./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 2329fc70 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_1b52a78b-2517-4401-84ef-8e59dfbd9a75/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/bin/utaipan-gh47qXpMRh/config/TaipanReach.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_1b52a78b-2517-4401-84ef-8e59dfbd9a75/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5574142529d95f295134c1dccd4c5dbe0383ae5c309e7dc50fd933e5702659ed --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 11:09:33,804 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 11:09:33,806 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 11:09:33,822 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 11:09:33,822 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 11:09:33,823 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 11:09:33,823 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 11:09:33,826 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 11:09:33,829 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 11:09:33,830 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 11:09:33,831 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 11:09:33,833 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 11:09:33,834 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 11:09:33,835 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 11:09:33,837 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 11:09:33,839 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 11:09:33,840 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 11:09:33,841 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 11:09:33,844 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 11:09:33,847 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 11:09:33,849 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 11:09:33,851 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 11:09:33,853 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 11:09:33,854 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 11:09:33,860 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 11:09:33,861 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 11:09:33,861 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 11:09:33,862 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 11:09:33,863 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 11:09:33,864 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 11:09:33,865 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 11:09:33,866 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 11:09:33,867 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 11:09:33,868 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 11:09:33,869 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 11:09:33,869 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 11:09:33,870 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 11:09:33,870 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 11:09:33,870 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 11:09:33,871 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 11:09:33,871 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 11:09:33,872 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 11:09:33,894 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 11:09:33,895 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 11:09:33,895 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 11:09:33,895 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 11:09:33,896 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 11:09:33,896 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 11:09:33,896 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 11:09:33,896 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 11:09:33,897 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 11:09:33,897 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 11:09:33,897 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 11:09:33,897 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 11:09:33,897 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 11:09:33,898 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 11:09:33,898 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 11:09:33,898 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 11:09:33,898 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 11:09:33,898 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 11:09:33,899 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 11:09:33,899 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 11:09:33,899 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 11:09:33,900 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 11:09:33,900 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 11:09:33,900 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 11:09:33,900 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 11:09:33,900 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 11:09:33,900 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 11:09:33,901 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 11:09:33,901 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 11:09:33,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:09:33,901 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 11:09:33,901 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 11:09:33,902 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 11:09:33,902 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 11:09:33,902 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 11:09:33,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 11:09:33,902 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 11:09:33,903 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 11:09:33,903 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5574142529d95f295134c1dccd4c5dbe0383ae5c309e7dc50fd933e5702659ed [2022-12-14 11:09:34,087 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 11:09:34,107 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 11:09:34,109 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 11:09:34,110 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 11:09:34,110 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 11:09:34,111 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i [2022-12-14 11:09:36,772 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 11:09:37,159 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 11:09:37,159 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i [2022-12-14 11:09:37,199 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/bin/utaipan-gh47qXpMRh/data/9ccfa1ee7/7a14a6eb39584411b4536a456d15de87/FLAG3546c3a92 [2022-12-14 11:09:37,209 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/bin/utaipan-gh47qXpMRh/data/9ccfa1ee7/7a14a6eb39584411b4536a456d15de87 [2022-12-14 11:09:37,211 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 11:09:37,212 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 11:09:37,213 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 11:09:37,213 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 11:09:37,216 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 11:09:37,216 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:09:37" (1/1) ... [2022-12-14 11:09:37,217 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@517f323a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:09:37, skipping insertion in model container [2022-12-14 11:09:37,217 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:09:37" (1/1) ... [2022-12-14 11:09:37,222 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 11:09:37,334 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:09:38,055 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 11:09:38,061 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-12-14 11:09:38,067 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 11:09:38,074 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-12-14 11:09:38,117 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 11:09:38,118 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 11:09:38,119 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 11:09:38,119 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-12-14 11:09:38,124 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 11:09:38,125 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 11:09:38,126 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 11:09:38,127 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-12-14 11:09:38,273 WARN L623 FunctionHandler]: Unknown extern function kasprintf [2022-12-14 11:09:38,282 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 11:09:38,283 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 11:09:38,284 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 11:09:38,284 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 11:09:38,284 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 11:09:38,286 WARN L623 FunctionHandler]: Unknown extern function usb_find_interface [2022-12-14 11:09:38,287 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:09:38,290 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-12-14 11:09:38,291 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:09:38,294 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:09:38,299 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 11:09:38,300 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 11:09:38,302 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-12-14 11:09:38,303 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout [2022-12-14 11:09:38,304 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-14 11:09:38,306 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 11:09:38,307 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 11:09:38,313 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:09:38,315 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 11:09:38,316 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 11:09:38,318 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-12-14 11:09:38,319 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout [2022-12-14 11:09:38,319 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-14 11:09:38,326 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:09:38,328 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 11:09:38,329 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 11:09:38,330 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-12-14 11:09:38,331 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-14 11:09:38,331 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-14 11:09:38,333 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 11:09:38,336 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:09:38,339 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 11:09:38,343 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 11:09:38,344 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:09:38,345 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:09:38,346 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 11:09:38,349 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 11:09:38,350 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 11:09:38,352 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:09:38,353 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 11:09:38,354 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 11:09:38,354 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-14 11:09:38,355 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-14 11:09:38,358 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:09:38,358 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:09:38,359 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:09:38,360 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:09:38,362 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:09:38,362 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:09:38,363 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:09:38,364 WARN L623 FunctionHandler]: Unknown extern function usb_register_dev [2022-12-14 11:09:38,365 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:09:38,366 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 11:09:38,366 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-12-14 11:09:38,367 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:09:38,367 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 11:09:38,369 WARN L623 FunctionHandler]: Unknown extern function usb_deregister_dev [2022-12-14 11:09:38,370 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 11:09:38,370 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 11:09:38,371 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 11:09:38,470 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 11:09:38,479 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-14 11:09:38,480 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 11:09:38,482 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 11:09:38,803 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 11:09:38,949 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 11:09:39,281 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[273031,273044] [2022-12-14 11:09:39,283 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[273176,273189] [2022-12-14 11:09:39,284 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[273322,273335] [2022-12-14 11:09:39,284 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[273487,273500] [2022-12-14 11:09:39,285 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[273645,273658] [2022-12-14 11:09:39,285 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[273803,273816] [2022-12-14 11:09:39,285 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[273961,273974] [2022-12-14 11:09:39,286 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[274121,274134] [2022-12-14 11:09:39,286 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[274280,274293] [2022-12-14 11:09:39,287 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[274419,274432] [2022-12-14 11:09:39,287 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[274561,274574] [2022-12-14 11:09:39,287 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[274710,274723] [2022-12-14 11:09:39,288 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[274849,274862] [2022-12-14 11:09:39,288 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[275004,275017] [2022-12-14 11:09:39,288 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[275164,275177] [2022-12-14 11:09:39,288 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[275315,275328] [2022-12-14 11:09:39,289 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[275466,275479] [2022-12-14 11:09:39,289 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[275618,275631] [2022-12-14 11:09:39,289 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[275767,275780] [2022-12-14 11:09:39,290 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[275915,275928] [2022-12-14 11:09:39,290 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[276072,276085] [2022-12-14 11:09:39,290 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[276221,276234] [2022-12-14 11:09:39,291 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[276377,276390] [2022-12-14 11:09:39,291 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[276530,276543] [2022-12-14 11:09:39,291 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[276676,276689] [2022-12-14 11:09:39,291 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[276819,276832] [2022-12-14 11:09:39,292 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[276971,276984] [2022-12-14 11:09:39,292 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[277117,277130] [2022-12-14 11:09:39,292 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[277262,277275] [2022-12-14 11:09:39,293 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[277416,277429] [2022-12-14 11:09:39,293 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[277567,277580] [2022-12-14 11:09:39,293 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[277722,277735] [2022-12-14 11:09:39,293 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[277874,277887] [2022-12-14 11:09:39,294 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[278029,278042] [2022-12-14 11:09:39,294 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[278193,278206] [2022-12-14 11:09:39,295 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[278349,278362] [2022-12-14 11:09:39,295 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[278513,278526] [2022-12-14 11:09:39,295 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[278655,278668] [2022-12-14 11:09:39,296 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[278813,278826] [2022-12-14 11:09:39,296 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[278980,278993] [2022-12-14 11:09:39,296 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[279139,279152] [2022-12-14 11:09:39,297 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[279298,279311] [2022-12-14 11:09:39,297 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[279447,279460] [2022-12-14 11:09:39,297 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[279594,279607] [2022-12-14 11:09:39,297 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[279733,279746] [2022-12-14 11:09:39,298 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[279896,279909] [2022-12-14 11:09:39,298 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[280062,280075] [2022-12-14 11:09:39,298 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[280226,280239] [2022-12-14 11:09:39,299 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[280391,280404] [2022-12-14 11:09:39,299 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[280556,280569] [2022-12-14 11:09:39,299 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[280722,280735] [2022-12-14 11:09:39,300 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[280887,280900] [2022-12-14 11:09:39,300 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[281054,281067] [2022-12-14 11:09:39,301 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[281214,281227] [2022-12-14 11:09:39,301 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[281376,281389] [2022-12-14 11:09:39,301 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[281535,281548] [2022-12-14 11:09:39,302 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[281681,281694] [2022-12-14 11:09:39,302 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[281824,281837] [2022-12-14 11:09:39,302 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[281968,281981] [2022-12-14 11:09:39,303 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[282111,282124] [2022-12-14 11:09:39,303 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[282255,282268] [2022-12-14 11:09:39,304 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[282396,282409] [2022-12-14 11:09:39,304 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[282534,282547] [2022-12-14 11:09:39,304 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[282692,282705] [2022-12-14 11:09:39,304 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[282851,282864] [2022-12-14 11:09:39,305 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[283007,283020] [2022-12-14 11:09:39,305 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[283156,283169] [2022-12-14 11:09:39,305 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[283308,283321] [2022-12-14 11:09:39,306 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[283459,283472] [2022-12-14 11:09:39,306 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[283608,283621] [2022-12-14 11:09:39,307 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[283760,283773] [2022-12-14 11:09:39,307 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[283908,283921] [2022-12-14 11:09:39,307 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[284061,284074] [2022-12-14 11:09:39,308 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[284212,284225] [2022-12-14 11:09:39,308 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[284362,284375] [2022-12-14 11:09:39,309 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[284509,284522] [2022-12-14 11:09:39,309 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[284660,284673] [2022-12-14 11:09:39,309 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[284811,284824] [2022-12-14 11:09:39,310 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[284959,284972] [2022-12-14 11:09:39,310 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[285125,285138] [2022-12-14 11:09:39,311 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[285294,285307] [2022-12-14 11:09:39,311 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[285461,285474] [2022-12-14 11:09:39,311 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[285629,285642] [2022-12-14 11:09:39,312 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[285779,285792] [2022-12-14 11:09:39,312 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[285926,285939] [2022-12-14 11:09:39,312 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[286087,286100] [2022-12-14 11:09:39,313 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[286257,286270] [2022-12-14 11:09:39,313 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[286419,286432] [2022-12-14 11:09:39,320 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:09:39,343 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 11:09:39,414 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 11:09:39,414 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-12-14 11:09:39,414 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 11:09:39,415 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-12-14 11:09:39,417 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 11:09:39,417 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 11:09:39,418 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 11:09:39,418 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-12-14 11:09:39,418 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 11:09:39,419 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 11:09:39,419 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 11:09:39,419 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-12-14 11:09:39,431 WARN L623 FunctionHandler]: Unknown extern function kasprintf [2022-12-14 11:09:39,434 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 11:09:39,435 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 11:09:39,435 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 11:09:39,436 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 11:09:39,436 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 11:09:39,437 WARN L623 FunctionHandler]: Unknown extern function usb_find_interface [2022-12-14 11:09:39,437 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:09:39,438 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-12-14 11:09:39,439 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:09:39,440 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:09:39,443 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 11:09:39,443 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 11:09:39,444 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-12-14 11:09:39,445 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout [2022-12-14 11:09:39,445 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-14 11:09:39,446 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 11:09:39,447 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 11:09:39,450 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:09:39,451 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 11:09:39,452 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 11:09:39,453 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-12-14 11:09:39,453 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout [2022-12-14 11:09:39,453 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-14 11:09:39,457 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:09:39,458 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 11:09:39,459 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 11:09:39,459 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-12-14 11:09:39,460 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-14 11:09:39,460 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-14 11:09:39,461 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 11:09:39,462 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:09:39,464 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 11:09:39,466 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 11:09:39,467 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:09:39,467 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:09:39,468 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 11:09:39,470 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 11:09:39,470 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 11:09:39,472 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:09:39,472 