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219841598] [2023-11-29 00:07:03,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:07:03,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:07:04,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:04,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:07:04,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:07:04,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 00:07:04,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 00:07:04,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:04,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:07:04,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:07:04,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-29 00:07:04,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:07:04,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:04,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:07:04,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:07:04,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 00:07:04,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-29 00:07:04,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:04,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:07:04,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:07:04,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-29 00:07:04,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:04,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:07:04,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:07:04,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-29 00:07:04,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:04,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:07:04,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:07:04,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-29 00:07:04,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-29 00:07:04,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-29 00:07:04,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:04,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:04,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:04,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:07:04,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 00:07:04,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:04,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:07:04,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 00:07:04,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 00:07:04,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:07:04,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-11-29 00:07:04,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-11-29 00:07:04,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-11-29 00:07:04,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:04,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:04,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:04,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:07:04,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 00:07:04,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:04,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:07:04,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 00:07:04,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 00:07:04,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:07:04,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-11-29 00:07:04,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-11-29 00:07:04,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:04,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:04,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:04,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:07:04,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 00:07:04,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:04,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:07:04,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 00:07:04,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 00:07:04,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:07:04,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-11-29 00:07:04,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:04,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:04,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:07:04,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 00:07:04,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 00:07:04,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2023-11-29 00:07:04,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:04,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2023-11-29 00:07:04,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:05,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2023-11-29 00:07:05,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:05,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:05,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:05,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2023-11-29 00:07:05,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:05,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2023-11-29 00:07:05,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:05,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:05,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:05,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:05,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:05,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:05,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:05,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:07:05,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:05,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 00:07:05,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:05,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:05,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:05,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-29 00:07:05,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:05,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2023-11-29 00:07:05,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:05,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2023-11-29 00:07:05,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:05,058 INFO L134 CoverageAnalysis]: Checked inductivity of 1159 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1159 trivial. 0 not checked. [2023-11-29 00:07:05,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:07:05,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219841598] [2023-11-29 00:07:05,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219841598] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:07:05,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:07:05,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-29 00:07:05,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246427055] [2023-11-29 00:07:05,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:07:05,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 00:07:05,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:07:05,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 00:07:05,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-11-29 00:07:05,060 INFO L87 Difference]: Start difference. First operand 6345 states and 8122 transitions. Second operand has 13 states, 13 states have (on average 7.3076923076923075) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (43), 8 states have call predecessors, (43), 2 states have return successors, (41), 4 states have call predecessors, (41), 4 states have call successors, (41) [2023-11-29 00:07:19,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:07:19,871 INFO L93 Difference]: Finished difference Result 9764 states and 12630 transitions. [2023-11-29 00:07:19,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-11-29 00:07:19,872 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.3076923076923075) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (43), 8 states have call predecessors, (43), 2 states have return successors, (41), 4 states have call predecessors, (41), 4 states have call successors, (41) Word has length 420 [2023-11-29 00:07:19,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:07:19,887 INFO L225 Difference]: With dead ends: 9764 [2023-11-29 00:07:19,887 INFO L226 Difference]: Without dead ends: 9762 [2023-11-29 00:07:19,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 483 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=424, Invalid=1382, Unknown=0, NotChecked=0, Total=1806 [2023-11-29 00:07:19,890 INFO L413 NwaCegarLoop]: 955 mSDtfsCounter, 4526 mSDsluCounter, 5055 mSDsCounter, 0 mSdLazyCounter, 6936 mSolverCounterSat, 3770 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4826 SdHoareTripleChecker+Valid, 6010 SdHoareTripleChecker+Invalid, 10706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3770 IncrementalHoareTripleChecker+Valid, 6936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2023-11-29 00:07:19,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4826 Valid, 6010 Invalid, 10706 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3770 Valid, 6936 Invalid, 0 Unknown, 0 Unchecked, 10.9s Time] [2023-11-29 00:07:19,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9762 states. [2023-11-29 00:07:22,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9762 to 9260. [2023-11-29 00:07:22,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9260 states, 5643 states have (on average 1.2101718943824207) internal successors, (6829), 5814 states have internal predecessors, (6829), 2439 states have call successors, (2439), 1071 states have call predecessors, (2439), 1173 states have return successors, (2715), 2430 states have call predecessors, (2715), 2437 states have call successors, (2715) [2023-11-29 00:07:22,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9260 states to 9260 states and 11983 transitions. [2023-11-29 00:07:22,458 INFO L78 Accepts]: Start accepts. Automaton has 9260 states and 11983 transitions. Word has length 420 [2023-11-29 00:07:22,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:07:22,458 INFO L495 AbstractCegarLoop]: Abstraction has 9260 states and 11983 transitions. [2023-11-29 00:07:22,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.3076923076923075) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (43), 8 states have call predecessors, (43), 2 states have return successors, (41), 4 states have call predecessors, (41), 4 states have call successors, (41) [2023-11-29 00:07:22,458 INFO L276 IsEmpty]: Start isEmpty. Operand 9260 states and 11983 transitions. [2023-11-29 00:07:22,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2023-11-29 00:07:22,463 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:07:22,463 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 11, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:07:22,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2023-11-29 00:07:22,463 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-29 00:07:22,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:07:22,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1181424935, now seen corresponding path program 1 times [2023-11-29 00:07:22,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:07:22,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730095181] [2023-11-29 00:07:22,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:07:22,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:07:22,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:23,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:07:23,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:07:23,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 00:07:23,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 00:07:23,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:23,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:07:23,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:07:23,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-29 00:07:23,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:07:23,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:23,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:07:23,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:07:23,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 00:07:23,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-29 00:07:23,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:23,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:07:23,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:07:23,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-29 00:07:23,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:23,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:07:23,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:07:23,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-29 00:07:23,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:23,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:07:23,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:07:23,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-29 00:07:23,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-29 00:07:23,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-29 00:07:23,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:23,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:23,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:23,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:07:23,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 00:07:23,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:23,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:07:23,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 00:07:23,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 00:07:23,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:07:23,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-11-29 00:07:23,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-11-29 00:07:23,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-11-29 00:07:23,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:23,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:23,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:23,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:07:23,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 00:07:23,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:23,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:07:23,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 00:07:23,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 00:07:23,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:07:23,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-11-29 00:07:23,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-11-29 00:07:23,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:23,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:23,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:23,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:07:23,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 00:07:23,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:23,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:07:23,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 00:07:23,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 00:07:23,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:07:23,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-11-29 00:07:23,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:23,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:23,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:07:23,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 00:07:23,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 00:07:23,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2023-11-29 00:07:23,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2023-11-29 00:07:23,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2023-11-29 00:07:23,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:23,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2023-11-29 00:07:23,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2023-11-29 00:07:23,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:23,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:23,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:23,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:07:23,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:23,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 00:07:23,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:24,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:24,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:24,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-29 00:07:24,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:24,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2023-11-29 00:07:24,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:24,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:24,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:24,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:24,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:24,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2023-11-29 00:07:24,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:24,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2023-11-29 00:07:24,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:24,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2023-11-29 00:07:24,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:24,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:24,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:24,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2023-11-29 00:07:24,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:24,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2023-11-29 00:07:24,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:24,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2023-11-29 00:07:24,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:24,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 457 [2023-11-29 00:07:24,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:24,077 INFO L134 CoverageAnalysis]: Checked inductivity of 1365 backedges. 23 proven. 2 refuted. 0 times theorem prover too weak. 1340 trivial. 0 not checked. [2023-11-29 00:07:24,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:07:24,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730095181] [2023-11-29 00:07:24,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730095181] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:07:24,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248700876] [2023-11-29 00:07:24,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:07:24,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:07:24,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:07:24,078 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:07:24,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 00:07:32,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:32,035 INFO L262 TraceCheckSpWp]: Trace formula consists of 3310 conjuncts, 37 conjunts are in the unsatisfiable core [2023-11-29 00:07:32,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:07:32,076 INFO L134 CoverageAnalysis]: Checked inductivity of 1365 backedges. 223 proven. 0 refuted. 0 times theorem prover too weak. 1142 trivial. 