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 11:09:39,472 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 11:09:39,473 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-14 11:09:39,473 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-14 11:09:39,474 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:09:39,475 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:09:39,475 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:09:39,476 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:09:39,476 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:09:39,477 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:09:39,477 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:09:39,478 WARN L623 FunctionHandler]: Unknown extern function usb_register_dev [2022-12-14 11:09:39,478 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:09:39,479 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 11:09:39,479 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-12-14 11:09:39,479 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:09:39,480 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 11:09:39,492 WARN L623 FunctionHandler]: Unknown extern function usb_deregister_dev [2022-12-14 11:09:39,493 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 11:09:39,493 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 11:09:39,493 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 11:09:39,505 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 11:09:39,508 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-14 11:09:39,508 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 11:09:39,508 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 11:09:39,519 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 11:09:39,525 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 11:09:39,541 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[273031,273044] [2022-12-14 11:09:39,541 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[273176,273189] [2022-12-14 11:09:39,542 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[273322,273335] [2022-12-14 11:09:39,542 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[273487,273500] [2022-12-14 11:09:39,542 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[273645,273658] [2022-12-14 11:09:39,542 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[273803,273816] [2022-12-14 11:09:39,542 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[273961,273974] [2022-12-14 11:09:39,543 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[274121,274134] [2022-12-14 11:09:39,543 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[274280,274293] [2022-12-14 11:09:39,543 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[274419,274432] [2022-12-14 11:09:39,543 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[274561,274574] [2022-12-14 11:09:39,544 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[274710,274723] [2022-12-14 11:09:39,544 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[274849,274862] [2022-12-14 11:09:39,544 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[275004,275017] [2022-12-14 11:09:39,544 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[275164,275177] [2022-12-14 11:09:39,545 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[275315,275328] [2022-12-14 11:09:39,545 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[275466,275479] [2022-12-14 11:09:39,545 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[275618,275631] [2022-12-14 11:09:39,545 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[275767,275780] [2022-12-14 11:09:39,545 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[275915,275928] [2022-12-14 11:09:39,546 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[276072,276085] [2022-12-14 11:09:39,546 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[276221,276234] [2022-12-14 11:09:39,546 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[276377,276390] [2022-12-14 11:09:39,546 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[276530,276543] [2022-12-14 11:09:39,547 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[276676,276689] [2022-12-14 11:09:39,547 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[276819,276832] [2022-12-14 11:09:39,547 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[276971,276984] [2022-12-14 11:09:39,547 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[277117,277130] [2022-12-14 11:09:39,547 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[277262,277275] [2022-12-14 11:09:39,548 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[277416,277429] [2022-12-14 11:09:39,548 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[277567,277580] [2022-12-14 11:09:39,548 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[277722,277735] [2022-12-14 11:09:39,548 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[277874,277887] [2022-12-14 11:09:39,549 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[278029,278042] [2022-12-14 11:09:39,549 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[278193,278206] [2022-12-14 11:09:39,549 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[278349,278362] [2022-12-14 11:09:39,549 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[278513,278526] [2022-12-14 11:09:39,549 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[278655,278668] [2022-12-14 11:09:39,550 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[278813,278826] [2022-12-14 11:09:39,550 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[278980,278993] [2022-12-14 11:09:39,550 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[279139,279152] [2022-12-14 11:09:39,550 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[279298,279311] [2022-12-14 11:09:39,551 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[279447,279460] [2022-12-14 11:09:39,551 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[279594,279607] [2022-12-14 11:09:39,551 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[279733,279746] [2022-12-14 11:09:39,551 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[279896,279909] [2022-12-14 11:09:39,551 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[280062,280075] [2022-12-14 11:09:39,552 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[280226,280239] [2022-12-14 11:09:39,552 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[280391,280404] [2022-12-14 11:09:39,552 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[280556,280569] [2022-12-14 11:09:39,552 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[280722,280735] [2022-12-14 11:09:39,553 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[280887,280900] [2022-12-14 11:09:39,553 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[281054,281067] [2022-12-14 11:09:39,553 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[281214,281227] [2022-12-14 11:09:39,553 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[281376,281389] [2022-12-14 11:09:39,553 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[281535,281548] [2022-12-14 11:09:39,554 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[281681,281694] [2022-12-14 11:09:39,554 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[281824,281837] [2022-12-14 11:09:39,554 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[281968,281981] [2022-12-14 11:09:39,554 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[282111,282124] [2022-12-14 11:09:39,554 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[282255,282268] [2022-12-14 11:09:39,555 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[282396,282409] [2022-12-14 11:09:39,555 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[282534,282547] [2022-12-14 11:09:39,555 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[282692,282705] [2022-12-14 11:09:39,555 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[282851,282864] [2022-12-14 11:09:39,556 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[283007,283020] [2022-12-14 11:09:39,556 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[283156,283169] [2022-12-14 11:09:39,556 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[283308,283321] [2022-12-14 11:09:39,556 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[283459,283472] [2022-12-14 11:09:39,556 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[283608,283621] [2022-12-14 11:09:39,557 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[283760,283773] [2022-12-14 11:09:39,557 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[283908,283921] [2022-12-14 11:09:39,557 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[284061,284074] [2022-12-14 11:09:39,557 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[284212,284225] [2022-12-14 11:09:39,558 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[284362,284375] [2022-12-14 11:09:39,558 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[284509,284522] [2022-12-14 11:09:39,558 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[284660,284673] [2022-12-14 11:09:39,558 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[284811,284824] [2022-12-14 11:09:39,558 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[284959,284972] [2022-12-14 11:09:39,559 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[285125,285138] [2022-12-14 11:09:39,559 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[285294,285307] [2022-12-14 11:09:39,559 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[285461,285474] [2022-12-14 11:09:39,559 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[285629,285642] [2022-12-14 11:09:39,559 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[285779,285792] [2022-12-14 11:09:39,560 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[285926,285939] [2022-12-14 11:09:39,560 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[286087,286100] [2022-12-14 11:09:39,560 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[286257,286270] [2022-12-14 11:09:39,560 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i[286419,286432] [2022-12-14 11:09:39,562 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:09:39,649 INFO L208 MainTranslator]: Completed translation [2022-12-14 11:09:39,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:09:39 WrapperNode [2022-12-14 11:09:39,650 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 11:09:39,650 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 11:09:39,650 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 11:09:39,651 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 11:09:39,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:09:39" (1/1) ... [2022-12-14 11:09:39,697 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:09:39" (1/1) ... [2022-12-14 11:09:39,765 INFO L138 Inliner]: procedures = 526, calls = 1327, calls flagged for inlining = 223, calls inlined = 134, statements flattened = 2382 [2022-12-14 11:09:39,765 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 11:09:39,766 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 11:09:39,766 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 11:09:39,766 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 11:09:39,773 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:09:39" (1/1) ... [2022-12-14 11:09:39,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:09:39" (1/1) ... [2022-12-14 11:09:39,783 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:09:39" (1/1) ... [2022-12-14 11:09:39,783 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:09:39" (1/1) ... [2022-12-14 11:09:39,825 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:09:39" (1/1) ... [2022-12-14 11:09:39,831 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:09:39" (1/1) ... [2022-12-14 11:09:39,848 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:09:39" (1/1) ... [2022-12-14 11:09:39,858 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:09:39" (1/1) ... [2022-12-14 11:09:39,873 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 11:09:39,874 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 11:09:39,874 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 11:09:39,874 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 11:09:39,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:09:39" (1/1) ... [2022-12-14 11:09:39,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:09:39,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:09:39,897 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 11:09:39,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 11:09:39,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-12-14 11:09:39,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-12-14 11:09:39,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 11:09:39,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 11:09:39,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-12-14 11:09:39,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-12-14 11:09:39,930 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-12-14 11:09:39,930 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-12-14 11:09:39,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 11:09:39,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 11:09:39,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-12-14 11:09:39,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-12-14 11:09:39,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-12-14 11:09:39,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-12-14 11:09:39,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_read_buffer_lock_of_lego_usb_tower [2022-12-14 11:09:39,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_read_buffer_lock_of_lego_usb_tower [2022-12-14 11:09:39,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-12-14 11:09:39,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-12-14 11:09:39,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-14 11:09:39,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-14 11:09:39,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-12-14 11:09:39,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-12-14 11:09:39,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 11:09:39,932 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-12-14 11:09:39,932 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-12-14 11:09:39,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-12-14 11:09:39,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-12-14 11:09:39,932 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-12-14 11:09:39,932 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-12-14 11:09:39,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 11:09:39,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-12-14 11:09:39,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-12-14 11:09:39,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-12-14 11:09:39,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-12-14 11:09:39,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_112 [2022-12-14 11:09:39,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_112 [2022-12-14 11:09:39,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-12-14 11:09:39,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-12-14 11:09:39,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 11:09:39,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-12-14 11:09:39,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-12-14 11:09:39,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-12-14 11:09:39,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-12-14 11:09:39,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-12-14 11:09:39,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-12-14 11:09:39,933 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-12-14 11:09:39,933 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-12-14 11:09:39,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-12-14 11:09:39,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-12-14 11:09:39,934 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2022-12-14 11:09:39,934 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2022-12-14 11:09:39,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-12-14 11:09:39,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-12-14 11:09:39,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_open_disc_mutex [2022-12-14 11:09:39,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_open_disc_mutex [2022-12-14 11:09:39,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_lock_of_lego_usb_tower [2022-12-14 11:09:39,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_lock_of_lego_usb_tower [2022-12-14 11:09:39,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-12-14 11:09:39,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-12-14 11:09:39,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 11:09:39,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 11:09:39,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-12-14 11:09:39,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-12-14 11:09:39,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 11:09:39,935 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-12-14 11:09:39,935 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-12-14 11:09:39,935 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-12-14 11:09:39,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-12-14 11:09:39,935 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-12-14 11:09:39,935 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-12-14 11:09:39,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_irq_check_alloc_flags [2022-12-14 11:09:39,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_irq_check_alloc_flags [2022-12-14 11:09:39,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-12-14 11:09:39,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-12-14 11:09:39,936 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-12-14 11:09:39,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-12-14 11:09:39,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_open_disc_mutex [2022-12-14 11:09:39,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_open_disc_mutex [2022-12-14 11:09:39,936 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-12-14 11:09:39,936 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-12-14 11:09:39,936 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-12-14 11:09:39,936 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-12-14 11:09:39,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 11:09:39,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 11:09:39,936 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-12-14 11:09:39,936 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-12-14 11:09:39,937 INFO L130 BoogieDeclarations]: Found specification of procedure tower_disconnect [2022-12-14 11:09:39,937 INFO L138 BoogieDeclarations]: Found implementation of procedure tower_disconnect [2022-12-14 11:09:39,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 11:09:39,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 11:09:39,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 11:09:39,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 11:09:39,937 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-12-14 11:09:39,937 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-12-14 11:09:39,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-12-14 11:09:39,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-12-14 11:09:39,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_free_urb [2022-12-14 11:09:39,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_free_urb [2022-12-14 11:09:39,937 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2022-12-14 11:09:39,937 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2022-12-14 11:09:39,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-12-14 11:09:39,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-12-14 11:09:39,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_lock_of_lego_usb_tower [2022-12-14 11:09:39,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_lock_of_lego_usb_tower [2022-12-14 11:09:39,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 11:09:39,938 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-12-14 11:09:39,938 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-12-14 11:09:39,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-12-14 11:09:39,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-12-14 11:09:39,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 11:09:39,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 11:09:39,938 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-12-14 11:09:39,938 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-12-14 11:09:39,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-12-14 11:09:39,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-12-14 11:09:39,939 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-12-14 11:09:39,939 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-12-14 11:09:39,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-12-14 11:09:39,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-12-14 11:09:39,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_interruptible_or_killable_lock_of_lego_usb_tower [2022-12-14 11:09:39,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_interruptible_or_killable_lock_of_lego_usb_tower [2022-12-14 11:09:39,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2022-12-14 11:09:39,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2022-12-14 11:09:39,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_alloc_urb [2022-12-14 11:09:39,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_alloc_urb [2022-12-14 11:09:39,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-12-14 11:09:39,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-12-14 11:09:39,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-12-14 11:09:39,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-12-14 11:09:39,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-12-14 11:09:39,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-12-14 11:09:39,940 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-12-14 11:09:39,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-12-14 11:09:39,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-12-14 11:09:39,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-12-14 11:09:39,940 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2022-12-14 11:09:39,940 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2022-12-14 11:09:39,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_read_buffer_lock_of_lego_usb_tower [2022-12-14 11:09:39,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_read_buffer_lock_of_lego_usb_tower [2022-12-14 11:09:39,940 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-14 11:09:39,940 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-14 11:09:39,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-12-14 11:09:39,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-12-14 11:09:39,941 INFO L130 BoogieDeclarations]: Found specification of procedure tower_delete [2022-12-14 11:09:39,941 INFO L138 BoogieDeclarations]: Found implementation of procedure tower_delete [2022-12-14 11:09:39,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 11:09:39,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-12-14 11:09:39,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-12-14 11:09:39,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 11:09:39,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 11:09:39,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-12-14 11:09:39,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-12-14 11:09:39,941 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-12-14 11:09:39,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-12-14 11:09:39,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-12-14 11:09:39,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-12-14 11:09:39,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-12-14 11:09:39,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-12-14 11:09:39,942 INFO L130 BoogieDeclarations]: Found specification of procedure tower_check_for_read_packet [2022-12-14 11:09:39,942 INFO L138 BoogieDeclarations]: Found implementation of procedure tower_check_for_read_packet [2022-12-14 11:09:39,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 11:09:39,942 INFO L130 BoogieDeclarations]: Found specification of procedure tower_abort_transfers [2022-12-14 11:09:39,942 INFO L138 BoogieDeclarations]: Found implementation of procedure tower_abort_transfers [2022-12-14 11:09:39,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_111 [2022-12-14 11:09:39,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_111 [2022-12-14 11:09:40,294 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 11:09:40,298 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 11:09:40,474 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 11:09:42,963 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 11:09:43,270 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 11:09:43,270 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 11:09:43,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:09:43 BoogieIcfgContainer [2022-12-14 11:09:43,273 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 11:09:43,275 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 11:09:43,276 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 11:09:43,278 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 11:09:43,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:09:37" (1/3) ... [2022-12-14 11:09:43,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a49865e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:09:43, skipping insertion in model container [2022-12-14 11:09:43,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:09:39" (2/3) ... [2022-12-14 11:09:43,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a49865e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:09:43, skipping insertion in model container [2022-12-14 11:09:43,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:09:43" (3/3) ... [2022-12-14 11:09:43,280 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--usb--misc--legousbtower.ko.cil.i [2022-12-14 11:09:43,295 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 11:09:43,296 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2022-12-14 11:09:43,362 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 11:09:43,368 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@420451bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 11:09:43,368 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2022-12-14 11:09:43,375 INFO L276 IsEmpty]: Start isEmpty. Operand has 785 states, 439 states have (on average 1.328018223234624) internal successors, (583), 484 states have internal predecessors, (583), 240 states have call successors, (240), 76 states have call predecessors, (240), 75 states have return successors, (235), 232 states have call predecessors, (235), 235 states have call successors, (235) [2022-12-14 11:09:43,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-12-14 11:09:43,382 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:09:43,383 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] [2022-12-14 11:09:43,383 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 11:09:43,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:09:43,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1092301325, now seen corresponding path program 1 times [2022-12-14 11:09:43,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:09:43,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534391751] [2022-12-14 11:09:43,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:09:43,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:09:43,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:09:43,996 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 11:09:43,996 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:09:43,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534391751] [2022-12-14 11:09:43,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534391751] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:09:43,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:09:43,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 11:09:43,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766955105] [2022-12-14 11:09:43,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:09:44,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:09:44,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:09:44,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:09:44,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:09:44,032 INFO L87 Difference]: Start difference. First operand has 785 states, 439 states have (on average 1.328018223234624) internal successors, (583), 484 states have internal predecessors, (583), 240 states have call successors, (240), 76 states have call predecessors, (240), 75 states have return successors, (235), 232 states have call predecessors, (235), 235 states have call successors, (235) Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-14 11:09:45,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:09:45,531 INFO L93 Difference]: Finished difference Result 1533 states and 2159 transitions. [2022-12-14 11:09:45,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 11:09:45,533 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 51 [2022-12-14 11:09:45,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:09:45,548 INFO L225 Difference]: With dead ends: 1533 [2022-12-14 11:09:45,549 INFO L226 Difference]: Without dead ends: 770 [2022-12-14 11:09:45,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:09:45,558 INFO L413 NwaCegarLoop]: 898 mSDtfsCounter, 1003 mSDsluCounter, 898 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1005 SdHoareTripleChecker+Valid, 1796 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 11:09:45,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1005 Valid, 1796 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 11:09:45,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2022-12-14 11:09:45,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 770. [2022-12-14 11:09:45,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 770 states, 432 states have (on average 1.25) internal successors, (540), 472 states have internal predecessors, (540), 235 states have call successors, (235), 75 states have call predecessors, (235), 74 states have return successors, (233), 230 states have call predecessors, (233), 233 states have call successors, (233) [2022-12-14 11:09:45,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 770 states to 770 states and 1008 transitions. [2022-12-14 11:09:45,676 INFO L78 Accepts]: Start accepts. Automaton has 770 states and 1008 transitions. Word has length 51 [2022-12-14 11:09:45,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:09:45,677 INFO L495 AbstractCegarLoop]: Abstraction has 770 states and 1008 transitions. [2022-12-14 11:09:45,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-14 11:09:45,678 INFO L276 IsEmpty]: Start isEmpty. Operand 770 states and 1008 transitions. [2022-12-14 11:09:45,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-12-14 11:09:45,680 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:09:45,680 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] [2022-12-14 11:09:45,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 11:09:45,681 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 11:09:45,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:09:45,681 INFO L85 PathProgramCache]: Analyzing trace with hash 330740034, now seen corresponding path program 1 times [2022-12-14 11:09:45,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:09:45,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530427759] [2022-12-14 11:09:45,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:09:45,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:09:45,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:09:45,956 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 11:09:45,957 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:09:45,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530427759] [2022-12-14 11:09:45,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530427759] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:09:45,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:09:45,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 11:09:45,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140658163] [2022-12-14 11:09:45,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:09:45,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:09:45,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:09:45,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:09:45,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:09:45,960 INFO L87 Difference]: Start difference. First operand 770 states and 1008 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 11:09:47,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:09:47,165 INFO L93 Difference]: Finished difference Result 770 states and 1008 transitions. [2022-12-14 11:09:47,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 11:09:47,165 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 56 [2022-12-14 11:09:47,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:09:47,169 INFO L225 Difference]: With dead ends: 770 [2022-12-14 11:09:47,170 INFO L226 Difference]: Without dead ends: 768 [2022-12-14 11:09:47,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:09:47,171 INFO L413 NwaCegarLoop]: 880 mSDtfsCounter, 983 mSDsluCounter, 880 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 985 SdHoareTripleChecker+Valid, 1760 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:09:47,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [985 Valid, 1760 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 11:09:47,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2022-12-14 11:09:47,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 768. [2022-12-14 11:09:47,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 768 states, 431 states have (on average 1.248259860788863) internal successors, (538), 470 states have internal predecessors, (538), 235 states have call successors, (235), 75 states have call predecessors, (235), 74 states have return successors, (233), 230 states have call predecessors, (233), 233 states have call successors, (233) [2022-12-14 11:09:47,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 1006 transitions. [2022-12-14 11:09:47,203 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 1006 transitions. Word has length 56 [2022-12-14 11:09:47,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:09:47,203 INFO L495 AbstractCegarLoop]: Abstraction has 768 states and 1006 transitions. [2022-12-14 11:09:47,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 11:09:47,203 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 1006 transitions. [2022-12-14 11:09:47,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-12-14 11:09:47,204 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:09:47,204 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] [2022-12-14 11:09:47,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 11:09:47,205 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 11:09:47,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:09:47,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1261849308, now seen corresponding path program 1 times [2022-12-14 11:09:47,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:09:47,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109434302] [2022-12-14 11:09:47,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:09:47,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:09:47,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:09:47,477 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 11:09:47,478 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:09:47,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109434302] [2022-12-14 11:09:47,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109434302] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:09:47,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:09:47,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 11:09:47,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373781748] [2022-12-14 11:09:47,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:09:47,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:09:47,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:09:47,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:09:47,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:09:47,480 INFO L87 Difference]: Start difference. First operand 768 states and 1006 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 11:09:48,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:09:48,761 INFO L93 Difference]: Finished difference Result 768 states and 1006 transitions. [2022-12-14 11:09:48,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 11:09:48,762 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 61 [2022-12-14 11:09:48,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:09:48,765 INFO L225 Difference]: With dead ends: 768 [2022-12-14 11:09:48,765 INFO L226 Difference]: Without dead ends: 766 [2022-12-14 11:09:48,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:09:48,766 INFO L413 NwaCegarLoop]: 878 mSDtfsCounter, 980 mSDsluCounter, 878 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 982 SdHoareTripleChecker+Valid, 1756 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:09:48,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [982 Valid, 1756 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 11:09:48,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2022-12-14 11:09:48,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 766. [2022-12-14 11:09:48,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 766 states, 430 states have (on average 1.2465116279069768) internal successors, (536), 468 states have internal predecessors, (536), 235 states have call successors, (235), 75 states have call predecessors, (235), 74 states have return successors, (233), 230 states have call predecessors, (233), 233 states have call successors, (233) [2022-12-14 11:09:48,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 1004 transitions. [2022-12-14 11:09:48,796 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 1004 transitions. Word has length 61 [2022-12-14 11:09:48,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:09:48,797 INFO L495 AbstractCegarLoop]: Abstraction has 766 states and 1004 transitions. [2022-12-14 11:09:48,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 11:09:48,797 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 1004 transitions. [2022-12-14 11:09:48,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-12-14 11:09:48,798 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:09:48,798 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] [2022-12-14 11:09:48,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 11:09:48,799 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 11:09:48,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:09:48,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1972302098, now seen corresponding path program 1 times [2022-12-14 11:09:48,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:09:48,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653053321] [2022-12-14 11:09:48,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:09:48,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:09:48,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:09:49,059 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 11:09:49,059 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:09:49,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653053321] [2022-12-14 11:09:49,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653053321] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:09:49,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:09:49,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 11:09:49,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351387146] [2022-12-14 11:09:49,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:09:49,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:09:49,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:09:49,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:09:49,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:09:49,061 INFO L87 Difference]: Start difference. First operand 766 states and 1004 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 11:09:50,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:09:50,334 INFO L93 Difference]: Finished difference Result 766 states and 1004 transitions. [2022-12-14 11:09:50,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 11:09:50,334 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 66 [2022-12-14 11:09:50,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:09:50,340 INFO L225 Difference]: With dead ends: 766 [2022-12-14 11:09:50,340 INFO L226 Difference]: Without dead ends: 764 [2022-12-14 11:09:50,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:09:50,341 INFO L413 NwaCegarLoop]: 876 mSDtfsCounter, 977 mSDsluCounter, 876 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 979 SdHoareTripleChecker+Valid, 1752 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:09:50,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [979 Valid, 1752 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 11:09:50,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2022-12-14 11:09:50,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 764. [2022-12-14 11:09:50,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 764 states, 429 states have (on average 1.2447552447552448) internal successors, (534), 466 states have internal predecessors, (534), 235 states have call successors, (235), 75 states have call predecessors, (235), 74 states have return successors, (233), 230 states have call predecessors, (233), 233 states have call successors, (233) [2022-12-14 11:09:50,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 764 states to 764 states and 1002 transitions. [2022-12-14 11:09:50,371 INFO L78 Accepts]: Start accepts. Automaton has 764 states and 1002 transitions. Word has length 66 [2022-12-14 11:09:50,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:09:50,372 INFO L495 AbstractCegarLoop]: Abstraction has 764 states and 1002 transitions. [2022-12-14 11:09:50,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 11:09:50,372 INFO L276 IsEmpty]: Start isEmpty. Operand 764 states and 1002 transitions. [2022-12-14 11:09:50,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-12-14 11:09:50,373 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:09:50,373 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] [2022-12-14 11:09:50,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 11:09:50,373 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 11:09:50,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:09:50,374 INFO L85 PathProgramCache]: Analyzing trace with hash 568798611, now seen corresponding path program 1 times [2022-12-14 11:09:50,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:09:50,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546684758] [2022-12-14 11:09:50,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:09:50,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:09:50,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:09:50,559 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 11:09:50,560 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:09:50,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546684758] [2022-12-14 11:09:50,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546684758] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:09:50,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:09:50,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 11:09:50,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460756462] [2022-12-14 11:09:50,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:09:50,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:09:50,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:09:50,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:09:50,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:09:50,562 INFO L87 Difference]: Start difference. First operand 764 states and 1002 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 11:09:51,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:09:51,956 INFO L93 Difference]: Finished difference Result 764 states and 1002 transitions. [2022-12-14 11:09:51,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 11:09:51,956 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 71 [2022-12-14 11:09:51,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:09:51,960 INFO L225 Difference]: With dead ends: 764 [2022-12-14 11:09:51,960 INFO L226 Difference]: Without dead ends: 762 [2022-12-14 11:09:51,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:09:51,961 INFO L413 NwaCegarLoop]: 874 mSDtfsCounter, 974 mSDsluCounter, 874 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 976 SdHoareTripleChecker+Valid, 1748 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 11:09:51,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [976 Valid, 1748 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 11:09:51,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2022-12-14 11:09:52,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 762. [2022-12-14 11:09:52,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 762 states, 428 states have (on average 1.2429906542056075) internal successors, (532), 464 states have internal predecessors, (532), 235 states have call successors, (235), 75 states have call predecessors, (235), 74 states have return successors, (233), 230 states have call predecessors, (233), 233 states have call successors, (233) [2022-12-14 11:09:52,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 1000 transitions. [2022-12-14 11:09:52,015 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 1000 transitions. Word has length 71 [2022-12-14 11:09:52,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:09:52,016 INFO L495 AbstractCegarLoop]: Abstraction has 762 states and 1000 transitions. [2022-12-14 11:09:52,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 11:09:52,016 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 1000 transitions. [2022-12-14 11:09:52,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-12-14 11:09:52,017 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:09:52,017 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] [2022-12-14 11:09:52,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 11:09:52,018 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 11:09:52,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:09:52,018 INFO L85 PathProgramCache]: Analyzing trace with hash -242197868, now seen corresponding path program 1 times [2022-12-14 11:09:52,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:09:52,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373796635] [2022-12-14 11:09:52,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:09:52,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:09:52,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:09:52,201 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 11:09:52,201 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:09:52,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373796635] [2022-12-14 11:09:52,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373796635] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:09:52,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:09:52,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 11:09:52,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324698296] [2022-12-14 11:09:52,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:09:52,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:09:52,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:09:52,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:09:52,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:09:52,203 INFO L87 Difference]: Start difference. First operand 762 states and 1000 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 11:09:53,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:09:53,457 INFO L93 Difference]: Finished difference Result 762 states and 1000 transitions. [2022-12-14 11:09:53,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 11:09:53,457 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 76 [2022-12-14 11:09:53,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:09:53,461 INFO L225 Difference]: With dead ends: 762 [2022-12-14 11:09:53,462 INFO L226 Difference]: Without dead ends: 760 [2022-12-14 11:09:53,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:09:53,463 INFO L413 NwaCegarLoop]: 872 mSDtfsCounter, 971 mSDsluCounter, 872 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 973 SdHoareTripleChecker+Valid, 1744 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:09:53,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [973 Valid, 1744 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 11:09:53,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2022-12-14 11:09:53,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 760. [2022-12-14 11:09:53,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 760 states, 427 states have (on average 1.2412177985948478) internal successors, (530), 462 states have internal predecessors, (530), 235 states have call successors, (235), 75 states have call predecessors, (235), 74 states have return successors, (233), 230 states have call predecessors, (233), 233 states have call successors, (233) [2022-12-14 11:09:53,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 