0 not checked. [2023-11-29 00:07:32,076 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:07:32,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [248700876] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:07:32,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:07:32,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [15] total 15 [2023-11-29 00:07:32,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135436027] [2023-11-29 00:07:32,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:07:32,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 00:07:32,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:07:32,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 00:07:32,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2023-11-29 00:07:32,078 INFO L87 Difference]: Start difference. First operand 9260 states and 11983 transitions. Second operand has 8 states, 7 states have (on average 18.285714285714285) internal successors, (128), 6 states have internal predecessors, (128), 3 states have call successors, (53), 2 states have call predecessors, (53), 4 states have return successors, (52), 5 states have call predecessors, (52), 3 states have call successors, (52) [2023-11-29 00:07:37,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:07:37,911 INFO L93 Difference]: Finished difference Result 15258 states and 19824 transitions. [2023-11-29 00:07:37,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 00:07:37,912 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 18.285714285714285) internal successors, (128), 6 states have internal predecessors, (128), 3 states have call successors, (53), 2 states have call predecessors, (53), 4 states have return successors, (52), 5 states have call predecessors, (52), 3 states have call successors, (52) Word has length 470 [2023-11-29 00:07:37,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:07:37,927 INFO L225 Difference]: With dead ends: 15258 [2023-11-29 00:07:37,927 INFO L226 Difference]: Without dead ends: 9266 [2023-11-29 00:07:37,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 666 GetRequests, 652 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2023-11-29 00:07:37,935 INFO L413 NwaCegarLoop]: 1025 mSDtfsCounter, 1 mSDsluCounter, 6146 mSDsCounter, 0 mSdLazyCounter, 822 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 7171 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:07:37,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 7171 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 822 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-11-29 00:07:37,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9266 states. [2023-11-29 00:07:40,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9266 to 9266. [2023-11-29 00:07:40,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9266 states, 5647 states have (on average 1.2100230210731362) internal successors, (6833), 5817 states have internal predecessors, (6833), 2440 states have call successors, (2440), 1071 states have call predecessors, (2440), 1174 states have return successors, (2717), 2433 states have call predecessors, (2717), 2438 states have call successors, (2717) [2023-11-29 00:07:40,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9266 states to 9266 states and 11990 transitions. [2023-11-29 00:07:40,501 INFO L78 Accepts]: Start accepts. Automaton has 9266 states and 11990 transitions. Word has length 470 [2023-11-29 00:07:40,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:07:40,501 INFO L495 AbstractCegarLoop]: Abstraction has 9266 states and 11990 transitions. [2023-11-29 00:07:40,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 18.285714285714285) internal successors, (128), 6 states have internal predecessors, (128), 3 states have call successors, (53), 2 states have call predecessors, (53), 4 states have return successors, (52), 5 states have call predecessors, (52), 3 states have call successors, (52) [2023-11-29 00:07:40,502 INFO L276 IsEmpty]: Start isEmpty. Operand 9266 states and 11990 transitions. [2023-11-29 00:07:40,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2023-11-29 00:07:40,506 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:07:40,506 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 11, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:07:40,524 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-29 00:07:40,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:07:40,707 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-29 00:07:40,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:07:40,708 INFO L85 PathProgramCache]: Analyzing trace with hash -791182797, now seen corresponding path program 2 times [2023-11-29 00:07:40,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:07:40,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15790348] [2023-11-29 00:07:40,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:07:40,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:07:40,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:41,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:41,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:41,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:07:41,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:41,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:07:41,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:41,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 00:07:41,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:41,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 00:07:41,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:41,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:41,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:41,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:07:41,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:41,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:07:41,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:41,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-29 00:07:41,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:41,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:07:41,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:41,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:41,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:41,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:07:41,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:41,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:07:41,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:41,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 00:07:41,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:41,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-29 00:07:41,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:41,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:41,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:41,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:07:41,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:41,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:07:41,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:41,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-29 00:07:41,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:41,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:41,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:41,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:07:41,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:41,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:07:41,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:41,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-29 00:07:41,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:41,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:41,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:41,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:07:41,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:41,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:07:41,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-29 00:07:42,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-29 00:07:42,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-29 00:07:42,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:42,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:42,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:42,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:07:42,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 00:07:42,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:42,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:07:42,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 00:07:42,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 00:07:42,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:07:42,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-11-29 00:07:42,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-11-29 00:07:42,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-11-29 00:07:42,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:42,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:42,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:42,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:07:42,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 00:07:42,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:42,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:07:42,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 00:07:42,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 00:07:42,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:07:42,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-11-29 00:07:42,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-11-29 00:07:42,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:42,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:42,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:42,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:07:42,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 00:07:42,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:42,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-29 00:07:42,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2023-11-29 00:07:42,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:42,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:42,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:07:42,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 00:07:42,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 