760 states to 760 states and 998 transitions. [2022-12-14 11:09:53,528 INFO L78 Accepts]: Start accepts. Automaton has 760 states and 998 transitions. Word has length 76 [2022-12-14 11:09:53,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:09:53,529 INFO L495 AbstractCegarLoop]: Abstraction has 760 states and 998 transitions. [2022-12-14 11:09:53,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 11:09:53,529 INFO L276 IsEmpty]: Start isEmpty. Operand 760 states and 998 transitions. [2022-12-14 11:09:53,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-12-14 11:09:53,530 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:09:53,530 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] [2022-12-14 11:09:53,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 11:09:53,530 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 11:09:53,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:09:53,531 INFO L85 PathProgramCache]: Analyzing trace with hash -872800665, now seen corresponding path program 1 times [2022-12-14 11:09:53,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:09:53,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084806808] [2022-12-14 11:09:53,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:09:53,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:09:53,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:09:53,765 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 11:09:53,765 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:09:53,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084806808] [2022-12-14 11:09:53,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084806808] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:09:53,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:09:53,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 11:09:53,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30522642] [2022-12-14 11:09:53,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:09:53,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:09:53,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:09:53,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:09:53,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:09:53,767 INFO L87 Difference]: Start difference. First operand 760 states and 998 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 11:09:55,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:09:55,098 INFO L93 Difference]: Finished difference Result 760 states and 998 transitions. [2022-12-14 11:09:55,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 11:09:55,099 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 81 [2022-12-14 11:09:55,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:09:55,101 INFO L225 Difference]: With dead ends: 760 [2022-12-14 11:09:55,101 INFO L226 Difference]: Without dead ends: 758 [2022-12-14 11:09:55,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:09:55,102 INFO L413 NwaCegarLoop]: 870 mSDtfsCounter, 968 mSDsluCounter, 870 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 970 SdHoareTripleChecker+Valid, 1740 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 11:09:55,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [970 Valid, 1740 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 11:09:55,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2022-12-14 11:09:55,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 758. [2022-12-14 11:09:55,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 758 states, 426 states have (on average 1.2394366197183098) internal successors, (528), 460 states have internal predecessors, (528), 235 states have call successors, (235), 75 states have call predecessors, (235), 74 states have return successors, (233), 230 states have call predecessors, (233), 233 states have call successors, (233) [2022-12-14 11:09:55,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 758 states to 758 states and 996 transitions. [2022-12-14 11:09:55,137 INFO L78 Accepts]: Start accepts. Automaton has 758 states and 996 transitions. Word has length 81 [2022-12-14 11:09:55,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:09:55,137 INFO L495 AbstractCegarLoop]: Abstraction has 758 states and 996 transitions. [2022-12-14 11:09:55,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 11:09:55,137 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states and 996 transitions. [2022-12-14 11:09:55,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-12-14 11:09:55,138 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:09:55,138 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] [2022-12-14 11:09:55,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 11:09:55,138 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 11:09:55,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:09:55,139 INFO L85 PathProgramCache]: Analyzing trace with hash -926654887, now seen corresponding path program 1 times [2022-12-14 11:09:55,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:09:55,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105925575] [2022-12-14 11:09:55,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:09:55,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:09:55,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:09:55,303 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 11:09:55,303 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:09:55,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105925575] [2022-12-14 11:09:55,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105925575] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:09:55,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:09:55,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 11:09:55,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398613079] [2022-12-14 11:09:55,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:09:55,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:09:55,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:09:55,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:09:55,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:09:55,305 INFO L87 Difference]: Start difference. First operand 758 states and 996 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 11:09:56,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:09:56,609 INFO L93 Difference]: Finished difference Result 758 states and 996 transitions. [2022-12-14 11:09:56,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 11:09:56,610 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 86 [2022-12-14 11:09:56,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:09:56,613 INFO L225 Difference]: With dead ends: 758 [2022-12-14 11:09:56,613 INFO L226 Difference]: Without dead ends: 756 [2022-12-14 11:09:56,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:09:56,614 INFO L413 NwaCegarLoop]: 868 mSDtfsCounter, 969 mSDsluCounter, 864 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 971 SdHoareTripleChecker+Valid, 1732 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:09:56,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [971 Valid, 1732 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 11:09:56,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2022-12-14 11:09:56,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 756. [2022-12-14 11:09:56,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 756 states, 425 states have (on average 1.2376470588235293) internal successors, (526), 458 states have internal predecessors, (526), 235 states have call successors, (235), 75 states have call predecessors, (235), 74 states have return successors, (233), 230 states have call predecessors, (233), 233 states have call successors, (233) [2022-12-14 11:09:56,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 994 transitions. [2022-12-14 11:09:56,655 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 994 transitions. Word has length 86 [2022-12-14 11:09:56,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:09:56,655 INFO L495 AbstractCegarLoop]: Abstraction has 756 states and 994 transitions. [2022-12-14 11:09:56,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 11:09:56,656 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 994 transitions. [2022-12-14 11:09:56,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-12-14 11:09:56,656 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:09:56,657 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] [2022-12-14 11:09:56,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 11:09:56,657 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 11:09:56,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:09:56,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1456981316, now seen corresponding path program 1 times [2022-12-14 11:09:56,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:09:56,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871316890] [2022-12-14 11:09:56,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:09:56,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:09:56,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:09:56,818 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 11:09:56,818 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:09:56,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871316890] [2022-12-14 11:09:56,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871316890] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:09:56,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:09:56,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 11:09:56,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627179848] [2022-12-14 11:09:56,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:09:56,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:09:56,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:09:56,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:09:56,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:09:56,820 INFO L87 Difference]: Start difference. First operand 756 states and 994 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 11:09:58,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:09:58,386 INFO L93 Difference]: Finished difference Result 756 states and 994 transitions. [2022-12-14 11:09:58,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 11:09:58,387 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 88 [2022-12-14 11:09:58,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:09:58,392 INFO L225 Difference]: With dead ends: 756 [2022-12-14 11:09:58,392 INFO L226 Difference]: Without dead ends: 754 [2022-12-14 11:09:58,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:09:58,392 INFO L413 NwaCegarLoop]: 866 mSDtfsCounter, 961 mSDsluCounter, 866 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 963 SdHoareTripleChecker+Valid, 1732 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-14 11:09:58,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [963 Valid, 1732 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-14 11:09:58,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2022-12-14 11:09:58,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 754. [2022-12-14 11:09:58,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 754 states, 424 states have (on average 1.2358490566037736) internal successors, (524), 456 states have internal predecessors, (524), 235 states have call successors, (235), 75 states have call predecessors, (235), 74 states have return successors, (233), 230 states have call predecessors, (233), 233 states have call successors, (233) [2022-12-14 11:09:58,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 992 transitions. [2022-12-14 11:09:58,430 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 992 transitions. Word has length 88 [2022-12-14 11:09:58,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:09:58,430 INFO L495 AbstractCegarLoop]: Abstraction has 754 states and 992 transitions. [2022-12-14 11:09:58,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 11:09:58,430 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 992 transitions. [2022-12-14 11:09:58,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-12-14 11:09:58,431 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:09:58,431 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] [2022-12-14 11:09:58,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 11:09:58,431 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 11:09:58,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:09:58,432 INFO L85 PathProgramCache]: Analyzing trace with hash -612417383, now seen corresponding path program 1 times [2022-12-14 11:09:58,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:09:58,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370512825] [2022-12-14 11:09:58,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:09:58,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:09:58,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:09:58,590 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 11:09:58,590 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:09:58,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370512825] [2022-12-14 11:09:58,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370512825] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:09:58,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:09:58,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 11:09:58,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281664221] [2022-12-14 11:09:58,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:09:58,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:09:58,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:09:58,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:09:58,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:09:58,592 INFO L87 Difference]: Start difference. First operand 754 states and 992 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 11:09:59,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:09:59,951 INFO L93 Difference]: Finished difference Result 754 states and 992 transitions. [2022-12-14 11:09:59,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 11:09:59,952 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 93 [2022-12-14 11:09:59,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:09:59,957 INFO L225 Difference]: With dead ends: 754 [2022-12-14 11:09:59,957 INFO L226 Difference]: Without dead ends: 752 [2022-12-14 11:09:59,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:09:59,958 INFO L413 NwaCegarLoop]: 864 mSDtfsCounter, 960 mSDsluCounter, 864 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 962 SdHoareTripleChecker+Valid, 1728 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 11:09:59,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [962 Valid, 1728 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 11:09:59,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2022-12-14 11:10:00,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 752. [2022-12-14 11:10:00,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 752 states, 423 states have (on average 1.2340425531914894) internal successors, (522), 454 states have internal predecessors, (522), 235 states have call successors, (235), 75 states have call predecessors, (235), 74 states have return successors, (233), 230 states have call predecessors, (233), 233 states have call successors, (233) [2022-12-14 11:10:00,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 990 transitions. [2022-12-14 11:10:00,044 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 990 transitions. Word has length 93 [2022-12-14 11:10:00,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:10:00,044 INFO L495 AbstractCegarLoop]: Abstraction has 752 states and 990 transitions. [2022-12-14 11:10:00,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 11:10:00,045 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 990 transitions. [2022-12-14 11:10:00,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-12-14 11:10:00,046 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:10:00,047 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] [2022-12-14 11:10:00,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 11:10:00,047 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 11:10:00,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:10:00,048 INFO L85 PathProgramCache]: Analyzing trace with hash -713379373, now seen corresponding path program 1 times [2022-12-14 11:10:00,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:10:00,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901473910] [2022-12-14 11:10:00,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:10:00,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:10:00,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:10:00,781 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-12-14 11:10:00,781 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:10:00,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901473910] [2022-12-14 11:10:00,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901473910] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:10:00,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:10:00,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 11:10:00,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562837478] [2022-12-14 11:10:00,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:10:00,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 11:10:00,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:10:00,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 11:10:00,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 11:10:00,783 INFO L87 Difference]: Start difference. First operand 752 states and 990 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 11:10:04,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:10:04,084 INFO L93 Difference]: Finished difference Result 752 states and 990 transitions. [2022-12-14 11:10:04,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 11:10:04,085 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (18), 2 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 127 [2022-12-14 11:10:04,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:10:04,087 INFO L225 Difference]: With dead ends: 752 [2022-12-14 11:10:04,087 INFO L226 Difference]: Without dead ends: 750 [2022-12-14 11:10:04,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-12-14 11:10:04,088 INFO L413 NwaCegarLoop]: 863 mSDtfsCounter, 954 mSDsluCounter, 2120 mSDsCounter, 0 mSdLazyCounter, 964 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 958 SdHoareTripleChecker+Valid, 2983 SdHoareTripleChecker+Invalid, 964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:10:04,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [958 Valid, 2983 Invalid, 964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 964 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-12-14 11:10:04,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2022-12-14 11:10:04,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 750. [2022-12-14 11:10:04,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 422 states have (on average 1.2322274881516588) internal successors, (520), 452 states have internal predecessors, (520), 235 states have call successors, (235), 75 states have call predecessors, (235), 74 states have return successors, (233), 230 states have call predecessors, (233), 233 states have call successors, (233) [2022-12-14 11:10:04,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 988 transitions. [2022-12-14 11:10:04,130 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 988 transitions. Word has length 127 [2022-12-14 11:10:04,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:10:04,130 INFO L495 AbstractCegarLoop]: Abstraction has 750 states and 988 transitions. [2022-12-14 11:10:04,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 11:10:04,131 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 988 transitions. [2022-12-14 11:10:04,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-14 11:10:04,131 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:10:04,132 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] [2022-12-14 11:10:04,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 11:10:04,132 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 11:10:04,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:10:04,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1823940509, now seen corresponding path program 1 times [2022-12-14 11:10:04,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:10:04,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885228976] [2022-12-14 11:10:04,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:10:04,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:10:04,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:10:04,312 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 11:10:04,313 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:10:04,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885228976] [2022-12-14 11:10:04,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885228976] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:10:04,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:10:04,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 11:10:04,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76558410] [2022-12-14 11:10:04,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:10:04,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:10:04,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:10:04,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:10:04,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:10:04,315 INFO L87 Difference]: Start difference. First operand 750 states and 988 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 11:10:05,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:10:05,967 INFO L93 Difference]: Finished difference Result 750 states and 988 transitions. [2022-12-14 11:10:05,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 11:10:05,968 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 98 [2022-12-14 11:10:05,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:10:05,972 INFO L225 Difference]: With dead ends: 750 [2022-12-14 11:10:05,972 INFO L226 Difference]: Without dead ends: 748 [2022-12-14 11:10:05,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:10:05,973 INFO L413 NwaCegarLoop]: 860 mSDtfsCounter, 955 mSDsluCounter, 860 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 957 SdHoareTripleChecker+Valid, 1720 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-14 11:10:05,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [957 Valid, 1720 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-14 11:10:05,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2022-12-14 11:10:06,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 748. [2022-12-14 11:10:06,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 748 states, 421 states have (on average 1.2304038004750595) internal successors, (518), 450 states have internal predecessors, (518), 235 states have call successors, (235), 75 states have call predecessors, (235), 74 states have return successors, (233), 230 states have call predecessors, (233), 233 states have call successors, (233) [2022-12-14 11:10:06,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 986 transitions. [2022-12-14 11:10:06,016 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 986 transitions. Word has length 98 [2022-12-14 11:10:06,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:10:06,017 INFO L495 AbstractCegarLoop]: Abstraction has 748 states and 986 transitions. [2022-12-14 11:10:06,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 11:10:06,017 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 986 transitions. [2022-12-14 11:10:06,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-12-14 11:10:06,018 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:10:06,018 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] [2022-12-14 11:10:06,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 11:10:06,018 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 11:10:06,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:10:06,019 INFO L85 PathProgramCache]: Analyzing trace with hash 941338306, now seen corresponding path program 1 times [2022-12-14 11:10:06,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:10:06,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793844745] [2022-12-14 11:10:06,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:10:06,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:10:06,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:10:06,203 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 11:10:06,204 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:10:06,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793844745] [2022-12-14 11:10:06,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793844745] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:10:06,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:10:06,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 11:10:06,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213961015] [2022-12-14 11:10:06,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:10:06,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:10:06,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:10:06,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:10:06,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:10:06,206 INFO L87 Difference]: Start difference. First operand 748 states and 986 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-14 11:10:07,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:10:07,471 INFO L93 Difference]: Finished difference Result 748 states and 986 transitions. [2022-12-14 11:10:07,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 11:10:07,471 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 103 [2022-12-14 11:10:07,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:10:07,476 INFO L225 Difference]: With dead ends: 748 [2022-12-14 11:10:07,476 INFO L226 Difference]: Without dead ends: 746 [2022-12-14 11:10:07,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:10:07,477 INFO L413 NwaCegarLoop]: 858 mSDtfsCounter, 952 mSDsluCounter, 858 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 954 SdHoareTripleChecker+Valid, 1716 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:10:07,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [954 Valid, 1716 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 11:10:07,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2022-12-14 11:10:07,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 746. [2022-12-14 11:10:07,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 746 states, 420 states have (on average 1.2285714285714286) internal successors, (516), 448 states have internal predecessors, (516), 235 states have call successors, (235), 75 states have call predecessors, (235), 74 states have return successors, (233), 230 states have call predecessors, (233), 233 states have call successors, (233) [2022-12-14 11:10:07,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 984 transitions. [2022-12-14 11:10:07,522 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 984 transitions. Word has length 103 [2022-12-14 11:10:07,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:10:07,523 INFO L495 AbstractCegarLoop]: Abstraction has 746 states and 984 transitions. [2022-12-14 11:10:07,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-14 11:10:07,523 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 984 transitions. [2022-12-14 11:10:07,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-12-14 11:10:07,524 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:10:07,524 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] [2022-12-14 11:10:07,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 11:10:07,524 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 11:10:07,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:10:07,525 INFO L85 PathProgramCache]: Analyzing trace with hash 192482548, now seen corresponding path program 1 times [2022-12-14 11:10:07,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:10:07,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939408399] [2022-12-14 11:10:07,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:10:07,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:10:07,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:10:07,665 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-12-14 11:10:07,665 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:10:07,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939408399] [2022-12-14 11:10:07,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939408399] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:10:07,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:10:07,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:10:07,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621797526] [2022-12-14 11:10:07,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:10:07,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:10:07,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:10:07,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:10:07,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:10:07,667 INFO L87 Difference]: Start difference. First operand 746 states and 984 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 11:10:08,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:10:08,360 INFO L93 Difference]: Finished difference Result 1457 states and 1925 transitions. [2022-12-14 11:10:08,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:10:08,361 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (19), 2 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 133 [2022-12-14 11:10:08,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:10:08,363 INFO L225 Difference]: With dead ends: 1457 [2022-12-14 11:10:08,363 INFO L226 Difference]: Without dead ends: 742 [2022-12-14 11:10:08,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:10:08,365 INFO L413 NwaCegarLoop]: 854 mSDtfsCounter, 946 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 946 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 11:10:08,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [946 Valid, 854 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 11:10:08,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2022-12-14 11:10:08,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 742. [2022-12-14 11:10:08,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 417 states have (on average 1.225419664268585) internal successors, (511), 444 states have internal predecessors, (511), 235 states have call successors, (235), 75 states have call predecessors, (235), 74 states have return successors, (233), 230 states have call predecessors, (233), 233 states have call successors, (233) [2022-12-14 11:10:08,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 979 transitions. [2022-12-14 11:10:08,412 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 979 transitions. Word has length 133 [2022-12-14 11:10:08,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:10:08,412 INFO L495 AbstractCegarLoop]: Abstraction has 742 states and 979 transitions. [2022-12-14 11:10:08,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 11:10:08,413 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 979 transitions. [2022-12-14 11:10:08,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-12-14 11:10:08,414 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:10:08,414 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] [2022-12-14 11:10:08,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 11:10:08,414 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 11:10:08,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:10:08,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1363558208, now seen corresponding path program 1 times [2022-12-14 11:10:08,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:10:08,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045389367] [2022-12-14 11:10:08,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:10:08,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:10:08,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:10:08,775 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2022-12-14 11:10:08,775 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:10:08,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045389367] [2022-12-14 11:10:08,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045389367] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:10:08,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:10:08,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:10:08,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310927945] [2022-12-14 11:10:08,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:10:08,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 11:10:08,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:10:08,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 11:10:08,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:10:08,778 INFO L87 Difference]: Start difference. First operand 742 states and 979 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) [2022-12-14 11:10:11,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:10:11,291 INFO L93 Difference]: Finished difference Result 1475 states and 1974 transitions. [2022-12-14 11:10:11,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 11:10:11,292 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (23), 2 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 128 [2022-12-14 11:10:11,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:10:11,295 INFO L225 Difference]: With dead ends: 1475 [2022-12-14 11:10:11,295 INFO L226 Difference]: Without dead ends: 953 [2022-12-14 11:10:11,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:10:11,296 INFO L413 NwaCegarLoop]: 969 mSDtfsCounter, 158 mSDsluCounter, 2808 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 3777 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-12-14 11:10:11,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 3777 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-12-14 11:10:11,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 953 states. [2022-12-14 11:10:11,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 953 to 746. [2022-12-14 11:10:11,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 746 states, 420 states have (on average 1.223809523809524) internal successors, (514), 447 states have internal predecessors, (514), 235 states have call successors, (235), 75 states have call predecessors, (235), 75 states have return successors, (236), 231 states have call predecessors, (236), 233 states have call successors, (236) [2022-12-14 11:10:11,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 985 transitions. [2022-12-14 11:10:11,392 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 985 transitions. Word has length 128 [2022-12-14 11:10:11,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:10:11,393 INFO L495 AbstractCegarLoop]: Abstraction has 746 states and 985 transitions. [2022-12-14 11:10:11,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) [2022-12-14 11:10:11,393 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 985 transitions. [2022-12-14 11:10:11,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-12-14 11:10:11,395 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:10:11,395 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] [2022-12-14 11:10:11,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 11:10:11,396 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 11:10:11,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:10:11,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1171054178, now seen corresponding path program 1 times [2022-12-14 11:10:11,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:10:11,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197098300] [2022-12-14 11:10:11,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:10:11,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:10:11,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:10:11,547 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 11:10:11,547 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:10:11,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197098300] [2022-12-14 11:10:11,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197098300] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:10:11,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:10:11,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 11:10:11,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646464523] [2022-12-14 11:10:11,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:10:11,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:10:11,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:10:11,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:10:11,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:10:11,549 INFO L87 Difference]: Start difference. First operand 746 states and 985 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 11:10:13,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:10:13,146 INFO L93 Difference]: Finished difference Result 746 states and 985 transitions. [2022-12-14 11:10:13,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 11:10:13,147 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 108 [2022-12-14 11:10:13,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:10:13,149 INFO L225 Difference]: With dead ends: 746 [2022-12-14 11:10:13,149 INFO L226 Difference]: Without dead ends: 744 [2022-12-14 11:10:13,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:10:13,150 INFO L413 NwaCegarLoop]: 851 mSDtfsCounter, 944 mSDsluCounter, 851 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 946 SdHoareTripleChecker+Valid, 1702 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-14 11:10:13,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [946 Valid, 1702 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-14 11:10:13,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2022-12-14 11:10:13,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2022-12-14 11:10:13,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 744 states, 419 states have (on average 1.2219570405727924) internal successors, (512), 445 states have internal predecessors, (512), 235 states have call successors, (235), 75 states have call predecessors, (235), 75 states have return successors, (236), 231 states have call predecessors, (236), 233 states have call successors, (236) [2022-12-14 11:10:13,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 983 transitions. [2022-12-14 11:10:13,214 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 983 transitions. Word has length 108 [2022-12-14 11:10:13,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:10:13,215 INFO L495 AbstractCegarLoop]: Abstraction has 744 states and 983 transitions. [2022-12-14 11:10:13,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 11:10:13,215 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 983 transitions. [2022-12-14 11:10:13,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-12-14 11:10:13,216 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:10:13,216 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] [2022-12-14 11:10:13,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 11:10:13,216 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 11:10:13,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:10:13,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1051336823, now seen corresponding path program 1 times [2022-12-14 11:10:13,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:10:13,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309641208] [2022-12-14 11:10:13,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:10:13,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:10:13,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:10:13,357 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 11:10:13,357 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:10:13,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309641208] [2022-12-14 11:10:13,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309641208] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:10:13,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:10:13,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 11:10:13,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598032435] [2022-12-14 11:10:13,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:10:13,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:10:13,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:10:13,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:10:13,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:10:13,359 INFO L87 Difference]: Start difference. First operand 744 states and 983 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-12-14 11:10:14,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:10:14,796 INFO L93 Difference]: Finished difference Result 744 states and 983 transitions. [2022-12-14 11:10:14,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 11:10:14,796 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 113 [2022-12-14 11:10:14,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:10:14,799 INFO L225 Difference]: With dead ends: 744 [2022-12-14 11:10:14,799 INFO L226 Difference]: Without dead ends: 742 [2022-12-14 11:10:14,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:10:14,799 INFO L413 NwaCegarLoop]: 849 mSDtfsCounter, 941 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 943 SdHoareTripleChecker+Valid, 1698 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 11:10:14,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [943 Valid, 1698 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 11:10:14,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2022-12-14 11:10:14,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 742. [2022-12-14 11:10:14,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 418 states have (on average 1.2200956937799043) internal successors, (510), 443 states have internal predecessors, (510), 235 states have call successors, (235), 75 states have call predecessors, (235), 75 states have return successors, (236), 231 states have call predecessors, (236), 233 states have call successors, (236) [2022-12-14 11:10:14,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 981 transitions. [2022-12-14 11:10:14,865 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 981 transitions. Word has length 113 [2022-12-14 11:10:14,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:10:14,865 INFO L495 AbstractCegarLoop]: Abstraction has 742 states and 981 transitions. [2022-12-14 11:10:14,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-12-14 11:10:14,865 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 981 transitions. [2022-12-14 11:10:14,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-12-14 11:10:14,866 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:10:14,866 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] [2022-12-14 11:10:14,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 11:10:14,867 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 11:10:14,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:10:14,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1088354019, now seen corresponding path program 1 times [2022-12-14 11:10:14,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:10:14,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414316821] [2022-12-14 11:10:14,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:10:14,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:10:14,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:10:15,158 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2022-12-14 11:10:15,159 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:10:15,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414316821] [2022-12-14 11:10:15,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414316821] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:10:15,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:10:15,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:10:15,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754407829] [2022-12-14 11:10:15,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:10:15,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 11:10:15,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:10:15,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 11:10:15,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:10:15,161 INFO L87 Difference]: Start difference. First operand 742 states and 981 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-12-14 11:10:16,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:10:16,987 INFO L93 Difference]: Finished difference Result 827 states and 1064 transitions. [2022-12-14 11:10:16,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 11:10:16,987 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (26), 3 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 141 [2022-12-14 11:10:16,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:10:16,989 INFO L225 Difference]: With dead ends: 827 [2022-12-14 11:10:16,990 INFO L226 Difference]: Without dead ends: 825 [2022-12-14 11:10:16,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 11:10:16,990 INFO L413 NwaCegarLoop]: 870 mSDtfsCounter, 856 mSDsluCounter, 1878 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 858 SdHoareTripleChecker+Valid, 2748 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-14 11:10:16,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [858 Valid, 2748 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-14 11:10:16,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2022-12-14 11:10:17,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 819. [2022-12-14 11:10:17,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 819 states, 464 states have (on average 1.2155172413793103) internal successors, (564), 489 states have internal predecessors, (564), 247 states have call successors, (247), 94 states have call predecessors, (247), 94 states have return successors, (248), 243 states have call predecessors, (248), 245 states have call successors, (248) [2022-12-14 11:10:17,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 819 states and 1059 transitions. [2022-12-14 11:10:17,102 INFO L78 Accepts]: Start accepts. Automaton has 819 states and 1059 transitions. Word has length 141 [2022-12-14 11:10:17,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:10:17,102 INFO L495 AbstractCegarLoop]: Abstraction has 819 states and 1059 transitions. [2022-12-14 11:10:17,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-12-14 11:10:17,103 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 1059 transitions. [2022-12-14 11:10:17,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-12-14 11:10:17,104 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:10:17,105 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] [2022-12-14 11:10:17,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 11:10:17,105 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 11:10:17,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:10:17,105 INFO L85 PathProgramCache]: Analyzing trace with hash -693302612, now seen corresponding path program 1 times [2022-12-14 11:10:17,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:10:17,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970880637] [2022-12-14 11:10:17,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:10:17,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:10:17,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:10:17,287 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 11:10:17,287 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:10:17,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970880637] [2022-12-14 11:10:17,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970880637] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:10:17,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:10:17,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 11:10:17,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216021537] [2022-12-14 11:10:17,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:10:17,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:10:17,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:10:17,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:10:17,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:10:17,289 INFO L87 Difference]: Start difference. First operand 819 states and 1059 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-12-14 11:10:19,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:10:19,199 INFO L93 Difference]: Finished difference Result 819 states and 1059 transitions. [2022-12-14 11:10:19,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 11:10:19,199 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 118 [2022-12-14 11:10:19,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:10:19,202 INFO L225 Difference]: With dead ends: 819 [2022-12-14 11:10:19,202 INFO L226 Difference]: Without dead ends: 817 [2022-12-14 11:10:19,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:10:19,202 INFO L413 NwaCegarLoop]: 847 mSDtfsCounter, 938 mSDsluCounter, 847 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 940 SdHoareTripleChecker+Valid, 1694 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-12-14 11:10:19,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [940 Valid, 1694 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-12-14 11:10:19,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 817 states. [2022-12-14 11:10:19,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 