00:07:42,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2023-11-29 00:07:42,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2023-11-29 00:07:42,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2023-11-29 00:07:42,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:42,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2023-11-29 00:07:42,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2023-11-29 00:07:42,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:42,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:42,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:42,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:07:42,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 00:07:42,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:42,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:07:42,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 00:07:42,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 00:07:42,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:07:42,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2023-11-29 00:07:42,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:42,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:42,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2023-11-29 00:07:42,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2023-11-29 00:07:42,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2023-11-29 00:07:42,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:07:42,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2023-11-29 00:07:42,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2023-11-29 00:07:42,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2023-11-29 00:07:42,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 457 [2023-11-29 00:07:42,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,298 INFO L134 CoverageAnalysis]: Checked inductivity of 1365 backedges. 15 proven. 10 refuted. 0 times theorem prover too weak. 1340 trivial. 0 not checked. [2023-11-29 00:07:42,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:07:42,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15790348] [2023-11-29 00:07:42,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15790348] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:07:42,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [574882292] [2023-11-29 00:07:42,298 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:07:42,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:07:42,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:07:42,299 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:07:42,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 00:07:47,862 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:07:47,862 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:07:47,881 INFO L262 TraceCheckSpWp]: Trace formula consists of 3310 conjuncts, 95 conjunts are in the unsatisfiable core [2023-11-29 00:07:47,889 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:07:48,202 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-29 00:07:48,208 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-29 00:07:48,679 INFO L134 CoverageAnalysis]: Checked inductivity of 1365 backedges. 15 proven. 37 refuted. 0 times theorem prover too weak. 1313 trivial. 0 not checked. [2023-11-29 00:07:48,679 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:07:49,658 INFO L134 CoverageAnalysis]: Checked inductivity of 1365 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 1348 trivial. 0 not checked. [2023-11-29 00:07:49,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [574882292] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 00:07:49,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:07:49,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [15, 23] total 48 [2023-11-29 00:07:49,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502452960] [2023-11-29 00:07:49,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:07:49,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 00:07:49,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:07:49,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 00:07:49,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=2134, Unknown=0, NotChecked=0, Total=2256 [2023-11-29 00:07:49,661 INFO L87 Difference]: Start difference. First operand 9266 states and 11990 transitions. Second operand has 15 states, 14 states have (on average 7.857142857142857) internal successors, (110), 11 states have internal predecessors, (110), 5 states have call successors, (49), 4 states have call predecessors, (49), 4 states have return successors, (48), 6 states have call predecessors, (48), 4 states have call successors, (48) [2023-11-29 00:08:10,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:08:10,641 INFO L93 Difference]: Finished difference Result 12217 states and 15828 transitions. [2023-11-29 00:08:10,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 00:08:10,642 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.857142857142857) internal successors, (110), 11 states have internal predecessors, (110), 5 states have call successors, (49), 4 states have call predecessors, (49), 4 states have return successors, (48), 6 states have call predecessors, (48), 4 states have call successors, (48) Word has length 470 [2023-11-29 00:08:10,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:08:10,658 INFO L225 Difference]: With dead ends: 12217 [2023-11-29 00:08:10,658 INFO L226 Difference]: Without dead ends: 9514 [2023-11-29 00:08:10,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1149 GetRequests, 1088 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 598 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=181, Invalid=3359, Unknown=0, NotChecked=0, Total=3540 [2023-11-29 00:08:10,663 INFO L413 NwaCegarLoop]: 797 mSDtfsCounter, 300 mSDsluCounter, 7381 mSDsCounter, 0 mSdLazyCounter, 7313 mSolverCounterSat, 291 mSolverCounterUnsat, 76 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 8178 SdHoareTripleChecker+Invalid, 7680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 291 IncrementalHoareTripleChecker+Valid, 7313 IncrementalHoareTripleChecker+Invalid, 76 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2023-11-29 00:08:10,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 8178 Invalid, 7680 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [291 Valid, 7313 Invalid, 76 Unknown, 0 Unchecked, 16.4s Time] [2023-11-29 00:08:10,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9514 states. [2023-11-29 00:08:13,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9514 to 9278. [2023-11-29 00:08:13,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9278 states, 5653 states have (on average 1.2099770033610473) internal successors, (6840), 5823 states have internal predecessors, (6840), 2445 states have call successors, (2445), 1071 states have call predecessors, (2445), 1175 states have return successors, (2723), 2439 states have call predecessors, (2723), 2443 states have call successors, (2723) [2023-11-29 00:08:13,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9278 states to 9278 states and 12008 transitions. [2023-11-29 00:08:13,477 INFO L78 Accepts]: Start accepts. Automaton has 9278 states and 12008 transitions. Word has length 470 [2023-11-29 00:08:13,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:08:13,477 INFO L495 AbstractCegarLoop]: Abstraction has 9278 states and 12008 transitions. [2023-11-29 00:08:13,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.857142857142857) internal successors, (110), 11 states have internal predecessors, (110), 5 states have call successors, (49), 4 states have call predecessors, (49), 4 states have return successors, (48), 6 states have call predecessors, (48), 4 states have call successors, (48) [2023-11-29 00:08:13,478 INFO L276 IsEmpty]: Start isEmpty. Operand 9278 states and 12008 transitions. [2023-11-29 00:08:13,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 497 [2023-11-29 00:08:13,483 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:08:13,483 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 13, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:08:13,499 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-11-29 00:08:13,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:08:13,684 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2023-11-29 00:08:13,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:08:13,684 INFO L85 PathProgramCache]: Analyzing trace with hash -881203440, now seen corresponding path program 1 times [2023-11-29 00:08:13,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:08:13,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937417347] [2023-11-29 00:08:13,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:08:13,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:08:13,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:08:14,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:08:14,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:08:14,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 00:08:14,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 00:08:14,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:08:14,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:08:14,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:08:14,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-29 00:08:14,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:08:14,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:08:14,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:08:14,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:08:14,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 00:08:14,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-29 00:08:14,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:08:14,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:08:14,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:08:14,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-29 