817 to 817. [2022-12-14 11:10:19,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 817 states, 463 states have (on average 1.2138228941684666) internal successors, (562), 487 states have internal predecessors, (562), 247 states have call successors, (247), 94 states have call predecessors, (247), 94 states have return successors, (248), 243 states have call predecessors, (248), 245 states have call successors, (248) [2022-12-14 11:10:19,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 817 states to 817 states and 1057 transitions. [2022-12-14 11:10:19,277 INFO L78 Accepts]: Start accepts. Automaton has 817 states and 1057 transitions. Word has length 118 [2022-12-14 11:10:19,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:10:19,277 INFO L495 AbstractCegarLoop]: Abstraction has 817 states and 1057 transitions. [2022-12-14 11:10:19,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-12-14 11:10:19,278 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 1057 transitions. [2022-12-14 11:10:19,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-12-14 11:10:19,279 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:10:19,279 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] [2022-12-14 11:10:19,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-14 11:10:19,279 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 11:10:19,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:10:19,279 INFO L85 PathProgramCache]: Analyzing trace with hash -907205222, now seen corresponding path program 1 times [2022-12-14 11:10:19,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:10:19,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818726792] [2022-12-14 11:10:19,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:10:19,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:10:19,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:10:19,561 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 11:10:19,561 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:10:19,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818726792] [2022-12-14 11:10:19,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818726792] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:10:19,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:10:19,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 11:10:19,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575878288] [2022-12-14 11:10:19,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:10:19,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:10:19,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:10:19,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:10:19,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:10:19,563 INFO L87 Difference]: Start difference. First operand 817 states and 1057 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-12-14 11:10:21,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:10:21,108 INFO L93 Difference]: Finished difference Result 817 states and 1057 transitions. [2022-12-14 11:10:21,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 11:10:21,108 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 123 [2022-12-14 11:10:21,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:10:21,112 INFO L225 Difference]: With dead ends: 817 [2022-12-14 11:10:21,112 INFO L226 Difference]: Without dead ends: 815 [2022-12-14 11:10:21,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:10:21,113 INFO L413 NwaCegarLoop]: 845 mSDtfsCounter, 935 mSDsluCounter, 845 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 937 SdHoareTripleChecker+Valid, 1690 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 11:10:21,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [937 Valid, 1690 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 11:10:21,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2022-12-14 11:10:21,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 815. [2022-12-14 11:10:21,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 815 states, 462 states have (on average 1.2121212121212122) internal successors, (560), 485 states have internal predecessors, (560), 247 states have call successors, (247), 94 states have call predecessors, (247), 94 states have return successors, (248), 243 states have call predecessors, (248), 245 states have call successors, (248) [2022-12-14 11:10:21,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 1055 transitions. [2022-12-14 11:10:21,256 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 1055 transitions. Word has length 123 [2022-12-14 11:10:21,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:10:21,256 INFO L495 AbstractCegarLoop]: Abstraction has 815 states and 1055 transitions. [2022-12-14 11:10:21,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-12-14 11:10:21,257 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 1055 transitions. [2022-12-14 11:10:21,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-12-14 11:10:21,259 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:10:21,259 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] [2022-12-14 11:10:21,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 11:10:21,259 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 11:10:21,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:10:21,260 INFO L85 PathProgramCache]: Analyzing trace with hash 360325278, now seen corresponding path program 1 times [2022-12-14 11:10:21,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:10:21,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025927518] [2022-12-14 11:10:21,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:10:21,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:10:21,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:10:21,460 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 11:10:21,460 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:10:21,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025927518] [2022-12-14 11:10:21,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025927518] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:10:21,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:10:21,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 11:10:21,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546335260] [2022-12-14 11:10:21,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:10:21,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:10:21,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:10:21,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:10:21,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:10:21,462 INFO L87 Difference]: Start difference. First operand 815 states and 1055 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-12-14 11:10:22,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:10:22,863 INFO L93 Difference]: Finished difference Result 815 states and 1055 transitions. [2022-12-14 11:10:22,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 11:10:22,863 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 128 [2022-12-14 11:10:22,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:10:22,869 INFO L225 Difference]: With dead ends: 815 [2022-12-14 11:10:22,869 INFO L226 Difference]: Without dead ends: 813 [2022-12-14 11:10:22,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:10:22,870 INFO L413 NwaCegarLoop]: 843 mSDtfsCounter, 932 mSDsluCounter, 843 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 934 SdHoareTripleChecker+Valid, 1686 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 11:10:22,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [934 Valid, 1686 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 11:10:22,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2022-12-14 11:10:23,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 813. [2022-12-14 11:10:23,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 813 states, 461 states have (on average 1.210412147505423) internal successors, (558), 483 states have internal predecessors, (558), 247 states have call successors, (247), 94 states have call predecessors, (247), 94 states have return successors, (248), 243 states have call predecessors, (248), 245 states have call successors, (248) [2022-12-14 11:10:23,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 813 states to 813 states and 1053 transitions. [2022-12-14 11:10:23,017 INFO L78 Accepts]: Start accepts. Automaton has 813 states and 1053 transitions. Word has length 128 [2022-12-14 11:10:23,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:10:23,017 INFO L495 AbstractCegarLoop]: Abstraction has 813 states and 1053 transitions. [2022-12-14 11:10:23,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-12-14 11:10:23,018 INFO L276 IsEmpty]: Start isEmpty. Operand 813 states and 1053 transitions. [2022-12-14 11:10:23,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-12-14 11:10:23,020 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:10:23,020 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] [2022-12-14 11:10:23,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-14 11:10:23,020 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 11:10:23,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:10:23,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1030130746, now seen corresponding path program 1 times [2022-12-14 11:10:23,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:10:23,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407095320] [2022-12-14 11:10:23,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:10:23,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:10:23,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:10:23,182 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2022-12-14 11:10:23,182 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:10:23,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407095320] [2022-12-14 11:10:23,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407095320] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:10:23,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:10:23,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:10:23,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400594616] [2022-12-14 11:10:23,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:10:23,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:10:23,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:10:23,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:10:23,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:10:23,184 INFO L87 Difference]: Start difference. First operand 813 states and 1053 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-12-14 11:10:24,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:10:24,175 INFO L93 Difference]: Finished difference Result 1522 states and 1950 transitions. [2022-12-14 11:10:24,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:10:24,175 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 157 [2022-12-14 11:10:24,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:10:24,178 INFO L225 Difference]: With dead ends: 1522 [2022-12-14 11:10:24,178 INFO L226 Difference]: Without dead ends: 809 [2022-12-14 11:10:24,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:10:24,180 INFO L413 NwaCegarLoop]: 839 mSDtfsCounter, 954 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 954 SdHoareTripleChecker+Valid, 839 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 11:10:24,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [954 Valid, 839 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 11:10:24,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2022-12-14 11:10:24,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 809. [2022-12-14 11:10:24,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 809 states, 458 states have (on average 1.2074235807860263) internal successors, (553), 479 states have internal predecessors, (553), 247 states have call successors, (247), 94 states have call predecessors, (247), 94 states have return successors, (248), 243 states have call predecessors, (248), 245 states have call successors, (248) [2022-12-14 11:10:24,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 1048 transitions. [2022-12-14 11:10:24,267 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 1048 transitions. Word has length 157 [2022-12-14 11:10:24,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:10:24,267 INFO L495 AbstractCegarLoop]: Abstraction has 809 states and 1048 transitions. [2022-12-14 11:10:24,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-12-14 11:10:24,268 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 1048 transitions. [2022-12-14 11:10:24,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-12-14 11:10:24,269 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:10:24,269 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] [2022-12-14 11:10:24,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-14 11:10:24,270 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 11:10:24,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:10:24,270 INFO L85 PathProgramCache]: Analyzing trace with hash 614964679, now seen corresponding path program 1 times [2022-12-14 11:10:24,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:10:24,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333862417] [2022-12-14 11:10:24,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:10:24,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:10:24,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:10:24,614 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2022-12-14 11:10:24,614 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:10:24,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333862417] [2022-12-14 11:10:24,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333862417] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:10:24,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:10:24,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:10:24,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909279243] [2022-12-14 11:10:24,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:10:24,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 11:10:24,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:10:24,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 11:10:24,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:10:24,616 INFO L87 Difference]: Start difference. First operand 809 states and 1048 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-12-14 11:10:26,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:10:26,687 INFO L93 Difference]: Finished difference Result 1140 states and 1425 transitions. [2022-12-14 11:10:26,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 11:10:26,687 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (29), 3 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 156 [2022-12-14 11:10:26,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:10:26,692 INFO L225 Difference]: With dead ends: 1140 [2022-12-14 11:10:26,692 INFO L226 Difference]: Without dead ends: 1138 [2022-12-14 11:10:26,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 11:10:26,693 INFO L413 NwaCegarLoop]: 937 mSDtfsCounter, 662 mSDsluCounter, 2386 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 665 SdHoareTripleChecker+Valid, 3323 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-12-14 11:10:26,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [665 Valid, 3323 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-12-14 11:10:26,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1138 states. [2022-12-14 11:10:26,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1138 to 1116. [2022-12-14 11:10:26,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1116 states, 634 states have (on average 1.1845425867507886) internal successors, (751), 664 states have internal predecessors, (751), 327 states have call successors, (327), 146 states have call predecessors, (327), 145 states have return successors, (329), 315 states have call predecessors, (329), 325 states have call successors, (329) [2022-12-14 11:10:26,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1407 transitions. [2022-12-14 11:10:26,842 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1407 transitions. Word has length 156 [2022-12-14 11:10:26,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:10:26,843 INFO L495 AbstractCegarLoop]: Abstraction has 1116 states and 1407 transitions. [2022-12-14 11:10:26,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-12-14 11:10:26,843 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1407 transitions. [2022-12-14 11:10:26,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-12-14 11:10:26,844 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:10:26,845 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] [2022-12-14 11:10:26,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-14 11:10:26,845 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 11:10:26,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:10:26,845 INFO L85 PathProgramCache]: Analyzing trace with hash 323558860, now seen corresponding path program 1 times [2022-12-14 11:10:26,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:10:26,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564339600] [2022-12-14 11:10:26,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:10:26,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:10:26,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:10:27,149 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2022-12-14 11:10:27,149 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:10:27,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564339600] [2022-12-14 11:10:27,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564339600] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:10:27,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:10:27,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:10:27,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409801795] [2022-12-14 11:10:27,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:10:27,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 11:10:27,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:10:27,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 11:10:27,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:10:27,151 INFO L87 Difference]: Start difference. First operand 1116 states and 1407 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-12-14 11:10:29,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:10:29,544 INFO L93 Difference]: Finished difference Result 1128 states and 1415 transitions. [2022-12-14 11:10:29,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 11:10:29,545 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (29), 3 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 156 [2022-12-14 11:10:29,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:10:29,548 INFO L225 Difference]: With dead ends: 1128 [2022-12-14 11:10:29,548 INFO L226 Difference]: Without dead ends: 1126 [2022-12-14 11:10:29,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 11:10:29,549 INFO L413 NwaCegarLoop]: 893 mSDtfsCounter, 163 mSDsluCounter, 2547 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 3440 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:10:29,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 3440 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-12-14 11:10:29,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2022-12-14 11:10:29,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 1120. [2022-12-14 11:10:29,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1120 states, 637 states have (on average 1.1821036106750393) internal successors, (753), 667 states have internal predecessors, (753), 327 states have call successors, (327), 147 states have call predecessors, (327), 146 states have return successors, (329), 315 states have call predecessors, (329), 325 states have call successors, (329) [2022-12-14 11:10:29,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1120 states to 1120 states and 1409 transitions. [2022-12-14 11:10:29,670 INFO L78 Accepts]: Start accepts. Automaton has 1120 states and 1409 transitions. Word has length 156 [2022-12-14 11:10:29,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:10:29,670 INFO L495 AbstractCegarLoop]: Abstraction has 1120 states and 1409 transitions. [2022-12-14 11:10:29,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-12-14 11:10:29,670 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states and 1409 transitions. [2022-12-14 11:10:29,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-12-14 11:10:29,671 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:10:29,671 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] [2022-12-14 11:10:29,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-14 11:10:29,672 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 11:10:29,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:10:29,672 INFO L85 PathProgramCache]: Analyzing trace with hash 567207896, now seen corresponding path program 1 times [2022-12-14 11:10:29,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:10:29,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563398040] [2022-12-14 11:10:29,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:10:29,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:10:29,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:10:29,812 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 11:10:29,812 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:10:29,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563398040] [2022-12-14 11:10:29,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563398040] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:10:29,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:10:29,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 11:10:29,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898265078] [2022-12-14 11:10:29,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:10:29,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:10:29,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:10:29,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:10:29,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:10:29,814 INFO L87 Difference]: Start difference. First operand 1120 states and 1409 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-12-14 11:10:31,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:10:31,032 INFO L93 Difference]: Finished difference Result 1120 states and 1409 transitions. [2022-12-14 11:10:31,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 11:10:31,032 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 133 [2022-12-14 11:10:31,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:10:31,037 INFO L225 Difference]: With dead ends: 1120 [2022-12-14 11:10:31,037 INFO L226 Difference]: Without dead ends: 1118 [2022-12-14 11:10:31,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:10:31,038 INFO L413 NwaCegarLoop]: 836 mSDtfsCounter, 924 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 1672 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:10:31,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [926 Valid, 1672 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 11:10:31,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2022-12-14 11:10:31,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 1118. [2022-12-14 11:10:31,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1118 states, 636 states have (on average 1.179245283018868) internal successors, (750), 665 states have internal predecessors, (750), 327 states have call successors, (327), 147 states have call predecessors, (327), 146 states have return successors, (329), 315 states have call predecessors, (329), 325 states have call successors, (329) [2022-12-14 11:10:31,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1118 states to 1118 states and 1406 transitions. [2022-12-14 11:10:31,168 INFO L78 Accepts]: Start accepts. Automaton has 1118 states and 1406 transitions. Word has length 133 [2022-12-14 11:10:31,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:10:31,168 INFO L495 AbstractCegarLoop]: Abstraction has 1118 states and 1406 transitions. [2022-12-14 11:10:31,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-12-14 11:10:31,169 INFO L276 IsEmpty]: Start isEmpty. Operand 1118 states and 1406 transitions. [2022-12-14 11:10:31,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-12-14 11:10:31,170 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:10:31,170 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] [2022-12-14 11:10:31,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-14 11:10:31,170 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 11:10:31,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:10:31,170 INFO L85 PathProgramCache]: Analyzing trace with hash 283696792, now seen corresponding path program 1 times [2022-12-14 11:10:31,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:10:31,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372773539] [2022-12-14 11:10:31,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:10:31,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:10:31,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:10:31,338 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2022-12-14 11:10:31,338 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:10:31,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372773539] [2022-12-14 11:10:31,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372773539] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:10:31,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [573378632] [2022-12-14 11:10:31,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:10:31,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:10:31,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:10:31,340 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:10:31,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 11:10:31,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:10:31,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 2018 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 11:10:31,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:10:31,846 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-12-14 11:10:31,846 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:10:31,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [573378632] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:10:31,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 11:10:31,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2022-12-14 11:10:31,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542580683] [2022-12-14 11:10:31,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:10:31,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:10:31,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:10:31,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:10:31,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-14 11:10:31,849 INFO L87 Difference]: Start difference. First operand 1118 states and 1406 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-12-14 11:10:32,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:10:32,841 INFO L93 Difference]: Finished difference Result 2128 states and 2654 transitions. [2022-12-14 11:10:32,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:10:32,841 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (23), 2 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 162 [2022-12-14 11:10:32,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:10:32,845 INFO L225 Difference]: With dead ends: 2128 [2022-12-14 11:10:32,845 INFO L226 Difference]: Without dead ends: 1136 [2022-12-14 11:10:32,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-14 11:10:32,847 INFO L413 NwaCegarLoop]: 844 mSDtfsCounter, 871 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 871 SdHoareTripleChecker+Valid, 894 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 11:10:32,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [871 Valid, 894 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 11:10:32,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2022-12-14 11:10:32,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 1134. [2022-12-14 11:10:32,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1134 states, 643 states have (on average 1.1741835147744946) internal successors, (755), 672 states have internal predecessors, (755), 331 states have call successors, (331), 153 states have call predecessors, (331), 152 states have return successors, (333), 318 states have call predecessors, (333), 329 states have call successors, (333) [2022-12-14 11:10:32,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1134 states to 1134 states and 1419 transitions. [2022-12-14 11:10:32,976 INFO L78 Accepts]: Start accepts. Automaton has 1134 states and 1419 transitions. Word has length 162 [2022-12-14 11:10:32,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:10:32,976 INFO L495 AbstractCegarLoop]: Abstraction has 1134 states and 1419 transitions. [2022-12-14 11:10:32,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-12-14 11:10:32,976 INFO L276 IsEmpty]: Start isEmpty. Operand 1134 states and 1419 transitions. [2022-12-14 11:10:32,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-12-14 11:10:32,977 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:10:32,977 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] [2022-12-14 11:10:32,987 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 11:10:33,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-12-14 11:10:33,178 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 11:10:33,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:10:33,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1124366675, now seen corresponding path program 1 times [2022-12-14 11:10:33,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:10:33,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311954859] [2022-12-14 11:10:33,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:10:33,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:10:33,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:10:33,318 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 11:10:33,318 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:10:33,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311954859] [2022-12-14 11:10:33,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311954859] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:10:33,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:10:33,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 11:10:33,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267941482] [2022-12-14 11:10:33,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:10:33,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:10:33,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:10:33,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:10:33,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:10:33,320 INFO L87 Difference]: Start difference. First operand 1134 states and 1419 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-12-14 11:10:34,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:10:34,673 INFO L93 Difference]: Finished difference Result 1134 states and 1419 transitions. [2022-12-14 11:10:34,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 11:10:34,674 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 138 [2022-12-14 11:10:34,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:10:34,676 INFO L225 Difference]: With dead ends: 1134 [2022-12-14 11:10:34,677 INFO L226 Difference]: Without dead ends: 1132 [2022-12-14 11:10:34,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:10:34,677 INFO L413 NwaCegarLoop]: 829 mSDtfsCounter, 916 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 918 SdHoareTripleChecker+Valid, 1658 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:10:34,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [918 Valid, 1658 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 11:10:34,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2022-12-14 11:10:34,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 1132. [2022-12-14 11:10:34,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1132 states, 642 states have (on average 1.1713395638629283) internal successors, (752), 670 states have internal predecessors, (752), 331 states have call successors, (331), 153 states have call predecessors, (331), 152 states have return successors, (333), 318 states have call predecessors, (333), 329 states have call successors, (333) [2022-12-14 11:10:34,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1132 states to 1132 states and 1416 transitions. [2022-12-14 11:10:34,805 INFO L78 Accepts]: Start accepts. Automaton has 1132 states and 1416 transitions. Word has length 138 [2022-12-14 11:10:34,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:10:34,805 INFO L495 AbstractCegarLoop]: Abstraction has 1132 states and 1416 transitions. [2022-12-14 11:10:34,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-12-14 11:10:34,806 INFO L276 IsEmpty]: Start isEmpty. Operand 1132 states and 1416 transitions. [2022-12-14 11:10:34,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-12-14 11:10:34,807 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:10:34,807 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] [2022-12-14 11:10:34,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-14 11:10:34,807 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 11:10:34,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:10:34,807 INFO L85 PathProgramCache]: Analyzing trace with hash -2114702485, now seen corresponding path program 1 times [2022-12-14 11:10:34,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:10:34,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707771494] [2022-12-14 11:10:34,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:10:34,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:10:34,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:10:34,943 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 11:10:34,943 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:10:34,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707771494] [2022-12-14 11:10:34,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707771494] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:10:34,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:10:34,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 11:10:34,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482875334] [2022-12-14 11:10:34,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:10:34,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:10:34,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:10:34,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:10:34,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:10:34,944 INFO L87 Difference]: Start difference. First operand 1132 states and 1416 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 11:10:36,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:10:36,333 INFO L93 Difference]: Finished difference Result 1132 states and 1416 transitions. [2022-12-14 11:10:36,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 11:10:36,333 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 143 [2022-12-14 11:10:36,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:10:36,336 INFO L225 Difference]: With dead ends: 1132 [2022-12-14 11:10:36,336 INFO L226 Difference]: Without dead ends: 1130 [2022-12-14 11:10:36,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:10:36,337 INFO L413 NwaCegarLoop]: 827 mSDtfsCounter, 913 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 915 SdHoareTripleChecker+Valid, 1654 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:10:36,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [915 Valid, 1654 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 11:10:36,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1130 states. [2022-12-14 11:10:36,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1130 to 1130. [2022-12-14 11:10:36,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1130 states, 641 states have (on average 1.1684867394695788) internal successors, (749), 668 states have internal predecessors, (749), 331 states have call successors, (331), 153 states have call predecessors, (331), 152 states have return successors, (333), 318 states have call predecessors, (333), 329 states have call successors, (333) [2022-12-14 11:10:36,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1130 states to 1130 states and 1413 transitions. [2022-12-14 11:10:36,467 INFO L78 Accepts]: Start accepts. Automaton has 1130 states and 1413 transitions. Word has length 143 [2022-12-14 11:10:36,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:10:36,467 INFO L495 AbstractCegarLoop]: Abstraction has 1130 states and 1413 transitions. [2022-12-14 11:10:36,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 11:10:36,468 INFO L276 IsEmpty]: Start isEmpty. Operand 1130 states and 1413 transitions. [2022-12-14 11:10:36,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-12-14 11:10:36,468 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:10:36,469 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] [2022-12-14 11:10:36,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-14 11:10:36,469 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 11:10:36,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:10:36,469 INFO L85 PathProgramCache]: Analyzing trace with hash 168369076, now seen corresponding path program 1 times [2022-12-14 11:10:36,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:10:36,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380603566] [2022-12-14 11:10:36,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:10:36,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:10:36,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:10:37,064 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2022-12-14 11:10:37,064 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:10:37,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380603566] [2022-12-14 11:10:37,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380603566] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:10:37,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:10:37,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 11:10:37,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665572902] [2022-12-14 11:10:37,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:10:37,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 11:10:37,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:10:37,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 11:10:37,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 11:10:37,066 INFO L87 Difference]: Start difference. First operand 1130 states and 1413 transitions. Second operand has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 5 states have call predecessors, (25), 3 states have call successors, (25) [2022-12-14 11:10:41,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:10:41,942 INFO L93 Difference]: Finished difference Result 2635 states and 3461 transitions. [2022-12-14 11:10:41,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 11:10:41,943 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 5 states have call predecessors, (25), 3 states have call successors, (25) Word has length 175 [2022-12-14 11:10:41,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:10:41,947 INFO L225 Difference]: With dead ends: 2635 [2022-12-14 11:10:41,947 INFO L226 Difference]: Without dead ends: 1558 [2022-12-14 11:10:41,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-12-14 11:10:41,949 INFO L413 NwaCegarLoop]: 1273 mSDtfsCounter, 231 mSDsluCounter, 7301 mSDsCounter, 0 mSdLazyCounter, 1162 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 8574 SdHoareTripleChecker+Invalid, 1163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-12-14 11:10:41,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 8574 Invalid, 1163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1162 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-12-14 11:10:41,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1558 states. [2022-12-14 11:10:42,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1558 to 1136. [2022-12-14 11:10:42,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1136 states, 645 states have (on average 1.1674418604651162) internal successors, (753), 671 states have internal predecessors, (753), 332 states have call successors, (332), 153 states have call predecessors, (332), 153 states have return successors, (338), 321 states have call predecessors, (338), 330 states have call successors, (338) [2022-12-14 11:10:42,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 1423 transitions. [2022-12-14 11:10:42,113 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 1423 transitions. Word has length 175 [2022-12-14 11:10:42,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:10:42,113 INFO L495 AbstractCegarLoop]: Abstraction has 1136 states and 1423 transitions. [2022-12-14 11:10:42,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 5 states have call predecessors, (25), 3 states have call successors, (25) [2022-12-14 11:10:42,113 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 1423 transitions. [2022-12-14 11:10:42,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-12-14 11:10:42,114 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:10:42,114 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] [2022-12-14 11:10:42,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-14 11:10:42,114 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 11:10:42,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:10:42,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1861450693, now seen corresponding path program 1 times [2022-12-14 11:10:42,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:10:42,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550135866] [2022-12-14 11:10:42,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:10:42,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:10:42,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:10:42,265 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 11:10:42,266 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:10:42,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550135866] [2022-12-14 11:10:42,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550135866] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:10:42,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:10:42,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 11:10:42,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179971607] [2022-12-14 11:10:42,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:10:42,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:10:42,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:10:42,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:10:42,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:10:42,267 INFO L87 Difference]: Start difference. First operand 1136 states and 1423 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 11:10:44,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:10:44,087 INFO L93 Difference]: Finished difference Result 2161 states and 2698 transitions. [2022-12-14 11:10:44,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 11:10:44,088 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 148 [2022-12-14 11:10:44,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:10:44,096 INFO L225 Difference]: With dead ends: 2161 [2022-12-14 11:10:44,097 INFO L226 Difference]: Without dead ends: 1932 [2022-12-14 11:10:44,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:10:44,099 INFO L413 NwaCegarLoop]: 1037 mSDtfsCounter, 859 mSDsluCounter, 1796 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 859 SdHoareTripleChecker+Valid, 2833 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 11:10:44,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [859 Valid, 2833 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 11:10:44,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1932 states. [2022-12-14 11:10:44,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1932 to 1913. [2022-12-14 11:10:44,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1913 states, 1092 states have (on average 1.1794871794871795) internal successors, (1288), 1134 states have internal predecessors, (1288), 560 states have call successors, (560), 256 states have call predecessors, (560), 255 states have return successors, (577), 539 states have call predecessors, (577), 558 states have call successors, (577) [2022-12-14 11:10:44,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1913 states to 1913 states and 2425 transitions. [2022-12-14 11:10:44,388 INFO L78 Accepts]: Start accepts. Automaton has 1913 states and 2425 transitions. Word has length 148 [2022-12-14 11:10:44,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:10:44,389 INFO L495 AbstractCegarLoop]: Abstraction has 1913 states and 2425 transitions. [2022-12-14 11:10:44,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 11:10:44,389 INFO L276 IsEmpty]: Start isEmpty. Operand 1913 states and 2425 transitions. [2022-12-14 11:10:44,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-12-14 11:10:44,390 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:10:44,390 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] [2022-12-14 11:10:44,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-14 11:10:44,390 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 11:10:44,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:10:44,391 INFO L85 PathProgramCache]: Analyzing trace with hash -2081149927, now seen corresponding path program 1 times [2022-12-14 11:10:44,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:10:44,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261783003] [2022-12-14 11:10:44,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:10:44,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:10:44,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:10:45,764 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2022-12-14 11:10:45,765 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:10:45,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261783003] [2022-12-14 11:10:45,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261783003] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:10:45,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:10:45,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-14 11:10:45,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590927780] [2022-12-14 11:10:45,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:10:45,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 11:10:45,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:10:45,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 11:10:45,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-12-14 11:10:45,767 INFO L87 Difference]: Start difference. First operand 1913 states and 2425 transitions. Second operand has 14 states, 12 states have (on average 5.0) internal successors, (60), 11 states have internal predecessors, (60), 6 states have call successors, (30), 3 states have call predecessors, (30), 4 states have return successors, (28), 7 states have call predecessors, (28), 5 states have call successors, (28) [2022-12-14 11:10:57,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:10:57,590 INFO L93 Difference]: Finished difference Result 5088 states and 6947 transitions. [2022-12-14 11:10:57,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 11:10:57,591 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.0) internal successors, (60), 11 states have internal predecessors, (60), 6 states have call successors, (30), 3 states have call predecessors, (30), 4 states have return successors, (28), 7 states have call predecessors, (28), 5 states have call successors, (28) Word has length 188 [2022-12-14 11:10:57,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:10:57,600 INFO L225 Difference]: With dead ends: 5088 [2022-12-14 11:10:57,600 INFO L226 Difference]: Without dead ends: 3351 [2022-12-14 11:10:57,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-12-14 11:10:57,603 INFO L413 NwaCegarLoop]: 1646 mSDtfsCounter, 522 mSDsluCounter, 18350 mSDsCounter, 0 mSdLazyCounter, 3225 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 844 SdHoareTripleChecker+Valid, 19996 SdHoareTripleChecker+Invalid, 3241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 3225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:10:57,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [844 Valid, 19996 Invalid, 3241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 3225 Invalid, 0 Unknown, 0 Unchecked, 11.1s Time] [2022-12-14 11:10:57,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3351 states. [2022-12-14 11:10:57,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3351 to 1949. [2022-12-14 11:10:57,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1949 states, 1110 states have (on average 1.1765765765765765) internal successors, (1306), 1154 states have internal predecessors, (1306), 574 states have call successors, (574), 258 states have call predecessors, (574), 259 states have return successors, (595), 553 states have call predecessors, (595), 572 states have call successors, (595) [2022-12-14 11:10:57,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1949 states to 1949 states and 2475 transitions. [2022-12-14 11:10:57,959 INFO L78 Accepts]: Start accepts. Automaton has 1949 states and 2475 transitions. Word has length 188 [2022-12-14 11:10:57,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:10:57,959 INFO L495 AbstractCegarLoop]: Abstraction has 1949 states and 2475 transitions. [2022-12-14 11:10:57,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.0) internal successors, (60), 11 states have internal predecessors, (60), 6 states have call successors, (30), 3 states have call predecessors, (30), 4 states have return successors, (28), 7 states have call predecessors, (28), 5 states have call successors, (28) [2022-12-14 11:10:57,959 INFO L276 IsEmpty]: Start isEmpty. Operand 1949 states and 2475 transitions. [2022-12-14 11:10:57,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-12-14 11:10:57,960 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:10:57,961 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] [2022-12-14 11:10:57,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-12-14 11:10:57,961 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 11:10:57,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:10:57,961 INFO L85 PathProgramCache]: Analyzing trace with hash 740549212, now seen corresponding path program 1 times [2022-12-14 11:10:57,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:10:57,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287708379] [2022-12-14 11:10:57,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:10:57,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:10:58,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:10:59,099 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 4 proven. 