00:08:14,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:08:14,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:08:14,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:08:14,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-29 00:08:14,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:08:14,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:08:14,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:08:14,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-29 00:08:14,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-29 00:08:14,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-29 00:08:14,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:08:14,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:08:14,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:08:14,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:08:14,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 00:08:14,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:08:14,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:08:14,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 00:08:14,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 00:08:14,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:08:14,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-11-29 00:08:14,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-11-29 00:08:14,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-11-29 00:08:14,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:08:14,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:08:14,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:08:14,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:08:14,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 00:08:14,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:08:14,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:08:14,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 00:08:14,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 00:08:14,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:08:14,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-11-29 00:08:14,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-11-29 00:08:14,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:08:14,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:08:14,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:08:14,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:08:14,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 00:08:14,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:08:14,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:08:14,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 00:08:14,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 00:08:14,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:08:14,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:14,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-11-29 00:08:14,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:15,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:08:15,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:15,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:08:15,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:15,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:08:15,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:15,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 00:08:15,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:15,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 00:08:15,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:15,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2023-11-29 00:08:15,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:15,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2023-11-29 00:08:15,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:15,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2023-11-29 00:08:15,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:15,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:08:15,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:15,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2023-11-29 00:08:15,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:15,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2023-11-29 00:08:15,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:15,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:08:15,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:15,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:08:15,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:15,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:08:15,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:15,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-29 00:08:15,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:15,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 00:08:15,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:15,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:08:15,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:15,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:08:15,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:15,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 00:08:15,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:15,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 00:08:15,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:15,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-29 00:08:15,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:15,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2023-11-29 00:08:15,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:15,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:08:15,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:15,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:08:15,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:15,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:08:15,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:15,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 00:08:15,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:15,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 00:08:15,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:15,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2023-11-29 00:08:15,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:15,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 445 [2023-11-29 00:08:15,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:15,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2023-11-29 00:08:15,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:15,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:08:15,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:15,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2023-11-29 00:08:15,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:15,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 467 [2023-11-29 00:08:15,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:15,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 473 [2023-11-29 00:08:15,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:15,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 483 [2023-11-29 00:08:15,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:15,223 INFO L134 CoverageAnalysis]: Checked inductivity of 1738 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 1730 trivial. 0 not checked. [2023-11-29 00:08:15,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:08:15,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937417347] [2023-11-29 00:08:15,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937417347] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:08:15,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1717313161] [2023-11-29 00:08:15,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:08:15,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:08:15,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:08:15,224 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:08:15,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a371528d-d492-479d-aecc-20a0a85e58d6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 00:08:16,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:16,595 INFO L262 TraceCheckSpWp]: Trace formula consists of 3409 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 00:08:16,603 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:08:17,132 INFO L134 CoverageAnalysis]: Checked inductivity of 1738 backedges. 567 proven. 372 refuted. 0 times theorem prover too weak. 799 trivial. 0 not checked. [2023-11-29 00:08:17,132 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:08:17,735 INFO L134 CoverageAnalysis]: Checked inductivity of 1738 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1729 trivial. 0 not checked. [2023-11-29 00:08:17,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1717313161] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:08:17,735 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 00:08:17,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 9, 12] total 26 [2023-11-29 00:08:17,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095542248] [2023-11-29 00:08:17,736 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 00:08:17,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-29 00:08:17,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:08:17,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-29 00:08:17,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=538, Unknown=0, NotChecked=0, Total=650 [2023-11-29 00:08:17,738 INFO L87 Difference]: Start difference. First operand 9278 states and 12008 transitions. Second operand has 26 states, 26 states have (on average 9.73076923076923) internal successors, (253), 20 states have internal predecessors, (253), 10 states have call successors, (135), 15 states have call predecessors, (135), 10 states have return successors, (128), 10 states have call predecessors, (128), 10 states have call successors, (128)