46 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2022-12-14 11:10:59,100 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:10:59,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287708379] [2022-12-14 11:10:59,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287708379] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:10:59,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [283689690] [2022-12-14 11:10:59,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:10:59,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:10:59,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:10:59,101 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:10:59,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 11:11:01,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:11:01,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 2368 conjuncts, 86 conjunts are in the unsatisfiable core [2022-12-14 11:11:01,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:11:01,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 82 [2022-12-14 11:11:01,821 INFO L350 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 53 treesize of output 82 [2022-12-14 11:11:02,085 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 13 [2022-12-14 11:11:02,091 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 11:11:02,092 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 13 [2022-12-14 11:11:02,153 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2022-12-14 11:11:02,153 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:11:02,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [283689690] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:11:02,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 11:11:02,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [9] total 17 [2022-12-14 11:11:02,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131460374] [2022-12-14 11:11:02,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:11:02,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 11:11:02,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:11:02,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 11:11:02,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2022-12-14 11:11:02,156 INFO L87 Difference]: Start difference. First operand 1949 states and 2475 transitions. Second operand has 10 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 4 states have call successors, (30), 4 states have call predecessors, (30), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 11:11:14,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:11:14,807 INFO L93 Difference]: Finished difference Result 4557 states and 6037 transitions. [2022-12-14 11:11:14,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 11:11:14,808 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 4 states have call successors, (30), 4 states have call predecessors, (30), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 191 [2022-12-14 11:11:14,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:11:14,815 INFO L225 Difference]: With dead ends: 4557 [2022-12-14 11:11:14,815 INFO L226 Difference]: Without dead ends: 2672 [2022-12-14 11:11:14,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2022-12-14 11:11:14,819 INFO L413 NwaCegarLoop]: 890 mSDtfsCounter, 367 mSDsluCounter, 4374 mSDsCounter, 0 mSdLazyCounter, 6087 mSolverCounterSat, 247 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 508 SdHoareTripleChecker+Valid, 5264 SdHoareTripleChecker+Invalid, 6334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 247 IncrementalHoareTripleChecker+Valid, 6087 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2022-12-14 11:11:14,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [508 Valid, 5264 Invalid, 6334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [247 Valid, 6087 Invalid, 0 Unknown, 0 Unchecked, 11.7s Time] [2022-12-14 11:11:14,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2672 states. [2022-12-14 11:11:15,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2672 to 2023. [2022-12-14 11:11:15,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2023 states, 1151 states have (on average 1.1728931364031276) internal successors, (1350), 1198 states have internal predecessors, (1350), 600 states have call successors, (600), 260 states have call predecessors, (600), 266 states have return successors, (635), 581 states have call predecessors, (635), 598 states have call successors, (635) [2022-12-14 11:11:15,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2023 states to 2023 states and 2585 transitions. [2022-12-14 11:11:15,262 INFO L78 Accepts]: Start accepts. Automaton has 2023 states and 2585 transitions. Word has length 191 [2022-12-14 11:11:15,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:11:15,262 INFO L495 AbstractCegarLoop]: Abstraction has 2023 states and 2585 transitions. [2022-12-14 11:11:15,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 4 states have call successors, (30), 4 states have call predecessors, (30), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 11:11:15,262 INFO L276 IsEmpty]: Start isEmpty. Operand 2023 states and 2585 transitions. [2022-12-14 11:11:15,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-12-14 11:11:15,263 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:11:15,263 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] [2022-12-14 11:11:15,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-14 11:11:15,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:11:15,464 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 11:11:15,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:11:15,464 INFO L85 PathProgramCache]: Analyzing trace with hash -597424285, now seen corresponding path program 1 times [2022-12-14 11:11:15,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:11:15,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170216272] [2022-12-14 11:11:15,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:11:15,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:11:15,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:11:15,940 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 323 trivial. 0 not checked. [2022-12-14 11:11:15,940 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:11:15,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170216272] [2022-12-14 11:11:15,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170216272] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:11:15,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:11:15,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 11:11:15,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23333416] [2022-12-14 11:11:15,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:11:15,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 11:11:15,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:11:15,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 11:11:15,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-14 11:11:15,942 INFO L87 Difference]: Start difference. First operand 2023 states and 2585 transitions. Second operand has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (32), 3 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 1 states have call successors, (30) [2022-12-14 11:11:20,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:11:20,363 INFO L93 Difference]: Finished difference Result 2199 states and 2854 transitions. [2022-12-14 11:11:20,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 11:11:20,363 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (32), 3 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 1 states have call successors, (30) Word has length 180 [2022-12-14 11:11:20,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:11:20,369 INFO L225 Difference]: With dead ends: 2199 [2022-12-14 11:11:20,369 INFO L226 Difference]: Without dead ends: 2197 [2022-12-14 11:11:20,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-12-14 11:11:20,369 INFO L413 NwaCegarLoop]: 962 mSDtfsCounter, 290 mSDsluCounter, 4303 mSDsCounter, 0 mSdLazyCounter, 1083 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 5265 SdHoareTripleChecker+Invalid, 1183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-12-14 11:11:20,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 5265 Invalid, 1183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1083 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-12-14 11:11:20,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2197 states. [2022-12-14 11:11:20,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2197 to 2051. [2022-12-14 11:11:20,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2051 states, 1169 states have (on average 1.1685201026518393) internal successors, (1366), 1216 states have internal predecessors, (1366), 604 states have call successors, (604), 268 states have call predecessors, (604), 272 states have return successors, (639), 583 states have call predecessors, (639), 602 states have call successors, (639) [2022-12-14 11:11:20,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2051 states to 2051 states and 2609 transitions. [2022-12-14 11:11:20,750 INFO L78 Accepts]: Start accepts. Automaton has 2051 states and 2609 transitions. Word has length 180 [2022-12-14 11:11:20,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:11:20,750 INFO L495 AbstractCegarLoop]: Abstraction has 2051 states and 2609 transitions. [2022-12-14 11:11:20,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (32), 3 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 1 states have call successors, (30) [2022-12-14 11:11:20,750 INFO L276 IsEmpty]: Start isEmpty. Operand 2051 states and 2609 transitions. [2022-12-14 11:11:20,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-12-14 11:11:20,751 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:11:20,751 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] [2022-12-14 11:11:20,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-12-14 11:11:20,752 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 11:11:20,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:11:20,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1103421134, now seen corresponding path program 1 times [2022-12-14 11:11:20,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:11:20,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403581131] [2022-12-14 11:11:20,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:11:20,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:11:21,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:11:21,642 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 4 proven. 46 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2022-12-14 11:11:21,642 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:11:21,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403581131] [2022-12-14 11:11:21,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403581131] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:11:21,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [183871389] [2022-12-14 11:11:21,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:11:21,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:11:21,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:11:21,643 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:11:21,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 11:11:22,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:11:22,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 2385 conjuncts, 49 conjunts are in the unsatisfiable core [2022-12-14 11:11:22,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:11:22,257 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 55 [2022-12-14 11:11:22,369 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2022-12-14 11:11:22,370 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:11:22,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [183871389] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:11:22,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 11:11:22,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16 [2022-12-14 11:11:22,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140974121] [2022-12-14 11:11:22,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:11:22,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 11:11:22,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:11:22,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 11:11:22,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2022-12-14 11:11:22,371 INFO L87 Difference]: Start difference. First operand 2051 states and 2609 transitions. Second operand has 9 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (30), 4 states have call predecessors, (30), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 11:11:30,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:11:30,974 INFO L93 Difference]: Finished difference Result 4517 states and 5959 transitions. [2022-12-14 11:11:30,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 11:11:30,974 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (30), 4 states have call predecessors, (30), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 192 [2022-12-14 11:11:30,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:11:30,980 INFO L225 Difference]: With dead ends: 4517 [2022-12-14 11:11:30,981 INFO L226 Difference]: Without dead ends: 2708 [2022-12-14 11:11:30,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-12-14 11:11:30,984 INFO L413 NwaCegarLoop]: 848 mSDtfsCounter, 397 mSDsluCounter, 2425 mSDsCounter, 0 mSdLazyCounter, 5734 mSolverCounterSat, 275 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 3273 SdHoareTripleChecker+Invalid, 6009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 275 IncrementalHoareTripleChecker+Valid, 5734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-12-14 11:11:30,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [555 Valid, 3273 Invalid, 6009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [275 Valid, 5734 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2022-12-14 11:11:30,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2708 states. [2022-12-14 11:11:31,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2708 to 2038. [2022-12-14 11:11:31,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2038 states, 1162 states have (on average 1.1695352839931152) internal successors, (1359), 1209 states have internal predecessors, (1359), 600 states have call successors, (600), 269 states have call predecessors, (600), 270 states have return successors, (625), 576 states have call predecessors, (625), 598 states have call successors, (625) [2022-12-14 11:11:31,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2038 states to 2038 states and 2584 transitions. [2022-12-14 11:11:31,397 INFO L78 Accepts]: Start accepts. Automaton has 2038 states and 2584 transitions. Word has length 192 [2022-12-14 11:11:31,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:11:31,397 INFO L495 AbstractCegarLoop]: Abstraction has 2038 states and 2584 transitions. [2022-12-14 11:11:31,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (30), 4 states have call predecessors, (30), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 11:11:31,398 INFO L276 IsEmpty]: Start isEmpty. Operand 2038 states and 2584 transitions. [2022-12-14 11:11:31,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-12-14 11:11:31,399 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:11:31,399 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] [2022-12-14 11:11:31,410 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 11:11:31,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:11:31,599 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 11:11:31,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:11:31,600 INFO L85 PathProgramCache]: Analyzing trace with hash 505613842, now seen corresponding path program 1 times [2022-12-14 11:11:31,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:11:31,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270380490] [2022-12-14 11:11:31,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:11:31,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:11:31,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:11:32,665 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 4 proven. 46 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2022-12-14 11:11:32,665 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:11:32,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270380490] [2022-12-14 11:11:32,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270380490] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:11:32,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615809787] [2022-12-14 11:11:32,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:11:32,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:11:32,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:11:32,667 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:11:32,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b52a78b-2517-4401-84ef-8e59dfbd9a75/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 11:11:33,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:11:33,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 2410 conjuncts, 40 conjunts are in the unsatisfiable core [2022-12-14 11:11:33,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:11:33,858 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 220 proven. 2 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2022-12-14 11:11:33,858 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:11:34,170 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 13 proven. 33 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2022-12-14 11:11:34,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [615809787] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:11:34,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [458522751] [2022-12-14 11:11:34,192 INFO L159 IcfgInterpreter]: Started Sifa with 109 locations of interest [2022-12-14 11:11:34,192 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:11:34,195 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:11:34,199 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:11:34,199 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:11:35,115 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-12-14 11:11:35,224 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-12-14 11:11:35,271 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-12-14 11:11:35,311 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-12-14 11:11:35,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-12-14 11:11:35,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:11:35,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:11:35,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:11:35,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:11:35,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:11:35,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:11:35,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:11:35,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:11:35,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:11:35,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:11:35,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:11:35,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:11:35,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 78 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 107 [2022-12-14 11:11:35,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-12-14 11:11:36,025 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-12-14 11:11:36,095 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-12-14 11:11:36,129 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-12-14 11:11:36,172 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-12-14 11:11:36,251 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-12-14 11:11:36,430 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-12-14 11:11:36,501 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 135 [2022-12-14 11:11:36,584 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-12-14 11:11:37,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:11:37,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:11:37,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:11:37,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:11:37,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:11:37,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:11:37,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:11:37,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:11:37,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:11:37,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:11:37,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 55 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 89 [2022-12-14 11:11:37,193 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 9 [2022-12-14 11:17:23,396 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 11:17:23,399 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-12-14 11:19:27,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,058 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:19:27,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,091 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:19:27,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,095 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:19:27,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:27,428 INFO L321 Elim1Store]: treesize reduction 44, result has 37.1 percent of original size [2022-12-14 11:19:27,430 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 77 select indices, 77 select index equivalence classes, 1000 disjoint index pairs (out of 2926 index pairs), introduced 77 new quantified variables, introduced 3 case distinctions, treesize of input 4617 treesize of output 4392 [2022-12-14 11:19:28,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,105 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:19:28,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,136 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:19:28,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,141 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:19:28,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,327 INFO L321 Elim1Store]: treesize reduction 36, result has 48.6 percent of original size [2022-12-14 11:19:28,328 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 77 select indices, 77 select index equivalence classes, 1000 disjoint index pairs (out of 2926 index pairs), introduced 77 new quantified variables, introduced 3 case distinctions, treesize of input 4609 treesize of output 4392 [2022-12-14 11:19:28,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:28,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:29,424 INFO L321 Elim1Store]: treesize reduction 119, result has 50.2 percent of original size [2022-12-14 11:19:29,425 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 21 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 14 case distinctions, treesize of input 4589 treesize of output 4581 [2022-12-14 11:20:44,270 WARN L233 SmtUtils]: Spent 8.95s on a formula simplification. DAG size of input: 1042 DAG size of output: 1042 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-14 11:22:19,996 WARN L233 SmtUtils]: Spent 7.15s on a formula simplification that was a NOOP. DAG size: 1114 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-14 11:22:34,475 WARN L233 SmtUtils]: Spent 7.15s on a formula simplification that was a NOOP. DAG size: 1111 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)